Document Detail

Insect development under predation risk variable temperature, and variable food quality.
MedLine Citation:
PMID:  17658915     Owner:  NLM     Status:  MEDLINE    
We model the development of an individual insect, a grasshopper, through its nymphal period as a function of a trade-off between prey vigilance and nutrient intake in a changing environment. Both temperature and food quality may be variable. We scale up to the population level using natural mortality and a predation risk that is mass, vigilance, and temperature dependent. Simulations reveal the sensitivity of both survivorship and development time to risk and nutrient intake, including food quality and temperature variations. The model quantifies the crucial role of temperature in trophic interactions and development, which is an important issue in assessing the effects of global climate change on complex environmental interactions.
J David Logan; William Wolesensky; Anthony Joern
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, Non-P.H.S.    
Journal Detail:
Title:  Mathematical biosciences and engineering : MBE     Volume:  4     ISSN:  1547-1063     ISO Abbreviation:  Math Biosci Eng     Publication Date:  2007 Jan 
Date Detail:
Created Date:  2007-07-30     Completed Date:  2007-08-20     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101197794     Medline TA:  Math Biosci Eng     Country:  United States    
Other Details:
Languages:  eng     Pagination:  47-65     Citation Subset:  IM    
Department of Mathematics, University of Nebraska, Lincoln, NE 68588-0130 USA.
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MeSH Terms
Body Temperature
Computer Simulation
Enzymes / chemistry
Insects / physiology*
Models, Statistical
Models, Theoretical
Predatory Behavior*
Sensitivity and Specificity
Stochastic Processes
Systems Biology
Reg. No./Substance:

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