GTI Reader - Biodiversity

Definition

2011-10-14T15:18:36Z

What is biodiversity?

Biodiversity, shorthand for biological diversity, can be defined as the variety and variability of life at all its hierarchical levels, from genetic diversity within the same species to diversity between species and through arrays of higher taxonomic levels. Biodiversity also includes the variety of ecosystems, which comprise both the communities of organisms within particular habitats and the physical conditions under which they live.

Biodiversity thus has three complementary levels:

Genetic diversity that deals with the variety of genetic information between individuals within and between populations.
Taxonomic diversity (often referd to as species diversity or organismal diversity) that deals with the variation between species and higher taxonomic categories
Ecological diversity that encompasses the broad differences between ecosystem types, and the diversity of habitats and ecological processes occurring within each ecosystem type.

Biodiversity clearly is a multidimensional concept that can only be fully protected if understood over space and time.

Why study biodiversity?

The reason for studying biodiversity is two-fold:

Man has (and always has had) an inherent desire to understand the past, present and future of the diversity of life that surrounds him.
Man has an extrinsic drive to understand how biodiversity functions and evolves because his ever-growing impact on nature clearly adversely impacts biodiversity and ecosystem functioning. This in turn leads to dramatic lowering of ecosystem services, that is, the free profits ecosystems provide to humans

Understanding how biodiversity functions on the local, regional and global level is thus at the same time scientifically daunting and crucial to maintain human well-being.

How to study biodiversity?

Biodiversity is to be studied both on a temporal and spatial scale; both at the level of genetic diversity, the level of taxonomic diversity and the level of ecosystem diversit

Understanding of all these different, intermingled components of biodiversity demands quantifications: measurements. However the inherent complexity of biodiversity makes that no single adequate biodiversity measurement exists. For now it suffices to note that measurements generally have two components: (i) number and variety of entities; (ii) relative abundance or evenness of distribution of the entities.

On the spatial scale three levels are generally considered:

Alfa diversity: the diversity within local assemblage, community or habitat
Beta diversity: rate and extent of turnover of alfa biodiversity (for instance changes between communities, changes along a gradient,…)
Gamma diversity: diversity within a geographical area = sum alfa + beta.

On the temporal scale, biodiversity needs to be understood through geological and ecological windows.

Course

Biodiversity, the Tapestry of Life

La Biodiversité, la Fresque de la Vie

References

Allen, A.P. & Gillooly, J.F. 2006. Assessing latitudinal gradients in speciation rates and biodiversity at the global scale. Ecology Letters 9: 947-954.
Arbogast, B.S. & Kenagy, G.J. 2001. Comparative phylogeography as an integrative approach to historical biogeography. Journal of Biogeography 28: 819-825.
Beaumont, N.J. et al. 2007. Identification, definition and quantification of goods and services provided by marine biodiversity: Implications for the ecosystem approach. Marine Pollution Bulletin 54: 253-265.
Bolger, T. 2001. The functional value of species biodiversity - a review. Biology and Environment: Proceedings of the Royal Irish Academy 101B: 199-224.
Boyd, J. & Banzhaf, S. 2007. What are ecosystem services? The need for standardized environmental accounting units. Ecological Economics 63: 616-626.
Brauer, J. 2005. Establishing Indicators for Biodiversity. Science 308: 791.
Briggs, J.C. 2000. Centrifugal speciation and centres of origin. Journal of Biogeography 27: 1183-1188.
Canfield, D.E., Poulton, S.W. & Narbonne, G.M. 2007. Late-Neoproterozoic Deep-Ocean Oxygenation and the Rise of animal Life. Science 315: 92-94.
Carroll, R.L. 2001. Origin of Novelties. Encyclopedia of Life Sciences 8.
Costanza, R., Fisher, B., Mulder, K., Liu, S. & Christopher, T. 2007. Biodiversity and ecosystem services: A multi-scale empirical study of the relationships between species richness and net primary production. Ecological Economics 61: 478-491.
Crist, T.O., Veech, J.A., Gering, J.C. & Summerville, K.S. 2003. Partitioning Species Diversity across Landscapes and Regions: A Hierarchical Analysis of a, b and g Diversity. The American Naturalist 162: 734-743.
del Monte-Luna, P. 2007. Marine extinctions revisited. FISH and FISHERIES 8: 107-122.
Donovan, S.K. 2001. History of Paleontology. Encyclopedia of Life Sciences 6.
Dyer, L.A.et al. 2007. Host specificity of Lepidoptera in tropical and temperate forests. Nature 448: 696-700.
Erwin, D.H. 1998. The end and the beginning: recoveries from mass extinctions. TRENDS in Ecology and Evolution 13: 344-349.
Erwin, D.H. 2005. Seeds of diversity. Science 308: 1752-1753.
Field, R. 2002. Latitudinal Diversity Gradients. Encyclopedia of Life Sciences 8.
Fisher, B. & Cjristopher, T. 2007. Poverty and biodiversity: Measuring the overlap of human poverty and the biodiversity hotspots. Ecological Economics 62: 93-101.
Fukami, H. et al. 2004. Conventional taxonomy obscures deep divergence between Pacific and Atlantic corals. Nature 427: 832-835.
Gaston, K.J. 2000. Global Patterns in Biodiversity. Nature 405: 220-227.
Gaston, K.J. 2003. The how and why of biodiversity. Nature 421: 900-901.
Gende, S.M. & Quinn, T.P. 2006. The fish and the forest. Scientific American, August 2006: 66-71.
Godfray, H.C.J. & Lawton, J.H. 2001. Scale and species numbers. TRENDS in Ecology and Evolution 16: 400-404.
Green, R.E., Cornell, S.J., Scharlemann, J.P.W. & Balmford, A. 2005. Farming and the Fate of Wild Nature. Science 307: 550-555.
Haag, A. 2005. Whale Fall. Nature 433: 566-567.
Hewitt, G. 2000. The genetic legacy of the Quaternary ice ages. Nature 405: 907-913.
Holt, A. 2006. Biodiversity definitions vary with the discipline. Nature 444: 146. Hopkin, M. 2007. Mark of respect. Nature 448: 402-403.
Imhoff, M.L. et al. 2004. Global patterns in human consumption of net primary production. Nature 429: 870-873.
Jablonski, D., Roy, K., Valentine, J.W. 2006. Out of the Tropics : Evolutionary Dynamics of the Latitudinal Diversity Gradient. Science 314: 102-105.
Jensen, M.N. 2003. Consensus on Ecological Impacts Remains Elusive. Science 299: 38.
Johnson, P.T.J., Lund, P.J., Hartson, R.B., Yoshino, T.P. 2010. Community diversity reduces Shistosoma mansoni transmission, host pathology and human infection risk. Proceedings of the Royal Society B: 276: 1657-1663.
Keesing, F. et al. 2010. Impacts of biodiversity on the emergence and transmission of infectuous diseases. Nature 468: 647-652.
Kerr, R.A. 2005. Gasping for air in Permian hard times. Science 308: 337.
Kerr, R.A. 2005. The Story of O2. Science 308: 1730-1732.
Kirchner, J.W. & Weil, A. 2005. Fossils make waves. Nature 434: 147-148.
Lamoreux et al. 2006. Global tests of biodiversity concordance and the importance of endemism. Nature 440: 212214.
Lövei, G. 2005. Hitching a lift. Nature 435: 1163.
Mace, G.M. 2005. An index of intactness. Nature, 434: 32-33.
Marshall, C.R. 2006. Fossil record Reveals Tropics as Cradle and Museum. Science 314: 66-67.
McNeely, J. 2001. Invasive species: a costly catastrophe for native biodiversity. Land Use and Water Resources Research 1: 1-10.
Miller, A.I. 2002. Diversity of Life Through Time. Encyclopedia of Life Sciences 7.
Mooers, A.O. 2007. The diversity of biodiversity. Nature 445: 717-718.
Moorbath, S. 2005. Dating earliest life. Nature 434: 155. Moore, P.D. 2006. Unkind cuts for incense. Nature 444: 829.
Morin, P.J. & Fox, J.W. 2004. Diversity in the deep blue sea. Nature 429: 813-814.
Novotny, V. et al 2007. Low beta diversity of herbivorous insects in tropical forests. Nature 448: 692-697.
Olson, D.M. et al. 2001. Terrestrial ecoregions of the world: a new map of life on Earth. BioScience 51: 933-938.
Palmer, M. et al., M. 2004. Ecology for a Crowded Planet. Science 304: 1251-1252.
Parmesan, C. 2007. Ecological and Evolutionary Responses to Recent Climate Change. Annual Review of Ecology, Evolution, and Systematics 37: 637-669.
Pearson, P.N. & Harcourt-Brown, K.G. 2001. Speciation and the Fossil Record. Encyclopedia of Life Sciences 5.
Pimm, S.L. & Brown, J.H. 2004. Domains of Diversity. Science 304: 831-833.
Pimm, S.L. & Raven, P. 2000. Extinction by numbers. Science 403: 843-844.
Pimm, S. et al. 2006. Human impacts on the rates of recent, present and future bird extinctions. PNAS 103: 10941-10946.
Pimm, S.L., Russell G.J., Gittleman, J.L. & Brooks, Th.M. 1995. The Future of Biodiversity. Science 269: 347-350.
Pörtner, H. O. & Knust, R. 2007. Climate Change affects Marine Fishes Through the Oxygen Limitation of Thermal Tolerance. Science 315: 95-97.
Purvis, A. & Hector, A. 2000. Getting the Measure of Biodiversity. Nature 405: 212-219.
Raup, D.M. 1994. The role of extinction in evolution. Proceedings of the National Academy of Sciences of the United States of America 91: 6758-6763.
Raven, P.H. & Wilson, E.O. 1992. A Fifty -Year Plan for Biodiversity Surveys. Science 258: 1099-1100.
Rhymer, J.M. 2006. Extinction by hybridization and introgression in anatine ducks. Acta Zoologica Sinica 52: 583-585.
Rohde, R.A. & Muller, R.A. 2005. Cycles in fossil diversity. Nature 434: 208-210.
Schopf, J.W. 2000. Solution to Darwin's dilemma: Discovery of the missing Precambrian record of life. PNAS 97: 6947-6953.
Semmens, B.X., Buhle, E.R., Salomon, A.K. & Pattengill-Semmens, C.V. 2004. A hotspot of non-native marine fishes: evidence for the aquarium trade as an invasion pathway. Marine Ecology Progress Series 266: 239-244.
Shirley, S.M. & Kark, S. 2006. Amassing Efforts against Alien Invasive Species in Europe. PLOS Biology 4: 1311-1313.
Sibert, J., Hampton, J., Kleiber, P. & Maunder, M. 2006. Biomass, Size, and Trophic Status of Top Predators in the Pacific Ocean. Science 314: 1773-1776.
Simberloff, D., Parker, I.M. & Windle, P.N. 2005. Introduced species policy, management, and future research needs. Front Ecol Environ 3: 12-20.
Stork, N.E. 2007. World of insects. Nature 448: 657-658.
Suttle, K.B., Thomsen, M.A. & Power, M.E. 2007. Species Interactions Reverse Grassland Responses to Changing Climate. Science 315: 640-642.
Thuiller, W. 2007. Climate change and the ecologist. Nature 448: 550-553.
Wang, T. & Overgaard, J. 2007. The Heartbreak of Adapting to Global Warming. Science 315: 49-50.
Ward, J.V. & Tockner, K. 2001. Biodiversity: towards a unifying theme for river ecology. Freshwater Biology 46: 807-819.
Weir, J.T. & Schluter, D. 2007. The Latitudinal Gradient in Recent Speciation and Extinction Rates of Birds and Mammals. Science 315: 1574-1576.
Wheeler, Q.D. 1995. Systematics, the scientific basis for inventories of biodiversity. Biodiversity and Conservation 4: 476-489.
Wiens, J.J., Parra-Olea, G., Carcia-Paris, M. & Wake, D.B. 2007. Phylogenetic history underlies elevational biodiversity patterns in tropical salamanders. Proceedings of the Royal Society B 274: 919-928.
Williamson, M., Gaston, K.J. & Lonsdale, W.M. 2001. The species-area relationship does not have an asymptote. Journal of Biogeography 28: 827-830.
Worm, B. & Duffy, E. 2003. Biodiversity, productivity and stability in real food webs. TRENDS in Ecology and Evolution 18: 628-632.
Worm, B. et al. 2006. Impacts of Biodiversity Loss on Ocean Ecosystem Services. Science 314: 787-790.

More information is available in the Learn more folder.

Conservation

2011-10-14T15:19:01Z

This subodule still in preparation. Please come back later.

References

Adams, W.M. 2006. The Future of Sustainability: Re-thinking Environment and Development in the Twenty-first Century. Report of the IUCN Renowned Thinkers Meeting, 29-31 January 2006, 18 pp.
Alpert, P. 2006. The advantages and disadvantages of being introduced. Biological Invasions 8: 1523-1534.
Altieri, M.A. 1999. The ecological role of biodiversity in agroecosystems. Agriculture, Ecosystems and Environment 74: 19-31.
Araujo, M.B. & Rahbek, C. 2006. How Does Climate Change Affect Biodiversity. Science 313: 1396-1397.
Balanya J., Oller J.M., Huey R., Gilchrist G.W. & Serra L. 2006. Global Genetic Change Tracks Global Climate Warming in Drosophila subobscura. Science 313: 1773-1775.
Balmford, A., Moore, J.L., Brooks, T., Burgess, N., Hansen, L. A., Williams, P. & Rahbek, C. 2001. Conservation Conflict Across Africa. Science 291: 2616-2619.
Baskin, Y. 1994. There's a New Wildlife Policy In Kenya: Use It or Lose It. Science 265: 733-734.
Baum, J.K. & Vincent, A.C.J.2005. Magnitude and inferred impacts of the seahorse trade in Latin America. Environmental Conservation 32: 305-319.
Beaumont, N.J. et al. 2007. Identification, definition and quantification of goods and services provided by marine biodiversity: Implications for the ecosystem approach. Marine Pollution Bulletin 54: 253-265.
Bradley, R.S., Vuille, M., Diaz, H.F. & Vergara, W. 2006. Threats to Water Supplies in the Tropical Andes. Science 312: 1755-1756.
Brashares, J.S. et al. 2004. Bushmeat hunting, wildlife declines, and fish supply in West Africa. Science 306: 1180-1183.
Brooks, T.M. et al. 2006. Global Biodiversity Conservation Priorities. Science 313:58-61.
Bruner, A. G. et al. 2001. Effectiveness of Parks in Protecting Tropical Biodiversity. Science 291: 125-128.
Callaway, R.M. & Maron, J.L. 2006. What have exotic plant invasions taught us over the past 20 years? TRENDS in Ecology and Evolution 21: 370-374.
Cincotta, R.P., Wisnewski, J. & Engelman, R. 2000. Human population in the biodiversity hotspots. Nature 404: 990-993.
Dalton, R. 2005. Is this any way to save a species? Nature 436: 14-16.
Dauwers, A. 2007. Uganda hosts banana trial. Nature 447: 1042.
Diaz, S., Fargione, J., Chapin, F.S. & Tilman, D. 2006. Biodiversity Loss Threatens Human Well-Being. PLOS Biology 4: 1300-1305.
Dulvy, N.K. & Reynolds, J.D. 2009. Skates on thin ice. Nature 462: 417.
Ennos, R.A., French, G.C. & Hollingsworth P.M. 2005. Conserving taxonomic complexity. TRENDS in Ecology and Evolution 20: 164-168.
Farrier, D., Whelan, R. & Mooney, C. 2007. Threatened species listing as a trigger for conservation action. Environmental Science & Policy 10: 219-229.
Fisher, B. & Cjristopher, T. 2007. Poverty and biodiversity: Measuring the overlap of human poverty and the biodiversity hotspots. Ecological Economics 62: 93-101.
Forest, F. et al. 2007. Preserving the evolutionary potential of floras in biodiversity hotspots. Nature 445: 757-760.
Gibbs, W.W. 2001. On the termination of species. Scientific American 40-49.
Golding, J.S. 2004. The use of specimen information influences the outcomes of Red List assessments: the case of southern African plant specimens. Biodiversity and Conservation 13: 773-780.
Hayden, T. 2007. Ground force. Nature 445: 481-483.
Hutcheson, J., Walsh, P. & Given, D. 1999. Potential value of indicator species for conservation and management of New Zealand terrestrial communities. Department of Conservation 1-90.
Iglésias, S.P., Toulhoat, L., Sellos, D.Y. 2009. Taxonomic confusion and market mislabelling of threatened skates: importnat consequences for their conservation status. Aquatic Conservation: Marine and Freshwater Ecosystems (article online in advance of print).
Keilman, N. 2003. The threat of small households. Nature 421: 489-490.
Kim, K.C. & Byrne, LB. 2006. Biodiversity loss and the taxonomic bottleneck: emerging biodiversity science. Ecological Research 21: 794-810.
Lane, N. 2007. Reading the book of death. Nature 448: 122-125.
Laurance, W.F. 2007. Have we overstated the tropical biodiversity crisis? TRENDS in Ecology and Evolution 22: 65-70.
Lindsey, P.A., Alexander, R., Frank, L.G. & Romanach, S.S. 2006. Potential of trophy hunting to create incentives for wildlife conservation in Africa where alternative wildlife-based land uses may not be viable. Animal Conservation 9: 283-291.
Liu, J., Daily, G.C., Ehrlich, P.R. & Luck, G.W. 2003. Effects of household dynamics on resource consumption and biodiversity. Nature 421: 530-533.
Mace, G.M. 2004. The role of taxonomy in species conservation. Philosophical Transactions of the Royal Society, London. B, 359(1444): 711-719.
Mack, R.N. et al. 2000. Biotic Invasions: Causes, Epidemology, Global Consequences and Control. Issues in Ecology, Number 5: 20 pp.
Majka, C.G. & Bondrup-Nielsen. 2006. Parataxonomy: a test case using beetles. Animal Biodiversity and Conservation 29(2): 149-156.
Marris, E. 2007. Making Room. Nature 448: 860-863.
Marris, E. 2009. Putting a price on nature. Nature 462: 270-271.
Miller, G.H. et al. 2005. Ecosystem collapse in Pleistocene Australia and a human role in megafaunal extinction. Science 309: 287-290.
Milot, E., Weimerskirch, H., Duchesne P. & Bernatchez, L. 2007. Surviving with low genetic diversity: the case of albatrosses. Proceedings of the Royal Society B 274: 779-787.
Moehlman, P.D. 2005. Endangered Wild Equids. Scientific American 86-93.
Mora, C. et al. 2006. Coral reefs and the Global Network of Marine protected Areas. Science 312: 1750-1751.
Myers, N. et al. J. 2000. Biodiversity hotspots for conservation priorities. Nature 403: 853-858.
Novacek, M.J. & Cleland, E.E. 2001. The current biodiversity extinction event: Scenarios for mitigation and recovery. Proceedings of the National Academy of Sciences of the United States of America 98: 5466-5470.
Ostrom, E. et al. 1999. Revisiting the Commons: Local Lessons, Global Challenges. Science 278-282.
Penn, D.J. 2003. The evolutionary roots of our environmental problems: toward a Darwinian ecology. The Quarterly Review of Biology 78: 275-301.
Pennisi, E. 2007. U.S. Weighs Protection for Polar Bears. Science 315: 25.
Perry, A.L., Low, P.J., Ellis, J.R. & Reynolds, J.D. 2005. Climate Change and Distribution Shifts in Marine Fishes. Science 308: 1912-1915.
Pimm, S. et al. 2006. Human impacts on the rates of recent, present and future bird extinctions. PNAS 103: 10941-10946.
Rahbek, C. 1993. Captive breeding - a useful tool in the preservation of biodiversity? Biodiversity and Conservation 2: 426-437.
Ricketts, T.H. 2001. Conservation Biology and Biodiversity. Encyclopedia of Life Sciences 7.
Ricketts, T.H. et al, 2005. Pinpointing and preventing imminent extinctions. PNAS 102: 18497-18501.
Roberts, C.M. et al., 2002. Marine Biodiversity Hotspots and Conservation Priorities for Tropical Reefs. Science 295: 1280-1284.
Rodrigues, A.S. 2006. Are Global Conservation Efforts Successful ? Science 313: 1051-1052.
Rodrigues, A.S.L. & Gaston, K.J. 2002. Maximising phylogenetic diversity in the selection of networks of conservation areas. Biological Conservation 105: 103-111.

Ruddiman, W.F. 2005. How did humans first alter global climate? Scientific American 46-53.
Russ, G.R., Alcala, A.C. & Maypa, A.P. 2003. Spillover from marine reserves: the case of Naso vlamingii at Apo Island, The Philippines. Marine Ecology Progress Series 264: 15-20.
Russo, G. 2009. Biodiversity's bright spot. Nature 462: 266-269
Scholes, R.J. & Biggs, R. 2005. A biodiversity intactness index. Nature 434: 45-49.
Skewgar, E., Boersma, P.D., Harris, G. & Caille, G. 2007. Anchovy Fishery Threat to Patagonian Ecosystem. Science 315: 45.
Smith, E.A. & Wishnie, M. 2000. Conservation and subsistence in Small-Scale Societies. Annual Review of Anthropology 29: 493-524.
Smith, T.B. et al. C. 2001. Biodiversity hotspots and beyond: the need for preserving environmental transitions. TRENDS in Ecology and Evolution 16: 431.
Sohlman, E. 2004. A bid to save the Galapagos of the Indian Ocean. Science 303: 1753.
Stockwell, C.A., Hendry, A.P. & Kinnison, M.T. 2003. Contemporary evolution meets conservation biology. TRENDS in Ecology and Evolution 18: 94-101.
Strayer, D.L., Eviner, V.T., Jeschke, J.M. & Pace, M.L. 2006. Understanding the long-term effects of species invasions. TRENDS in Ecology and Evolution 21: 645-651.
Walter, H.S. 2004. The mismeasure of islands: implications for biogeographical theory and the conservation of nature. Journal of Biogeography 31: 177-197.
Wasser, S.K. et al. 2007. Using DNA to track the origin of the largest ivory seizure since the 1989 trade ban. Proceedings of the National Academy of Sciences of the United States of America 104: 4228-4233.
Wilson, K.A. et al. 2007. Conserving Biodiversity Efficiently: What to Do, Where, and When. PLOS Biology 5: 1-12.

More information is available in the learn more folder below.

Measurement

2011-10-14T15:19:19Z

This subodule still in preparation. Please come back later.

References

Purvis, A. & Hector, A. 2000. Getting the Measure of Biodiversity. Nature 405: 212-219.