Seabird Population Transect Surveys
Seabirds are long-lived, upper trophic level predators that are integral components of marine ecosystems. Marine protected areas (MPAs) can provide both direct and indirect benefits to seabirds. Direct benefits involve reducing the direct interactions seabirds have with humans such as from fisheries...
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KNB Data Repository
2017
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Online Access: | https://dx.doi.org/10.5063/f18g8hv6 https://knb.ecoinformatics.org/view/doi:10.5063/F18G8HV6 |
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ftdatacite:10.5063/f18g8hv6 2023-05-15T16:33:11+02:00 Seabird Population Transect Surveys Howar, Julie 2017 text/xml https://dx.doi.org/10.5063/f18g8hv6 https://knb.ecoinformatics.org/view/doi:10.5063/F18G8HV6 en eng KNB Data Repository South Coast Baseline Characterization of Nearshore and Estuarine SeabirdsSeabird Population Transect Surveys2012 to 2013 Ecological data Kelp and Shallow Rock Ecosystems 0-30 meters Mid-Depth Rocky Ecosystems 30-100 meters Nearshore Pelagic Ecosystems >30m Rocky Intertidal Ecosystems Soft-Bottom Subtidal Ecosystems 0-100 meters seabird ecology seabird monitoring breeding population roost utilization brandt's cormorant pelagic cormorant double-crested cormorant western gull pigeon guillemot brown pelican black oystercatcher california sea lion harbor seal Dataset dataset 2017 ftdatacite https://doi.org/10.5063/f18g8hv6 2022-04-01T09:51:46Z Seabirds are long-lived, upper trophic level predators that are integral components of marine ecosystems. Marine protected areas (MPAs) can provide both direct and indirect benefits to seabirds. Direct benefits involve reducing the direct interactions seabirds have with humans such as from fisheries and recreational activities. Indirect benefits involve reducing competition with humans for prey resources. As the abundance of prey increases within and adjacent to MPAs, seabirds may benefit as more abundant prey resources lead to increases in their productivity and population sizes. We monitored four coastally breeding seabirds that feed largely on juvenile and other small fishes in nearshore habitats (Brandt’s cormorant, pelagic cormorant, western gull, and California least tern) and one shorebird that feeds on rocky intertidal invertebrates (black oystercatcher). We collected data on baseline population size, productivity, foraging rates, and rates of human-caused disturbance inside and outside of three MPA clusters: Gull Island SMCA, Painted Cave SMCA and Scorpion SMR (Santa Cruz Island); Point Vicente SMR and Abalone Cove SMCA (Palos Verdes); and Cabrillo SMR, South La Jolla SMR/SMCA, and Matlahuayl SMR (San Diego). California least tern diet composition data were collected inside and outside of MPAs including Bolsa Chica Basin SMCA, Bolsa Bay SMCA, Batiquitos Lagoon SMCA, and Tijuana River Mouth SMCA. The long-term objectives of our monitoring are to 1) document how seabirds are using coastal and nearshore habitats in relation to a sample of newly established MPAs within the SCSR and 2) develop seabirds as tools to investigate changes in fish and invertebrate populations inside and outside of SCSR MPAs. Data presented here focus on baseline population size, for both roosting and breeding seabirds. Dataset harbor seal DataCite Metadata Store (German National Library of Science and Technology) Chica ENVELOPE(-57.050,-57.050,-63.350,-63.350) Gull Island ENVELOPE(-55.315,-55.315,49.533,49.533) |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
English |
topic |
South Coast Baseline Characterization of Nearshore and Estuarine SeabirdsSeabird Population Transect Surveys2012 to 2013 Ecological data Kelp and Shallow Rock Ecosystems 0-30 meters Mid-Depth Rocky Ecosystems 30-100 meters Nearshore Pelagic Ecosystems >30m Rocky Intertidal Ecosystems Soft-Bottom Subtidal Ecosystems 0-100 meters seabird ecology seabird monitoring breeding population roost utilization brandt's cormorant pelagic cormorant double-crested cormorant western gull pigeon guillemot brown pelican black oystercatcher california sea lion harbor seal |
spellingShingle |
South Coast Baseline Characterization of Nearshore and Estuarine SeabirdsSeabird Population Transect Surveys2012 to 2013 Ecological data Kelp and Shallow Rock Ecosystems 0-30 meters Mid-Depth Rocky Ecosystems 30-100 meters Nearshore Pelagic Ecosystems >30m Rocky Intertidal Ecosystems Soft-Bottom Subtidal Ecosystems 0-100 meters seabird ecology seabird monitoring breeding population roost utilization brandt's cormorant pelagic cormorant double-crested cormorant western gull pigeon guillemot brown pelican black oystercatcher california sea lion harbor seal Howar, Julie Seabird Population Transect Surveys |
topic_facet |
South Coast Baseline Characterization of Nearshore and Estuarine SeabirdsSeabird Population Transect Surveys2012 to 2013 Ecological data Kelp and Shallow Rock Ecosystems 0-30 meters Mid-Depth Rocky Ecosystems 30-100 meters Nearshore Pelagic Ecosystems >30m Rocky Intertidal Ecosystems Soft-Bottom Subtidal Ecosystems 0-100 meters seabird ecology seabird monitoring breeding population roost utilization brandt's cormorant pelagic cormorant double-crested cormorant western gull pigeon guillemot brown pelican black oystercatcher california sea lion harbor seal |
description |
Seabirds are long-lived, upper trophic level predators that are integral components of marine ecosystems. Marine protected areas (MPAs) can provide both direct and indirect benefits to seabirds. Direct benefits involve reducing the direct interactions seabirds have with humans such as from fisheries and recreational activities. Indirect benefits involve reducing competition with humans for prey resources. As the abundance of prey increases within and adjacent to MPAs, seabirds may benefit as more abundant prey resources lead to increases in their productivity and population sizes. We monitored four coastally breeding seabirds that feed largely on juvenile and other small fishes in nearshore habitats (Brandt’s cormorant, pelagic cormorant, western gull, and California least tern) and one shorebird that feeds on rocky intertidal invertebrates (black oystercatcher). We collected data on baseline population size, productivity, foraging rates, and rates of human-caused disturbance inside and outside of three MPA clusters: Gull Island SMCA, Painted Cave SMCA and Scorpion SMR (Santa Cruz Island); Point Vicente SMR and Abalone Cove SMCA (Palos Verdes); and Cabrillo SMR, South La Jolla SMR/SMCA, and Matlahuayl SMR (San Diego). California least tern diet composition data were collected inside and outside of MPAs including Bolsa Chica Basin SMCA, Bolsa Bay SMCA, Batiquitos Lagoon SMCA, and Tijuana River Mouth SMCA. The long-term objectives of our monitoring are to 1) document how seabirds are using coastal and nearshore habitats in relation to a sample of newly established MPAs within the SCSR and 2) develop seabirds as tools to investigate changes in fish and invertebrate populations inside and outside of SCSR MPAs. Data presented here focus on baseline population size, for both roosting and breeding seabirds. |
format |
Dataset |
author |
Howar, Julie |
author_facet |
Howar, Julie |
author_sort |
Howar, Julie |
title |
Seabird Population Transect Surveys |
title_short |
Seabird Population Transect Surveys |
title_full |
Seabird Population Transect Surveys |
title_fullStr |
Seabird Population Transect Surveys |
title_full_unstemmed |
Seabird Population Transect Surveys |
title_sort |
seabird population transect surveys |
publisher |
KNB Data Repository |
publishDate |
2017 |
url |
https://dx.doi.org/10.5063/f18g8hv6 https://knb.ecoinformatics.org/view/doi:10.5063/F18G8HV6 |
long_lat |
ENVELOPE(-57.050,-57.050,-63.350,-63.350) ENVELOPE(-55.315,-55.315,49.533,49.533) |
geographic |
Chica Gull Island |
geographic_facet |
Chica Gull Island |
genre |
harbor seal |
genre_facet |
harbor seal |
op_doi |
https://doi.org/10.5063/f18g8hv6 |
_version_ |
1766022894821834752 |