scholarly journals Foraging behaviour of the crab Cancer pagurus feeding on the gastropods Nucella lapillus and Littorina littorea: comparisons with optimal foraging theory

1985 ◽  
Vol 27 ◽  
pp. 143-154 ◽  
Author(s):  
P Lawton ◽  
RN Hughes
Keyword(s):  
Optimal Foraging ◽  
Foraging Behaviour ◽  
Optimal Foraging Theory ◽  
Foraging Theory ◽  
Littorina Littorea ◽  
Nucella Lapillus ◽  
Cancer Pagurus

scholarly journals Foraging behaviour of Brazilian riverine and coastal fishers: How much is explained by the optimal foraging theory?

2011 ◽  
Vol 9 (3) ◽  
pp. 236 ◽  
Author(s):  
PriscilaF.M. Lopes ◽  
Natalia Hanazaki ◽  
RenatoA.M. Silvano ◽  
Mariana Clauzet ◽  
Milena Ramires ◽  
...  
Keyword(s):  
Optimal Foraging ◽  
Foraging Behaviour ◽  
Optimal Foraging Theory ◽  
Foraging Theory

scholarly journals Among-individual differences in foraging modulate resource exploitation under perceived predation risk

Oecologia ◽  
2020 ◽  
Vol 194 (4) ◽  
pp. 621-634
Author(s):  
Jana A. Eccard ◽  
Thilo Liesenjohann ◽  
Melanie Dammhahn
Keyword(s):  
Individual Differences ◽  
Optimal Foraging ◽  
Perceived Risk ◽  
Foraging Behaviour ◽  
Ground Cover ◽  
Optimal Foraging Theory ◽  
Foraging Theory ◽  
Trophic Levels ◽  
Risk Level ◽  
Resource Exploitation

AbstractForaging is risky and involves balancing the benefits of resource acquisition with costs of predation. Optimal foraging theory predicts where, when and how long to forage in a given spatiotemporal distribution of risks and resources. However, significant variation in foraging behaviour and resource exploitation remain unexplained. Using single foragers in artificial landscapes of perceived risks and resources with diminishing returns, we aimed to test whether foraging behaviour and resource exploitation are adjusted to risk level, vary with risk during different components of foraging, and (co)vary among individuals. We quantified foraging behaviour and resource exploitation for 21 common voles (Microtus arvalis). By manipulating ground cover, we created simple landscapes of two food patches varying in perceived risk during feeding in a patch and/or while travelling between patches. Foraging of individuals was variable and adjusted to risk level and type. High risk during feeding reduced feeding duration and food consumption more strongly than risk while travelling. Risk during travelling modified the risk effects of feeding for changes between patches and resulting evenness of resource exploitation. Across risk conditions individuals differed consistently in when and how long they exploited resources and exposed themselves to risk. These among-individual differences in foraging behaviour were associated with consistent patterns of resource exploitation. Thus, different strategies in foraging-under-risk ultimately lead to unequal payoffs and might affect lower trophic levels in food webs. Inter-individual differences in foraging behaviour, i.e. foraging personalities, are an integral part of foraging behaviour and need to be fully integrated into optimal foraging theory.

Optimal foraging: theory and experiment

Nature ◽  
1977 ◽  
Vol 268 (5621) ◽  
pp. 583-584 ◽  
Author(s):  
John Krebs
Keyword(s):  
Optimal Foraging ◽  
Optimal Foraging Theory ◽  
Foraging Theory ◽  
Theory And Experiment

Testing optimal foraging theory models on benthic divers

2016 ◽  
Vol 112 ◽  
pp. 127-138 ◽  
Author(s):  
Dahlia Foo ◽  
Jayson M. Semmens ◽  
John P.Y. Arnould ◽  
Nicole Dorville ◽  
Andrew J. Hoskins ◽  
...  
Keyword(s):  
Optimal Foraging ◽  
Optimal Foraging Theory ◽  
Foraging Theory
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