Nest Survival and Density of Cackling Geese (Branta hutchinsii) Inside and Outside A Ross's Goose (Chen rossii) Colony
The influence of heterospecifics on successful avian reproduction remains poorly understood, despite the role that such relationships may play in the evolution of reproductive strategies. We estimated nest survival of Cackling Geese (Branta hutchinsii) near McConnell River, Nunavut, in 2004 and 2005...
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ftbioone:10.1525/auk.2011.10266 2024-05-12T08:09:06+00:00 Nest Survival and Density of Cackling Geese (Branta hutchinsii) Inside and Outside A Ross's Goose (Chen rossii) Colony Frank B. Baldwin Ray T. Alisauskas James O. Leafloor Frank B. Baldwin Ray T. Alisauskas James O. Leafloor world 2011-04-01 text/HTML https://doi.org/10.1525/auk.2011.10266 en eng American Ornithological Society doi:10.1525/auk.2011.10266 All rights reserved. https://doi.org/10.1525/auk.2011.10266 Text 2011 ftbioone https://doi.org/10.1525/auk.2011.10266 2024-04-16T02:13:14Z The influence of heterospecifics on successful avian reproduction remains poorly understood, despite the role that such relationships may play in the evolution of reproductive strategies. We estimated nest survival of Cackling Geese (Branta hutchinsii) near McConnell River, Nunavut, in 2004 and 2005 in relation to (1) nest initiation date; (2) nest age; (3) nesting habitat; (4) presence in or absence from a colony composed mainly of Ross's Geese (Chen rossii); and (5) density of neighboring Lesser Snow Geese (C. caerulescens caerulescens) and Ross's Geese. We also assessed whether there was any consistent pattern in nest densities of Cackling Geese inside and outside the colony, using distance sampling methods that account for imperfect detection. Nest survival declined both with later nesting and with increased densities of surrounding Lesser Snow Geese and Ross's Geese, independently of whether or not Cackling Geese nested in the Ross's Goose colony. However, despite these negative interspecific effects at the neighborhood scale, nests had higher survival probabilities inside the colony than outside it when we controlled for nest initiation date and density of neighboring Lesser Snow Goose and Ross's Goose nests. There was no consistent difference in nest densities of Cackling Geese nesting inside and outside the colony. We conclude that Cackling Geese coincidentally establish nest sites inside the colony; the best nest locations are in low-density areas of the colony, but the location of these areas is unpredictable among years because Ross's Geese usually initiate nests later than Cackling Geese. Text Nunavut BioOne Online Journals Nunavut The Auk 128 2 404 414 |
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The influence of heterospecifics on successful avian reproduction remains poorly understood, despite the role that such relationships may play in the evolution of reproductive strategies. We estimated nest survival of Cackling Geese (Branta hutchinsii) near McConnell River, Nunavut, in 2004 and 2005 in relation to (1) nest initiation date; (2) nest age; (3) nesting habitat; (4) presence in or absence from a colony composed mainly of Ross's Geese (Chen rossii); and (5) density of neighboring Lesser Snow Geese (C. caerulescens caerulescens) and Ross's Geese. We also assessed whether there was any consistent pattern in nest densities of Cackling Geese inside and outside the colony, using distance sampling methods that account for imperfect detection. Nest survival declined both with later nesting and with increased densities of surrounding Lesser Snow Geese and Ross's Geese, independently of whether or not Cackling Geese nested in the Ross's Goose colony. However, despite these negative interspecific effects at the neighborhood scale, nests had higher survival probabilities inside the colony than outside it when we controlled for nest initiation date and density of neighboring Lesser Snow Goose and Ross's Goose nests. There was no consistent difference in nest densities of Cackling Geese nesting inside and outside the colony. We conclude that Cackling Geese coincidentally establish nest sites inside the colony; the best nest locations are in low-density areas of the colony, but the location of these areas is unpredictable among years because Ross's Geese usually initiate nests later than Cackling Geese. |
author2 |
Frank B. Baldwin Ray T. Alisauskas James O. Leafloor |
format |
Text |
author |
Frank B. Baldwin Ray T. Alisauskas James O. Leafloor |
spellingShingle |
Frank B. Baldwin Ray T. Alisauskas James O. Leafloor Nest Survival and Density of Cackling Geese (Branta hutchinsii) Inside and Outside A Ross's Goose (Chen rossii) Colony |
author_facet |
Frank B. Baldwin Ray T. Alisauskas James O. Leafloor |
author_sort |
Frank B. Baldwin |
title |
Nest Survival and Density of Cackling Geese (Branta hutchinsii) Inside and Outside A Ross's Goose (Chen rossii) Colony |
title_short |
Nest Survival and Density of Cackling Geese (Branta hutchinsii) Inside and Outside A Ross's Goose (Chen rossii) Colony |
title_full |
Nest Survival and Density of Cackling Geese (Branta hutchinsii) Inside and Outside A Ross's Goose (Chen rossii) Colony |
title_fullStr |
Nest Survival and Density of Cackling Geese (Branta hutchinsii) Inside and Outside A Ross's Goose (Chen rossii) Colony |
title_full_unstemmed |
Nest Survival and Density of Cackling Geese (Branta hutchinsii) Inside and Outside A Ross's Goose (Chen rossii) Colony |
title_sort |
nest survival and density of cackling geese (branta hutchinsii) inside and outside a ross's goose (chen rossii) colony |
publisher |
American Ornithological Society |
publishDate |
2011 |
url |
https://doi.org/10.1525/auk.2011.10266 |
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world |
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Nunavut |
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Nunavut |
genre |
Nunavut |
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Nunavut |
op_source |
https://doi.org/10.1525/auk.2011.10266 |
op_relation |
doi:10.1525/auk.2011.10266 |
op_rights |
All rights reserved. |
op_doi |
https://doi.org/10.1525/auk.2011.10266 |
container_title |
The Auk |
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128 |
container_issue |
2 |
container_start_page |
404 |
op_container_end_page |
414 |
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1798852262752157696 |