Evaluation of predator numerical responses
We evaluated hypotheses of the dynamics of predators (lynx) relative to prey (snowshoe hares) and predator abundance in the Yukon, Canada. The hypotheses were that predator (lynx) dynamics are influenced by prey density, or by both prey and predator densities. Annual lynx population growth rate (r),...
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Language: | English |
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2007
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Online Access: | https://researchprofiles.canberra.edu.au/en/publications/21d0f8d0-4eee-46bd-8e27-960f1e0e202d https://doi.org/10.1071/WR06171 https://researchsystem.canberra.edu.au/ws/files/19165300/2007_Hone_Evaluation_of_predator_numerical_responses.pdf |
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ftcanberrauncris:oai:pure.atira.dk:publications/21d0f8d0-4eee-46bd-8e27-960f1e0e202d 2024-09-15T18:41:44+00:00 Evaluation of predator numerical responses Hone, Jim KREBS, Charles O'Donoghue, Mark Boutin, Stan 2007 application/pdf https://researchprofiles.canberra.edu.au/en/publications/21d0f8d0-4eee-46bd-8e27-960f1e0e202d https://doi.org/10.1071/WR06171 https://researchsystem.canberra.edu.au/ws/files/19165300/2007_Hone_Evaluation_of_predator_numerical_responses.pdf eng eng info:eu-repo/semantics/closedAccess Hone , J , KREBS , C , O'Donoghue , M & Boutin , S 2007 , ' Evaluation of predator numerical responses ' , Wildlife Research , vol. 34 , no. 5 , pp. 335-341 . https://doi.org/10.1071/WR06171 article 2007 ftcanberrauncris https://doi.org/10.1071/WR06171 2024-09-04T23:40:45Z We evaluated hypotheses of the dynamics of predators (lynx) relative to prey (snowshoe hares) and predator abundance in the Yukon, Canada. The hypotheses were that predator (lynx) dynamics are influenced by prey density, or by both prey and predator densities. Annual lynx population growth rate (r), estimated from lynx counts, was positively related to previous hare density and negatively related to previous lynx density, as described by the best-fitting additive model (R 2 = 0.85). Annual lynx growth rate (r) estimated from lynx tracks was positively related to the ratio of hares per lynx in the best-fitting model (R 2 = 0.55). There was most support for the prey- and predator-dependent hypothesis of predator dynamics. Projected lynx tracks showed similar trends to observed abundance but lagged one year, emphasising the need for evaluation of projected predator trends Article in Journal/Newspaper Lynx Yukon University of Canberra Research Portal Wildlife Research 34 5 335 |
institution |
Open Polar |
collection |
University of Canberra Research Portal |
op_collection_id |
ftcanberrauncris |
language |
English |
description |
We evaluated hypotheses of the dynamics of predators (lynx) relative to prey (snowshoe hares) and predator abundance in the Yukon, Canada. The hypotheses were that predator (lynx) dynamics are influenced by prey density, or by both prey and predator densities. Annual lynx population growth rate (r), estimated from lynx counts, was positively related to previous hare density and negatively related to previous lynx density, as described by the best-fitting additive model (R 2 = 0.85). Annual lynx growth rate (r) estimated from lynx tracks was positively related to the ratio of hares per lynx in the best-fitting model (R 2 = 0.55). There was most support for the prey- and predator-dependent hypothesis of predator dynamics. Projected lynx tracks showed similar trends to observed abundance but lagged one year, emphasising the need for evaluation of projected predator trends |
format |
Article in Journal/Newspaper |
author |
Hone, Jim KREBS, Charles O'Donoghue, Mark Boutin, Stan |
spellingShingle |
Hone, Jim KREBS, Charles O'Donoghue, Mark Boutin, Stan Evaluation of predator numerical responses |
author_facet |
Hone, Jim KREBS, Charles O'Donoghue, Mark Boutin, Stan |
author_sort |
Hone, Jim |
title |
Evaluation of predator numerical responses |
title_short |
Evaluation of predator numerical responses |
title_full |
Evaluation of predator numerical responses |
title_fullStr |
Evaluation of predator numerical responses |
title_full_unstemmed |
Evaluation of predator numerical responses |
title_sort |
evaluation of predator numerical responses |
publishDate |
2007 |
url |
https://researchprofiles.canberra.edu.au/en/publications/21d0f8d0-4eee-46bd-8e27-960f1e0e202d https://doi.org/10.1071/WR06171 https://researchsystem.canberra.edu.au/ws/files/19165300/2007_Hone_Evaluation_of_predator_numerical_responses.pdf |
genre |
Lynx Yukon |
genre_facet |
Lynx Yukon |
op_source |
Hone , J , KREBS , C , O'Donoghue , M & Boutin , S 2007 , ' Evaluation of predator numerical responses ' , Wildlife Research , vol. 34 , no. 5 , pp. 335-341 . https://doi.org/10.1071/WR06171 |
op_rights |
info:eu-repo/semantics/closedAccess |
op_doi |
https://doi.org/10.1071/WR06171 |
container_title |
Wildlife Research |
container_volume |
34 |
container_issue |
5 |
container_start_page |
335 |
_version_ |
1810486117767577600 |