Publications
Below is a list of WERC's peer-reviewed publications. If you are searching for a specific publication and cannot find it in this list, please contact werc_web@usgs.gov
Filter Total Items: 3723
Population persistence in Florida torreya: Comparing modeled projections of a declining coniferous tree Population persistence in Florida torreya: Comparing modeled projections of a declining coniferous tree
The Florida torreya ( Torreya taxifolia) is a coniferous tree endemic to a 35-km stretch of bluffs and ravines along the east side of the Apalachicola River in northern Florida and southern Georgia. This formerly locally abundant tree has declined as a result of disease during the 1950s and is on the U.S. endangered species list. With no seed production in the wild, this species is...
Authors
Mark W. Schwartz, Sharon M. Hermann, Phillip J. van Mantgem
Linking biodiversity to ecosystem function: Implications for conservation ecology Linking biodiversity to ecosystem function: Implications for conservation ecology
We evaluate the empirical and theoretical support for the hypothesis that a large proportion of native species richness is required to maximize ecosystem stability and sustain function. This assessment is important for conservation strategies because sustenance of ecosystem functions has been used as an argument for the conservation of species. If ecosystem functions are sustained at...
Authors
M.W. Schwartz, C.A. Brigham, J.D. Hoeksema, K.G. Lyons, M.H. Mills, P. van Mantgem
Distribution of Xantus' Murrelet Synthliboramphus hypoleucus at sea in the Southern California Bight, 1995-97 Distribution of Xantus' Murrelet Synthliboramphus hypoleucus at sea in the Southern California Bight, 1995-97
We radiomarked 153 Xantus' Murrelets Synthliboramphus hypoleucus captured at sea near Santa Barbara Island (SBI), the largest murrelet colony in the California Channel Islands, USA. We tracked these radiomarked murrelets in the Southern California Bight (SCB) off coastal southern California during the 1995-97 breeding seasons. In 1995 during mild El Niño conditions, the murrelets were...
Authors
Darrell L. Whitworth, John Y. Takekawa, Harry R. Carter, Scott H. Newman, Thomas W. Keeney, Paul R. Kelly
Waterfowl Distribution, Movements and Habitat Use Relative to Recent Habitat Changes in the Central Valley of California: Progress Report - June 2000 Waterfowl Distribution, Movements and Habitat Use Relative to Recent Habitat Changes in the Central Valley of California: Progress Report - June 2000
No abstract available at this time
Authors
J. P. Fleskes, J.Y. Yee, Michael L. Casazza, J. Daugherty, W.M. Perry
Amphibians and reptiles of the Sierra de Alamos Amphibians and reptiles of the Sierra de Alamos
No abstract available at this time
Authors
C.R. Schwalbe, C.H. Lowe
The Northern Pintail The Northern Pintail
No abstract available at this time
Authors
Michael L. Casazza, M. R. Miller
Tracking the spring migration of a bar-headed goose (Anser indicus) across the Himalaya with satellite telemetry Tracking the spring migration of a bar-headed goose (Anser indicus) across the Himalaya with satellite telemetry
Soil-food-chain-pesticide wildlife relationships were investigated to learn the concentration of pesticide residues present in soils, macro-invertebrates, vertebrates, and seeds as a result of annual applications of aldrin at recommended rates for pest control. Two central Missouri cornfields treated witb aldrin at 1 lb/acre, for 16 and 15 of the past 17 years, were selected for study...
Authors
Sàlim Javed, John Y. Takekawa, David C. Douglas, Asad R. Rahmani, Yutaka Kanai, Meenakshi Nagendran, Binod C. Choudhury, Shruti Sharma
Sierra Nevada forest dynamics: pattern, pace, and mechanisms of change. Annual report for fiscal year 1999 Sierra Nevada forest dynamics: pattern, pace, and mechanisms of change. Annual report for fiscal year 1999
No abstract available at this time
Authors
N.L. Stephenson, P. J. van Mantgem
Monitoring giant garter snakes at Colusa National Wildlife Refuge: 2000 progress report Monitoring giant garter snakes at Colusa National Wildlife Refuge: 2000 progress report
No abstract available at this time
Authors
G.D. Wylie, Michael L. Casazza, N.M. Carpenter
Development and Implementation of an Alien Plant Control Strategy for Channel Islands National Park. Technical report Development and Implementation of an Alien Plant Control Strategy for Channel Islands National Park. Technical report
No abstract available at this time
Authors
S. Chaney, K. McEachern
Elk-effects vegetation monitoring program for Tomales Point Elk Range, Point Reyes National Seashore, California Elk-effects vegetation monitoring program for Tomales Point Elk Range, Point Reyes National Seashore, California
The monitoring program for elk effects on Tomales Point vegetation is designed to provide information on how tule elk grazing affects plant communities and rare species. The basic objective of the program is to show whether the elk are driving the vegetation into an unacceptable state by their grazing. The expectation is that as elk numbers increase, grazing pressure will increase too...
Authors
Kathryn McEachern, Marcia Semenoff-Irving, Pamela van der Leeden
Activities and preliminary results of nearshore benthic habitat mapping in southern California, 1998 Activities and preliminary results of nearshore benthic habitat mapping in southern California, 1998
The nearshore benthic habitat of the Santa Barbara coast and Channel Islands supports a diversity of marine life that are commercially, recreationally, and intrinsically valuable. Some of these resources are known to be endangered including a variety of rockfish and the White Abalone. State and National agencies have been mandated to preserve and enhance these resources and require...
Authors
Guy R. Cochrane, Kevin D. Lafferty