Temporal patterns of genetic diversity in Baetis tricaudatus (Ephemeroptera:Baetidae) from the Russian River, northern California

2017 ◽  
Vol 36 (2) ◽  
pp. 351-363 ◽  
Author(s):  
Natalie J. Stauffer-Olsen ◽  
Patrick M. O’Grady ◽  
Vincent H. Resh
Keyword(s):  
Genetic Diversity ◽  
Temporal Patterns ◽  
Northern California ◽  
Baetis Tricaudatus ◽  
Russian River

Distribution of Foraminifera in the Russian River Estuary, Northern California

1977 ◽  
Vol 23 (4) ◽  
pp. 453 ◽  
Author(s):  
Malcolm G. Erskian ◽  
Jere H. Lipps
Keyword(s):  
River Estuary ◽  
Northern California ◽  
Russian River

scholarly journals Demographic mechanisms underpinning genetic assimilation of remnant groups of a large carnivore

2016 ◽  
Vol 283 (1839) ◽  
pp. 20161467 ◽  
Author(s):  
Nate Mikle ◽  
Tabitha A. Graves ◽  
Ryan Kovach ◽  
Katherine C. Kendall ◽  
Amy C. Macleod
Keyword(s):  
Genetic Diversity ◽  
Ursus Arctos ◽  
Population Expansion ◽  
Leading Edge ◽  
Temporal Patterns ◽  
Parentage Analysis ◽  
Genetic Assimilation ◽  
Grizzly Bears ◽  
Sampling Effort ◽  
Spatial And Temporal Patterns

Current range expansions of large terrestrial carnivores are occurring following human-induced range contraction. Contractions are often incomplete, leaving small remnant groups in refugia throughout the former range. Little is known about the underlying ecological and evolutionary processes that influence how remnant groups are affected during range expansion. We used data from a spatially explicit, long-term genetic sampling effort of grizzly bears ( Ursus arctos ) in the Northern Continental Divide Ecosystem (NCDE), USA, to identify the demographic processes underlying spatial and temporal patterns of genetic diversity. We conducted parentage analysis to evaluate how reproductive success and dispersal contribute to spatio-temporal patterns of genetic diversity in remnant groups of grizzly bears existing in the southwestern (SW), southeastern (SE) and east-central (EC) regions of the NCDE. A few reproductively dominant individuals and local inbreeding caused low genetic diversity in peripheral regions that may have persisted for multiple generations before eroding rapidly (approx. one generation) during population expansion. Our results highlight that individual-level genetic and reproductive dynamics play critical roles during genetic assimilation, and show that spatial patterns of genetic diversity on the leading edge of an expansion may result from historical demographic patterns that are highly ephemeral.

BASIN GEOMETRY AND EVOLUTION ALONG THE MAACAMA FAULT, RUSSIAN RIVER WATERSHED, NORTHERN CALIFORNIA

2019 ◽  
Author(s):  
V.E. Langenheim ◽  
◽  
Geoffrey Cromwell ◽  
D.S. Sweetkind ◽  
Andrew Morita ◽  
...  
Keyword(s):  
Northern California ◽  
River Watershed ◽  
Basin Geometry ◽  
Russian River

Spatial and temporal patterns of genetic diversity in a fragmented and transient landscape

2020 ◽  
Vol 34 (2) ◽  
pp. 217-233 ◽  
Author(s):  
Richard W. Orton ◽  
Derek B. Tucker ◽  
John Scott Harrison ◽  
Lance D. McBrayer
Keyword(s):  
Genetic Diversity ◽  
Temporal Patterns ◽  
Spatial And Temporal Patterns
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