Factors Affecting Nest Survival of Greater Sage-Grouse in Northcentral Montana (2007)
BRENDAN J. MOYNAHAN, MARK S. LINDBERG, JAY J. ROTELLA, JACK WARD THOMAS
We studied greater sage-grouse (Centrocercus urophasianus) in northcentral Montana, USA, to examine the relationship between nest success and habitat conditions, environmental variables, and female...
Lesser Scaup Population Dynamics: What Can Be Learned from Available Data? (2006)
Koons, David N; Montana State University; Koons@demogr.mpg.de, Rotella, Jay J; Montana State University; Rotella@montana.edu, Willey, David W; Montana State University; Willey@montana.edu, Taper, Mark; Montana State University; Taper@montana.edu, Clark, Robert G; Canadian Wildlife Service; Bob.clark@ec.gc.ca, Slattery, Stuart; Institute For Wetland And Waterfowl Research; S_slattery@ducks.ca, ...
Populations of Lesser Scaup (Aythya affinis) have declined markedly in North America since the early 1980s. When considering alternatives for achieving population recovery, it would be useful to...
SURVIVAL OF FEMALE LESSER SCAUP: EFFECTS OF BODY SIZE, AGE, AND REPRODUCTIVE EFFORT (2003)
Jay J. Rotella, Robert G. Clark, Alan D. Afton
In birds, larger females generally have greater breeding propensity, reproductive investment, and success than do smaller females. However, optimal female body size also depends on how natural...