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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: 3724

The role of top carnivores in regulating terrestrial ecosystems The role of top carnivores in regulating terrestrial ecosystems

No abstract available at this time
Authors
J. Terborgh, J. A. Estes, P. Paquet, K. Ralls, D. Boyd-Herger, B.J. Miller, R. F. Noss

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

Seroepidemiology of upper respiratory tract disease in the desert tortoise of California Seroepidemiology of upper respiratory tract disease in the desert tortoise of California

Several factors have combined with an upper respiratory tract disease (URTD) to produce declines on some population numbers of desert tortoises (Gopherus agassizii) in the western USA. This study was designed to determine the seroepidemiology of URTD in a population of wild adult tortoises at the Desert Tortoise Research Natural Area (DTNA) study site in Kern County (California, USA)...
Authors
Mary B. Brown, Kristin H. Berry, Isabella M. Schumacher, Kenneth A. Nagy, Mary M. Christopher, Paul A. Klein

Management of bighorn sheep Management of bighorn sheep

No abstract available.
Authors
C. L. Douglas, David M. Leslie

Effect of high aluminum consumption on mechanics and composition of furculae of free-ranging coots Effect of high aluminum consumption on mechanics and composition of furculae of free-ranging coots

High levels of ingested Al can affect mechanical properties of bones. Because of the spring action of the furcula during the wingbeat, small changes in the mechanical properties of this bone may have measurable impacts on long-distance flight. We examined the furculae and ingesta of free-ranging American coots (Fulica americana) in San Francisco Bay (California, USA), where they consume...
Authors
C. A. Hui, O. Ellers

Photosynthetic pathway diversity in a seasonal pool community Photosynthetic pathway diversity in a seasonal pool community

1. Photosynthetic pathway diversity was evaluated for the dominant species in a seasonally aquatic community in the south-western USA using 14C pulse-chase techniques. 2. Under submerged conditions, only about half of the species were clearly C3, three of the 15 dominants were CAM, one species was C4 and three were potentially assimilating carbon with both C3 and C4 fixation. 3. During...
Authors
Jon E. Keeley
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