Filters: partyWithName: Ecosystems (X) > partyWithName: Western Ecological Research Center (X) > partyWithName: Emily (Emma) C. Kelsey (X)
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We have incorporated the Hawaiian language spellings of place names however, software limitations for metadata files did not allow for inclusion of the appropriate diacritical markings. Among important seabird breeding sites in the main Hawaiian Islands (MHI), Lehua Island off Niʻihau, and Moku Manu Islets off O'ahu support diverse and abundant seabird breeding populations. Both offshore islands provide excellent nesting habitat for surface nesting boobies (Sula spp.) and Moku Manu also supports nesting habitat for relatively large breeding populations of Sooty Tern (Onychoprion fuscatus) and Brown Noddy (Anous stolidus). Additionally, Ulupa'u Crater, near Moku Manu on O'ahu, is one of only a few main island sites...
This data relase is a product of Atlas of Breeding Seabirds of the Main Hawaiian Islands Kīlauea Point National Wildlife Refuge (KPNWR) is an important seabird breeding site located at the northeastern tip of Kauaʻi in the main Hawaiian Islands (MHI). Despite the regional significance of KPNWR as one of the most important breeding sites for Red-tailed Tropicbirds (Phaethon rubricauda), Red-footed Boobies (Sula sula), and Wedge-tailed Shearwaters (Ardenna pacifica) in MHI, robust and accurate population surveys have not been consistently conducted and recent information is lacking. In this study, we completed comprehensive population surveys for these three species during the 2019 breeding season. Using direct censusing...
This database is a compilation of marine mammal and seabird information collected along the Pacific coast of the United States and U.S. territories in the Pacific from surveys that were solicited among regional research communities and persons. Information from standardized surveys was gathered from 2015 to 2018 and includes programs and researchers who collected information regarding seabirds since 1960. These data support the following publication: Adams, J., Lafferty, K.D., Kelsey, E.C., and Johnston, C.A. 2019. Synopsis of Research Programs that can Provide Baseline and Monitoring Information for Offshore Energy Activities in the Pacific Region: Seabird and Marine Mammal Surveys in the Pacific Region. U.S....
We used a stratified-random sampling approach to estimate the total abundance of Wedge-tailed Shearwater (Ardenna pacifica) nest sites across Kīlauea Point National Wildlife Refuge (KPNWR), Kauaʻi, during 1-7 July 2019. We first identified strata as unique geographic areas of the refuge to account for potential differences in nesting habitat and non-uniform nest site clustering. We then sub-divided strata where we expected high, low, minimal, or no nest site abundance. These distinctions were based on knowledge of shearwater nesting distribution gained while performing extensive ground-searching for tropicbirds across the entire refuge in April and May 2019. We delineated strata boundaries using recent satellite...
Categories: Data;
Types: Downloadable,
Map Service,
OGC WFS Layer,
OGC WMS Layer,
Shapefile;
Tags: Kauai,
USGS-EMA-LOW-SB SMC: Seabirds,
animal and plant census,
biota,
plot sampling
During 13-18 May, 2019, we censused red-footed boobies (Sula sula) at Kīlauea Point National Wildlife Refuge (KPNWR), Kauaʻi. To evaluate ground-based visual counts and assess variability among methods, we employed photographic techniques to count nesting red-footed boobies at KPNWR in three distinct sub-colony areas: Crater Hill East, Crater Hill Interior, and Crater Hill West (see associated data series report for delineation of sub-colony areas). For ground-based photos, we used a Sony a7rii camera (42 megapixel full-frame) equipped with a Sony 100-400mm F4.5-5.6G lens to allow sufficient resolution to count nests and birds. We achieved pixel resolutions (as a function of camera resolution, focal length, and...
Categories: Data;
Tags: Kauai,
USGS-EMA-LOW-SB SMC: Seabirds,
aerial photography,
animal and plant census,
biota
Predation and habitat degradation by non-native species are principal terrestrial threats to the federally endangered Hawaiian Petrel (ʻuaʻu, Pterodroma sandwichensis) and Hawaiian Goose (nēnē, Branta sandvicensis) within Haleakalā National Park (HALE), Maui, Hawaiʻi. Since 1981, HALE has maintained a network of live-traps to control invasive mammalian predators and protect these endangered birds. To continue evaluations of trapping efficiency in HALE, we analyzed 2000 - 2014 trap events. Trap events were divided up into six event types classified into three event categories: no event, other event [bait lost, or trap triggered], or predator event [rat, cat, or mongoose caught]. Event type analysis was divided up...
Categories: Data;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: Hawaii,
Maui,
USGS Science Data Catalog (SDC),
Wildlife Biology,
biota,
During 8-11 April, 13-18 May, and 1-7 July 2019, we censused Red-tailed Tropicbird (Phaethon rubricauda) and White-tailed Tropicbird (P. lepturus) nests in Kīlauea Point National Wildlife Refuge (KPNWR), Kauaʻi, by searching all foot-accessible areas and by searching all cliffs and islets with spotting scopes from remote vantage points. We censused over the course of three visits to account for prolonged and asynchronous nesting. For ground searching, we used previous nest census results, recommendations from the previous Refuge biologist, and knowledge of tropicbird nesting habitat, to focus searches in areas where nesting was likely: along cliff edges and steep slopes, particularly at the base of ironwood trees...
This data release is a product of Atlas of Breeding Seabirds of the Main Hawaiian Islands. Specific results and details about methods and additional information useful for interpreting these data can be found in the data report: Adams, J., Kelsey, E.C., Stenske, J., and Felis, J.J., 2022, Aerial counts for surface-nesting seabirds at Lehua Island and Moku Manu Islet and Ulupaʻu Crater, Oʻahu, in 2019: Data Report 1161, 20 p., https://doi.org/10.3133/dr1161. We have incorporated the Hawaiian language spellings of place names however, software limitations for metadata files did not allow for inclusion of the appropriate diacritical markings. Among important seabird breeding sites in the main Hawaiian Islands (MHI),...
We have incorporated the Hawaiian language spellings of place names however, software limitations for metadata files did not allow for inclusion of the appropriate diacritical markings. We took oblique aerial photographs of Lehua during the late morning of 13 May from a H-65 Dolphin helicopter with the door open to provide the best viewing conditions. During the late morning on 16 May 2019, we worked with U.S. Coast Guard Auxiliary on-board a Piper Saratoga fixed-wing aircraft (single-engine, low-wing) to photograph the Red-footed Booby colony in Ulupa'u Crater and the entire surface of Moku Manu taken through a tinted, rear Plexiglas window. We used a Canon 5DSr camera (51-megapixel full frame) equipped with a...
Categories: Data;
Tags: Honolulu County,
Kauai County,
aerial photography,
animal and plant census,
biota,
During 8-11 April, 13-18 May, and 1-7 July 2019, we censused Red-tailed (Phaethon rubricauda) and White-tailed (P. lepturus) tropicbird nests in Kīlauea Point National Wildlife Refuge (KPNWR), Kauaʻi, by searching all foot-accessible areas and by searching all cliffs and islets with spotting scopes from remote vantage points. We censused over the course of three visits to account for prolonged and asynchronous nesting. For ground searching, we used previous nest census results, recommendations from the previous Refuge biologist, and our knowledge of tropicbird nesting habitat, to focus searches in areas where nesting was likely: along cliff edges and steep slopes, particularly at the base of ironwood trees (Casuarina...
Categories: Data;
Types: Downloadable,
Map Service,
OGC WFS Layer,
OGC WMS Layer,
Shapefile;
Tags: Kauai,
USGS-EMA-LOW-SB SMC: Seabirds,
animal and plant census,
biota
We used a stratified-random sampling approach to estimate the total abundance of Wedge-tailed Shearwater (Ardenna pacifica) nest sites across Kīlauea Point National Wildlife Refuge (KPNWR), Kauaʻi, in 2019. To estimate stratum-specific nest site abundance, we generated randomly located, non-overlapping circular plots within several sampling strata. We set plot radius to 5 m in most strata, except for some portions of Kīlauea Point where a 3-m radius was used to accommodate narrow strips of habitat. We generated enough plots to survey 10 percent of total stratum area where we expected high nest site abundance, and 5 percent of stratum area where expected nest site abundance was low or minimal. This data table contains...
Categories: Data;
Tags: Kauai,
USGS-EMA-LOW-SB SMC: Seabirds,
animal and plant census,
biota,
plot sampling
During 13-18 May, 2019, we censused Red-footed Boobies (Sula sula) at Kīlauea Point National Wildlife Refuge (KPNWR), Kauaʻi. To evaluate ground-based visual counts and assess variability among methods, we employed photographic techniques to count nesting Red-footed Boobies at KPNWR in three distinct sub-colony areas: Crater Hill East, Crater Hill Interior, and Crater Hill West (see associated data series report for delineation of sub-colony areas). For ground-based photos, we used a Sony a7rii camera (42 megapixel full-frame) equipped with a Sony 100-400 mm F4.5-5.6G lens to allow sufficient resolution to count nests and birds. We achieved pixel resolutions (as a function of camera resolution, focal length, and...
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