Paleobiogeography

Latitudinal migration of calcareous nannofossil Micula murus in the Maastrichtian: implications for global climate change

by Nicolas Thibault

Thibault, N., Gardin, S. and Galbrun, B., "published in 'Geology, 2010, v. 38, p. 203-206'"

Micula murus is one of the main calcareous nannofossil b iostratigrapic markers of Tethyan and Intermediate provinces... more Micula murus is one of the main calcareous nannofossil b iostratigrapic markers of Tethyan and Intermediate provinces in the upper Maastrichtian (uppermost Cretaceous). A review of its first occurrence at 14 deep-sea sites and sections shows that it is time transgressive from the Tropical Realm of the Atlantic and Pacific Oceans to the intermediate latitudes of the North Atlantic, South Atlantic, Indian Ocean and the northern Tethys. M. murus remained confined to the Tropical Realm for ~1.2 m.y. in the early late Maastrichtian, thus supporting high-latitudinal thermal gradients. It subsequently spread out in the late Maastrichtian to temperate latitudes and to the Tethys in coincidence with the onset of a thermohaline circulation change at ~67.5 Ma, suggesting a major change in surface-water circulation and interocean communications.

Morphological trends in the fossil pollen of Decodon and the paleobiogeographic history of the genus

by Fridgeir Grimsson

2012
Fridgeir Grimsson, David K. Ferguson, Reinhard Zetter
International Journal of Plant Sciences

Zooarchaeological Evidence of Prairie Taxa in Central Missouri during the Mid-Holocene

by Steve Wolverton

Wolverton 2002

Previous studies report that remains of prairie taxa are common in western Missouri archaeological sites. There is no... more Previous studies report that remains of prairie taxa are common in western Missouri archaeological sites. There is no reported evidence of prairie taxa, such as Bos bison, from sites within the northern Ozark Highlands of Missouri. New data indicate that prairie taxa inhabited the area during the warm and dry mid-Holocene (8500–5000 14C yr B.P.). Evidence suggests prairie taxa were farther east and south than previously documented in central Missouri and underscores the importance of biogeographic data in studies of prehistoric environments.

The Late Prehistoric–Early Historic Game Sink in the Northwestern United States

by Steve Wolverton

Lyman & Wolverton 2002

Historical data provide valuable information on ecosystem structure, function, and processes. The number of big game... more Historical data provide valuable information on ecosystem structure, function, and processes. The number of big game killed by the Corps of Discovery in 1805–1806 and recorded by Lewis and Clark suggests that ungulates were abundant in central and eastern Montana and rare in western Montana, central Idaho, and southeastern Washington during the early nineteenth century. Paleoecologists Paul Martin and Chris Szuter conclude that this difference was a function of human predation. They support their conclusion that ungulates would have been abundant in southeastern Washington had humans not hunted them by arguing that the nineteenth-century livestock industry was successful without supplemental feeding. The livestock industry was, however, not consistently successful until artificial feeding was initiated. Archaeological data from eastern Washington indicate that ungulates have been taken by human hunters more frequently than small-mammal prey throughout the last 10,000 years and that ungulates decreased relative to small mammals coincident with changes in climate. Bison ( Bison bison) and elk (Cervus canadensis) were present in eastern Washington throughout the Holocene, but bison were abundant there only during a cooler and moister period; elk have been abundant only in the twentieth century, subsequent to transplants and the extermination of predators. Geographic variation in the abundance of bison across Montana, Idaho, and eastern Washington has been influenced by human predation but has also been influenced by biogeographic history, habitat differences, and climatic change.

Ethnobiology as a Bridge between Science and Ethics: An Applied Paleozoological Perspective

by Steve Wolverton

In Ethnobiology. Edited by E. N. Anderson, D. Pearsall, E. Hunn, and N. Turner 2011, pp. 115-132. Wiley-Blackwell. John Wiley & Sons, Inc.

In the face of the global environmental crisis, ethnobiologists find themselves in a potentially helpful position.... more In the face of the global environmental crisis, ethnobiologists find themselves in a potentially helpful position. Ethnobiology represents one of a few bridging disciplines between the philosophical foundations of environmental ethics and the scientific foundations of environmental science. Environmental philosophers study what ought to be done to address environmental problems at multiple spatial and temporal scales (Borgerhoff-Mulder and Coppolillo 2005; Rolston 1988), focusing on what it means to value nature, how humans do value and should go about valuing nature, and how these ethical footings should inform science and policy. Environmental science incorporates functional roles for many scientific disciplines (Miller 2007). Environmental science and environmental ethics share the goal of curbing the environmental crisis through communication among practitioners from different fields, appreciation of diverse perspectives, and incorporation of vested parties in policies and management decisions (Penn and Mysterud 2007a). Practitioners of ethnobiology communicate and interact across disciplinary, cultural, and temporal boundaries (Lepofsky 2009; Nabhan 2009).Within ethnobiology, applied zooarchaeology (or “applied paleozoology” to include paleontology)—the study of animal remains from archaeological and paleontological sites to provide baseline information relevant to restoration ecology and conservation biology—transcends temporal boundaries and offers an example of a bridging perspective that links ethics to science.

A Late Messinian Palynoflora with a Distinct Taphonomy

by Fridgeir Grimsson

2011
Thomas Denk, Fridgeir Grimsson, Reinhard Zetter, Leifur A Simonarson
Springer
Chapter 9

A Lakeland Area in the Late Miocene

by Fridgeir Grimsson

2011
Thomas Denk, Fridgeir Grimsson, Reinhard Zetter, Leifur A Simonarson
Springer
Chapter 8

The Early Late Miocene Floras–First Evidence of Cool Temperate and Herbaceous Taxa

by Fridgeir Grimsson

2011
Thomas Denk, Fridgeir Grimsson, Reinhard Zetter, Leifur A Simonarson
Springer
Chapter 6

A Middle Miocene endemic freshwater mollusc assemblage from an intramontane Alpine lake (Aflenz Basin, Eastern Alps, Austria)

by Thomas A. Neubauer

Mathias Harzhauser, Thomas A. Neubauer, Oleg Mandic, Martin Zuschin, Stjepan Ćorić
Paläontologische Zeitschrift

The Classic Surtarbrandur Floras

by Fridgeir Grimsson

2011
Thomas Denk, Fridgeir Grimsson, Reinhard Zetter, Leifur A Simonarson
Springer
Chapter 5

The Archaic Floras

by Fridgeir Grimsson

2011
Thomas Denk, Fridgeir Grimsson, Reinhard Zetter, Leifur A Simonarson
Springer
Chapter 4

The Biogeographic History of Iceland - The North Atlantic Land Bridge Revisited

by Fridgeir Grimsson

2011
Thomas Denk, Fridgeir Grimsson, Reinhard Zetter, Leifur A Simonarson
Springer
Chapter 12

Climate Evolution in the Northern North Atlantic - 15 Ma to Present

by Fridgeir Grimsson

2011
Thomas Denk, Fridgeir Grimsson, Reinhard Zetter, Leifur A Simonarson
Springer
Chapter 13

Floristic turnover in Iceland from 15 to 6 Ma - extracting biogeographical signals from fossil floral assemblages

by Fridgeir Grimsson

2007
Fridgeir Grimsson, Thomas Denk
Journal of Biogeography

The Miocene floras of Iceland and their significance for late Cainozoic North Atlantic biogeography

by Fridgeir Grimsson

2005
Thomas Denk, Fridgeir Grimsson, Zlatko Kvacek
Botanical Journal of the Linnean Society

Episodic migration of oaks to Iceland: Evidence for a North Atlantic "land bridge" in the latest Miocene

by Fridgeir Grimsson

2010
Thomas Denk, Fridgeir Grimsson, Reinhard Zetter
American Journal of Botany

Lythrum and Peplis from the Late Cretaceous and Cenozoic of North America and Eurasia: New evidence suggesting early diversification within the Lythraceae

by Fridgeir Grimsson

2011
Fridgeir Grimsson, Reinhard Zetter, Christa-Charlotte Hofmann
American Journal of Botany

Fagaceae from the early Oligocene of Central Europe: Persisting New World and emerging Old World biogeographic links

by Fridgeir Grimsson

2012
Thomas Denk, Fridgeir Grimsson, Reinhard Zetter
Review of Palaeobotany and Palynology

Diverse fossil Onagraceae pollen from a Miocene palynoflora of north-east China: early steps in resolving the phytogeographic history of the family

by Fridgeir Grimsson

2012
Fridgeir Grimsson, Reinhard Zetter, Qin Leng
Plant Systematics and Evolution

Íslands fornu skógar

by Fridgeir Grimsson

2008
Fridgeir Grimsson, Leifur A Símonarson
Skograektarritid