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

scholarly journals Apheloria polychroma, a new species of millipede from the Cumberland Mountains (Polydesmida: Xystodesmidae)

Zootaxa ◽  
2018 ◽  
Vol 4375 (3) ◽  
pp. 409
Author(s):  
PAUL E. MAREK ◽  
JACKSON C. MEANS ◽  
DEREK A. HENNEN
Keyword(s):  
New Species ◽  
North America ◽  
Mississippi River ◽  
Appalachian Mountains ◽  
Eastern North America ◽  
Ouachita Mountains ◽  
Model Species ◽  
Color Morphs ◽  
Cumberland Mountains ◽  
A New Species

Millipedes of the genus Apheloria Chamberlin, 1921 occur in temperate broadleaf forests throughout eastern North America and west of the Mississippi River in the Ozark and Ouachita Mountains. Chemically defended with toxins made up of cyanide and benzaldehyde, the genus is part of a community of xystodesmid millipedes that compose several Müllerian mimicry rings in the Appalachian Mountains. We describe a model species of these mimicry rings, Apheloria polychroma n. sp., one of the most variable in coloration of all species of Diplopoda with more than six color morphs, each associated with a separate mimicry ring.

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 Carpophiline-ID: an interactive matrix-based key to the carpophiline sap beetles (Coleoptera, Nitidulidae) of Eastern North America

ZooKeys ◽  
2021 ◽  
Vol 1028 ◽  
pp. 85-93
Author(s):  
Courtney L. DiLorenzo ◽  
Gareth S. Powell ◽  
Andrew R. Cline ◽  
Joseph V. McHugh
Keyword(s):  
North America ◽  
Mississippi River ◽  
Adult Stage ◽  
Eastern North America ◽  
Free Access ◽  
Sap Beetles ◽  
Technical Specifications ◽  
Ecological Importance

Carpophiline-ID is presented, a matrix-based LucidTM key, for the adult stage of the known species of Carpophilinae (Coleoptera: Nitidulidae) of North America, east of the Mississippi River. An overview of the features and technical specifications used to build the key is provided. The list of terminal taxa used in the key represents the most current regional account for Carpophilinae, a beetle subfamily of agricultural and ecological importance. The value of matrix-based, free access keys for the identification of difficult taxa is discussed.

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

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

scholarly journals Limited Range-Filling Among Endemic Forest Herbs of Eastern North America and Its Implications for Conservation With Climate Change

2021 ◽  
Vol 9 ◽  
Author(s):  
Stephanie K. Erlandson ◽  
Jesse Bellemare ◽  
David A. Moeller
Keyword(s):  
Climate Change ◽  
North America ◽  
Endemic Species ◽  
Species Distribution Models ◽  
Future Climate Change ◽  
Eastern North America ◽  
Suitable Habitat ◽  
Distribution Models ◽  
Herb Species ◽  
Forest Herb

Biodiversity hotspots host a high diversity of narrowly distributed endemic species, which are increasingly threatened by climate change. In eastern North America, the highest concentration of plant diversity and endemism occurs in the Southern Appalachian Mountains (SAM). It has been hypothesized that this region served as a refugium during Pleistocene glacial cycles and that postglacial migration northward was dispersal limited. We tested this hypothesis using species distribution models for eight forest herb species. We also quantified the extent to which the geography of suitable habitat shifted away from the current range with climate change. We developed species distribution models for four forest herb species endemic to the SAM and four that co-occur in the same SAM habitats but have broader ranges. For widespread species, we built models using (1) all occurrences and (2) only those that overlap the SAM hotspot in order to evaluate the extent of Hutchinsonian shortfalls and the potential for models to predict suitable habitat beyond the SAM. We evaluated the extent to which predicted climatically suitable areas are projected to shift away from their current ranges under future climate change. We detected unoccupied but suitable habitat in regions up to 1,100 km north of the endemic species’ ranges. Endemic ranges are disjunct from suitable northern areas due to a ∼100–150 km gap of unsuitable habitat. Under future climate change, models predicted severe reductions in suitable habitat within current endemic ranges. For non-endemic species, we found similar overall patterns and gap of unsuitability in the same geographic location. Our results suggest a history of dispersal limitation following the last glacial maximum along with an environmental barrier to northward migration. Conservation of endemic species would likely require intervention and assisted migration to suitable habitat in northern New England and Canada.

Sign in / Sign up

Export Citation Format

Share Document