Predicting the Distribution of the Extinct Sea Bird Hesperornis
In the Late Cretaceous, North America was divided by a shallow epicontinental sea known as the Western Interior Seaway. Native life included various marine reptiles, fish, ammonites, and seabirds such as Hesperornis . Previous research has applied ecological niche modeling to discuss competition amo...
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ftforthaysstuniv:oai:scholars.fhsu.edu:sacad-1059 2023-08-27T04:07:52+02:00 Predicting the Distribution of the Extinct Sea Bird Hesperornis Chapman, Blake 2019-04-03T07:00:00Z application/pdf https://scholars.fhsu.edu/sacad/vol2019/iss2019/3 https://doi.org/10.58809/PJNK9563 https://scholars.fhsu.edu/context/sacad/article/1059/viewcontent/Emp_Grad_1_Chapman.pdf unknown FHSU Scholars Repository https://scholars.fhsu.edu/sacad/vol2019/iss2019/3 doi:10.58809/PJNK9563 https://scholars.fhsu.edu/context/sacad/article/1059/viewcontent/Emp_Grad_1_Chapman.pdf Copyright the Author(s) SACAD: John Heinrichs Scholarly and Creative Activity Days text 2019 ftforthaysstuniv https://doi.org/10.58809/PJNK9563 2023-08-06T17:12:27Z In the Late Cretaceous, North America was divided by a shallow epicontinental sea known as the Western Interior Seaway. Native life included various marine reptiles, fish, ammonites, and seabirds such as Hesperornis . Previous research has applied ecological niche modeling to discuss competition among large vertebrates in the seaway (mosasaurs and predatory fish) but ignored small vertebrates. The present study combined localities of Hesperornis fossils with sea surface temperature estimates to characterize the distribution of Hesperornis in the upper Great Plains. Temperature interpolation in ArcGIS and niche analysis in Maxent predicted that Hesperornis preferred warmer marine waters (highest suitability values) and may support the hypothesis that Hesperornis migrated between the paleo Arctic and the lower Western Interior Seaway. Most of the study area, however, is homogenous in suitability, indicating the results are largely inconclusive. Additional ecosystem variables (e.g., biological interactions and rock type) will be applied in future analyses to describe the distribution of Hesperornis Text Arctic Paleo-Arctic FHSU Scholars Repository (Fort Hays State University) Arctic John Heinrichs Scholarly & Creative Activities Day |
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FHSU Scholars Repository (Fort Hays State University) |
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ftforthaysstuniv |
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description |
In the Late Cretaceous, North America was divided by a shallow epicontinental sea known as the Western Interior Seaway. Native life included various marine reptiles, fish, ammonites, and seabirds such as Hesperornis . Previous research has applied ecological niche modeling to discuss competition among large vertebrates in the seaway (mosasaurs and predatory fish) but ignored small vertebrates. The present study combined localities of Hesperornis fossils with sea surface temperature estimates to characterize the distribution of Hesperornis in the upper Great Plains. Temperature interpolation in ArcGIS and niche analysis in Maxent predicted that Hesperornis preferred warmer marine waters (highest suitability values) and may support the hypothesis that Hesperornis migrated between the paleo Arctic and the lower Western Interior Seaway. Most of the study area, however, is homogenous in suitability, indicating the results are largely inconclusive. Additional ecosystem variables (e.g., biological interactions and rock type) will be applied in future analyses to describe the distribution of Hesperornis |
format |
Text |
author |
Chapman, Blake |
spellingShingle |
Chapman, Blake Predicting the Distribution of the Extinct Sea Bird Hesperornis |
author_facet |
Chapman, Blake |
author_sort |
Chapman, Blake |
title |
Predicting the Distribution of the Extinct Sea Bird Hesperornis |
title_short |
Predicting the Distribution of the Extinct Sea Bird Hesperornis |
title_full |
Predicting the Distribution of the Extinct Sea Bird Hesperornis |
title_fullStr |
Predicting the Distribution of the Extinct Sea Bird Hesperornis |
title_full_unstemmed |
Predicting the Distribution of the Extinct Sea Bird Hesperornis |
title_sort |
predicting the distribution of the extinct sea bird hesperornis |
publisher |
FHSU Scholars Repository |
publishDate |
2019 |
url |
https://scholars.fhsu.edu/sacad/vol2019/iss2019/3 https://doi.org/10.58809/PJNK9563 https://scholars.fhsu.edu/context/sacad/article/1059/viewcontent/Emp_Grad_1_Chapman.pdf |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Paleo-Arctic |
genre_facet |
Arctic Paleo-Arctic |
op_source |
SACAD: John Heinrichs Scholarly and Creative Activity Days |
op_relation |
https://scholars.fhsu.edu/sacad/vol2019/iss2019/3 doi:10.58809/PJNK9563 https://scholars.fhsu.edu/context/sacad/article/1059/viewcontent/Emp_Grad_1_Chapman.pdf |
op_rights |
Copyright the Author(s) |
op_doi |
https://doi.org/10.58809/PJNK9563 |
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John Heinrichs Scholarly & Creative Activities Day |
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