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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Online Access: | http://hdl.handle.net/10508/16230 http://hdl.handle.net/10261/317420 https://doi.org/10.1371/journal.pone.0273615 |
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ftcsic:oai:digital.csic.es:10261/317420 2024-02-11T10:06:08+01:00 It’s not all abundance: Detectability and accessibility of food also explain breeding investment in long-lived marine animals Real, Enric Oro, Daniel Bartolero, Albert Igual, José Manuel Sanz-Aguilar, Ana Hidalgo, Manuel Tacecchia, Giacomo Genovart, Meritxell Océan atlantique Atlantique Nord Atlantic Ocean Atlántico Norte Océano Atlántico ICES North Atlantic 2022-09-21 http://hdl.handle.net/10508/16230 http://hdl.handle.net/10261/317420 https://doi.org/10.1371/journal.pone.0273615 en eng Centro Oceanográfico de Baleares AM https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0273615 PLoS ONE, 17. 2022: e0273615-e0273615 1932-6203 http://hdl.handle.net/10508/16230 http://hdl.handle.net/10261/317420 https://doi.org/10.1371/journal.pone.0273615 50517 open Medio Marino Centro Oceanográfico de Baleares seabirds Western Mediterranean climate influence fish demography breeding ecology abundance research article 2022 ftcsic https://doi.org/10.1371/journal.pone.0273615 2024-01-16T11:44:44Z 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. SI Article in Journal/Newspaper North Atlantic North Atlantic oscillation Digital.CSIC (Spanish National Research Council) PLOS ONE 17 9 e0273615 |
institution |
Open Polar |
collection |
Digital.CSIC (Spanish National Research Council) |
op_collection_id |
ftcsic |
language |
English |
topic |
Medio Marino Centro Oceanográfico de Baleares seabirds Western Mediterranean climate influence fish demography breeding ecology abundance |
spellingShingle |
Medio Marino Centro Oceanográfico de Baleares seabirds Western Mediterranean climate influence fish demography breeding ecology abundance Real, Enric Oro, Daniel Bartolero, Albert Igual, José Manuel Sanz-Aguilar, Ana Hidalgo, Manuel Tacecchia, Giacomo It’s not all abundance: Detectability and accessibility of food also explain breeding investment in long-lived marine animals |
topic_facet |
Medio Marino Centro Oceanográfico de Baleares seabirds Western Mediterranean climate influence fish demography breeding ecology abundance |
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. SI |
author2 |
Genovart, Meritxell |
format |
Article in Journal/Newspaper |
author |
Real, Enric Oro, Daniel Bartolero, Albert Igual, José Manuel Sanz-Aguilar, Ana Hidalgo, Manuel Tacecchia, Giacomo |
author_facet |
Real, Enric Oro, Daniel Bartolero, Albert Igual, José Manuel Sanz-Aguilar, Ana Hidalgo, Manuel Tacecchia, Giacomo |
author_sort |
Real, Enric |
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 |
publishDate |
2022 |
url |
http://hdl.handle.net/10508/16230 http://hdl.handle.net/10261/317420 https://doi.org/10.1371/journal.pone.0273615 |
op_coverage |
Océan atlantique Atlantique Nord Atlantic Ocean Atlántico Norte Océano Atlántico ICES North Atlantic |
genre |
North Atlantic North Atlantic oscillation |
genre_facet |
North Atlantic North Atlantic oscillation |
op_relation |
Centro Oceanográfico de Baleares AM https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0273615 PLoS ONE, 17. 2022: e0273615-e0273615 1932-6203 http://hdl.handle.net/10508/16230 http://hdl.handle.net/10261/317420 https://doi.org/10.1371/journal.pone.0273615 50517 |
op_rights |
open |
op_doi |
https://doi.org/10.1371/journal.pone.0273615 |
container_title |
PLOS ONE |
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17 |
container_issue |
9 |
container_start_page |
e0273615 |
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1790603654278938624 |