Blue-winged Teal (Anas discors; BWTE) are the
second most abundant duck (family Anatidae)
species in North America and are widely distributed
(Rowher et al. 2002). Its breeding range stretches from the southern high-plains of New Mexico
Freshwater fishes; Fishes; Fisheries management; Fish hatcheries;
The Circulars are technical publications of general interest intended to aid conservation and management. Publications that review in considerable detail and at a high technical level certain broad areas of research appear in this series.
This review of the green turtle, Chelonia mydas, has been prepared following the FAO fisheries synopsis outline of Rose (1965) and as applied to marine turtles by Hirth (1971b). The main purposes of this synopsis are to bring together the current...
This is a status assessment of the double-crested cormorant in North America as of 2001. It includes general information on the bird, biological information and area-specific population information for throughout North America.
This report shares a history of acquisition in the National Wildlife Refuge System
and how it may shape our future
direction. It establishes a baseline from
which our work in creating new policy
flows. Given the costs and time factors to...
This classification, to be used in a new inventory of wetlands and deepwater habitats of the United
States, is intended to describe ecological tax, arrange them in a system useful to resource managers,
furnish units for mapping, and provide...