کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4378533 | 1617541 | 2007 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Adding realism to foraging arena predictions of trophic flow rates in Ecosim ecosystem models: Shared foraging arenas and bout feeding
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موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم کشاورزی و بیولوژیک
بوم شناسی، تکامل، رفتار و سامانه شناسی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Adding realism to foraging arena predictions of trophic flow rates in Ecosim ecosystem models: Shared foraging arenas and bout feeding Adding realism to foraging arena predictions of trophic flow rates in Ecosim ecosystem models: Shared foraging arenas and bout feeding](/preview/png/4378533.png)
چکیده انگلیسی
We update the Ecopath with Ecosim software for aquatic ecosystem modeling to allow users to represent intensification of inter-specific competition through shared use of space-time restricted foraging arenas, as well as predation occurring in periodic short feeding bouts rather than continuously over time. Our study indicates that assuming shared use of foraging arenas can have pathological impact on the ability of ecosystem models to predict maintenance of biological diversity in complex food webs, in cases where multiple predators have similar diet compositions but in fact avoid direct competition through fine-scale separation of feeding locations or times. We further find that the assumption of bout feeding leads to essentially the same predictions about how predation rates ought to vary with predator abundances as does the more unrealistic assumption of continuous feeding.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ecological Modelling - Volume 209, Issues 2â4, 16 December 2007, Pages 342-350
Journal: Ecological Modelling - Volume 209, Issues 2â4, 16 December 2007, Pages 342-350
نویسندگان
Carl Walters, Villy Christensen,