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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: 3723

Role of fire in regeneration from seed Role of fire in regeneration from seed

The effects of fire on seed germination and plant regeneration are discussed. Among the topics considered are the triggering of opening of serotinous fruits or cones by fire, the breaking of dormancy in seeds in the soil seed bank, the effects of smoke on germination, and the role of fire in initiating seedling recruitment by opening gaps in closed vegetation.
Authors
Jon E. Keeley, C. J. Fotheringham

Pepperweed: a growing threat to western wildlife habitat Pepperweed: a growing threat to western wildlife habitat

Counts on photographs and visual estimates of the numbers of territorial gulls are usually reliable indicators of the number of gull nests, but single visual estimates are not adequate to measure the number of nests in individual colonies. To properly interpret gull counts requires that several islands with known numbers of nests be photographed to establish the ratio of gulls to nests...
Authors
D.S. Gilmer

Predation on Corynorhinus townsendii by Rattus rattus Predation on Corynorhinus townsendii by Rattus rattus

Corynorhinus townsendii (Townsend's big- eared bat) is a rare and declining species. Ex- tensive surveys for the coastal subspecies, C. t. townsendii, in California indicate that only 50% of historic maternity colonies are occu- pied currently (Pierson and Rainey, 1996). Three of the largest maternity colonies occur in Marin Co. Two of these have been moni- tored with evening exit counts...
Authors
Gary M. Fellers

Competition between alien annual grasses and native annual plants in the Mojave Desert Competition between alien annual grasses and native annual plants in the Mojave Desert

Alien annual grasses in the genera Bromus and Schismus are widespread and abundant in the Mojave Desert, and negative correlations between these aliens and native annual plants suggest that competition may occur between them. Effects of competition were evaluated by thinning alien annual grass seedlings and measuring the responses of native annual plants at three sites in the central...
Authors
Matthew L. Brooks

Chaparral Chaparral

No abstract available.
Authors
Jon E. Keeley

Ruddy ducks Ruddy ducks

No abstract available at this time
Authors
A.K. Miles
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