Patrick Hart
Geophysicist Emeritus with the USGS Pacific Coastal and Marine Science Center
Science and Products
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The effect of isolation, fragmentation, and population bottlenecks on song structure of a Hawaiian honeycreeper The effect of isolation, fragmentation, and population bottlenecks on song structure of a Hawaiian honeycreeper
Little is known about how important social behaviors such as song vary within and among populations for any of the endemic Hawaiian honeycreepers. Habitat loss and non‐native diseases (e.g., avian malaria) have resulted in isolation and fragmentation of Hawaiian honeycreepers within primarily high elevation forests. In this study, we examined how isolation of Hawai'i ‘amakihi...
Authors
Joshua Pang-Ching, Kristina Paxton, Eben H. Paxton, Adam Pack, Patrick Hart
High-resolution seismic imaging of depositional characteristics at gas hydrate research sites in the Gulf of Mexico High-resolution seismic imaging of depositional characteristics at gas hydrate research sites in the Gulf of Mexico
No abstract available.
Authors
Seth Haines, Timothy Collett, Patrick Hart, B. Shedd, P. Weimer, M. Frye, R. Boswell
High-resolution seismic characterization of the gas and gas hydrate system at Green Canyon 955, Gulf of Mexico, USA High-resolution seismic characterization of the gas and gas hydrate system at Green Canyon 955, Gulf of Mexico, USA
The Pliocene and Pleistocene sediments at lease block Green Canyon 955 (GC955) in the Gulf of Mexico include sand-rich strata with high saturations of gas hydrate; these gas hydrate accumulations and the associated geology have been characterized over the past decade using conventional industry three-dimensional (3D) seismic data and dedicated logging-while-drilling (LWD) borehole data...
Authors
Seth Haines, Patrick Hart, Timothy Collett, William Shedd, Matthew Frye, Paul Weimer, Ray Boswell
Biogeographical variation of plumage coloration in the sexually dichromatic Hawai‘i ‘Amakihi (Chlorodrepanis virens) Biogeographical variation of plumage coloration in the sexually dichromatic Hawai‘i ‘Amakihi (Chlorodrepanis virens)
Plumage coloration in birds can be of major importance to mate selection, social signaling, or predator avoidance. Variations in plumage coloration related to sex, age class, or seasons have been widely studied, but the effect of other factors such as climate is less known. In this study, we examine how carotenoid-based plumage coloration and sexual dichromatism of the Hawai‘i ‘Amakihi
Authors
Jacqueline Gaudioso-Levita, Patrick Hart, Dennis Lapointe, Anne Veillet, Esther Sebastian-Gonzalez
Pacific Island landbird monitoring report, Hawaiʻi Volcanoes National Park, 2015-2016: Tract groups 1 and 2 Pacific Island landbird monitoring report, Hawaiʻi Volcanoes National Park, 2015-2016: Tract groups 1 and 2
Hawaiʻi Volcanoes National Park (HAVO) was surveyed for landbirds and landbird habitat from February through April 2015 and February through April 2016. This information provides the second datum in the time-series of Pacific Island Network (PACN) monitoring for long-term trends in landbird distribution, density, and abundance. Initial PACN surveys were conducted in 2010 and are repeated...
Authors
Seth Judge, Richard Camp, Daniel Sedgwick, Carine Squibb, Patrick Hart
Changes in vocal repertoire of the Hawaiian crow, Corvus hawaiiensis,from past wild to current captive populations Changes in vocal repertoire of the Hawaiian crow, Corvus hawaiiensis,from past wild to current captive populations
For most avian species, social behaviour is critically important for survival and reproductive success. Many social behaviours in birds are culturally transmitted, and as bird populations decline across the globe, important elements of these behaviours may be lost. The Hawaiian crow or 'alalā, Corvus hawaiiensis, is a socially complex avian species that is currently extinct in the wild...
Authors
Ann Tanimoto, Patrick Hart, Adam Pack, Richard Switzwer, Paul Banko, Donna Ball, Esther Sebastian-Gonzalez, Lisa Komarczyk, Miyako Warrington
Science and Products
Filter Total Items: 20
No Result Found
Filter Total Items: 68
The effect of isolation, fragmentation, and population bottlenecks on song structure of a Hawaiian honeycreeper The effect of isolation, fragmentation, and population bottlenecks on song structure of a Hawaiian honeycreeper
Little is known about how important social behaviors such as song vary within and among populations for any of the endemic Hawaiian honeycreepers. Habitat loss and non‐native diseases (e.g., avian malaria) have resulted in isolation and fragmentation of Hawaiian honeycreepers within primarily high elevation forests. In this study, we examined how isolation of Hawai'i ‘amakihi...
Authors
Joshua Pang-Ching, Kristina Paxton, Eben H. Paxton, Adam Pack, Patrick Hart
High-resolution seismic imaging of depositional characteristics at gas hydrate research sites in the Gulf of Mexico High-resolution seismic imaging of depositional characteristics at gas hydrate research sites in the Gulf of Mexico
No abstract available.
Authors
Seth Haines, Timothy Collett, Patrick Hart, B. Shedd, P. Weimer, M. Frye, R. Boswell
High-resolution seismic characterization of the gas and gas hydrate system at Green Canyon 955, Gulf of Mexico, USA High-resolution seismic characterization of the gas and gas hydrate system at Green Canyon 955, Gulf of Mexico, USA
The Pliocene and Pleistocene sediments at lease block Green Canyon 955 (GC955) in the Gulf of Mexico include sand-rich strata with high saturations of gas hydrate; these gas hydrate accumulations and the associated geology have been characterized over the past decade using conventional industry three-dimensional (3D) seismic data and dedicated logging-while-drilling (LWD) borehole data...
Authors
Seth Haines, Patrick Hart, Timothy Collett, William Shedd, Matthew Frye, Paul Weimer, Ray Boswell
Biogeographical variation of plumage coloration in the sexually dichromatic Hawai‘i ‘Amakihi (Chlorodrepanis virens) Biogeographical variation of plumage coloration in the sexually dichromatic Hawai‘i ‘Amakihi (Chlorodrepanis virens)
Plumage coloration in birds can be of major importance to mate selection, social signaling, or predator avoidance. Variations in plumage coloration related to sex, age class, or seasons have been widely studied, but the effect of other factors such as climate is less known. In this study, we examine how carotenoid-based plumage coloration and sexual dichromatism of the Hawai‘i ‘Amakihi
Authors
Jacqueline Gaudioso-Levita, Patrick Hart, Dennis Lapointe, Anne Veillet, Esther Sebastian-Gonzalez
Pacific Island landbird monitoring report, Hawaiʻi Volcanoes National Park, 2015-2016: Tract groups 1 and 2 Pacific Island landbird monitoring report, Hawaiʻi Volcanoes National Park, 2015-2016: Tract groups 1 and 2
Hawaiʻi Volcanoes National Park (HAVO) was surveyed for landbirds and landbird habitat from February through April 2015 and February through April 2016. This information provides the second datum in the time-series of Pacific Island Network (PACN) monitoring for long-term trends in landbird distribution, density, and abundance. Initial PACN surveys were conducted in 2010 and are repeated...
Authors
Seth Judge, Richard Camp, Daniel Sedgwick, Carine Squibb, Patrick Hart
Changes in vocal repertoire of the Hawaiian crow, Corvus hawaiiensis,from past wild to current captive populations Changes in vocal repertoire of the Hawaiian crow, Corvus hawaiiensis,from past wild to current captive populations
For most avian species, social behaviour is critically important for survival and reproductive success. Many social behaviours in birds are culturally transmitted, and as bird populations decline across the globe, important elements of these behaviours may be lost. The Hawaiian crow or 'alalā, Corvus hawaiiensis, is a socially complex avian species that is currently extinct in the wild...
Authors
Ann Tanimoto, Patrick Hart, Adam Pack, Richard Switzwer, Paul Banko, Donna Ball, Esther Sebastian-Gonzalez, Lisa Komarczyk, Miyako Warrington