Identifying habitat-driven spatial variation in colony size of Herring Gulls Larus argentatus
Capsule: Spatial clustering was observed in colony growth rates of three large UK gull species with proxies of local marine and intertidal resources explaining part of this variation in two species. Aims: To investigate spatial clustering in colony growth rates of three gull species and determine wh...
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ftuglasgow:oai:eprints.gla.ac.uk:171306 2023-05-15T17:07:53+02:00 Identifying habitat-driven spatial variation in colony size of Herring Gulls Larus argentatus O'Hanlon, Nina Nager, Ruedi 2018-10 text https://eprints.gla.ac.uk/171306/ https://eprints.gla.ac.uk/171306/7/171306.pdf en eng Taylor & Francis https://eprints.gla.ac.uk/171306/7/171306.pdf O'Hanlon, N. and Nager, R. <http://eprints.gla.ac.uk/view/author/11468.html> (2018) Identifying habitat-driven spatial variation in colony size of Herring Gulls Larus argentatus. Bird Study <https://eprints.gla.ac.uk/view/journal_volume/Bird_Study.html>, 65(3), pp. 306-316. (doi:10.1080/00063657.2018.1518970 <https://doi.org/10.1080/00063657.2018.1518970>) QL Zoology Articles PeerReviewed 2018 ftuglasgow https://doi.org/10.1080/00063657.2018.1518970 2022-09-22T22:14:45Z Capsule: Spatial clustering was observed in colony growth rates of three large UK gull species with proxies of local marine and intertidal resources explaining part of this variation in two species. Aims: To investigate spatial clustering in colony growth rates of three gull species and determine which environmental variables may explain any spatial clustering observed. Methods: Colony growth rates were calculated for Herring Gull Larus argentatus, Lesser Black-backed Gull L. fuscus and Great Black-backed Gull L. marinus to identify spatial 2synchrony and to relate to proxies of local foraging conditions in coastal habitats. Results: Spatial clustering in growth rates was found in the gull species. Herring Gull colonies located in areas with greater availability of intertidal prey and fishery activity had higher growth rates. Lesser Black-backed Gull colonies in areas of higher chlorophyll a concentrations experienced more negative growth rates suggesting a negative effect in areas of potential local runoff from agriculture and built-up areas. Conclusion: Spatial clustering in the gulls’ colony growth rates indicated that local colonies did experience similar environmental conditions; helping identify variables influencing coastal populations of two gull species, highlighting the importance of marine habitats. These results highlight the need for species and area-specific management for these species of conservation concern. Article in Journal/Newspaper Lesser black-backed gull University of Glasgow: Enlighten - Publications Bird Study 65 3 306 316 |
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University of Glasgow: Enlighten - Publications |
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ftuglasgow |
language |
English |
topic |
QL Zoology |
spellingShingle |
QL Zoology O'Hanlon, Nina Nager, Ruedi Identifying habitat-driven spatial variation in colony size of Herring Gulls Larus argentatus |
topic_facet |
QL Zoology |
description |
Capsule: Spatial clustering was observed in colony growth rates of three large UK gull species with proxies of local marine and intertidal resources explaining part of this variation in two species. Aims: To investigate spatial clustering in colony growth rates of three gull species and determine which environmental variables may explain any spatial clustering observed. Methods: Colony growth rates were calculated for Herring Gull Larus argentatus, Lesser Black-backed Gull L. fuscus and Great Black-backed Gull L. marinus to identify spatial 2synchrony and to relate to proxies of local foraging conditions in coastal habitats. Results: Spatial clustering in growth rates was found in the gull species. Herring Gull colonies located in areas with greater availability of intertidal prey and fishery activity had higher growth rates. Lesser Black-backed Gull colonies in areas of higher chlorophyll a concentrations experienced more negative growth rates suggesting a negative effect in areas of potential local runoff from agriculture and built-up areas. Conclusion: Spatial clustering in the gulls’ colony growth rates indicated that local colonies did experience similar environmental conditions; helping identify variables influencing coastal populations of two gull species, highlighting the importance of marine habitats. These results highlight the need for species and area-specific management for these species of conservation concern. |
format |
Article in Journal/Newspaper |
author |
O'Hanlon, Nina Nager, Ruedi |
author_facet |
O'Hanlon, Nina Nager, Ruedi |
author_sort |
O'Hanlon, Nina |
title |
Identifying habitat-driven spatial variation in colony size of Herring Gulls Larus argentatus |
title_short |
Identifying habitat-driven spatial variation in colony size of Herring Gulls Larus argentatus |
title_full |
Identifying habitat-driven spatial variation in colony size of Herring Gulls Larus argentatus |
title_fullStr |
Identifying habitat-driven spatial variation in colony size of Herring Gulls Larus argentatus |
title_full_unstemmed |
Identifying habitat-driven spatial variation in colony size of Herring Gulls Larus argentatus |
title_sort |
identifying habitat-driven spatial variation in colony size of herring gulls larus argentatus |
publisher |
Taylor & Francis |
publishDate |
2018 |
url |
https://eprints.gla.ac.uk/171306/ https://eprints.gla.ac.uk/171306/7/171306.pdf |
genre |
Lesser black-backed gull |
genre_facet |
Lesser black-backed gull |
op_relation |
https://eprints.gla.ac.uk/171306/7/171306.pdf O'Hanlon, N. and Nager, R. <http://eprints.gla.ac.uk/view/author/11468.html> (2018) Identifying habitat-driven spatial variation in colony size of Herring Gulls Larus argentatus. Bird Study <https://eprints.gla.ac.uk/view/journal_volume/Bird_Study.html>, 65(3), pp. 306-316. (doi:10.1080/00063657.2018.1518970 <https://doi.org/10.1080/00063657.2018.1518970>) |
op_doi |
https://doi.org/10.1080/00063657.2018.1518970 |
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Bird Study |
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65 |
container_issue |
3 |
container_start_page |
306 |
op_container_end_page |
316 |
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1766063409997021184 |