It's not all abundance: Detectability and accessibility of food also explain breeding investment in long-lived marine animals.
Large-scale climatic indices are extensively used as predictors of ecological processes, but the mechanisms and the spatio-temporal scales at which climatic indices influence these processes are often speculative. Here, we use long-term data to evaluate how a measure of individual breeding investmen...
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ftdoajarticles:oai:doaj.org/article:fca809b3079449e6ae0e948565d1c6bd 2023-05-15T17:29:21+02:00 It's not all abundance: Detectability and accessibility of food also explain breeding investment in long-lived marine animals. Enric Real Daniel Orol Albert Bertolero José Manuel Igual Ana Sanz-Aguilar Meritxell Genovart Manuel Hidalgo Giacomo Tavecchia 2022-01-01T00:00:00Z https://doi.org/10.1371/journal.pone.0273615 https://doaj.org/article/fca809b3079449e6ae0e948565d1c6bd EN eng Public Library of Science (PLoS) https://doi.org/10.1371/journal.pone.0273615 https://doaj.org/toc/1932-6203 1932-6203 doi:10.1371/journal.pone.0273615 https://doaj.org/article/fca809b3079449e6ae0e948565d1c6bd PLoS ONE, Vol 17, Iss 9, p e0273615 (2022) Medicine R Science Q article 2022 ftdoajarticles https://doi.org/10.1371/journal.pone.0273615 2022-12-30T21:05:50Z Large-scale climatic indices are extensively used as predictors of ecological processes, but the mechanisms and the spatio-temporal scales at which climatic indices influence these processes are often speculative. Here, we use long-term data to evaluate how a measure of individual breeding investment (the egg volume) of three long-lived and long-distance-migrating seabirds is influenced by i) a large-scale climatic index (the North Atlantic Oscillation) and ii) local-scale variables (food abundance, foraging conditions, and competition). Winter values of the North Atlantic Oscillation did not correlate with local-scale variables measured in spring, but surprisingly, both had a high predictive power of the temporal variability of the egg volume in the three study species, even though they have different life-history strategies. The importance of the winter North Atlantic Oscillation suggests carry-over effects of winter conditions on subsequent breeding investment. Interestingly, the most important local-scale variables measured in spring were associated with food detectability (foraging conditions) and the factors influencing its accessibility (foraging conditions and competition by density-dependence). Large-scale climatic indices may work better as predictors of foraging conditions when organisms perform long distance migrations, while local-scale variables are more appropriate when foraging areas are more restricted (e.g. during the breeding season). Contrary to what is commonly assumed, food abundance does not directly translate into food intake and its detectability and accessibility should be considered in the study of food-related ecological processes. Article in Journal/Newspaper North Atlantic North Atlantic oscillation Directory of Open Access Journals: DOAJ Articles PLOS ONE 17 9 e0273615 |
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Medicine R Science Q |
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Medicine R Science Q Enric Real Daniel Orol Albert Bertolero José Manuel Igual Ana Sanz-Aguilar Meritxell Genovart Manuel Hidalgo Giacomo Tavecchia It's not all abundance: Detectability and accessibility of food also explain breeding investment in long-lived marine animals. |
topic_facet |
Medicine R Science Q |
description |
Large-scale climatic indices are extensively used as predictors of ecological processes, but the mechanisms and the spatio-temporal scales at which climatic indices influence these processes are often speculative. Here, we use long-term data to evaluate how a measure of individual breeding investment (the egg volume) of three long-lived and long-distance-migrating seabirds is influenced by i) a large-scale climatic index (the North Atlantic Oscillation) and ii) local-scale variables (food abundance, foraging conditions, and competition). Winter values of the North Atlantic Oscillation did not correlate with local-scale variables measured in spring, but surprisingly, both had a high predictive power of the temporal variability of the egg volume in the three study species, even though they have different life-history strategies. The importance of the winter North Atlantic Oscillation suggests carry-over effects of winter conditions on subsequent breeding investment. Interestingly, the most important local-scale variables measured in spring were associated with food detectability (foraging conditions) and the factors influencing its accessibility (foraging conditions and competition by density-dependence). Large-scale climatic indices may work better as predictors of foraging conditions when organisms perform long distance migrations, while local-scale variables are more appropriate when foraging areas are more restricted (e.g. during the breeding season). Contrary to what is commonly assumed, food abundance does not directly translate into food intake and its detectability and accessibility should be considered in the study of food-related ecological processes. |
format |
Article in Journal/Newspaper |
author |
Enric Real Daniel Orol Albert Bertolero José Manuel Igual Ana Sanz-Aguilar Meritxell Genovart Manuel Hidalgo Giacomo Tavecchia |
author_facet |
Enric Real Daniel Orol Albert Bertolero José Manuel Igual Ana Sanz-Aguilar Meritxell Genovart Manuel Hidalgo Giacomo Tavecchia |
author_sort |
Enric Real |
title |
It's not all abundance: Detectability and accessibility of food also explain breeding investment in long-lived marine animals. |
title_short |
It's not all abundance: Detectability and accessibility of food also explain breeding investment in long-lived marine animals. |
title_full |
It's not all abundance: Detectability and accessibility of food also explain breeding investment in long-lived marine animals. |
title_fullStr |
It's not all abundance: Detectability and accessibility of food also explain breeding investment in long-lived marine animals. |
title_full_unstemmed |
It's not all abundance: Detectability and accessibility of food also explain breeding investment in long-lived marine animals. |
title_sort |
it's not all abundance: detectability and accessibility of food also explain breeding investment in long-lived marine animals. |
publisher |
Public Library of Science (PLoS) |
publishDate |
2022 |
url |
https://doi.org/10.1371/journal.pone.0273615 https://doaj.org/article/fca809b3079449e6ae0e948565d1c6bd |
genre |
North Atlantic North Atlantic oscillation |
genre_facet |
North Atlantic North Atlantic oscillation |
op_source |
PLoS ONE, Vol 17, Iss 9, p e0273615 (2022) |
op_relation |
https://doi.org/10.1371/journal.pone.0273615 https://doaj.org/toc/1932-6203 1932-6203 doi:10.1371/journal.pone.0273615 https://doaj.org/article/fca809b3079449e6ae0e948565d1c6bd |
op_doi |
https://doi.org/10.1371/journal.pone.0273615 |
container_title |
PLOS ONE |
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17 |
container_issue |
9 |
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e0273615 |
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