Environmental heterogeneity decreases reproductive success via effects on foraging behaviour.
Alice M. Trevail,Jonathan A. Green,Jonathan Sharples,Jeff A. Polton,Peter I. Miller,Francis Daunt,Ellie Owen,Mark Bolton,Kendrew Colhoun,Stephen F. Newton,Gail Robertson,Samantha C. Patrick +11 more
TLDR
In this article, the optimal foraging theory predicts that an animal's ability to exploit the uneven distribution of resources available to foragers is determined by environmental heterogeneity, which is ubiquitous in nature.Abstract:
Environmental heterogeneity shapes the uneven distribution of resources available to foragers, and is ubiquitous in nature. Optimal foraging theory predicts that an animal's ability to exploit reso...read more
Citations
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From pup to predator; generalized hidden Markov models reveal rapid development of movement strategies in a naïve long‐lived vertebrate
Matt I. D. Carter,Matt I. D. Carter,Brett T. McClintock,Clare B. Embling,Kimberley A. Bennett,Dave Thompson,Debbie J. F. Russell +6 more
TL;DR: It is shown that sex‐specific behavioural strategies emerge before sexual size dimorphism in grey seals, and it is suggested that this phenomenon may occur in other long‐lived species.
Journal ArticleDOI
Assessing the effects of tidal stream marine renewable energy on seabirds: A conceptual framework.
Natalie Isaksson,Elizabeth A. Masden,Benjamin Williamson,Melissa M. Costagliola-Ray,James Slingsby,Jonathan D.R. Houghton,Jared Wilson +6 more
TL;DR: This review provides a conceptual framework for assessing the effects of tidal stream energy devices on seabirds, summarises current knowledge and highlights knowledge gaps, and recommendations are given for how best to pursue knowledge.
Journal ArticleDOI
Oceans of stimuli: an individual-based model to assess the role of olfactory cues and local enhancement in seabirds’ foraging behaviour
Rita Bastos,Beatriz Martins,João Alexandre Cabral,Filipe R. Ceia,Jaime A. Ramos,Vitor H. Paiva,António Luís,Mário Santos +7 more
TL;DR: An individual-based model is developed to explore the complementary role of different searching mechanisms for the optimal foraging behaviour of pelagic seabirds during 1-day foraging trips around breeding colonies, which supports the use of a combination of searching strategies by Cory's shearwaters and indicates a synergistic effect between the two strategies.
Journal ArticleDOI
Environmental heterogeneity promotes individual specialisation in habitat selection in a widely distributed seabird.
Alice M. Trevail,Alice M. Trevail,Jonathan A. Green,Mark Bolton,Francis Daunt,Stephanie M. Harris,Peter I. Miller,Stephen F. Newton,Ellie Owen,Jeff A. Polton,Gail Robertson,Jonathan Sharples,Samantha C. Patrick +12 more
TL;DR: In this paper, the authors used habitat selection functions to quantify individual specialisations while foraging by black-legged kittiwakes Rissa tridactyla, a marine top predator, at 15 colonies around the United Kingdom and Ireland, along a gradient of environmental heterogeneity.
Journal ArticleDOI
Clutch quality is related to embryonic development duration, hatchling body size and telomere length in the spined toad (Bufo spinosus)
TL;DR: The relationships between clutch hatching success and offspring quality in an amphibian species lacking post-oviposition parental care are investigated and a relationship between clutch quality and embryonic development duration and hatchling phenotype is found.
References
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Journal ArticleDOI
On Optimal Use of a Patchy Environment
TL;DR: A graphical method is discussed which allows a specification of the optimal diet of a predator in terms of the net amount of energy gained from a capture of prey as compared to the energy expended in searching for the prey.
Journal ArticleDOI
Some distance properties of latent root and vector methods used in multivariate analysis
TL;DR: In this paper, the authors derived necessary and sufficient conditions for a solution to exist in real Euclidean space for a multivariate multivariate sample of size n as points P1, P2,..., PI in a Euclidian space and discussed the interpretation of the distance A(Pi, Pj) between the ith and jth members of the sample.
Journal ArticleDOI
The package “adehabitat” for the R software: A tool for the analysis of space and habitat use by animals
TL;DR: The “adehabitat” package for the R software is presented, which offers basic GIS functions, methods to analyze radio-tracking data and habitat selection by wildlife, and interfaces with other R packages.
Journal ArticleDOI
Animal species diversity driven by habitat heterogeneity/diversity: the importance of keystone structures
Jörg Tews,Ulrich Brose,Volker Grimm,Katja Tielbörger,Matthias C. Wichmann,Monika Schwager,Florian Jeltsch +6 more
TL;DR: It is shown that ecological effects of habitat heterogeneity may vary considerably between species groups depending on whether structural attributes are perceived as heterogeneity or fragmentation, and possible effects may also vary relative to the structural variable measured.
Journal ArticleDOI
Multivariate dispersion as a measure of beta diversity.
TL;DR: For kelp holdfast assemblages from New Zealand, variation in species composition was greater in smaller holdfasts, while variation in relative abundances was great in larger holdasts, regardless of the measure used.
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