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Publications

This is a list of publications written by Patuxent employees since Patuxent opened in 1939.  To search for Patuxent's publications by author or title, please click below to go to the USGS Publication Warehouse.

Filter Total Items: 8128

Lead concentrations in bullfrog Rana catesbeiana and green frog R. clamitans tadpoles inhabiting highway drainages Lead concentrations in bullfrog Rana catesbeiana and green frog R. clamitans tadpoles inhabiting highway drainages

Lead concentrations were determined in sediment and tadpoles of bullfrogs Rana catesbeiana and green frogs R. clamitans from drainages along highways with different daily average traffic volumes (range, 4272 to I08,800 vehicles day-I) and from ponds >0.4 km from the nearest highway. Lead concentrations (mg kg--I dry weight) in sediment (7-8 to 940) were usually greater (4-5 times) than...
Authors
C.W. Birdsall, C.E. Grue, A. Anderson

Analysis of utilization of desert habitats with dynamic simulation Analysis of utilization of desert habitats with dynamic simulation

The effects of climate and herbivores on cool desert shrubs in north-western Utah were investigated with a dynamic simulation model. Cool desert shrublands are extensively managed as grazing lands, and are defoliated annually by domestic livestock. A primary production model was used to simulate harvest yields and shrub responses under a variety of climatic regimes and defoliation...
Authors
B. Kenneth Williams

A taxonomic reevaluation of the plain pigeon (Columba inornata) A taxonomic reevaluation of the plain pigeon (Columba inornata)

Three subspecies of the Plain Pigeon (Columba inornata) were described in 1915 from very small samples, and the diagnostic color differences among them were rather minor. Examination of the small series (including two types) of the subspecies in the National Museum of Natural History (USNM) revealed that the quality of most of the material available in 1915 was poor and suggested that...
Authors
R.C. Banks

Forested wetlands of the Southeast: Review of major characteristics and role in maintaining water quality Forested wetlands of the Southeast: Review of major characteristics and role in maintaining water quality

Forested wetlands occupying floodplains of major rivers in the Southeast are highly productive and diverse ecological systems. The wetlands are produced and maintained by fluvial processes and unique hydrologic regimes consisting of periodic flooding and subsequent drydown. Fluctuations in soil chemistry and biology resulting from this flooding and drydown provide a broad range of...
Authors
Parley V. Winger
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