Content references and permissions:

Tundra:
Sayre, April Pulley. Exploring Earth's Biomes: Tundra. New York: Henry Holt and Company, Inc, 1994, pp.1-57

Kaplan, Elizabeth. Biomes of the World: Tundra. New York: Marshall Cavendish Corporation, 1996, pp.1-59

Woodward, Susan L., The Virtual Geography Department Project and the Department of Geography, Radford University. "Major Biomes of the World." URL:
http://www.runet.edul~swoodwar/CLASSES/GEO235/biomes/main.html. Internet, last visited: July 14, 2001.

Permission:
Vegetation and growthforms table at http://www.runet.edul~swoodwar/CLASSES/GEO235/biomes/main.html, Susan L. Woodward, swoodwar@runet.edu, July 2001. Email message.


Taiga:
Kaplan, Elizabeth. Biomes of the World: Taiga. New York: Marshall Cavendish Corporation, 1996, pp.1-59

Woodward, Susan L., The Virtual Geography Department Project and the Department of Geography, Radford University. "Major Biomes of the World." URL:
http://www.runet.edul~swoodwar/CLASSES/GEO235/biomes/main.html. Internet, last visited: July 14, 2001.

Grassland:
Sayre, April Pulley. Exploring Earth's Biomes: Grasslands. New York: Henry Holt and Company, Inc, 1994, pp.1-57

Ricciuti, Edward R. Biomes of the World: Grassland. New York: Marshall Cavendish Corporation, 1996, pp.1-59

Lambert, David. Our World: Grasslands. New Jersey: Silver Burdett Press, 1988, pp.1-42

Woodward, Susan L., The Virtual Geography Department Project and the Department of Geography, Radford University. "Major Biomes of the World." URL:
http://www.runet.edul~swoodwar/CLASSES/GEO235/biomes/main.html. Internet, last visited: August 9, 2001.

Chaparral:
Woodward, Susan L., The Virtual Geography Department Project and the Department of Geography, Radford University. "Major Biomes of the World." URL:
http://www.runet.edul~swoodwar/CLASSES/GEO235/biomes/main.html. Internet, last visited: August 9, 2001.

Ricciuti, Edward R. Biomes of the World: Chaparral. New York: Marshall Cavendish Corporation, 1996, pp.1-59

Desert:
Ricciuti, Edward R. Biomes of the World: Desert. New York: Marshall Cavendish Corporation, 1996, pp.1-59

Lye, Keith. Our World: Deserts. New Jersey: Silver Burdett Press, 1988, pp.1-43

Woodward, Susan L., The Virtual Geography Department Project and the Department of Geography, Radford University. "Major Biomes of the World." URL:
http://www.runet.edul~swoodwar/CLASSES/GEO235/biomes/main.html. Internet,
last visited: August 9, 2001.


Rainforest:
Sayre, April Pulley. Exploring Earth's Biomes: Tropical Rainforest. New York: Henry Holt and Company, Inc, 1994, pp.1-56

Ricciuti, Edward R. Biomes of the World: Rainforest. New York: Marshall Cavendish Corporation, 1996, pp.1-59

Woodward, Susan L., The Virtual Geography Department Project and the Department of Geography, Radford University. "Major Biomes of the World." URL:
http://www.runet.edul~swoodwar/CLASSES/GEO235/biomes/main.html. Internet, last visited: August 9, 2001.



Images/photos/videos permissions and references:

Image of Secondary Deciduous Forest at http://kikori.uf.a.u-tokyo.ac.jp/Tour/Chichibu/rakuyou.html from The University Forests http://kikori.uf.a.u-tokyo.ac.jp/Tour/TourHome.html, Fujiwara Akio, akio@uf.a.u-tokyo.ac.jp, 27 July 2001. Email message.

Image of Subalpine coniferous forest at http://kikori.uf.a.u-tokyo.ac.jp/Tour/Chichibu/zu7.html from The University Forests http://kikori.uf.a.u-tokyo.ac.jp/Tour/TourHome.html, Fujiwara Akio, akio@uf.a.u-tokyo.ac.jp, 27 July 2001. Email message.

Image of Fagus forest at http://kikori.uf.a.u-tokyo.ac.jp/Tour/Chichibu/buna.html from The University Forests http://kikori.uf.a.u-tokyo.ac.jp/Tour/TourHome.html, Fujiwara Akio, akio@uf.a.u-tokyo.ac.jp, 27 July 2001. Email message.

Image of Montane coniferous forest at http://kikori.uf.a.u-tokyo.ac.jp/Tour/Chichibu/zu4.html from The University Forests http://kikori.uf.a.u-tokyo.ac.jp/Tour/TourHome.html, Fujiwara Akio, akio@uf.a.u-tokyo.ac.jp, 27 July 2001. Email message.

Image of Tundra at http://home.pacifier.com/~qayaq/Baffin%20Island%20kayaks.htm from Traditional Arctic Skinboats http://home.pacifier.com/~qayaq/index.htm, Harvey Golden, qayaq@pacifier.com, 27 July 2001. Email message.

Image of Amazon Rainforest at http://acro.harvard.edu/GEI/peru.html from Günther Eichhorn Homepage http://adswww.harvard.edu/~gei/geichhorn.html, Günther Eichhorn, gei@cfa.harvard.edu, 27 July 2001. Email message.

Image of Amazon Rainforest at http://acro.harvard.edu/GEI/peru.html from Günther Eichhorn Homepage http://adswww.harvard.edu/~gei/geichhorn.html, Günther Eichhorn, gei@cfa.harvard.edu, 27 July 2001. Email message.

Image of a flower in the Amazon rainforest at http://acro.harvard.edu/GEI/peru.html from Günther Eichhorn Homepage http://adswww.harvard.edu/~gei/geichhorn.html, Günther Eichhorn, gei@cfa.harvard.edu, 27 July 2001. Email message.

Image of flowers in the Amazon rainforest at http://acro.harvard.edu/GEI/peru.html from Günther Eichhorn Homepage http://adswww.harvard.edu/~gei/geichhorn.html, Günther Eichhorn, gei@cfa.harvard.edu, 27 July 2001. Email message.

Image of a flower in the Amazon rainforest at http://acro.harvard.edu/GEI/peru.html from Günther Eichhorn Homepage http://adswww.harvard.edu/~gei/geichhorn.html, Günther Eichhorn, gei@cfa.harvard.edu, 27 July 2001. Email message.

Image of a jungle along the Amazon river at http://acro.harvard.edu/GEI/peru.html from Günther Eichhorn Homepage http://adswww.harvard.edu/~gei/geichhorn.html, Günther Eichhorn, gei@cfa.harvard.edu, 27 July 2001. Email message.

Image of giant amazon water lilies at http://acro.harvard.edu/GEI/peru.html from Günther Eichhorn Homepage http://adswww.harvard.edu/~gei/geichhorn.html, Günther Eichhorn, gei@cfa.harvard.edu, 27 July 2001. Email message.

Image of a termite nest in the Amazon rainforest at http://acro.harvard.edu/GEI/peru.html from Günther Eichhorn Homepage http://adswww.harvard.edu/~gei/geichhorn.html, Günther Eichhorn, gei@cfa.harvard.edu, 27 July 2001. Email message.

Video of rainforest at http://www.gullivermedia.com.au/videopage.html from Gulliver Films http://www.gullivermedia.com.au/frameset5.html, Larry Zetlin, larryz@gullivermedia.com.au, 28 July 2001. Email message.

Image of steppe grassland at http://askabiologist.asu.edu/research/kazakhstan/landscape.html from ASU Ask a Biologist http://askabiologist.asu.edu/, Charles Kazilek, kazilek@asu.edu, 28 July 2001. Email message.

Image of steppe grassland and lake at http://askabiologist.asu.edu/research/kazakhstan/landscape.html from ASU Ask a Biologist http://askabiologist.asu.edu/, Charles Kazilek, kazilek@asu.edu, 28 July 2001. Email message.

Image of the Polychrome Pass in Denali National park at http://dbecker.www.media.mit.edu/~dbecker/photopages/alaska/docs/denali.html from David Becker's Personal Web Page http://dbecker.www.media.mit.edu/~dbecker/personal.html, David Becker, dbecker@media.mit.edu, 28 July 2001. Email message.

Image of a caribou at http://dbecker.www.media.mit.edu/~dbecker/photopages/alaska/docs/denali.html from David Becker's Personal Web Page http://dbecker.www.media.mit.edu/~dbecker/personal.html, David Becker, dbecker@media.mit.edu, 28 July 2001. Email message.

Image of a rainbow in a tundra at http://dbecker.www.media.mit.edu/~dbecker/photopages/alaska/docs/denali.html from David Becker's Personal Web Page http://dbecker.www.media.mit.edu/~dbecker/personal.html, David Becker, dbecker@media.mit.edu, 28 July 2001. Email message.

Image of dall sheep on alpine biome at http://dbecker.www.media.mit.edu/~dbecker/photopages/alaska/docs/denali.html from David Becker's Personal Web Page http://dbecker.www.media.mit.edu/~dbecker/personal.html, David Becker, dbecker@media.mit.edu, 28 July 2001. Email message.

Image of the Alaska Range at http://dbecker.www.media.mit.edu/~dbecker/photopages/alaska/docs/denali.html from David Becker's Personal Web Page http://dbecker.www.media.mit.edu/~dbecker/personal.html, David Becker, dbecker@media.mit.edu, 28 July 2001. Email message.

Image of bears in the tundra biome at http://dbecker.www.media.mit.edu/~dbecker/photopages/alaska/docs/denali.html from David Becker's Personal Web Page http://dbecker.www.media.mit.edu/~dbecker/personal.html, David Becker, dbecker@media.mit.edu, 28 July 2001. Email message.

Image of steppe grassland at http://www.euronet.nl/users/icu12235/konya/results.htm from 1998 Konya Basin Bird Survey http://www.euronet.nl/users/icu12235/konya/konya.htm, René Vos, Rene.Vos@renevos.net, 28 July 2001. Email message.

Image of steppe grassland at http://www.euronet.nl/users/icu12235/konya/results.htm from 1998 Konya Basin Bird Survey http://www.euronet.nl/users/icu12235/konya/konya.htm, René Vos, Rene.Vos@renevos.net, 28 July 2001. Email message.

Image of rainforest in Pohnpei at http://angwin.csl.uiuc.edu/pohnpei.html from Mark's Page http://angwin.csl.uiuc.edu/~haunma/, Mark A. Haun, markhaun@uiuc.edu, 28 July 2001. Email message.

Image of rainforest in Pohnpei at http://angwin.csl.uiuc.edu/pohnpei.html from Mark's Page http://angwin.csl.uiuc.edu/~haunma/, Mark A. Haun, markhaun@uiuc.edu, 28 July 2001. Email message.

Image of orchids from a rainforest in Pohnpei at http://angwin.csl.uiuc.edu/pohnpei.html from Mark's Page http://angwin.csl.uiuc.edu/~haunma/, Mark A. Haun, markhaun@uiuc.edu, 28 July 2001. Email message.

Image of orchids from a rainforest in Pohnpei at http://angwin.csl.uiuc.edu/pohnpei.html from Mark's Page http://angwin.csl.uiuc.edu/~haunma/, Mark A. Haun, markhaun@uiuc.edu, 28 July 2001. Email message.

Image of orchids from a rainforest in Pohnpei at http://angwin.csl.uiuc.edu/pohnpei.html from Mark's Page http://angwin.csl.uiuc.edu/~haunma/, Mark A. Haun, markhaun@uiuc.edu, 28 July 2001. Email message.

Image of a deciduous plant (Taxodiaceae) at http://www.csdl.tamu.edu/FLORA/cgi/gallery_query?q=deciduous from Vascular Plant Image Gallery http://www.csdl.tamu.edu/FLORA/gallery/gallery_query.htm, Monique Reed, monique@mail.bio.tamu.edu, 28 July 2001. Email message.

Image of deciduous holly at http://www.csdl.tamu.edu/FLORA/taes/tracy/Allen.htm from Vascular Plant Image Gallery http://www.csdl.tamu.edu/FLORA/gallery/gallery_query.htm, Monique Reed, monique@mail.bio.tamu.edu, 28 July 2001. Email message.

Image of Arizona's painted desert/petrified forest at http://cfd.ame.arizona.edu/~richard/photos6/photo6_r.html from Richard's Homepage http://cfd.ame.arizona.edu/~richard/, Richard Sandberg, richard@cfd.ame.arizona.edu, 28 July 2001. Email message.

Image of Arizona's painted desert/petrified forest at http://cfd.ame.arizona.edu/~richard/photos6/photo6_r.html from Richard's Homepage http://cfd.ame.arizona.edu/~richard/, Richard Sandberg, richard@cfd.ame.arizona.edu, 28 July 2001. Email message.

Image of Arizona's painted desert/petrified forest at http://cfd.ame.arizona.edu/~richard/photos6/photo6_r.html from Richard's Homepage http://cfd.ame.arizona.edu/~richard/, Richard Sandberg, richard@cfd.ame.arizona.edu, 28 July 2001. Email message.

Image of natural bridges/arcs at http://cfd.ame.arizona.edu/~richard/photos6/photo6_r.html from Richard's Homepage http://cfd.ame.arizona.edu/~richard/, Richard Sandberg, richard@cfd.ame.arizona.edu, 28 July 2001. Email message.

Image of natural bridges/arcs at http://cfd.ame.arizona.edu/~richard/photos6/photo6_r.html from Richard's Homepage http://cfd.ame.arizona.edu/~richard/, Richard Sandberg, richard@cfd.ame.arizona.edu, 28 July 2001. Email message.

Image of monval at http://cfd.ame.arizona.edu/~richard/photos6/photo6_r.html from Richard's Homepage http://cfd.ame.arizona.edu/~richard/, Richard Sandberg, richard@cfd.ame.arizona.edu, 28 July 2001. Email message.

Image of tundra at http://www.goalaska.com/lodge/location.htm from Adventures Unlimited http://www.goalaska.com/default.htm, Jim Lewis, mis@goalaska.com, 29 July 2001. Email message.

Image of taiga at http://www.k-online.com/~esquared/alaska/part2.htm from Exploring Alaska http://www.k-online.com/~esquared/alaska/intro.htm, Edward Earl, esquared@k-online.com, 29 July 2001. Email message.

Image of steppes grassland at http://sgs.cnr.colostate.edu/About/SiteDescription/SiteDescription.htm from Shortgrass Steppe (SGS) Long-term Ecological Research (LTER) http://sgs.cnr.colostate.edu/Default.htm, Petra Lowe, petra@cnr.colostate.edu, 30 July 2001. Email message.

Image of steppes grassland at http://sgs.cnr.colostate.edu/About/SiteDescription/SiteDescription.htm from Shortgrass Steppe (SGS) Long-term Ecological Research (LTER) http://sgs.cnr.colostate.edu/Default.htm, Petra Lowe, petra@cnr.colostate.edu, 30 July 2001. Email message.

Image of prickly pear cactus from the steppes grassland at http://sgs.cnr.colostate.edu/About/SiteDescription/SiteDescription.htm from Shortgrass Steppe (SGS) Long-term Ecological Research (LTER) http://sgs.cnr.colostate.edu/Default.htm, Petra Lowe, petra@cnr.colostate.edu, 30 July 2001. Email message.

Image of steppes grassland at http://sgs.cnr.colostate.edu/About/PhotoGallery/aerial.htm from Shortgrass Steppe (SGS) Long-term Ecological Research (LTER) http://sgs.cnr.colostate.edu/Default.htm, Petra Lowe, petra@cnr.colostate.edu, 30 July 2001. Email message.

Image of cow on steppes grassland at http://sgs.cnr.colostate.edu/About/PhotoGallery/aerial.htm from Shortgrass Steppe (SGS) Long-term Ecological Research (LTER) http://sgs.cnr.colostate.edu/Default.htm, Petra Lowe, petra@cnr.colostate.edu, 30 July 2001. Email message.

Image of mountain goats on alpine biome at http://www.cophoto.com/aimages.html from Chapman Outdoor Photography http://www.cophoto.com, Larry Chapman, cop@cophoto.com, 31 July 2001. Email message.

Image of taiga to alpine biome at http://www.cophoto.com/aimages.html from Chapman Outdoor Photography http://www.cophoto.com, Larry Chapman, cop@cophoto.com, 31 July 2001. Email message.

Image of billy goat on alpine biome at http://www.cophoto.com/aimages.html from Chapman Outdoor Photography http://www.cophoto.com, Larry Chapman, cop@cophoto.com, 31 July 2001. Email message.

Image of conifers from taiga biome at http://www.cophoto.com/aimages.html from Chapman Outdoor Photography http://www.cophoto.com, Larry Chapman, cop@cophoto.com, 31 July 2001. Email message.

Image of conifers from taiga biome at http://www.cophoto.com/aimages.html from Chapman Outdoor Photography http://www.cophoto.com, Larry Chapman, cop@cophoto.com, 31 July 2001. Email message.

Image of conifers from taiga biome at http://www.cophoto.com/aimages.html from Chapman Outdoor Photography http://www.cophoto.com, Larry Chapman, cop@cophoto.com, 31 July 2001. Email message.

Image of conifers from taiga biome at http://www.cophoto.com/aimages.html from Chapman Outdoor Photography http://www.cophoto.com, Larry Chapman, cop@cophoto.com, 31 July 2001. Email message.

Image of conifers from taiga biome at http://www.cophoto.com/aimages.html from Chapman Outdoor Photography http://www.cophoto.com, Larry Chapman, cop@cophoto.com, 31 July 2001. Email message.

Image of alpine tundra at http://www.cophoto.com/rmnp.html from Chapman Outdoor Photography http://www.cophoto.com, Larry Chapman, cop@cophoto.com, 31 July 2001. Email message.

Image of alpine biome at http://www.cophoto.com/rmnp.html from Chapman Outdoor Photography http://www.cophoto.com, Larry Chapman, cop@cophoto.com, 31 July 2001. Email message.

Image of marmot at http://www.cophoto.com/rmnp.html from Chapman Outdoor Photography http://www.cophoto.com, Larry Chapman, cop@cophoto.com, 31 July 2001. Email message.

Image of aspens with chewed bark at http://www.cophoto.com/rmnp.html from Chapman Outdoor Photography http://www.cophoto.com, Larry Chapman, cop@cophoto.com, 31 July 2001. Email message.

Image of aspens with chewed bark at http://www.cophoto.com/rmnp.html from Chapman Outdoor Photography http://www.cophoto.com, Larry Chapman, cop@cophoto.com, 31 July 2001. Email message.

Image of lichen at http://www.antarctic.com.au/encyclopaedia/bio/LandPl.html from Antartic Adventure http://www.antarctic.com.au/, David Anderson, danderson@antarctic.com.au, 7 August 2001. Email message.

Image of autumn steppe at http://avantart.com/postcards/autumn.html from Av@ntart http://avantart.com/, Connie Mueller-Goedecke, cmg@avantart.com, 5 August 2001. Email message.

Image of spring beauty at http://w3.one.net/~markws/picturebook_ss98.html from Our Backyard Forest http://w3.one.net/~markws/site_index.html, Mark Stephens, markws@one.net, 4 August 2001. Email message.

Images of tundra at http://www.cis.hut.fi/jannes/personal/photo/lapland.html from Janne Sinkkonen http://www.cis.hut.fi/jannes/, Janne Sinkkonen, Janne.Sinkkonen@hut.fi, 9 August 2001. Email message.

Image of aspen tree at http://bat.nmt.edu/photo_gallery/99lab_gallery4.html from Langmuir Labs http://bat.nmt.edu/, Sandra Kieft, kieft@tern.nmt.edu, 13 August 2001. Email message.
(Photo by Steve Leyton, Langmuir Lab)
Images of an elk at http://128.174.172.76/chf/pub/surveyreports/sep-oct96/elk.html from 2001 Illinois Natural History Survey http://www.inhs.uiuc.edu, Dwight Divine, divine@inhs.uiuc.edu, 14 August 2001. Email message.

Diagram of muskeg at http://www.fs.fed.us/r10/tongass/forest_facts/resources/fauna_flora/muskeg.html from Forest Facts http://www.fs.fed.us/r10/tongass/forest_facts/forest_facts.html, Merrily J Jones, mjjones@fs.fed.us, 13 August 2001. Email message.

Image of birch tree at http://geocities.com/~jjjss/winterbirch.html from Joel's Art Gallery http://geocities.com/~jjjss/, Joel B. Schilling, joel@jbschilling.com, 12 August 2001. Email message.

Image of white rhododendron at http://elib.cs.berkeley.edu/cgi/img_query?enlarge=0024+3291+2018+0107 from California Academy of Sciences http://elib.cs.berkeley.edu/, Charles Webber, cburroughs@CalAcademy.org, 19 August 2001. License agreement on site.


Image of tall cotton-grass at http://elib.cs.berkeley.edu/cgi/img_query?enlarge=0024+3291+2015+0133 from California Academy of Sciences http://elib.cs.berkeley.edu/, Charles Webber, cburroughs@CalAcademy.org, 19 August 2001. License agreement on site.


Image of poisonoak at http://elib.cs.berkeley.edu/cgi/img_query?enlarge=8120+3181+4904+0092 from California Academy of Sciences http://elib.cs.berkeley.edu/, Charles Webber, cburroughs@CalAcademy.org, 22 August 2001. License agreement on site.


Image of chaparral at http://www.snowcrest.net/geography/slides/biomes/chap.htm from Biomes of The World http://www.snowcrest.net/geography/slides/biomes/, Linda Freeman, freemanl@snowcrest.net, 22 August 2001. Email message.

Image of ceanothus at http://www.snowcrest.net/geography/slides/biomes/chap.htm from Biomes of The World http://www.snowcrest.net/geography/slides/biomes/, Linda Freeman, freemanl@snowcrest.net, 22 August 2001. Email message.

Image of musk oxen at http://www.freedomone.com/muskoxen.htm from FreedomOne http://www.freedomone.com/, Helga Spande, tspande@earthlink.net, 15 August 2001. Email message.

Image of layers of the rainforest at http://www.srl.caltech.edu/personnel/krubal/rainforest/Edit560s6/www/whlayers.html from Rainforests http://www.srl.caltech.edu/personnel/krubal/rainforest/Edit560s6/, Tom Hutton, thutton@lausd.k12.ca.us, 24 August 2001. Email message.

Image of map of tropical rainforests at http://www.srl.caltech.edu/personnel/krubal/rainforest/Edit560s6/www/where.html from Rainforests http://www.srl.caltech.edu/personnel/krubal/rainforest/Edit560s6/, Tom Hutton, thutton@lausd.k12.ca.us, 24 August 2001. Email message.

Image of rainforest in Central America at http://www.srl.caltech.edu/personnel/krubal/rainforest/Edit560s6/www/where.html from Rainforests http://www.srl.caltech.edu/personnel/krubal/rainforest/Edit560s6/, Tom Hutton, thutton@lausd.k12.ca.us, 24 August 2001. Email message.

Image of Amazon rainforest at http://www.srl.caltech.edu/personnel/krubal/rainforest/Edit560s6/www/where.html from Rainforests http://www.srl.caltech.edu/personnel/krubal/rainforest/Edit560s6/, Tom Hutton, thutton@lausd.k12.ca.us, 24 August 2001. Email message.

Image of rainforest in Central Africa at http://www.srl.caltech.edu/personnel/krubal/rainforest/Edit560s6/www/where.html from Rainforests http://www.srl.caltech.edu/personnel/krubal/rainforest/Edit560s6/, Tom Hutton, thutton@lausd.k12.ca.us, 24 August 2001. Email message.

Image of rainforest in Asia at http://www.srl.caltech.edu/personnel/krubal/rainforest/Edit560s6/www/where.html from Rainforests http://www.srl.caltech.edu/personnel/krubal/rainforest/Edit560s6/, Tom Hutton, thutton@lausd.k12.ca.us, 24 August 2001. Email message.

Image of rainforest in Australiasia at http://www.srl.caltech.edu/personnel/krubal/rainforest/Edit560s6/www/where.html from Rainforests http://www.srl.caltech.edu/personnel/krubal/rainforest/Edit560s6/, Tom Hutton, thutton@lausd.k12.ca.us, 24 August 2001. Email message.

Video of permafrost at http://www.canadianarchaeology.com/canadianarchaeology/cmcc/vidsound.htm from CMCC http://www.canadianarchaeology.com/canadianarchaeology/cmcc/pilons.htm#discovery, Jean-Luc Pilon, Jean-Luc.Pilon@civilisations.ca, 16 August 2001. Email message.

Image of tropical rainforest at http://www.fldsystems.com/ from Your Own Piece of Rainforest http://www.fldsystems.com/, Michael Davison, mbd@senet.com.au, 27 August 2001. Email message.

Image of tropical frog at http://pantransit.reptiles.org/images/sorted/photo/ from Reptiles http://pantransit.reptiles.org/, Smarasderagd, smarry@vex.net, 20 August 2001. Email message.

Image of lynx at http://pantransit.reptiles.org/images/1998-04-19/ from Reptiles http://pantransit.reptiles.org/, Smarasderagd, smarry@vex.net, 20 August 2001. Email message.

Image of maples at http://pantransit.reptiles.org/images/1998-04-19/ from Reptiles http://pantransit.reptiles.org/, Smarasderagd, smarry@vex.net, 20 August 2001. Email message.

Image of conifers at http://pantransit.reptiles.org/images/1998-04-19/ from Reptiles http://pantransit.reptiles.org/, Smarasderagd, smarry@vex.net, 20 August 2001. Email message.

Image of temperate rainforest at http://pantransit.reptiles.org/images/1998-04-19/ from Reptiles http://pantransit.reptiles.org/, Smarasderagd, smarry@vex.net, 20 August 2001. Email message.

Image of giraffe at http://pantransit.reptiles.org/images/1998-05-13/ from Reptiles http://pantransit.reptiles.org/, Smarasderagd, smarry@vex.net, 20 August 2001. Email message.

Image of elephants at http://pantransit.reptiles.org/images/1998-05-13/ from Reptiles http://pantransit.reptiles.org/, Smarasderagd, smarry@vex.net, 20 August 2001. Email message.

Image of cheetahs at http://pantransit.reptiles.org/images/nsorted/photo/animal/ from Reptiles http://pantransit.reptiles.org/, Smarasderagd, smarry@vex.net, 20 August 2001. Email message.

Image of ermine at http://pantransit.reptiles.org/images/nsorted/photo/animal/ from Reptiles http://pantransit.reptiles.org/, Smarasderagd, smarry@vex.net, 20 August 2001. Email message.

Image of camouflaged moth at http://jrscience.wcp.muohio.edu/html/TropEcoCostaRicaImage.html from Tropical Systems of Costa Rica, http://jrscience.wcp.muohio.edu/html/index.html, Dr. R. Hays Cummins, haysc@muohio.edu. 28 August 2001. Email message.

Image of fer-de-lance snake at http://jrscience.wcp.muohio.edu/html/TropEcoCostaRicaImage.html from Tropical Systems of Costa Rica, http://jrscience.wcp.muohio.edu/html/index.html, Dr. R. Hays Cummins, haysc@muohio.edu. 28 August 2001. Email message.

Image of sloth at http://jrscience.wcp.muohio.edu/html/TropEcoCostaRicaImage.html from Tropical Systems of Costa Rica, http://jrscience.wcp.muohio.edu/html/index.html, Dr. R. Hays Cummins, haysc@muohio.edu. 28 August 2001. Email message.

Image of spider monkey at http://jrscience.wcp.muohio.edu/html/TropEcoCostaRicaImage.html from Tropical Systems of Costa Rica, http://jrscience.wcp.muohio.edu/html/index.html, Dr. R. Hays Cummins, haysc@muohio.edu. 28 August 2001. Email message.

Image of hummingbird at http://jrscience.wcp.muohio.edu/html/TropEcoCostaRicaImage.html from Tropical Systems of Costa Rica, http://jrscience.wcp.muohio.edu/html/index.html, Dr. R. Hays Cummins, haysc@muohio.edu. 28 August 2001. Email message.

Image of jaguar at http://jrscience.wcp.muohio.edu/html/TropEcoCostaRicaImage.html from Tropical Systems of Costa Rica, http://jrscience.wcp.muohio.edu/html/index.html, Dr. R. Hays Cummins, haysc@muohio.edu. 28 August 2001. Email message.

Image of cercropia trees at http://jrscience.wcp.muohio.edu/html/TropEcoCostaRicaImage.html from Tropical Systems of Costa Rica, http://jrscience.wcp.muohio.edu/html/index.html, Dr. R. Hays Cummins, haysc@muohio.edu. 28 August 2001. Email message.

Image of epiphytes at http://jrscience.wcp.muohio.edu/html/TropEcoCostaRicaImage.html from Tropical Systems of Costa Rica, http://jrscience.wcp.muohio.edu/html/index.html, Dr. R. Hays Cummins, haysc@muohio.edu. 28 August 2001. Email message.

Image of lianas at http://jrscience.wcp.muohio.edu/html/TropEcoCostaRicaImage.html from Tropical Systems of Costa Rica, http://jrscience.wcp.muohio.edu/html/index.html, Dr. R. Hays Cummins, haysc@muohio.edu. 28 August 2001. Email message.

Video of rainforest at http://www.srl.caltech.edu/personnel/krubal/rainforest/Edit560s6/www/movies.html from Learning About Rainforest http://www.srl.caltech.edu/personnel/krubal/rainforest/serve_home.html, Tom Hutton, thutton@lausd.k12.ca.us. 24 August 2001. Email message.

Video of mammals of rainforest at http://www.srl.caltech.edu/personnel/krubal/rainforest/Edit560s6/www/movies.html from Learning About Rainforest http://www.srl.caltech.edu/personnel/krubal/rainforest/serve_home.html, Tom Hutton, thutton@lausd.k12.ca.us. 24 August 2001. Email message.

Video of plants of the rainforest at http://www.srl.caltech.edu/personnel/krubal/rainforest/Edit560s6/www/movies.html from Learning About Rainforest http://www.srl.caltech.edu/personnel/krubal/rainforest/serve_home.html, Tom Hutton, thutton@lausd.k12.ca.us. 24 August 2001. Email message.

Video of flowers of the rainforest at http://www.srl.caltech.edu/personnel/krubal/rainforest/Edit560s6/www/movies.html from Learning About Rainforest http://www.srl.caltech.edu/personnel/krubal/rainforest/serve_home.html, Tom Hutton, thutton@lausd.k12.ca.us. 24 August 2001. Email message.

Image of grysbok at http://fernkloof.com/species.mv?116 from Fernkloof Nature Reserve http://fernkloof.com/, Herman Steyn, herman@fernkloof.com, 31 August 2001. Email message.

Image of grysbok at http://fernkloof.com/species.mv?116 from Fernkloof Nature Reserve http://fernkloof.com/, Herman Steyn, herman@fernkloof.com, 31 August 2001. Email message.

Image of chamiso-redshank chaparral at http://elib.cs.berkeley.edu/cgi/img_query?enlarge=6121+1611+1409+0017 from CalPhotos http://elib.cs.berkeley.edu/, Marc Hoshovsky, Department of Fish and Game, mhoshovs@maphost.dfg.ca.gov. 30 August 2001. License agreement on site.

Image of mixed chaparral at http://elib.cs.berkeley.edu/cgi/img_query?where-genre=Landscape&rel-plant_comm=like&where-plant_comm=Mixed+Chaparral from CalPhotos http://elib.cs.berkeley.edu/, Marc Hoshovsky, Department of Fish and Game, mhoshovs@maphost.dfg.ca.gov. 30 August 2001. License agreement on site.

Image of montane chaparral at http://elib.cs.berkeley.edu/cgi/img_query?enlarge=6121+1611+1409+0017 from CalPhotos http://elib.cs.berkeley.edu/, Marc Hoshovsky, Department of Fish and Game, mhoshovs@maphost.dfg.ca.gov. 30 August 2001. License agreement on site.

Image of sagebrush at http://elib.cs.berkeley.edu/cgi/img_query?enlarge=8253+3202+4138+0054 from CalPhotos http://elib.cs.berkeley.edu/, J. E.(Jed) and Bonnie McClellan, California Academy of Sciences, cburroughs@CalAcademy.org. 30 August 2001. License agreement on site.

Image of rosemary at http://elib.cs.berkeley.edu/cgi/img_query?enlarge=6105+1651+0932+00881 from CalPhotos http://elib.cs.berkeley.edu/, Brother Alfred Brousseau, St. Mary's College. 30 August 2001. License agreement on site.

Image of heather at http://elib.cs.berkeley.edu/cgi/img_query?enlarge=8253+3202+4146+0053 from CalPhotos http://elib.cs.berkeley.edu/, Gladys Lucille Smith, California Academy of Sciences. 30 August 2001. License agreement on site.

Image of chaparral biome at http://elib.cs.berkeley.edu/cgi/img_query?enlarge=0000+0000+1000+0240 from CalPhotos http://elib.cs.berkeley.edu/, Dr. Oren D. Pollak. 30 August 2001. License agreement on site.

Image of chamise at http://elib.cs.berkeley.edu/cgi/img_query?enlarge=8266+3261+2627+0021 from CalPhotos http://elib.cs.berkeley.edu/, William R. Hewlett, California Academy of Sciences. 30 August 2001. License agreement on site.

Image of lily at http://elib.cs.berkeley.edu/cgi/img_query?enlarge=5208+1611+0247+0014 from CalPhotos http://elib.cs.berkeley.edu/, Brother Alfred Brousseau, St. Mary's College. 30 August 2001. License agreement on site.

Image of chaparral at http://elib.cs.berkeley.edu/cgi/img_query?enlarge=6121+1611+1409+0093 from CalPhotos http://elib.cs.berkeley.edu/, Marc Hoshovsky, Department of Fish and Game, mhoshovs@maphost.dfg.ca.gov. 30 August 2001. License agreement on site.

Image of quail at http://elib.cs.berkeley.edu/cgi/img_query?enlarge=8235+3181+2555+0024 from CalPhotos http://elib.cs.berkeley.edu/, Dr. Lloyd Glenn Ingles, California Academy of Sciences. 30 August 2001. License agreement on site.

Image of mountain lion at http://elib.cs.berkeley.edu/cgi/img_query?enlarge=8235+3181+2555+0059 from CalPhotos http://elib.cs.berkeley.edu/, Gerald and Buff Corsi, California Academy of Sciences. 30 August 2001. License agreement on site.

Image of golden eagle at http://elib.cs.berkeley.edu/cgi/img_query?enlarge=8235+3181+2497+0055 from CalPhotos http://elib.cs.berkeley.edu/, Dr. Lloyd Glenn Ingles, California Academy of Sciences. 30 August 2001. License agreement on site.

Image of coyote at http://elib.cs.berkeley.edu/cgi/img_query?enlarge=8235+3181+2559+0097 from CalPhotos http://elib.cs.berkeley.edu/, Dr. Lloyd Glenn Ingles, California Academy of Sciences. 30 August 2001. License agreement on site.

Image of mountain lion at http://elib.cs.berkeley.edu/cgi/img_query?enlarge=0024+3291+2008+0056 from CalPhotos http://elib.cs.berkeley.edu/, Gerald and Buff Corsi, California Academy of Sciences. 31 August 2001. License agreement on site.

Image of rattlesnake at http://elib.cs.berkeley.edu/cgi/img_query?enlarge=0000+0000+0401+0059 from CalPhotos http://elib.cs.berkeley.edu/, John White. 31 August 2001. License agreement on site.

Image of chaparral at http://elib.cs.berkeley.edu/cgi/img_query?enlarge=6121+1611+1409+0018 from CalPhotos http://elib.cs.berkeley.edu/, Marc Hoshovsky, Department of Fish and Game, mhoshovs@maphost.dfg.ca.gov. 31 August 2001. License agreement on site.

Image of chaparral at http://elib.cs.berkeley.edu/cgi/img_query?enlarge=6121+1611+1703+0025 from CalPhotos http://elib.cs.berkeley.edu/, Marc Hoshovsky, Department of Fish and Game, mhoshovs@maphost.dfg.ca.gov. 31 August 2001. License agreement on site.

Image of horned sand viper at http://elib.cs.berkeley.edu/cgi/img_query?enlarge=0091+3183+0918+0015 from CalPhotos http://elib.cs.berkeley.edu/, John H. Tashjian. 3 September 2001. License agreement on site.

Image of death valley at http://elib.cs.berkeley.edu/cgi/img_query?enlarge=6259+3022+3485+0031 from CalPhotos http://elib.cs.berkeley.edu/, Brother Alfred Brousseau, St. Mary's College. 1 September 2001. License agreement on site.

Image of great basin at http://elib.cs.berkeley.edu/cgi/img_query?enlarge=9121+3261+2920+0031 from CalPhotos http://elib.cs.berkeley.edu/, Mona Bourell, California Academy of Sciences. 1 September 2001. License agreement on site.

Image of sahara desert at http://elib.cs.berkeley.edu/cgi/img_query?enlarge=9121+3261+2920+0079 from CalPhotos http://elib.cs.berkeley.edu/, Frances Elizabeth Hanan, California Academy of Sciences. 1 September 2001. License agreement on site.

Image of canyon at http://elib.cs.berkeley.edu/cgi/img_query?enlarge=8120+3181+4954+0030 from CalPhotos http://elib.cs.berkeley.edu/, Charles Webber, California Academy of Sciences, 1 September 2001. License agreement on site.

Image of saguaro cactus at http://elib.cs.berkeley.edu/cgi/img_query?enlarge=0024+3291+2015+0044 from CalPhotos http://elib.cs.berkeley.edu/, Jules Strauss, California Academy of Sciences, 1 September 2001. License agreement on site.

Image of organ pipe cactus at http://elib.cs.berkeley.edu/cgi/img_query?enlarge=0024+3291+2015+0048 from CalPhotos http://elib.cs.berkeley.edu/, Gerald and Buff Corsi, California Academy of Sciences, 1 September 2001. License agreement on site.

Image of tarantula at http://elib.cs.berkeley.edu/cgi/img_query?enlarge=0091+3183+0987+0041 from CalPhotos http://elib.cs.berkeley.edu/, Gerald and Buff Corsi, California Academy of Sciences, 3 September 2001. License agreement on site.

Image of joshua tree at http://elib.cs.berkeley.edu/cgi/img_query?enlarge=8076+3101+3987+0016 from CalPhotos http://elib.cs.berkeley.edu/, Charles Webber, California Academy of Sciences, 1 September 2001. License agreement on site.

Image of creosote plant at http://elib.cs.berkeley.edu/cgi/img_query?enlarge=8253+3202+3490+0034 from CalPhotos http://elib.cs.berkeley.edu/, Gerald and Buff Corsi, California Academy of Sciences, 1 September 2001. License agreement on site.

Image of african elephant at http://elib.cs.berkeley.edu/cgi/img_query?enlarge=0091+3183+0985+0049 from CalPhotos http://elib.cs.berkeley.edu/, Lorraine Elrod, California Academy of Sciences, 1 September 2001. License agreement on site.

Image of gemsbok at http://elib.cs.berkeley.edu/cgi/img_query?enlarge=9092+3191+3550+0076 from CalPhotos http://elib.cs.berkeley.edu/, Dr. Lloyd Glenn Ingles, California Academy of Sciences, 1 September 2001. License agreement on site.

Image of glying squirrel at http://elib.cs.berkeley.edu/cgi/img_query?enlarge=0091+3183+0989+0103 from CalPhotos http://elib.cs.berkeley.edu/, Dr. Lloyd Glenn Ingles, California Academy of Sciences, 1 September 2001. License agreement on site.

Image of gila monster at http://elib.cs.berkeley.edu/cgi/img_query?enlarge=8235+3181+2553+0128 from CalPhotos http://elib.cs.berkeley.edu/, Gerald and Buff Corsi, California Academy of Sciences, 1 September 2001. License agreement on site.

Image of fennec fox at http://elib.cs.berkeley.edu/cgi/img_query?enlarge=0091+3183+0917+0046 from CalPhotos http://elib.cs.berkeley.edu/, H. Vannoy Davis, California Academy of Sciences, 1 September 2001. License agreement on site.

Image of kangaroo rat at http://elib.cs.berkeley.edu/cgi/img_query?enlarge=8253+3202+3490+0052 from CalPhotos http://elib.cs.berkeley.edu/, Dr. Lloyd Glenn Ingles, California Academy of Sciences, 1 September 2001. License agreement on site.

Image of desert tortoise at http://elib.cs.berkeley.edu/cgi/img_query?enlarge=8235+3181+2555+0078 from CalPhotos http://elib.cs.berkeley.edu/, Dr. Lloyd Glenn Ingles, California Academy of Sciences, 1 September 2001. License agreement on site.

Image of desert scorpion at http://elib.cs.berkeley.edu/cgi/img_query?enlarge=9092+3191+3539+0127 from CalPhotos http://elib.cs.berkeley.edu/, Marguerite Gregory, California Academy of Sciences, 1 September 2001. License agreement on site.

Image of trap-door spider at http://elib.cs.berkeley.edu/cgi/img_query?enlarge=0091+3183+0918+0053 from CalPhotos http://elib.cs.berkeley.edu/, Jules Strauss, California Academy of Sciences, 1 September 2001. License agreement on site.

Image of namib desert at http://elib.cs.berkeley.edu/cgi/img_query?enlarge=9121+3261+2920+0052 from CalPhotos http://elib.cs.berkeley.edu/, Frances Elizabeth Hanan, California Academy of Sciences, 1 September 2001. License agreement on site.

Image of moss at http://elib.cs.berkeley.edu/cgi/img_query?enlarge=6205+3041+0703+0035 from CalPhotos http://elib.cs.berkeley.edu/, Brother Alfred Brousseau, St. Mary's College, 1 September 2001. License agreement on site.

Image of knobcone pine with fruits at http://elib.cs.berkeley.edu/cgi/img_query?enlarge=7335+3182+4411+0060 from CalPhotos http://elib.cs.berkeley.edu/, Brother Alfred Brousseau, St. Mary's College, 1 September 2001. License agreement on site.

Image of knobcone pine with fruites at http://elib.cs.berkeley.edu/cgi/img_query?enlarge=7335+3182+4411+0064 from CalPhotos http://elib.cs.berkeley.edu/, Brother Alfred Brousseau, St. Mary's College, 1 September 2001. License agreement on site.

Image of velvet ash tree at http://elib.cs.berkeley.edu/cgi/img_query?enlarge=7335+3182+4656+0039 from CalPhotos http://elib.cs.berkeley.edu/, Brother Alfred Brousseau, St. Mary's College, 1 September 2001. License agreement on site.

Image of raccoon at http://elib.cs.berkeley.edu/cgi/img_query?enlarge=0072+3301+1162+0114 from CalPhotos http://elib.cs.berkeley.edu/, Robert Potts, California Academy of Sciences, 2 September 2001. License agreement on site.

Image of black bear at http://elib.cs.berkeley.edu/cgi/img_query?enlarge=8030+3192+4155+0026 from CalPhotos http://elib.cs.berkeley.edu/, Gerald and Buff Corsi, California Academy of Sciences, 2 September 2001. License agreement on site.

Image of black bear at http://elib.cs.berkeley.edu/cgi/img_query?enlarge=0091+3183+0987+0109 from CalPhotos http://elib.cs.berkeley.edu/, Albert P. Bekker, California Academy of Sciences, 2 September 2001. License agreement on site.

Image of marmot at http://elib.cs.berkeley.edu/cgi/img_query?enlarge=0091+3183+0986+0027 from CalPhotos http://elib.cs.berkeley.edu/, Lorraine Elrod, California Academy of Sciences, 2 September 2001. License agreement on site.

Image of hog at http://elib.cs.berkeley.edu/cgi/img_query?enlarge=0091+3183+0935+0011 from CalPhotos http://elib.cs.berkeley.edu/, Dr. Robert Thomas and Margaret Orr, California Academy of Sciences, 2 September 2001. License agreement on site.

Image of hog at http://elib.cs.berkeley.edu/cgi/img_query?enlarge=0072+3301+1162+0106 from CalPhotos http://elib.cs.berkeley.edu/, Robert Potts, California Academy of Sciences, 2 September 2001. License agreement on site.

Image of great horned owl at http://elib.cs.berkeley.edu/cgi/img_query?enlarge=0091+3183+0920+0066 from CalPhotos http://elib.cs.berkeley.edu/, Dr. Lloyd Glenn Ingles, California Academy of Sciences, 2 September 2001. License agreement on site.

Image of white pasque flower at http://dlp.cs.berkeley.edu/cgi/img_query?enlarge=5161+1631+2673+0024 from CalPhotos http://elib.cs.berkeley.edu/, Brother Alfred Brousseau, California Academy of Sciences, 2 September 2001. License agreement on site.

Image of boxelder at http://dlp.cs.berkeley.edu/cgi/img_query?enlarge=7335+3182+4414+0061 from CalPhotos http://elib.cs.berkeley.edu/, Brother Alfred Brousseau, California Academy of Sciences, 2 September 2001. License agreement on site.

Image of spiderwort at http://dlp.cs.berkeley.edu/cgi/img_query?enlarge=9189+3301+3549+0050 from CalPhotos http://elib.cs.berkeley.edu/, Robert Potts, California Academy of Sciences, 2 September 2001. License agreement on site.

Image of grasshopper at http://dlp.cs.berkeley.edu/cgi/img_query?enlarge=0091+3183+0935+0037 from CalPhotos http://elib.cs.berkeley.edu/, Dr. Lloyd Glenn Ingles, California Academy of Sciences, 2 September 2001. License agreement on site.

Image of scarab beetle at http://dlp.cs.berkeley.edu/cgi/img_query?enlarge=8076+3101+0666+0077 from CalPhotos http://elib.cs.berkeley.edu/, Charles Webber, California Academy of Sciences, 1 September 2001. License agreement on site.

Image of bisons at http://elib.cs.berkeley.edu/cgi/img_query?enlarge=0024+3291+2013+0077 from CalPhotos http://elib.cs.berkeley.edu/, Gerald and Buff Corsi, California Academy of Sciences, 2 September 2001. License agreement on site.

Image of pronghorn antelope at http://elib.cs.berkeley.edu/cgi/img_query?enlarge=8235+3181+2555+0048 from CalPhotos http://elib.cs.berkeley.edu/, Gerald and Buff Corsi, California Academy of Sciences, 2 September 2001. License agreement on site.

Image of acacia at http://elib.cs.berkeley.edu/cgi/img_query?enlarge=0175+3301+3807+0030 from CalPhotos http://elib.cs.berkeley.edu/, staff CDFA, California Department of Food and Agriculture, Integrated Pest Control Branch, 2 September 2001. License agreement on site.

Image of baobab tree at http://elib.cs.berkeley.edu/cgi/img_query?enlarge=0024+3291+2008+0084 from CalPhotos http://elib.cs.berkeley.edu/, Gerald and Buff Corsi, California Academy of Sciences, 2 September 2001. License agreement on site.

Image of termite mound at http://elib.cs.berkeley.edu/cgi/img_query?enlarge=9092+3191+3548+0126 from CalPhotos http://elib.cs.berkeley.edu/, Dr. Robert Thomas and Margaret Orr, California Academy of Sciences, 2 September 2001. License agreement on site.

Image of wildebeests at http://elib.cs.berkeley.edu/cgi/img_query?enlarge=0091+3183+0935+0004 from CalPhotos http://elib.cs.berkeley.edu/, Dr. Robert Thomas and Margaret Orr, California Academy of Sciences, 2 September 2001. License agreement on site.

Image of cheetah at http://elib.cs.berkeley.edu/cgi/img_query?enlarge=9092+3191+3550+0103 from CalPhotos http://elib.cs.berkeley.edu/, Gerald and Buff Corsi, California Academy of Sciences, 2 September 2001. License agreement on site.

Image of aardvark at http://elib.cs.berkeley.edu/cgi/img_query?enlarge=0091+3183+0918+0073 from CalPhotos http://elib.cs.berkeley.edu/, Dr. Lloyd Glenn Ingles, California Academy of Sciences, 2 September 2001. License agreement on site.

Image of map of desert at http://www.livingdesert.org/worlddes.htm from The Living Desert http://www.livingdesert.org/, Ms. Pat Porter, Public Relations Manager, LivingDesertPR@aol.com, 24 August 2001. Email message.

Image of plants blooming at http://www.livingdesert.org/plantsbloom.html from The Living Desert http://www.livingdesert.org/, Ms. Pat Porter, Public Relations Manager, LivingDesertPR@aol.com, 24 August 2001. Email message.

Image of octillo plant at http://www.livingdesert.org/plantsbloom.html from The Living Desert http://www.livingdesert.org/, Ms. Pat Porter, Public Relations Manager, LivingDesertPR@aol.com, 24 August 2001. Email message.

Image of bat eared fox at http://www.livingdesert.org/sgbatearedfox.html from The Living Desert http://www.livingdesert.org/, Ms. Pat Porter, Public Relations Manager, LivingDesertPR@aol.com, 24 August 2001. Email message.

Image of pupfish at http://www.livingdesert.org/pupfish.htm from The Living Desert http://www.livingdesert.org/, Ms. Pat Porter, Public Relations Manager, LivingDesertPR@aol.com, 24 August 2001. Email message.

Video of sand dune formatino at http://www.geog.ouc.bc.ca/physgeog/contents/11r.html from Fundermentals of Physical Geography http://www.geog.ouc.bc.ca/physgeog/contents/table.html, Michael Pidwirny, mpidwirny@okanagan.bc.ca, 1 September 2001. Email message.

Image of butte at http://geology.wr.usgs.gov/docs/usgsnps/deva/galmisc.html from USGS Geological Survey http://geology.wr.usgs.gov/, Melanie Moreno, mmoreno@usgs.gov, 1 September 2001. Email message.

Image of sand dune at http://geology.wr.usgs.gov/docs/usgsnps/deva/galdune.html from USGS Geological Survey http://geology.wr.usgs.gov/, Melanie Moreno, mmoreno@usgs.gov, 1 September 2001. Email message.

Image of carving on rocks at http://geology.wr.usgs.gov/docs/usgsnps/deva/galmisc.html from USGS Geological Survey http://geology.wr.usgs.gov/, Melanie Moreno, mmoreno@usgs.gov, 1 September 2001. Email message.

Image of addax at http://cervid.forsci.ualberta.ca/library/taxonomy/addax_nasomaculatus.htm from DeerNet http://www.deer.rr.ualberta.ca/, Robert Hudson, robert.hudson@ualberta.ca, 1 September 2001. Email message.

Image of mixed deciduous forest at http://enterprise.nwi.fws.gov/digitiz.htm from US Fish and Wildlife Services http://www.fws.gov, 1 September 2001. License agreement on site.

Image of mixed evergreen forest at http://enterprise.nwi.fws.gov/digitiz.htm from US Fish and Wildlife Services http://www.fws.gov, 1 September 2001. License agreement on site.

Image of mixed prairie dog at http://images.fws.gov/page1.cfm from US Fish and Wildlife Services http://www.fws.gov, 1 September 2001. License agreement on site.

Image of larch pine tree at http://chem.engr.utc.edu/jim/jpgs1/11-10-Tuesday.htm from Jim Henry Online http://chem.engr.utc.edu/jim/, Jim Henry, jim-henry@utc.edu, 1 September 2001. Email message.

Image of white-spruce at http://www.rook.org/earl/bwca/nature/trees/piceaglauca.html from BCWA http://www.rook.org/earl/bwca/index.html, Earl Rook, rookswan@pioneerplanet.infi.net, 13 August 2001. Email message.

Movie of savanna grassland from "The Living Textbook" Life Sciences LaserDisks:Mechanisms of Stability & Change. Optical Data Corporation. Warren, New Jersey
Movie of deciduous forest from "The Living Textbook" Life Sciences LaserDisks:Mechanisms of Stability & Change. Optical Data Corporation. Warren, New Jersey
Movie of prairie grassland from "The Living Textbook" Life Sciences LaserDisks:Mechanisms of Stability & Change. Optical Data Corporation. Warren, New Jersey
Image of soil of grassland at http://www.edc.com/~jkimball/BiologyPages/S/Soil.html from Biomes http://www.edc.com/~jkimball/BiologyPages/B/Biomes.html, John W. Kimball, jkimball@envoy.mcb.harvard.edu, 2 September 2001. Email message.

Image of prairie grassland at http://www.edc.com/~jkimball/BiologyPages/B/Biomes.html#Grasslands from Biomes http://www.edc.com/~jkimball/BiologyPages/B/Biomes.html, John W. Kimball, jkimball@envoy.mcb.harvard.edu, 2 September 2001. Email message.

Image of yardang at http://www.geocities.com/CollegePark/Square/2077/mayard2.html from YAZD http://www.geocities.com/CollegePark/Square/2077/home2.html, Daryoush Mehrshahi, daryoushm.geo@yahoo.com, 2 September 2001. Email message.

Image of alluvial fan at http://www.geocities.com/CollegePark/Square/2077/taftfan2.html from YAZD http://www.geocities.com/CollegePark/Square/2077/home2.html, Daryoush Mehrshahi, daryoushm.geo@yahoo.com, 2 September 2001. Email message.