The Effects of Breeder Loss on Wolves
Abstract Managers of recovering wolf ( Canis lupus ) populations require knowledge regarding the potential impacts caused by the loss of territorial, breeding wolves when devising plans that aim to balance population goals with human concerns. Although ecologists have studied wolves extensively, we...
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Online Access: | http://dx.doi.org/10.2193/2006-305 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.2193%2F2006-305 |
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crwiley:10.2193/2006-305 2024-09-15T18:01:27+00:00 The Effects of Breeder Loss on Wolves BRAINERD, SCOTT M. ANDRÉN, HENRIK BANGS, EDWARD E. BRADLEY, ELIZABETH H. FONTAINE, JOSEPH A. HALL, WAYNE ILIOPOULOS, YORGOS JIMENEZ, MICHAEL D. JOZWIAK, ELIZABETH A. LIBERG, OLOF MACK, CURT M. MEIER, THOMAS J. NIEMEYER, CARTER C. PEDERSEN, HANS C. SAND, HÃKAN SCHULTZ, RONALD N. SMITH, DOUGLAS W. WABAKKEN, PETTER WYDEVEN, ADRIAN P. 2008 http://dx.doi.org/10.2193/2006-305 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.2193%2F2006-305 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor The Journal of Wildlife Management volume 72, issue 1, page 89-98 ISSN 0022-541X 1937-2817 journal-article 2008 crwiley https://doi.org/10.2193/2006-305 2024-09-05T05:04:01Z Abstract Managers of recovering wolf ( Canis lupus ) populations require knowledge regarding the potential impacts caused by the loss of territorial, breeding wolves when devising plans that aim to balance population goals with human concerns. Although ecologists have studied wolves extensively, we lack an understanding of this phenomenon as published records are sparse. Therefore, we pooled data ( n = 134 cases) on 148 territorial breeding wolves (75 M and 73 F) from our research and published accounts to assess the impacts of breeder loss on wolf pup survival, reproduction, and territorial social groups. In 58 of 71 cases (84%), ≥1 pup survived, and the number or sex of remaining breeders (including multiple breeders) did not influence pup survival. Pups survived more frequently in groups of ≥6 wolves (90%) compared with smaller groups (68%). Auxiliary nonbreeders benefited pup survival, with pups surviving in 92% of cases where auxiliaries were present and 64% where they were absent. Logistic regression analysis indicated that the number of adult‐sized wolves remaining after breeder loss, along with pup age, had the greatest influence on pup survival. Territorial wolves reproduced the following season in 47% of cases, and a greater proportion reproduced where one breeder had to be replaced (56%) versus cases where both breeders had to be replaced (9%). Group size was greater for wolves that reproduced the following season compared with those that did not reproduce. Large recolonizing (>75 wolves) and saturated wolf populations had similar times to breeder replacement and next reproduction, which was about half that for small recolonizing (≤75 wolves) populations. We found inverse relationships between recolonizing population size and time to breeder replacement ( r = —0.37) and time to next reproduction ( r = —0.36). Time to breeder replacement correlated strongly with time to next reproduction ( r =0.97). Wolf social groups dissolved and abandoned their territories subsequent to breeder loss in 38% of ... Article in Journal/Newspaper Canis lupus Wiley Online Library The Journal of Wildlife Management 72 1 89 98 |
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Open Polar |
collection |
Wiley Online Library |
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crwiley |
language |
English |
description |
Abstract Managers of recovering wolf ( Canis lupus ) populations require knowledge regarding the potential impacts caused by the loss of territorial, breeding wolves when devising plans that aim to balance population goals with human concerns. Although ecologists have studied wolves extensively, we lack an understanding of this phenomenon as published records are sparse. Therefore, we pooled data ( n = 134 cases) on 148 territorial breeding wolves (75 M and 73 F) from our research and published accounts to assess the impacts of breeder loss on wolf pup survival, reproduction, and territorial social groups. In 58 of 71 cases (84%), ≥1 pup survived, and the number or sex of remaining breeders (including multiple breeders) did not influence pup survival. Pups survived more frequently in groups of ≥6 wolves (90%) compared with smaller groups (68%). Auxiliary nonbreeders benefited pup survival, with pups surviving in 92% of cases where auxiliaries were present and 64% where they were absent. Logistic regression analysis indicated that the number of adult‐sized wolves remaining after breeder loss, along with pup age, had the greatest influence on pup survival. Territorial wolves reproduced the following season in 47% of cases, and a greater proportion reproduced where one breeder had to be replaced (56%) versus cases where both breeders had to be replaced (9%). Group size was greater for wolves that reproduced the following season compared with those that did not reproduce. Large recolonizing (>75 wolves) and saturated wolf populations had similar times to breeder replacement and next reproduction, which was about half that for small recolonizing (≤75 wolves) populations. We found inverse relationships between recolonizing population size and time to breeder replacement ( r = —0.37) and time to next reproduction ( r = —0.36). Time to breeder replacement correlated strongly with time to next reproduction ( r =0.97). Wolf social groups dissolved and abandoned their territories subsequent to breeder loss in 38% of ... |
format |
Article in Journal/Newspaper |
author |
BRAINERD, SCOTT M. ANDRÉN, HENRIK BANGS, EDWARD E. BRADLEY, ELIZABETH H. FONTAINE, JOSEPH A. HALL, WAYNE ILIOPOULOS, YORGOS JIMENEZ, MICHAEL D. JOZWIAK, ELIZABETH A. LIBERG, OLOF MACK, CURT M. MEIER, THOMAS J. NIEMEYER, CARTER C. PEDERSEN, HANS C. SAND, HÃKAN SCHULTZ, RONALD N. SMITH, DOUGLAS W. WABAKKEN, PETTER WYDEVEN, ADRIAN P. |
spellingShingle |
BRAINERD, SCOTT M. ANDRÉN, HENRIK BANGS, EDWARD E. BRADLEY, ELIZABETH H. FONTAINE, JOSEPH A. HALL, WAYNE ILIOPOULOS, YORGOS JIMENEZ, MICHAEL D. JOZWIAK, ELIZABETH A. LIBERG, OLOF MACK, CURT M. MEIER, THOMAS J. NIEMEYER, CARTER C. PEDERSEN, HANS C. SAND, HÃKAN SCHULTZ, RONALD N. SMITH, DOUGLAS W. WABAKKEN, PETTER WYDEVEN, ADRIAN P. The Effects of Breeder Loss on Wolves |
author_facet |
BRAINERD, SCOTT M. ANDRÉN, HENRIK BANGS, EDWARD E. BRADLEY, ELIZABETH H. FONTAINE, JOSEPH A. HALL, WAYNE ILIOPOULOS, YORGOS JIMENEZ, MICHAEL D. JOZWIAK, ELIZABETH A. LIBERG, OLOF MACK, CURT M. MEIER, THOMAS J. NIEMEYER, CARTER C. PEDERSEN, HANS C. SAND, HÃKAN SCHULTZ, RONALD N. SMITH, DOUGLAS W. WABAKKEN, PETTER WYDEVEN, ADRIAN P. |
author_sort |
BRAINERD, SCOTT M. |
title |
The Effects of Breeder Loss on Wolves |
title_short |
The Effects of Breeder Loss on Wolves |
title_full |
The Effects of Breeder Loss on Wolves |
title_fullStr |
The Effects of Breeder Loss on Wolves |
title_full_unstemmed |
The Effects of Breeder Loss on Wolves |
title_sort |
effects of breeder loss on wolves |
publisher |
Wiley |
publishDate |
2008 |
url |
http://dx.doi.org/10.2193/2006-305 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.2193%2F2006-305 |
genre |
Canis lupus |
genre_facet |
Canis lupus |
op_source |
The Journal of Wildlife Management volume 72, issue 1, page 89-98 ISSN 0022-541X 1937-2817 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.2193/2006-305 |
container_title |
The Journal of Wildlife Management |
container_volume |
72 |
container_issue |
1 |
container_start_page |
89 |
op_container_end_page |
98 |
_version_ |
1810438606658994176 |