Effect of neckband color on survival and recovery rates of Ross's geese
Abstract Colored neckbands are known to reduce survival rates of geese, but the underlying cause for lower survival is unknown. We tested the hypothesis that hunters cause this lower survival rate by actively targeting neckbanded geese. We evaluated this hypothesis by estimating recovery and surviva...
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crwiley:10.1002/jwmg.392 2024-09-30T14:41:39+00:00 Effect of neckband color on survival and recovery rates of Ross's geese Caswell, Jason H. Alisauskas, Ray T. Leafloor, James O. 2012 http://dx.doi.org/10.1002/jwmg.392 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fjwmg.392 https://onlinelibrary.wiley.com/doi/full/10.1002/jwmg.392 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor The Journal of Wildlife Management volume 76, issue 7, page 1456-1461 ISSN 0022-541X 1937-2817 journal-article 2012 crwiley https://doi.org/10.1002/jwmg.392 2024-09-17T04:44:52Z Abstract Colored neckbands are known to reduce survival rates of geese, but the underlying cause for lower survival is unknown. We tested the hypothesis that hunters cause this lower survival rate by actively targeting neckbanded geese. We evaluated this hypothesis by estimating recovery and survival rates of adult Ross's geese ( Chen rossii ) at both Queen Maud Gulf (QMG) and McConnell River (MCR) Migratory Bird Sanctuaries carrying each of 3 marker combinations: 1) standard legbands ( n = 11,321) for basic estimates of recovery and survival rates; 2) standard legbands and colored neckbands ( n = 8,587) as the marked sample most detectable and thus most vulnerable to targeting by hunters; and 3) standard legbands and white neckbands ( n = 6,501) as the sample exposed to the general risks of carrying neckbands but only minimally detectable by hunters, if at all. Recovery rates (±95% CL) of Ross's geese were lowest for those marked with legbands (0.024 ± 0.004 at MCR and 0.016 ± 0.003 at QMG) and highest for those marked with neckbands, regardless of neckband color (0.042 ± 0.005 at MCR and 0.035 ± 0.005 at QMG). Survival rates (±95% CL) were indistinguishable between geese marked with color and white neckbands (0.54 ± 0.08 at MCR and 0.52 ± 0.08 at QMG), but lower than those marked with standard legbands only (0.72 ± 0.17 at MCR and 0.83 ± 0.23 at QMG). Geese marked with white neckbands were recovered at rates similar to those marked with color neckbands, suggesting that hunter selection of color neckbands did not contribute greatly to lower survival rates in neckbanded geese. Rather, results suggest that neckbanded geese, regardless of neckband visibility, are more vulnerable to hunters than are geese marked only with legbands. © 2012 The Wildlife Society. Article in Journal/Newspaper Queen Maud Gulf Wiley Online Library Queen Maud Gulf ENVELOPE(-102.002,-102.002,68.334,68.334) The Journal of Wildlife Management 76 7 1456 1461 |
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Wiley Online Library |
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crwiley |
language |
English |
description |
Abstract Colored neckbands are known to reduce survival rates of geese, but the underlying cause for lower survival is unknown. We tested the hypothesis that hunters cause this lower survival rate by actively targeting neckbanded geese. We evaluated this hypothesis by estimating recovery and survival rates of adult Ross's geese ( Chen rossii ) at both Queen Maud Gulf (QMG) and McConnell River (MCR) Migratory Bird Sanctuaries carrying each of 3 marker combinations: 1) standard legbands ( n = 11,321) for basic estimates of recovery and survival rates; 2) standard legbands and colored neckbands ( n = 8,587) as the marked sample most detectable and thus most vulnerable to targeting by hunters; and 3) standard legbands and white neckbands ( n = 6,501) as the sample exposed to the general risks of carrying neckbands but only minimally detectable by hunters, if at all. Recovery rates (±95% CL) of Ross's geese were lowest for those marked with legbands (0.024 ± 0.004 at MCR and 0.016 ± 0.003 at QMG) and highest for those marked with neckbands, regardless of neckband color (0.042 ± 0.005 at MCR and 0.035 ± 0.005 at QMG). Survival rates (±95% CL) were indistinguishable between geese marked with color and white neckbands (0.54 ± 0.08 at MCR and 0.52 ± 0.08 at QMG), but lower than those marked with standard legbands only (0.72 ± 0.17 at MCR and 0.83 ± 0.23 at QMG). Geese marked with white neckbands were recovered at rates similar to those marked with color neckbands, suggesting that hunter selection of color neckbands did not contribute greatly to lower survival rates in neckbanded geese. Rather, results suggest that neckbanded geese, regardless of neckband visibility, are more vulnerable to hunters than are geese marked only with legbands. © 2012 The Wildlife Society. |
format |
Article in Journal/Newspaper |
author |
Caswell, Jason H. Alisauskas, Ray T. Leafloor, James O. |
spellingShingle |
Caswell, Jason H. Alisauskas, Ray T. Leafloor, James O. Effect of neckband color on survival and recovery rates of Ross's geese |
author_facet |
Caswell, Jason H. Alisauskas, Ray T. Leafloor, James O. |
author_sort |
Caswell, Jason H. |
title |
Effect of neckband color on survival and recovery rates of Ross's geese |
title_short |
Effect of neckband color on survival and recovery rates of Ross's geese |
title_full |
Effect of neckband color on survival and recovery rates of Ross's geese |
title_fullStr |
Effect of neckband color on survival and recovery rates of Ross's geese |
title_full_unstemmed |
Effect of neckband color on survival and recovery rates of Ross's geese |
title_sort |
effect of neckband color on survival and recovery rates of ross's geese |
publisher |
Wiley |
publishDate |
2012 |
url |
http://dx.doi.org/10.1002/jwmg.392 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fjwmg.392 https://onlinelibrary.wiley.com/doi/full/10.1002/jwmg.392 |
long_lat |
ENVELOPE(-102.002,-102.002,68.334,68.334) |
geographic |
Queen Maud Gulf |
geographic_facet |
Queen Maud Gulf |
genre |
Queen Maud Gulf |
genre_facet |
Queen Maud Gulf |
op_source |
The Journal of Wildlife Management volume 76, issue 7, page 1456-1461 ISSN 0022-541X 1937-2817 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1002/jwmg.392 |
container_title |
The Journal of Wildlife Management |
container_volume |
76 |
container_issue |
7 |
container_start_page |
1456 |
op_container_end_page |
1461 |
_version_ |
1811644127182323712 |