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: 3776
Association of seasonal reproductive patterns with changing food availability in an equatorial carnivore, the spotted hyaena (Crocuta crocuta) Association of seasonal reproductive patterns with changing food availability in an equatorial carnivore, the spotted hyaena (Crocuta crocuta)
Reproductive seasonalitywas examined inan equatorial populationof free-living spotted hyaenas (Crocuta crocuta) inKenya. The study population was observed continuously for 10 years, duringwhich time the dates of all births, conceptions, weanings,andcubdeathswererecorded.Local preyabundancewasestimatedtwoto four timespermonth, andrainfallwas recordeddailythroughout thestudyperiod
Authors
K.E. Holekamp, M. Szykman, E. E. Boydston, L. Smale
Stem demography and postfire recruitment of a resprouting serotinous conifer Stem demography and postfire recruitment of a resprouting serotinous conifer
The contribution of resprouts and seedling recruitment to post-fire regeneration of the South African fynbos conifer Widdringtonia nodiflora was compared eight months after wildfires in 1990. Stems on all trees were killed by fire but resprouting success was > 90 % at all but one site. A demographic study of burned skeletons revealed that prior to these fires, nearly all plants were...
Authors
Jon E. Keeley, Melanie B. Keeley, William J. Bond
Reexamining fire suppression impacts on brushland fire regimes Reexamining fire suppression impacts on brushland fire regimes
California shrubland wildfires are increasingly destructive, and it is widely held that the problem has been intensified by fire suppression, leading to larger, more intense wildfires. However, analysis of the California Statewide Fire History Database shows that, since 1910, fire frequency and area burned have not declined, and fire size has not increased. Fire rotation intervals have...
Authors
Jon E. Keeley, C. J. Fotheringham, Marco Morais
Enhancement of PAHs in estuarine invertebrates by surface runoff at a decommissioned military fuel depot Enhancement of PAHs in estuarine invertebrates by surface runoff at a decommissioned military fuel depot
Accumulation of polycyclic aromatic hydrocarbons (PAHs) was determined in blue mussels (Mytilus spp.) and shore crabs (Hemigrapsus sp.) at a recently closed military fuel depot in central San Francisco Bay, California. In April 1996, during a period of above average precipitation, specimens were collected at the depot, near the depot, and at sites 10 and 20 km south of the depot. Four...
Authors
A.K. Miles, N. Roster
Letters: Defending whole animal collections Letters: Defending whole animal collections
No abstract available.
Authors
N.J. Scott, M.R. Jennings
Predatory bird populations in the East Mojave Desert, California Predatory bird populations in the East Mojave Desert, California
No abstract available.
Authors
R.L. Knight, R.J. Camp, W.I. Boarman, H.A.L. Knight
Beaded-chain collars: a new method to radiotag kangaroo rats for short-term studies Beaded-chain collars: a new method to radiotag kangaroo rats for short-term studies
No abstract available.
Authors
M. Harker, G. B. Rathbun, C.A. Langtimm
Effects of avian cholera on survival of Lesser Snow geese Anser caerulescens: An experimental approach Effects of avian cholera on survival of Lesser Snow geese Anser caerulescens: An experimental approach
Avian cholera, caused by the bacterium Pasteurella multocida, is one of the most important diseases affecting waterfowl in North America but little is known about the epizootiology of this disease or its impacts on annual survival rates. We ringed Lesser Snow Geese Anser caerulescens nesting at Wrangel Island, Russia and Banks Island, Canada with metal rings and individually coded...
Authors
Michael D. Samuel, John Y. Takekawa, Vasily V. Baranyuk, Dennis L. Orthmeyer
The diving physiology of bottlenose dolphins (Tursiops truncatus). III. Thermoregulation at depth The diving physiology of bottlenose dolphins (Tursiops truncatus). III. Thermoregulation at depth
During diving, marine mammals initiate a series of cardiovascular changes that include bradycardia and decreased peripheral circulation. Because heat transfer from thermal windows located in peripheral sites of these mammals depends on blood flow, such adjustments may limit their thermoregulatory capabilities during submergence. Here, we demonstrate how the thermoregulatory responses of...
Authors
T. M. Williams, D. Noren, P. Berry, J. A. Estes, C. Allison, J. Kirtland
Thamnophis elegans vagrans (wandering garter snake). Diet Thamnophis elegans vagrans (wandering garter snake). Diet
No abstract available.
Authors
C.W. Painter, N.J. Scott, M.J. Altenbach