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Keyword: amphibians

Development and evaluation of habitat models for herpetofauna and small mammals

Publications Posted on: August 01, 2018
We evaluated the ability of discriminant analysis (DA), logistic regression (LR), and multiple regression (MR) to describe habitat use by amphibians, reptiles, and small mammals found in California oak woodlands. We also compared models derived from pitfall and live trapping data for several species.

Habitat relationships of amphibians and reptiles in California oak woodlands

Publications Posted on: August 01, 2018
We used pitfall traps and time-constrained searches to sample amphibians and reptiles and to describe their habitats in oak woodlands at three areas in California. We captured 766 individuals representing 15 species during pitfall trapping and 333 animals representing 15 species during the time-constrained searches. A total of 19 species were sampled.

Vegetation patterns and abundances of amphibians and small mammals along small streams in a northwestern California watershed

Publications Posted on: August 01, 2018
Our goal was to describe and evaluate patterns of association between stream size and abundances of amphibians and small mammals in a northwestern California watershed. We sampled populations at 42 stream sites and eight upland sites within a 100- watershed in 1995 and 1996. Stream reaches sampled ranged from poorly defined channels that rarely flowed to 10-m-wide channels with perennial flow.

Data for National Fire and Fire Surrogate study: environmental effects of alternative fuel reduction treatments

Datasets Posted on: June 08, 2016
Comprised of 12 sites nationwide, the Fire and Fire Surrogates study (FFS) is a comprehensive interdisciplinary experiment designed to evaluate the economics and ecological consequences of alternative fuel reduction treatments in seasonally dry forests of the United States.

Small Mammals, Reptiles, and Amphibians

Publications Posted on: May 12, 2016
This chapter focuses on small mammals, reptiles, and amphibians that inhabit the grasslands within the Southwestern Region of the USDA Forest Service. The chapter is not intended to be an all inclusive list of species, but rather to address the species that play important roles in grassland ecosystems and that often are associated with the management of grasslands. Among the larger rodents discussed here are prairie dogs and pocket gophers.

Management of amphibians, reptiles, and small mammals in North America: Proceedings of the symposium

Publications Posted on: May 12, 2016
Historically the management of public lands from a multiple use perspective has led to a system that emphasizes those habitat components or faunal elements that primarily resulted in some sort of definable economic value. While this often benefitted other species that were not even considered in the original prescriptions, it also negatively impacted others. We no longer can afford to take this simplistic view of ecosystem management.

Wildlife population and harvest data for Forest Service 2010 RPA assessment

Datasets Posted on: August 27, 2015
The data documents trends in the populations and harvests of wildlife species across the United States, from 1955 to 2010, as one set of resource condition indicators as required by the Forest and Rangeland Renewable Resources Planning Act (RPA) of 1974. Data from a variety of sources were used to document recent historical trends in big game, small game, migratory game birds, furbearers, nongame, and imperiled species.

Evaluation of episodic acidification and amphibian declines in the Rocky Mountains

Publications Posted on: May 28, 2015
We define criteria for documenting episodic acidification of amphibian breeding habitats and examine whether episodic acidification is responsible for observed declines of amphibian populations in the Rocky Mountains.

Vulnerability of amphibians to climate change: implications for rangeland management

Publications Posted on: April 26, 2011
Many amphibian populations have declined drastically in recent years due to a large number of factors including the emerging threat of climate change (Wake 2007). Rangelands provide important habitat for amphibians. In addition to natural wetlands, stock tanks and other artificial water catchments provide habitat for many amphibian species (Euliss et al. 2004).

Amphibians and land use in the Chihuahuan Desert border region

Publications Posted on: August 18, 2010
The pressures of growing borderland populations, increased land use, and Increased water use are threatening amphibians in the Chihuahuan Desert border area. In this paper, we describe potential direct threats such as loss or contamination of aquatic habitats, and indirect threats such as the sublethal effects of pesticides on developing larvae and tadpoles.