Tree range expansion in eastern North America fails to keep pace with climate warming at northern range limits

2017 ◽  
Vol 23 (8) ◽  
pp. 3292-3301 ◽  
Author(s):  
Fabian Sittaro ◽  
Alain Paquette ◽  
Christian Messier ◽  
Charles A. Nock
Keyword(s):  
North America ◽  
Climate Warming ◽  
Range Expansion ◽  
Range Limits ◽  
Eastern North America

scholarly journals Twenty-year home-range dynamics of a white-tailed deer matriline

1999 ◽  
Vol 77 (7) ◽  
pp. 1128-1135 ◽  
Author(s):  
Michael E Nelson ◽  
L David Mech
Keyword(s):  
North America ◽  
Home Range ◽  
Range Expansion ◽  
Seasonal Migration ◽  
Natal Dispersal ◽  
Eastern North America ◽  
Slow Process ◽  
Individual Record ◽  
Summer Range ◽  
Range Dynamics

We examined the seasonal migration and home-range dynamics of a multigeneration white-tailed deer (Odocoileus virginianus) matriline comprising six females from four generations spanning a 20-year period in northeastern Minnesota. All, from the matriarch to her great-granddaughter, migrated to the same summer and winter ranges, the longest individual record being 14.5 years. Three maternal females concurrently occupied exclusive fawning sites within their ancestral matriarch's summer range, while two nonmaternal females explored new areas and ranged near their mothers. One great-granddaughter expanded her summer range 1 km beyond the matriarch's summer range while essentially vacating half of her ancestors' range and becoming nonmigratory the last 4 years of her life. These data indicate that individual movements of matriline members can potentially expand their ranges beyond the areas occupied by their ancestors through a slow process of small incremental changes. This suggests that the rapid extension of deer range in eastern North America resulted from natal dispersal by yearling deer rather than from the type of home-range expansion reported here.

scholarly journals Westward range expansion from middle latitudes explains the Mississippi River discontinuity in a forest herb of eastern North America

2020 ◽  
Vol 29 (22) ◽  
pp. 4473-4486
Author(s):  
Carly J. Prior ◽  
Nathan C. Layman ◽  
Matthew H. Koski ◽  
Laura F. Galloway ◽  
Jeremiah W. Busch
Keyword(s):  
North America ◽  
Mississippi River ◽  
Range Expansion ◽  
Eastern North America ◽  
Middle Latitudes ◽  
Forest Herb

Range Expansion of the Brewer Blackbird in Eastern North America

The Condor ◽  
1961 ◽  
Vol 63 (2) ◽  
pp. 162-177 ◽  
Author(s):  
Lawrence H. Walkinshaw ◽  
Dale A. Zimmerman
Keyword(s):  
North America ◽  
Range Expansion ◽  
Eastern North America

Trilobite biogeography in the Middle Devonian: geological processes and analytical methods

Paleobiology ◽  
1996 ◽  
Vol 22 (1) ◽  
pp. 66-79 ◽  
Author(s):  
Bruce S. Lieberman ◽  
Niles Eldredge
Keyword(s):  
North America ◽  
Sea Level Rise ◽  
Sea Level ◽  
Range Expansion ◽  
Middle Devonian ◽  
Ad Hoc ◽  
Eastern North America ◽  
Sea Level Changes ◽  
Biogeographic Patterns ◽  
Geological Processes

Phylogenetic patterns of trilobite clades were used to deduce biogeographic patterns during the Middle Devonian, a time of active plate collision between North America (Laurentia) and other plates, coincident with several major episodes of sea-level rise and fall. The mapping of biogeographic states onto phylogenies for asteropyginid and proetid trilobites indicated that during their history these trilobite clades often shifted the areas they occupied, and also underwent vicariant differentiation, followed by range expansion, followed by subsequent vicariance. Biogeographic patterns in these individual phylogenies were evaluated and synthesized using a modified version of Brooks Parsimony Analysis, which is discussed. This method makes it possible using cladistic methods to distinguish between episodes of vicariance and episodes of dispersal. Two types of dispersal are recognized herein: (1) the individualistic responses of certain taxa in a single clade that cannot be generalized, i.e., traditional ad hoc dispersal, and (2) those patterns of congruent range expansion that are replicated across several clades. The latter are not treated as true dispersal, expansion of a taxon's range over a barrier accompanied by diversification, but rather as a result of the temporary removal of barriers to marine taxa, due either to relative sea-level rise or to the collision of formerly disjunct plates. These are interpreted as changes in the structure of areas, and this type of dispersal is referred to as geo-dispersal. Geo-dispersal was found to have occurred in the Middle Devonian trilobite fauna of Eastern North America.Biogeographic analysis indicated that Eastern North America is a strongly supported area, with the Appalachian and Michigan Basins as sister areas. Armorica and the Canadian Arctic are also sister areas. Congruence was found between area cladograms produced by vicariance and dispersal analyses for Middle Devonian trilobites, suggesting that in some cases the geological processes governing vicariance, such as sea-level changes, were the same as those that caused dispersal.

The Identification and Study of Indian Shell Middens in Eastern North America: 1643–1861

1986 ◽  
Vol 6 (3) ◽  
pp. 227-243 ◽  
Author(s):  
Andrew L. Christenson
Keyword(s):  
Nineteenth Century ◽  
Civil War ◽  
North America ◽  
East Coast ◽  
Eastern North America ◽  
Shell Midden ◽  
Shell Middens ◽  
Work Done

Although the interest in shell middens in North America is often traced to reports of the discoveries in Danish kjoekkenmoeddings in the mid-nineteenth century, extensive shell midden studies were already occurring on the East Coast by that time. This article reviews selected examples of this early work done by geologists and naturalists, which served as a foundation for shell midden studies by archaeologists after the Civil War.

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