Effects of environmentally relevant concentrations of endosulfan, azinphosmethyl, and diazinon on Great Basin spadefoot (Spea intermontana) and Pacific treefrog (Pseudacris regilla)

2010 ◽  
Vol 29 (7) ◽  
pp. 1604-1612 ◽  
Author(s):  
Alexandra De Jong Westman ◽  
John Elliott ◽  
Kim Cheng ◽  
Graham van Aggelen ◽  
Christine A. Bishop
Keyword(s):  
Great Basin ◽  
Pseudacris Regilla ◽  
Pacific Treefrog

MISDIRECTED AMPLEXUS BETWEEN A PACIFIC TREEFROG (PSEUDACRIS REGILLA) AND A WESTERN TOAD (ANAXYRUS BOREAS) IN A NORTHERN CALIFORNIA UPLAND

2021 ◽  
Vol 102 (2) ◽  
Author(s):  
Jeff A Alvarez ◽  
Elizabeth Lopez ◽  
Tara Collins ◽  
Angelique Herman ◽  
Jennifer Jelincic ◽  
...  
Keyword(s):  
Northern California ◽  
Pseudacris Regilla ◽  
Pacific Treefrog ◽  
Anaxyrus Boreas

scholarly journals Reconnecting Amphibian Habitat through Small Pond Construction and Enhancement, South Okanagan River Valley, British Columbia, Canada

Diversity ◽  
2018 ◽  
Vol 10 (4) ◽  
pp. 108 ◽  
Author(s):  
Sara Ashpole ◽  
Christine Bishop ◽  
Stephen Murphy
Keyword(s):  
British Columbia ◽  
Great Basin ◽  
Habitat Restoration ◽  
River Valley ◽  
Supporting Evidence ◽  
Amphibian Species ◽  
Species Recovery ◽  
Breeding Sites ◽  
Wetland Habitat ◽  
Pacific Treefrog

The arid south Okanagan River Valley, British Columbia is a highly-modified landscape; where wetland and riparian habitat loss exceeds 85%, and 88% of remaining wetlands experience at least one harmful anthropogenic stressor. This multi-stressor landscape for amphibian species at risk led to a collaborative stakeholder approach for habitat restoration and species recovery. The main project goal was to increase the quantity and quality of lowland wetland habitat by reconnecting known amphibian-breeding sites with constructed and/or enhanced small ponds. Long-term amphibian monitoring data were used to determine strategic locations for wetland construction and/or enhancement. Habitat enhancement outcomes (Ntotal = 21 sites) since 2006 include 10 newly constructed ponds, enhancement of eight re-contoured ponds after historic infilling, and invasive predatory species removal at three sites. Project ponds were monitored annually (2007 to 2014) for calling frogs, the presence of eggs, and metamorphic emergence. Early signs of colonization and metamorphic success for Great Basin Spadefoot (Spea intermontana) (N = 13 sites) and Pacific treefrog (Pseudacris regilla) (N = 7 sites) populations have been observed, however no records of Blotched tiger salamanders (Ambystoma mavortium) colonization has been detected. Wetland habitat construction and enhancement have doubled the number of available fishless ponds to support breeding within the study area and engaged landowners through voluntary stewardship. Whether constructed or enhanced ponds have aided species recovery is unclear, though the colonization and successful metamorphosis of some species provides early supporting evidence that it will.

Estimating the slip rates of normal faults in the Great Basin, USA

2000 ◽  
Vol 12 (3-4) ◽  
pp. 227-240 ◽  
Author(s):  
C. M. dePolo ◽  
J. G. Anderson
Keyword(s):  
Great Basin ◽  
Normal Faults ◽  
Slip Rates
Sign in / Sign up

Export Citation Format

Share Document