Data from: Environmental heterogeneity decreases reproductive success via effects on foraging behaviour
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 resource patches is key to foraging success. However, the potential fitness costs and benefits of foraging...
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ftdryad:oai:v1.datadryad.org:10255/dryad.216880 2023-05-15T18:07:11+02:00 Data from: Environmental heterogeneity decreases reproductive success via effects on foraging behaviour Trevail, Alice Green, Jonathan Sharples, Jonathan Polton, Jeff Miller, Peter Daunt, Francis Owen, Ellie Bolton, Mark Colhoun, Kendrew Newton, Stephen Robertson, Gail Patrick, Samantha UK and Ireland 2019-05-20T13:33:57Z http://hdl.handle.net/10255/dryad.216880 https://doi.org/10.5061/dryad.0898ss6 unknown doi:10.5061/dryad.0898ss6/1 doi:10.5061/dryad.0898ss6/2 doi:10.5061/dryad.0898ss6/3 doi:10.5061/dryad.0898ss6/4 doi:10.5061/dryad.0898ss6/5 doi:10.5061/dryad.0898ss6/6 doi:10.1098/rspb.2019.0795 doi:10.5061/dryad.0898ss6 Trevail A, Green J, Sharples J, Polton J, Miller P, Daunt F, Owen E, Bolton M, Colhoun K, Newton S, Robertson G, Patrick S (2019) Environmental heterogeneity decreases reproductive success via effects on foraging behaviour. Proceedings of the Royal Society B. http://hdl.handle.net/10255/dryad.216880 Competition Seabird Hidden Markov Model Heterogeneity Gradient Optimal foraging theory Resource availability Article 2019 ftdryad https://doi.org/10.5061/dryad.0898ss6 https://doi.org/10.5061/dryad.0898ss6/1 https://doi.org/10.5061/dryad.0898ss6/2 https://doi.org/10.5061/dryad.0898ss6/3 https://doi.org/10.5061/dryad.0898ss6/4 https://doi.org/10.5061/dryad.0898ss6/5 https 2020-01-01T16:28:47Z 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 resource patches is key to foraging success. However, the potential fitness costs and benefits of foraging in a heterogeneous environment are difficult to measure empirically. Heterogeneity may provide higher quality foraging opportunities, or alternatively could increase the cost of resource acquisition because of reduced patch density or increased competition. Here, we study the influence of physical environmental heterogeneity on behaviour and reproductive success of black-legged kittiwakes, Rissa tridactyla. From GPS tracking data at 15 colonies throughout their British and Irish breeding range, we found that environments that were physically more heterogeneous were associated with longer trip duration, more time spent actively foraging whilst away from the colony, increased overlap of foraging areas between individuals, and lower breeding success. These results suggest that in more heterogeneous environments, there is greater competition between individuals for finite resources, which comes at a cost to reproduction. Resource hotspots are often considered to be beneficial, as individuals can learn to exploit them if sufficiently predictable. However, we demonstrate here that such fitness gains can be countered by greater competition in more heterogeneous environments. Article in Journal/Newspaper rissa tridactyla Dryad Digital Repository (Duke University) |
institution |
Open Polar |
collection |
Dryad Digital Repository (Duke University) |
op_collection_id |
ftdryad |
language |
unknown |
topic |
Competition Seabird Hidden Markov Model Heterogeneity Gradient Optimal foraging theory Resource availability |
spellingShingle |
Competition Seabird Hidden Markov Model Heterogeneity Gradient Optimal foraging theory Resource availability Trevail, Alice Green, Jonathan Sharples, Jonathan Polton, Jeff Miller, Peter Daunt, Francis Owen, Ellie Bolton, Mark Colhoun, Kendrew Newton, Stephen Robertson, Gail Patrick, Samantha Data from: Environmental heterogeneity decreases reproductive success via effects on foraging behaviour |
topic_facet |
Competition Seabird Hidden Markov Model Heterogeneity Gradient Optimal foraging theory Resource availability |
description |
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 resource patches is key to foraging success. However, the potential fitness costs and benefits of foraging in a heterogeneous environment are difficult to measure empirically. Heterogeneity may provide higher quality foraging opportunities, or alternatively could increase the cost of resource acquisition because of reduced patch density or increased competition. Here, we study the influence of physical environmental heterogeneity on behaviour and reproductive success of black-legged kittiwakes, Rissa tridactyla. From GPS tracking data at 15 colonies throughout their British and Irish breeding range, we found that environments that were physically more heterogeneous were associated with longer trip duration, more time spent actively foraging whilst away from the colony, increased overlap of foraging areas between individuals, and lower breeding success. These results suggest that in more heterogeneous environments, there is greater competition between individuals for finite resources, which comes at a cost to reproduction. Resource hotspots are often considered to be beneficial, as individuals can learn to exploit them if sufficiently predictable. However, we demonstrate here that such fitness gains can be countered by greater competition in more heterogeneous environments. |
format |
Article in Journal/Newspaper |
author |
Trevail, Alice Green, Jonathan Sharples, Jonathan Polton, Jeff Miller, Peter Daunt, Francis Owen, Ellie Bolton, Mark Colhoun, Kendrew Newton, Stephen Robertson, Gail Patrick, Samantha |
author_facet |
Trevail, Alice Green, Jonathan Sharples, Jonathan Polton, Jeff Miller, Peter Daunt, Francis Owen, Ellie Bolton, Mark Colhoun, Kendrew Newton, Stephen Robertson, Gail Patrick, Samantha |
author_sort |
Trevail, Alice |
title |
Data from: Environmental heterogeneity decreases reproductive success via effects on foraging behaviour |
title_short |
Data from: Environmental heterogeneity decreases reproductive success via effects on foraging behaviour |
title_full |
Data from: Environmental heterogeneity decreases reproductive success via effects on foraging behaviour |
title_fullStr |
Data from: Environmental heterogeneity decreases reproductive success via effects on foraging behaviour |
title_full_unstemmed |
Data from: Environmental heterogeneity decreases reproductive success via effects on foraging behaviour |
title_sort |
data from: environmental heterogeneity decreases reproductive success via effects on foraging behaviour |
publishDate |
2019 |
url |
http://hdl.handle.net/10255/dryad.216880 https://doi.org/10.5061/dryad.0898ss6 |
op_coverage |
UK and Ireland |
genre |
rissa tridactyla |
genre_facet |
rissa tridactyla |
op_relation |
doi:10.5061/dryad.0898ss6/1 doi:10.5061/dryad.0898ss6/2 doi:10.5061/dryad.0898ss6/3 doi:10.5061/dryad.0898ss6/4 doi:10.5061/dryad.0898ss6/5 doi:10.5061/dryad.0898ss6/6 doi:10.1098/rspb.2019.0795 doi:10.5061/dryad.0898ss6 Trevail A, Green J, Sharples J, Polton J, Miller P, Daunt F, Owen E, Bolton M, Colhoun K, Newton S, Robertson G, Patrick S (2019) Environmental heterogeneity decreases reproductive success via effects on foraging behaviour. Proceedings of the Royal Society B. http://hdl.handle.net/10255/dryad.216880 |
op_doi |
https://doi.org/10.5061/dryad.0898ss6 https://doi.org/10.5061/dryad.0898ss6/1 https://doi.org/10.5061/dryad.0898ss6/2 https://doi.org/10.5061/dryad.0898ss6/3 https://doi.org/10.5061/dryad.0898ss6/4 https://doi.org/10.5061/dryad.0898ss6/5 https |
_version_ |
1766179145417490432 |