کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6372157 1319970 2013 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A stoichiometric producer-grazer model incorporating the effects of excess food-nutrient content on consumer dynamics
ترجمه فارسی عنوان
یک مدل تولید کننده استوکیومتریک شامل اثرات مواد مغذی اضافی مواد غذایی بر پویایی مصرف کننده است
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم کشاورزی و بیولوژیک علوم کشاورزی و بیولوژیک (عمومی)
چکیده انگلیسی


- It has been observed that animal growth is reduced by high nutrient content food.
- We present the first model that incorporates this phenomenon into consumer dynamics.
- Through analysis and simulations we investigate grazer growth dynamics.

There has been important progress in understanding ecological dynamics through the development of the theory of ecological stoichiometry. For example, modeling under this framework allows food quality to affect consumer dynamics. While the effects of nutrient deficiency on consumer growth are well understood, recent discoveries in ecological stoichiometry suggest that consumer dynamics are not only affected by insufficient food nutrient content (low phosphorus (P): carbon (C) ratio) but also by excess food nutrient content (high P:C). This phenomenon is known as the stoichiometric knife edge, in which animal growth is reduced not only by food with low P content but also by food with high P content, and needs to be incorporated into mathematical models. Here we present a Lotka-Volterra type model to investigate the growth response of Daphnia to algae of varying P:C ratios capturing the mechanism of the stoichiometric knife edge.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Mathematical Biosciences - Volume 244, Issue 2, August 2013, Pages 107-115
نویسندگان
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