Understanding food‐web persistence from local to global scales

Ecology Letters - Tập 13 Số 2 - Trang 154-161 - 2010
Daniel B. Stouffer1, Jordi Bascompte1
1Integrative Ecology Group, Estación Biológica de Doñana-CSIC, c/ Américo Vespucio s/n, 41092 Sevilla, Spain

Tóm tắt

Ecology letters(2010) 13: 154–161AbstractUnderstanding food‐web persistence is an important long‐term objective of ecology because of its relevance in maintaining biodiversity. To date, many dynamic studies of food‐web behaviour—both empirical and theoretical—have focused on smaller sub‐webs, called trophic modules, because these modules are more tractable experimentally and analytically than whole food webs. The question remains to what degree studies of trophic modules are relevant to infer the persistence of entire food webs. Four trophic modules have received particular attention in the literature: tri‐trophic food chains, omnivory, exploitative competition, and apparent competition. Here, we integrate analysis of these modules’ dynamics in isolation with those of whole food webs to directly assess the appropriateness of scaling from modules to food webs. We find that there is not a direct, one‐to‐one, relationship between the relative persistence of modules in isolation and their effect on persistence of an entire food web. Nevertheless, we observe that those modules which are most commonly found in empirical food webs are those that confer the greatest community persistence. As a consequence, we demonstrate that there may be significant dynamic justifications for empirically‐observed food‐web structure.

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Tài liệu tham khảo

10.1890/0012-9658(2000)081[1286:COCPOA]2.0.CO;2

10.1111/j.1461-0248.2004.00613.x

10.1890/05-0101

10.1073/pnas.0501562102

10.1098/rstb.2008.0226

10.1038/41084

10.1890/0012-9658(2006)87[2411:CBRINF]2.0.CO;2

10.1111/j.1461-0248.2006.00978.x

10.1016/j.jtbi.2006.12.036

10.1007/978-3-642-83784-5

10.1890/0012-9658(2006)87[1915:HLTCAT]2.0.CO;2

10.1098/rspb.2003.2592

10.1111/j.2007.0030-1299.16261.x

10.1006/jtbi.1997.0562

10.2307/1940591

Holt R.D, 1997, Multitrophic Interactions in Terrestrial Ecosystems, 36th Symposium of the British Ecological Society, 333

10.1086/285705

10.1890/0012-9658(2001)082[2682:BCFOAC]2.0.CO;2

Johnson S., 2001, Emergence: The Connected Lives of Ants, Brains, Cities, and Software

10.1126/science.1079154

10.1073/pnas.0805870105

10.1016/S0304-3800(02)00351-4

May R.M., 1973, Stability and Complexity in Model Ecosystems

10.1098/rspb.1986.0054

10.1098/rspb.1997.0172

10.2307/1939558

10.1111/j.0030-1299.2006.13990.x

10.1126/science.298.5594.824

10.1038/nature02394

10.1016/j.ecocom.2008.02.001

10.1111/j.1461-0248.2005.00838.x

10.1086/282586

Pascual M., 2006, Ecological Networks: Linking Structure to Dynamics in Food Webs

Pimm S.L., 2002, Food Webs

10.1371/journal.pbio.0030343

Radhakrishnan K.&Hindmarsh A.C.(1993).Description and use of LSODE the Livermore Solver for Ordinary Differential Equations. Tech. Rep. UCRL‐ID‐113855 Lawrence Livermore National Laboratory.

Sivia D.S., 2006, Data Analysis: A Bayesian Tutorial, 10.1093/oso/9780198568315.001.0001

10.1214/06-BA127

10.1073/pnas.0603844103

10.1890/04-0957

10.1098/rspb.2007.0571

10.1890/05-0720

10.1016/j.jtbi.2005.06.006

10.1007/s12080-008-0013-5

10.1038/35004572

10.1111/j.1365-2656.2008.01362.x

10.1890/0012-9615(1997)067[0045:EATOPC]2.0.CO;2

10.1086/285380

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Ecology Letters

Tập 13 Số 2

154-161

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