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...
Main Authors: | , , , , , , , |
---|---|
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Public Library of Science (PLoS)
2022
|
Subjects: | |
Online Access: | https://doaj.org/article/32e6d5e3e2d14d73a402c4e561913678 |
id |
ftdoajarticles:oai:doaj.org/article:32e6d5e3e2d14d73a402c4e561913678 |
---|---|
record_format |
openpolar |
spelling |
ftdoajarticles:oai:doaj.org/article:32e6d5e3e2d14d73a402c4e561913678 2023-05-15T17:29:20+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://doaj.org/article/32e6d5e3e2d14d73a402c4e561913678 EN eng Public Library of Science (PLoS) https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9491606/?tool=EBI https://doaj.org/toc/1932-6203 1932-6203 https://doaj.org/article/32e6d5e3e2d14d73a402c4e561913678 PLoS ONE, Vol 17, Iss 9 (2022) Medicine R Science Q article 2022 ftdoajarticles 2022-12-30T21:51:15Z 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 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Medicine R Science Q |
spellingShingle |
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://doaj.org/article/32e6d5e3e2d14d73a402c4e561913678 |
genre |
North Atlantic North Atlantic oscillation |
genre_facet |
North Atlantic North Atlantic oscillation |
op_source |
PLoS ONE, Vol 17, Iss 9 (2022) |
op_relation |
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9491606/?tool=EBI https://doaj.org/toc/1932-6203 1932-6203 https://doaj.org/article/32e6d5e3e2d14d73a402c4e561913678 |
_version_ |
1766123226585366528 |