Investigating Indirect Anthropogenic Effects on Spatial Variation in Nest Predation Risk and Shorebird Nest Success in Churchill, Manitoba
Nest predation risk increases at lower latitudes, and some shorebirds nesting at the southernmost limits of their ranges in Churchill, Manitoba tend to experience lower nest success than those at other Arctic sites. This study investigates whether proximity to human settlement affects predation risk...
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ftyorkuniv:oai:yorkspace.library.yorku.ca:10315/37229 2023-05-15T14:31:11+02:00 Investigating Indirect Anthropogenic Effects on Spatial Variation in Nest Predation Risk and Shorebird Nest Success in Churchill, Manitoba Taylor Marie Brown Laura McKinnon 2020-04-22T14:32:03Z application/pdf https://yorkspace.library.yorku.ca/xmlui/handle/10315/37229 en eng https://yorkspace.library.yorku.ca/xmlui/handle/10315/37229 Author owns copyright, except where explicitly noted. Please contact the author directly with licensing requests. Ecology avian predator prey anthropogenic shorebird artificial nest artificial nest experiment predator-prey relationship nest survival plover whimbrel sandpiper dunlin godwit dowitcher arctic fox parasitic jaeger diet egg camera trap subarctic arctic red fox DSR daily nest survival human settlement hudson bay breeding incubation temperature logger hatch predation rate den survey herring gull common raven sandhill crane Electronic Thesis or Dissertation 2020 ftyorkuniv 2022-08-22T12:58:43Z Nest predation risk increases at lower latitudes, and some shorebirds nesting at the southernmost limits of their ranges in Churchill, Manitoba tend to experience lower nest success than those at other Arctic sites. This study investigates whether proximity to human settlement affects predation risk, predator abundance and shorebird daily nest survival near Churchill by measuring these variables at varying distances from town. Camera traps at nests confirmed that foxes were important nest predators. A nests distance to town was negatively correlated with its distance to the nearest fox den. Predation risk decreased as distances from fox dens and Parasitic Jaeger nests increased, and at high abundances of avian predators. Shorebird daily nest survival tended to be lower near fox dens and higher with a camera present. Overall, these results suggest that shorebirds may benefit from proximity to town due to reduced fox denning activity close to town. Thesis Arctic Fox Arctic Churchill Hudson Bay Parasitic Jaeger Subarctic Whimbrel York University, Toronto: YorkSpace Arctic Hudson Hudson Bay |
institution |
Open Polar |
collection |
York University, Toronto: YorkSpace |
op_collection_id |
ftyorkuniv |
language |
English |
topic |
Ecology avian predator prey anthropogenic shorebird artificial nest artificial nest experiment predator-prey relationship nest survival plover whimbrel sandpiper dunlin godwit dowitcher arctic fox parasitic jaeger diet egg camera trap subarctic arctic red fox DSR daily nest survival human settlement hudson bay breeding incubation temperature logger hatch predation rate den survey herring gull common raven sandhill crane |
spellingShingle |
Ecology avian predator prey anthropogenic shorebird artificial nest artificial nest experiment predator-prey relationship nest survival plover whimbrel sandpiper dunlin godwit dowitcher arctic fox parasitic jaeger diet egg camera trap subarctic arctic red fox DSR daily nest survival human settlement hudson bay breeding incubation temperature logger hatch predation rate den survey herring gull common raven sandhill crane Taylor Marie Brown Investigating Indirect Anthropogenic Effects on Spatial Variation in Nest Predation Risk and Shorebird Nest Success in Churchill, Manitoba |
topic_facet |
Ecology avian predator prey anthropogenic shorebird artificial nest artificial nest experiment predator-prey relationship nest survival plover whimbrel sandpiper dunlin godwit dowitcher arctic fox parasitic jaeger diet egg camera trap subarctic arctic red fox DSR daily nest survival human settlement hudson bay breeding incubation temperature logger hatch predation rate den survey herring gull common raven sandhill crane |
description |
Nest predation risk increases at lower latitudes, and some shorebirds nesting at the southernmost limits of their ranges in Churchill, Manitoba tend to experience lower nest success than those at other Arctic sites. This study investigates whether proximity to human settlement affects predation risk, predator abundance and shorebird daily nest survival near Churchill by measuring these variables at varying distances from town. Camera traps at nests confirmed that foxes were important nest predators. A nests distance to town was negatively correlated with its distance to the nearest fox den. Predation risk decreased as distances from fox dens and Parasitic Jaeger nests increased, and at high abundances of avian predators. Shorebird daily nest survival tended to be lower near fox dens and higher with a camera present. Overall, these results suggest that shorebirds may benefit from proximity to town due to reduced fox denning activity close to town. |
author2 |
Laura McKinnon |
format |
Thesis |
author |
Taylor Marie Brown |
author_facet |
Taylor Marie Brown |
author_sort |
Taylor Marie Brown |
title |
Investigating Indirect Anthropogenic Effects on Spatial Variation in Nest Predation Risk and Shorebird Nest Success in Churchill, Manitoba |
title_short |
Investigating Indirect Anthropogenic Effects on Spatial Variation in Nest Predation Risk and Shorebird Nest Success in Churchill, Manitoba |
title_full |
Investigating Indirect Anthropogenic Effects on Spatial Variation in Nest Predation Risk and Shorebird Nest Success in Churchill, Manitoba |
title_fullStr |
Investigating Indirect Anthropogenic Effects on Spatial Variation in Nest Predation Risk and Shorebird Nest Success in Churchill, Manitoba |
title_full_unstemmed |
Investigating Indirect Anthropogenic Effects on Spatial Variation in Nest Predation Risk and Shorebird Nest Success in Churchill, Manitoba |
title_sort |
investigating indirect anthropogenic effects on spatial variation in nest predation risk and shorebird nest success in churchill, manitoba |
publishDate |
2020 |
url |
https://yorkspace.library.yorku.ca/xmlui/handle/10315/37229 |
geographic |
Arctic Hudson Hudson Bay |
geographic_facet |
Arctic Hudson Hudson Bay |
genre |
Arctic Fox Arctic Churchill Hudson Bay Parasitic Jaeger Subarctic Whimbrel |
genre_facet |
Arctic Fox Arctic Churchill Hudson Bay Parasitic Jaeger Subarctic Whimbrel |
op_relation |
https://yorkspace.library.yorku.ca/xmlui/handle/10315/37229 |
op_rights |
Author owns copyright, except where explicitly noted. Please contact the author directly with licensing requests. |
_version_ |
1766304876339396608 |