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Faunal Dynamics in Response to Quate...

Smith, Michael R.

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Faunal Dynamics in Response to Quaternary Climate Cycling: A Physiographic Regional Approach.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Faunal Dynamics in Response to Quaternary Climate Cycling: A Physiographic Regional Approach./
作者:	Smith, Michael R.
出版者:	Ann Arbor : ProQuest Dissertations & Theses, : 2017,
面頁冊數:	157 p.
附註:	Source: Dissertation Abstracts International, Volume: 78-12(E), Section: B.
Contained By:	Dissertation Abstracts International78-12B(E).
標題:	Paleontology. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=10599311
ISBN:	9780355085389

Faunal Dynamics in Response to Quaternary Climate Cycling: A Physiographic Regional Approach.
Smith, Michael R.

Faunal Dynamics in Response to Quaternary Climate Cycling: A Physiographic Regional Approach. - Ann Arbor : ProQuest Dissertations & Theses, 2017 - 157 p.

Source: Dissertation Abstracts International, Volume: 78-12(E), Section: B.

Thesis (Ph.D.)--Indiana University, 2017.

Projected global warming has heightened interest in biologic response to climate change. The Pleistocene epoch, with its cycles of alternating cold glacial periods and warm interglacial periods represents an ideal case study for examining how faunas have responded to climate change. Fossil mammals in the Pleistocene are abundant and aare extant or have closely related living relatives.

ISBN: 9780355085389Subjects--Topical Terms:

518862
Paleontology.

Faunal Dynamics in Response to Quaternary Climate Cycling: A Physiographic Regional Approach.
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500 $a Source: Dissertation Abstracts International, Volume: 78-12(E), Section: B.
500 $a Adviser: David Polly.
502 $a Thesis (Ph.D.)--Indiana University, 2017.
520 $a Projected global warming has heightened interest in biologic response to climate change. The Pleistocene epoch, with its cycles of alternating cold glacial periods and warm interglacial periods represents an ideal case study for examining how faunas have responded to climate change. Fossil mammals in the Pleistocene are abundant and aare extant or have closely related living relatives.
520 $a In this dissertation, I re-evaluated a local Pleistocene fauna and its climatic implications then assessed how climate and physiographic regions (here defined as regional variation in topography, elevation, and hydrology) contribute to defining differences in mammal faunas in space and through time. To test whether physiographic regions influence the composition of mammal faunas, I analyzed species endemism, species richness, and beta diversity for both living species and for fossil occurrences drawn from a large compiled database for the last 130,000 years encompassing five climate cycles. I then compared those results with random, equal area subsets derived from latitudinal/longitudinal quadrats. As a proof of concept, I also performed a cluster analysis on a combination of physiographic regional and temporal endemics to elucidate potential individualistic or community style responses to climate change.
520 $a The local fauna is indicative of a warm, interglacial community. Results for modern mammals indicate strong physiographic regional differences in endemism and beta diversity. That trend becomes lost within fossil mammalian fauna, likely due to preservation bias, but I maintain that given the observations in the modern the validity of physiographic regions remains strong. That validity is supported by the proof of concept experiment, which teased out complex faunal changes at the regional scale matching predictions for individualistic responses during glacial cycles with underlying small community responses throughout. Physiographic regions are a useful and biologically valid method for solving scaling issues for Pleistocene biogeographic research.
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