Publications
These publications showcase the significant science conducted in our Science Centers.
Filter Total Items: 16727
Field testing the Wildlink Capture Collar on wolves Field testing the Wildlink Capture Collar on wolves
Seventeen Wildlink capture collars were tested 61 times on 18 gray wolves (Canis lupus) during 1989-1991 in the Superior National Forest of northeastern Minnesota. Overall success rate was 89%, and most failures were attributable to premature battery expiration. When batteries were changed ≤ every 2 months, 17 of 17 tests succeeded. With an upgraded version of the collar in which...
Authors
L. David Mech, Eric L. Geist
Proximal nesting by the black-billed magpie and two raptors Proximal nesting by the black-billed magpie and two raptors
No abstract available.
Authors
D. H. Ellis
The safety and physiologic effects of the anticoccidial drugs monensin and clazuril in sandhill cranes (Grus canadensis) The safety and physiologic effects of the anticoccidial drugs monensin and clazuril in sandhill cranes (Grus canadensis)
Because crane chick mortality from disseminated visceral coccidiosis (DVC) at the Patuxent Wildlife Research Center increased in 1988, suggesting that the parasite may be developing a resistance to amprolium, a target animal safety study using coccidiostats, monensin and clazuril, was conducted on 27 subadult sandhill cranes.
Authors
J. W. Carpenter, M.N. Novilla, Jeff S. Hatfield
Response of feeder birds to an albino house finch Response of feeder birds to an albino house finch
No abstract available.
Authors
R. B. Clapp
[Book review] Practical incubation [Book review] Practical incubation
No abstract available.
Authors
Glenn H. Olsen
Status and Assessment of Chesapeake Bay Wildlife Contamination Status and Assessment of Chesapeake Bay Wildlife Contamination
As an integral component of its priority setting process, the Chesapeake Bay Program`s Toxics Subcommittee has sought the expertise of Chesapeake Bay researchers and managers in developing a series of Chesapeake Bay toxics status and assessment papers. In the report, evidence for historical and current contaminant effects on key bird species, mammals, reptiles and amphibians which...
Authors
G. H. Heinz, Stanley N. Wiemeyer, D. R. Clark, P.H. Albers, P. Henry, R.A. Batiuk
Effects of aerial applications of esfenvalerate on small mammals and birds in Douglas-fir seed orchards Effects of aerial applications of esfenvalerate on small mammals and birds in Douglas-fir seed orchards
Although no adverse effects were documented, this study did not provide data sufficient to adequately test for effects of aerial spraying of esfenvalerate on small mammal populations or nesting of birds in Douglas-fir seed orchards. Small mammal trapping data were too sparse to provide statistical testing with reasonable power. Residues of the R and S forms of fenvalerate were low with...
Authors
L. J. Blus, Charles J. Henny, C.P. Rice, R. A. Grove
Modeling metapopulation dynamics for single species of seabirds Modeling metapopulation dynamics for single species of seabirds
Seabirds share many characteristics setting them apart from other birds. Importantly, they breed more or less obligatorily in local clusters of colonies that can move regularly from site to site, and they routinely exchange breeders. The properties of such metapopulations have only recently begun to be examined, often with models that are occupancy-based (using only colony presence or...
Authors
P. A. Buckley, R. Downer
Metabolic products as biomarkers Metabolic products as biomarkers
Ideally, endogenous biomarkers would indicate both exposure and environmental effects of toxic chemicals; however, such comprehensive biochemical and physiological indices are currently being developed and, at the present time, are unavailable for use in environmental monitoring programs. Continued work is required to validate the use of biochemical and physiological stress indices as...
Authors
M. J. Melancon, R. Alscher, W. Benson, G. Kruzynski, R.F. Lee, H.C. Sikka, R.B. Spies
Use of agricultural drainwater impoundments by snowy plovers (Charadrius alexandrinus nivosus) in the southern San Joaquin valley, California Use of agricultural drainwater impoundments by snowy plovers (Charadrius alexandrinus nivosus) in the southern San Joaquin valley, California
No abstract available.
Authors
D.L. Roster, W.L. Hohman, D. A. Barnum
Behavior of sandhill cranes harnessed with different satellite transmitters Behavior of sandhill cranes harnessed with different satellite transmitters
The effectiveness of various attachment methods and designs of platform transmitting terminals (PTT's) was tested on captive sandhill cranes (Grus canadensis) at the Patuxent Wildlife Research Center, Laurel, Maryland, during 1989-91. Combinations of attachment and transmitter designs included neoprene cord harness with batteries separate from the transmitter (2 harness designs), Teflon...
Authors
Glenn H. Olsen, D. H. Ellis, S.E. Landfried, L.H. Miller, S.S. Klugman, M.R. Fuller, C.H. Vermillion
Introduction to the Methods Section Introduction to the Methods Section
No abstract available.
Authors
Gary C. White, J.D. Nichols