Restoration monitoring of harlequin duck populations in Prince WIlliam Sound and Afognak Island, AK (1989-1993)
We monitored densities of molting harlequin ducks and broods in oil spill area of western Prince William Sound (WPWS) and in the non-oiled eastern area (EPWS) during 1989-1993. A survey of sea duck foods was consistent with the literature, showing diverse prey in harlequins and the importance of mus...
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dataone:df35j.67.14 2024-10-03T18:46:13+00:00 Restoration monitoring of harlequin duck populations in Prince WIlliam Sound and Afognak Island, AK (1989-1993) Richard Gustin Dave Crowley Thomas Crowe The study area consisted of three broad regions: those areas of western Prince William Sound and northern Afognak Island included within the Exxon Valdez oil spill area, and non-exposed (unoiled) area of eastern Prince William Sound. ENVELOPE(-148.732,-145.718,61.171,59.726) BEGINDATE: 1989-01-01T00:00:00Z ENDDATE: 1993-01-01T00:00:00Z 2016-07-25T23:00:00Z https://search.dataone.org/view/df35j.67.14 unknown Gulf of Alaska Data Portal Afognak Island Alaska EVOS EVOSTC Exxon Valdez Exxon Valdez Oil Spill Trustee Council Harlequin ducks Histrionicus histrionicus oil spill Kodiak Prince William Sound restoration Histrionicus histrionicus histrionicus Dataset dataone:urn:node:GOA 2024-10-03T18:08:48Z We monitored densities of molting harlequin ducks and broods in oil spill area of western Prince William Sound (WPWS) and in the non-oiled eastern area (EPWS) during 1989-1993. A survey of sea duck foods was consistent with the literature, showing diverse prey in harlequins and the importance of mussels to goldeneyes and scoters. The shoreline density indices of molting harlequin ducks in in WPWS was consistently lower than those in EPWS. These data indicate that the densities of molting harlequin ducks were greater in the unoiled portions of PWS, suggesting differential use because of oil effects or regional ecological differences. Differences in survey timing and coverage among years contributed an unknown margin of error in comparisons across years and regions. The lack of pre-spill baseline population data and habitat differences between WPWS and EPWS preclude distinguishing oil spill effects from other ecological or demographic variation. Dataset Kodiak Alaska Gulf of Alaska Data Portal (via DataONE) ENVELOPE(-148.732,-145.718,61.171,59.726) |
institution |
Open Polar |
collection |
Gulf of Alaska Data Portal (via DataONE) |
op_collection_id |
dataone:urn:node:GOA |
language |
unknown |
topic |
Afognak Island Alaska EVOS EVOSTC Exxon Valdez Exxon Valdez Oil Spill Trustee Council Harlequin ducks Histrionicus histrionicus oil spill Kodiak Prince William Sound restoration Histrionicus histrionicus histrionicus |
spellingShingle |
Afognak Island Alaska EVOS EVOSTC Exxon Valdez Exxon Valdez Oil Spill Trustee Council Harlequin ducks Histrionicus histrionicus oil spill Kodiak Prince William Sound restoration Histrionicus histrionicus histrionicus Richard Gustin Dave Crowley Thomas Crowe Restoration monitoring of harlequin duck populations in Prince WIlliam Sound and Afognak Island, AK (1989-1993) |
topic_facet |
Afognak Island Alaska EVOS EVOSTC Exxon Valdez Exxon Valdez Oil Spill Trustee Council Harlequin ducks Histrionicus histrionicus oil spill Kodiak Prince William Sound restoration Histrionicus histrionicus histrionicus |
description |
We monitored densities of molting harlequin ducks and broods in oil spill area of western Prince William Sound (WPWS) and in the non-oiled eastern area (EPWS) during 1989-1993. A survey of sea duck foods was consistent with the literature, showing diverse prey in harlequins and the importance of mussels to goldeneyes and scoters. The shoreline density indices of molting harlequin ducks in in WPWS was consistently lower than those in EPWS. These data indicate that the densities of molting harlequin ducks were greater in the unoiled portions of PWS, suggesting differential use because of oil effects or regional ecological differences. Differences in survey timing and coverage among years contributed an unknown margin of error in comparisons across years and regions. The lack of pre-spill baseline population data and habitat differences between WPWS and EPWS preclude distinguishing oil spill effects from other ecological or demographic variation. |
format |
Dataset |
author |
Richard Gustin Dave Crowley Thomas Crowe |
author_facet |
Richard Gustin Dave Crowley Thomas Crowe |
author_sort |
Richard Gustin |
title |
Restoration monitoring of harlequin duck populations in Prince WIlliam Sound and Afognak Island, AK (1989-1993) |
title_short |
Restoration monitoring of harlequin duck populations in Prince WIlliam Sound and Afognak Island, AK (1989-1993) |
title_full |
Restoration monitoring of harlequin duck populations in Prince WIlliam Sound and Afognak Island, AK (1989-1993) |
title_fullStr |
Restoration monitoring of harlequin duck populations in Prince WIlliam Sound and Afognak Island, AK (1989-1993) |
title_full_unstemmed |
Restoration monitoring of harlequin duck populations in Prince WIlliam Sound and Afognak Island, AK (1989-1993) |
title_sort |
restoration monitoring of harlequin duck populations in prince william sound and afognak island, ak (1989-1993) |
publisher |
Gulf of Alaska Data Portal |
publishDate |
|
url |
https://search.dataone.org/view/df35j.67.14 |
op_coverage |
The study area consisted of three broad regions: those areas of western Prince William Sound and northern Afognak Island included within the Exxon Valdez oil spill area, and non-exposed (unoiled) area of eastern Prince William Sound. ENVELOPE(-148.732,-145.718,61.171,59.726) BEGINDATE: 1989-01-01T00:00:00Z ENDDATE: 1993-01-01T00:00:00Z |
long_lat |
ENVELOPE(-148.732,-145.718,61.171,59.726) |
genre |
Kodiak Alaska |
genre_facet |
Kodiak Alaska |
_version_ |
1811925859379970048 |