How animals distribute themselves in space: variable energy landscapes
Abstract Background Foraging efficiency determines whether animals will be able to raise healthy broods, maintain their own condition, avoid predators and ultimately increase their fitness. Using accelerometers and GPS loggers, features of the habitat and the way animals deal with variable condition...
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ftdatacite:10.6084/m9.figshare.c.3819331 2023-05-15T18:03:52+02:00 How animals distribute themselves in space: variable energy landscapes Masello, Juan Kato, Akiko Sommerfeld, Julia Mattern, Thomas Quillfeldt, Petra 2017 https://dx.doi.org/10.6084/m9.figshare.c.3819331 https://figshare.com/collections/How_animals_distribute_themselves_in_space_variable_energy_landscapes/3819331 unknown Figshare https://dx.doi.org/10.1186/s12983-017-0219-8 CC BY 4.0 https://creativecommons.org/licenses/by/4.0 CC-BY Evolutionary Biology FOS Biological sciences 59999 Environmental Sciences not elsewhere classified FOS Earth and related environmental sciences 39999 Chemical Sciences not elsewhere classified FOS Chemical sciences Ecology Sociology FOS Sociology 69999 Biological Sciences not elsewhere classified Collection article 2017 ftdatacite https://doi.org/10.6084/m9.figshare.c.3819331 https://doi.org/10.1186/s12983-017-0219-8 2021-11-05T12:55:41Z Abstract Background Foraging efficiency determines whether animals will be able to raise healthy broods, maintain their own condition, avoid predators and ultimately increase their fitness. Using accelerometers and GPS loggers, features of the habitat and the way animals deal with variable conditions can be translated into energetic costs of movement, which, in turn, can be translated to energy landscapes.We investigated energy landscapes in Gentoo Penguins Pygoscelis papua from two colonies at New Island, Falkland/Malvinas Islands. Results In our study, the marine areas used by the penguins, parameters of dive depth and the proportion of pelagic and benthic dives varied both between years and colonies. As a consequence, the energy landscapes also varied between the years, and we discuss how this was related to differences in food availability, which were also reflected in differences in carbon and nitrogen stable isotope values and isotopic niche metrics. In the second year, the energy landscape was characterized by lower foraging costs per energy gain, and breeding success was also higher in this year. Additionally, an area around three South American Fur Seal Arctocephalus australis colonies was never used. Conclusions These results confirm that energy landscapes vary in time and that the seabirds forage in areas of the energy landscapes that result in minimized energetic costs. Thus, our results support the view of energy landscapes and fear of predation as mechanisms underlying animal foraging behaviour. Furthermore, we show that energy landscapes are useful in linking energy gain and variable energy costs of foraging to breeding success. Article in Journal/Newspaper Pygoscelis papua DataCite Metadata Store (German National Library of Science and Technology) |
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Open Polar |
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DataCite Metadata Store (German National Library of Science and Technology) |
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unknown |
topic |
Evolutionary Biology FOS Biological sciences 59999 Environmental Sciences not elsewhere classified FOS Earth and related environmental sciences 39999 Chemical Sciences not elsewhere classified FOS Chemical sciences Ecology Sociology FOS Sociology 69999 Biological Sciences not elsewhere classified |
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Evolutionary Biology FOS Biological sciences 59999 Environmental Sciences not elsewhere classified FOS Earth and related environmental sciences 39999 Chemical Sciences not elsewhere classified FOS Chemical sciences Ecology Sociology FOS Sociology 69999 Biological Sciences not elsewhere classified Masello, Juan Kato, Akiko Sommerfeld, Julia Mattern, Thomas Quillfeldt, Petra How animals distribute themselves in space: variable energy landscapes |
topic_facet |
Evolutionary Biology FOS Biological sciences 59999 Environmental Sciences not elsewhere classified FOS Earth and related environmental sciences 39999 Chemical Sciences not elsewhere classified FOS Chemical sciences Ecology Sociology FOS Sociology 69999 Biological Sciences not elsewhere classified |
description |
Abstract Background Foraging efficiency determines whether animals will be able to raise healthy broods, maintain their own condition, avoid predators and ultimately increase their fitness. Using accelerometers and GPS loggers, features of the habitat and the way animals deal with variable conditions can be translated into energetic costs of movement, which, in turn, can be translated to energy landscapes.We investigated energy landscapes in Gentoo Penguins Pygoscelis papua from two colonies at New Island, Falkland/Malvinas Islands. Results In our study, the marine areas used by the penguins, parameters of dive depth and the proportion of pelagic and benthic dives varied both between years and colonies. As a consequence, the energy landscapes also varied between the years, and we discuss how this was related to differences in food availability, which were also reflected in differences in carbon and nitrogen stable isotope values and isotopic niche metrics. In the second year, the energy landscape was characterized by lower foraging costs per energy gain, and breeding success was also higher in this year. Additionally, an area around three South American Fur Seal Arctocephalus australis colonies was never used. Conclusions These results confirm that energy landscapes vary in time and that the seabirds forage in areas of the energy landscapes that result in minimized energetic costs. Thus, our results support the view of energy landscapes and fear of predation as mechanisms underlying animal foraging behaviour. Furthermore, we show that energy landscapes are useful in linking energy gain and variable energy costs of foraging to breeding success. |
format |
Article in Journal/Newspaper |
author |
Masello, Juan Kato, Akiko Sommerfeld, Julia Mattern, Thomas Quillfeldt, Petra |
author_facet |
Masello, Juan Kato, Akiko Sommerfeld, Julia Mattern, Thomas Quillfeldt, Petra |
author_sort |
Masello, Juan |
title |
How animals distribute themselves in space: variable energy landscapes |
title_short |
How animals distribute themselves in space: variable energy landscapes |
title_full |
How animals distribute themselves in space: variable energy landscapes |
title_fullStr |
How animals distribute themselves in space: variable energy landscapes |
title_full_unstemmed |
How animals distribute themselves in space: variable energy landscapes |
title_sort |
how animals distribute themselves in space: variable energy landscapes |
publisher |
Figshare |
publishDate |
2017 |
url |
https://dx.doi.org/10.6084/m9.figshare.c.3819331 https://figshare.com/collections/How_animals_distribute_themselves_in_space_variable_energy_landscapes/3819331 |
genre |
Pygoscelis papua |
genre_facet |
Pygoscelis papua |
op_relation |
https://dx.doi.org/10.1186/s12983-017-0219-8 |
op_rights |
CC BY 4.0 https://creativecommons.org/licenses/by/4.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.6084/m9.figshare.c.3819331 https://doi.org/10.1186/s12983-017-0219-8 |
_version_ |
1766174882576465920 |