L. A. Brennan

Changes in Northern Bobwhite Habitat and Populations in a Southern Mississippi Wildlife Management Area: 1955-1992

Empirical case histories that relate long-term northern bobwhite (Colinus virginianus) population declines to changing habitat conditions are rare in the scientific literature. We examined long-term (38 years; 1955-1992) changes in habitat conditions and bobwhite population trends at Copiah County Wildlife Management Area (CCWMA), Mississippi. Between 1955 and 1992, proportion of CCWMA in old fields declined from 70% to 20%, proportion of area in forest with <50% canopy cover declined from 18% to 0%, and proportion of forests with >50% canopy cover increased from 19% to 78%. During...

Year
1994

Arthropod Response to Strip Disking in Old Fields Managed for Northern Bobwhites

In the southeastern United States northern bobwhite (Colinus virginianus) populations have declined rapidly during the past 3 decades. Deterioration of suitable habitat conditions has been suggested as a major cause of this decline. Habitat management efforts typically focus on production of fall/winter foods (i.e., seeds). Management efforts are seldom directed at production of breeding season foods (i.e., arthropods) for bobwhites. Therefore, we used a D-Vac insect vacuum to measure effects of strip disking on arthropod resources in old fields managed for northern bobwhites during the...

Year
1994