Avian nest survival in post-logging coastal buffer strips on Prince of Wales Island, Alaska
Thesis (M.S.)--Humboldt State University, Natural Resources, Wildlife, 2006 I examined the effect of forest buffer width and nest site characteristics on the nest survival of forest birds on Prince of Wales Island, Alaska. During 2002 and 2003, a total of 164 nests of three closed cup (Chestnut-back...
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ftcalifstateuniv:oai:dspace.calstate.edu:2148/111 2023-05-15T18:03:31+02:00 Avian nest survival in post-logging coastal buffer strips on Prince of Wales Island, Alaska Sperry, David M. George, T. Luke 2006-09 http://hdl.handle.net/2148/111 en-US eng Humboldt State University http://hdl.handle.net/2148/111 Alaska Forest management Logistic-exposure Nest survival Prince of Wales Island Tongass National Forest Masters Thesis 2006 ftcalifstateuniv 2022-04-13T11:09:35Z Thesis (M.S.)--Humboldt State University, Natural Resources, Wildlife, 2006 I examined the effect of forest buffer width and nest site characteristics on the nest survival of forest birds on Prince of Wales Island, Alaska. During 2002 and 2003, a total of 164 nests of three closed cup (Chestnut-backed Chickadee (Parus rufescens), Red-breasted Sapsucker (Sphyrapicus ruber) and Winter Wren (Troglodytes troglodytes)) and four open cup (Pacific-slope Flycatcher (Empidonax difficilis), Hermit Thrush (Cartharus guttatus), Swainson???s Thrush (Cartharus ustulatus) and Varied Thrush (Ixoreus naevius)) species were monitored within forested buffers along the coastline. I modeled daily survival rate (DSR) of closed (DSR = 0.989) and open (DSR = 0.982) cup nesting species independently using variables at two spatial scales. For closed cup nests the model best describing variation in DSR included height of nest and species. Nests located higher from the ground had better nest success. Variation in DSR of open cup nests was best explained by species. Pacific-slope Flycatcher nests had the highest success (87%) whereas Varied Thrush nests had the lowest (21%). DSR of Hermit Thrush nests, the only species for which I had adequate data to analyze separately, was related to distance to the coastline. Species with low DSR had similar nest site characteristics including diameter of nesting substrate and average percentage concealment of nest. However, these nest site characteristics alone do not determine DSR of the species evaluated in my study. Width of coastal forested buffers appears to have a negligible effect on DSR, however, some species exhibited low DSR within the buffers and further examination of these species is recommended. U.S. Fish and Wildlife Service, U.S. Forest Service, Alaska Department of Fish and Game, Humboldt State University Sponsored Programs Foundation Master Thesis Prince of Wales Island Alaska California State University (CSU): DSpace Pacific Parus ENVELOPE(3.950,3.950,-71.983,-71.983) Prince of Wales Island ENVELOPE(-99.001,-99.001,72.668,72.668) |
institution |
Open Polar |
collection |
California State University (CSU): DSpace |
op_collection_id |
ftcalifstateuniv |
language |
English |
topic |
Alaska Forest management Logistic-exposure Nest survival Prince of Wales Island Tongass National Forest |
spellingShingle |
Alaska Forest management Logistic-exposure Nest survival Prince of Wales Island Tongass National Forest Sperry, David M. Avian nest survival in post-logging coastal buffer strips on Prince of Wales Island, Alaska |
topic_facet |
Alaska Forest management Logistic-exposure Nest survival Prince of Wales Island Tongass National Forest |
description |
Thesis (M.S.)--Humboldt State University, Natural Resources, Wildlife, 2006 I examined the effect of forest buffer width and nest site characteristics on the nest survival of forest birds on Prince of Wales Island, Alaska. During 2002 and 2003, a total of 164 nests of three closed cup (Chestnut-backed Chickadee (Parus rufescens), Red-breasted Sapsucker (Sphyrapicus ruber) and Winter Wren (Troglodytes troglodytes)) and four open cup (Pacific-slope Flycatcher (Empidonax difficilis), Hermit Thrush (Cartharus guttatus), Swainson???s Thrush (Cartharus ustulatus) and Varied Thrush (Ixoreus naevius)) species were monitored within forested buffers along the coastline. I modeled daily survival rate (DSR) of closed (DSR = 0.989) and open (DSR = 0.982) cup nesting species independently using variables at two spatial scales. For closed cup nests the model best describing variation in DSR included height of nest and species. Nests located higher from the ground had better nest success. Variation in DSR of open cup nests was best explained by species. Pacific-slope Flycatcher nests had the highest success (87%) whereas Varied Thrush nests had the lowest (21%). DSR of Hermit Thrush nests, the only species for which I had adequate data to analyze separately, was related to distance to the coastline. Species with low DSR had similar nest site characteristics including diameter of nesting substrate and average percentage concealment of nest. However, these nest site characteristics alone do not determine DSR of the species evaluated in my study. Width of coastal forested buffers appears to have a negligible effect on DSR, however, some species exhibited low DSR within the buffers and further examination of these species is recommended. U.S. Fish and Wildlife Service, U.S. Forest Service, Alaska Department of Fish and Game, Humboldt State University Sponsored Programs Foundation |
author2 |
George, T. Luke |
format |
Master Thesis |
author |
Sperry, David M. |
author_facet |
Sperry, David M. |
author_sort |
Sperry, David M. |
title |
Avian nest survival in post-logging coastal buffer strips on Prince of Wales Island, Alaska |
title_short |
Avian nest survival in post-logging coastal buffer strips on Prince of Wales Island, Alaska |
title_full |
Avian nest survival in post-logging coastal buffer strips on Prince of Wales Island, Alaska |
title_fullStr |
Avian nest survival in post-logging coastal buffer strips on Prince of Wales Island, Alaska |
title_full_unstemmed |
Avian nest survival in post-logging coastal buffer strips on Prince of Wales Island, Alaska |
title_sort |
avian nest survival in post-logging coastal buffer strips on prince of wales island, alaska |
publisher |
Humboldt State University |
publishDate |
2006 |
url |
http://hdl.handle.net/2148/111 |
long_lat |
ENVELOPE(3.950,3.950,-71.983,-71.983) ENVELOPE(-99.001,-99.001,72.668,72.668) |
geographic |
Pacific Parus Prince of Wales Island |
geographic_facet |
Pacific Parus Prince of Wales Island |
genre |
Prince of Wales Island Alaska |
genre_facet |
Prince of Wales Island Alaska |
op_relation |
http://hdl.handle.net/2148/111 |
_version_ |
1766174388903739392 |