{
"@context": "http://schema.org/", "@type": "WebPage", "additionalType": "Project", "url": "https://www.usgs.gov/centers/werc/science/assessing-mammalian-predator-control-protect-endangered-birds-haleakala", "headline": "Assessing Mammalian Predator Control to Protect Endangered Birds at Haleakal\u0101 National Park", "datePublished": "January 6, 2020", "author": [ { "@type": "Person", "name": "Josh Adams", "url": "https://www.usgs.gov/staff-profiles/josh-adams", "identifier": { "@type": "PropertyValue", "propertyID": "orcid", "value": "0000-0003-3056-925X" } }, { "@type": "Person", "name": "Emily (Emma) Kelsey", "url": "https://www.usgs.gov/staff-profiles/emily-emma-kelsey", "identifier": { "@type": "PropertyValue", "propertyID": "orcid", "value": "0000-0002-0107-3530" } } ], "description": [ { "@type": "TextObject", "text": "Banner photos: The crater of Haleakal\u0101 volcano in Haleakala National Park, Maui Hawai\u2019i; The crater rim in Haleakal\u0101. This rocky landscape is the dominant nesting habitat for 'Ua'u within Haleakal\u0101 National Park. Photos by E. Kelsey, USGS" }, { "@type": "TextObject", "text": "Predation and habitat degradation by non-native mammal species are principal terrestrial threats to endangered \u02bbua\u02bbu (Hawaiian Petrel, Pterodroma sandwichensis) and n\u0113n\u0113 (Branta sandvicensis). The invasive mammal species found in the park that prey on nesting birds and eggs include feral cat (Felis catus), Indian mongoose (Herpestes javanicus), black rat (Rattus rattus), Norway rat (Rattus norvegicus), Polynesian rat (Rattus exulans), and house mouse (Mus musculus), with cats, mongoose, and black rats being the most commonly observed predators1. High-priority recovery actions for \u02bbua\u02bbu include predator control, habitat restoration, and population monitoring. In collaboration with Haleakal\u0101 National Park, USGS evaluated seasonal, annual, and environmental patterns and factors that influence small mammal trap events throughout a 15 year period (2000\u20132014)." }, { "@type": "TextObject", "text": "Collaborator" }, { "@type": "TextObject", "text": "Haleakal\u0101 National Park Endangered Wildlife Management" }, { "@type": "TextObject", "text": "Return to the Seabird Health and Adaptive Management home page" }, { "@type": "TextObject", "text": "USGS researchers assessed trends in non-native mammalian predator trapping methods designed to protect endangered \u02bbua\u02bbu and n\u0113n\u0113 at Haleakal\u0101 National Park, Hawai\u02bbi." }, { "@type": "TextObject", "text": "These analyses will help the Haleakal\u0101 National Park Endangered Wildlife Management staff evaluate existing methods for predator control and inform future predator control efforts. The trends outlined by this project inform park personnel to focus trapping efforts in the most effective time periods and locations to protect \u02bbua\u02bbu and n\u0113n\u0113. The results reveal gaps where additional study could be implemented to improve predator trap efficiency, i.e., reduce untriggered trap events." }, { "@type": "TextObject", "text": "Kelsey, E.C., Adams, J., Czapanskiy, M.F., Felis, J.J., Yee, J.L., Kaholoaa R.L., and Bailey, C.N., 2019, Trends in mammalian predator control trapping events intended to protect ground-nesting, endangered birds at Haleakal\u0101 National Park, Hawai\u02bbi: 2000\u201314: U.S. Geological Survey Open-File Report 2019\u20131122, 27 p., https://doi.org/10.3133/ofr20191122" }, { "@type": "TextObject", "text": "Products" }, { "@type": "TextObject", "text": "Maps of Trapping Locations and Trapping Effort" }, { "@type": "TextObject", "text": "[1] Kaholoaa, R. L., Bailey, C.N., Kekiwi, E.K., Purdy, K.K., Judge, S.W., Tamayose, J.A., and Schwarz, C.J., 2019, Predator control management plan Haleakal\u0101 National Park: Natural Resource Report NPS/HALE/NRR\u20142019/2005, National Park Service, Fort Collins, Colo." }, { "@type": "TextObject", "text": "The results, published in a 2019 USGS Open-File Report, showed temporal and spatial trends in trap events within Haleakal\u0101 National Park during 2000\u201314. The probability of predator capture was influenced by \u02bbua\u02bbu breeding season (off-season, pre-laying, incubation or nestling), month, year, and seasonal rainfall, with the highest probabilities of capture during the \u02bbua\u02bbu nestling period (July\u2013October) and when rainfall was low. Rats were the most frequently caught predator in the traps and cats were the least frequently caught. The results indicated that vegetation cover and elevation were also factors affecting the probability of predator capture. Researchers found that bait was often taken without the trap being triggered." } ], "funder": { "@type": "Organization", "name": "Western Ecological Research Center (WERC)", "url": "https://www.usgs.gov/centers/werc" }, "about": [ { "@type": "Thing", "name": "Environmental Health" }, { "@type": "Thing", "name": "Climate Change" }, { "@type": "Thing", "name": "Migratory Birds" }, { "@type": "Thing", "name": "Biology" }, { "@type": "Thing", "name": "Ecosystems" }, { "@type": "Thing", "name": "Methods and Analysis" }, { "@type": "Thing", "name": "Information Systems" }, { "@type": "Thing", "name": "Water" }, { "@type": "Thing", "name": "Science Technology" }, { "@type": "Thing", "name": "Invasive Species" }, { "@type": "Thing", "name": "Threatened and Endangered Species" }, { "@type": "Thing", "name": "Threats" }, { "@type": "Thing", "name": "Wildlife & Terrestrial Species" }, { "@type": "Thing", "name": "Geology" }, { "@type": "Thing", "name": "Threatened and Endangered" }, { "@type": "Thing", "name": "Invasive Animals" }, { "@type": "Thing", "name": "Energy" }, { "@type": "Thing", "name": "Wildlife and Terrestrial Species" } ]
}