Publications
These publications showcase the significant science conducted in our Science Centers.
Filter Total Items: 16785
Captive breeding: Eagles
No abstract available.
Authors
J. W. Carpenter, R. R. Gabel, Stanley N. Wiemeyer
In situ striped bass (Morone saxatilis) contaminant and water quality studies in the Potomac River
The objectives of this study were to evaluate survival of striped bass (Morone saxatilis) prolarvae and yearlings in the Potomac River by using in situ test chambers; correlate survival of both striped bass life stages with the presence of water quality conditions, inorganic contaminants, and organic contaminants and conduct histological examinations of surviving yearling striped bass. Survival of
Authors
L. W. Hall, W. S. Hall, S. J. Bushong, Roger L. Herman
Delayed maturation, neoteny, and social system differences in two manakins of the genus Chiroxiphia
Long‐tailed manakins (Chiroxiphia linearis) and swallow‐tailed manakins (C. caudata) are closely related, sexually dichromatic, lek‐breeding species in which male mating success is highly skewed. Males of both species delay plumage maturation. Before reaching the definitive state, they wear a sequence of feather coats less conspicuous than that of the adult. Nondefinitive plumages probably enhance
Authors
Mercedes S. Foster
The Husting dilemma: A methodological note
Recently, Gill (1985) discussed the interpretation of capture history data resulting from his own studies on the red-spotted newt, Notophthalmus viridescens , and work by Husting (1965) on spotted salamanders, Ambystoma maculatum. Gill (1985) noted that gaps in capture histories (years in which individuals were not captured, preceded and followed by years in which they were) could result from eit
Authors
James D. Nichols, G. R. Hepp, Kenneth H. Pollock, James E. Hines
Mourning dove nesting: Seasonal patterns and effects of September hunting
A nationwide State-Federal cooperative study was initiated in 1978 to examine effects of September hunting on nesting mourning doves (Zenaida macroura). This study was designed to (1) determine the proportion of the annual total of dove nesting activity and production that occurs in September and October, and (2) determine if survival rates of mourning dove eggs and nestlings are lower in zones wh
Authors
Paul H. Geissler, David D. Dolton, Rebecca Field, Richard A. Coon, H. Franklin Percival, Don W. Hayne, Lawrence D. Soileau, Ronnie R. George, James H. Dunks, S. Dwight Bunnell
Acid rain effects on wildlife: Some research perspectives
No abstract available.
Authors
R.J. Hall, David B. Peakall
Detecting and describing the structure of an animal's home range
No abstract available.
Authors
P.H. Geissler, M.R. Fuller
The eighty-seventh Christmas Bird Count: OC. Ocean City, MD
No abstract available.
Authors
C.S. Robbins
Release of captive-reared or translocated endangered birds: What do we need to know?
Attempts to evaluate the success of endangered-species reintroduction programs are frustrated by a lack of reliable information on releases of either endangered or nonendangered species. Although many programs have attempted to establish or augment wild populations with captive-reared or wild-caught birds (Williams 1977), there are few published accounts that allow quantitative statements on the s
Authors
J. Michael Scott, J. W. Carpenter
Apparent triploidy in the unisexual Brahminy blind snake, Ramphotyphlops braminus
No abstract available.
Authors
A.H. Wynn, C.J. Cole, A.L. Gardner
Mallard mortality rates on key breeding and wintering areas
No abstract available.
Authors
R.J. Blohm, R. E. Reynolds, J.P. Bladen, J. D. Nichols, J. E. Hines, K. H. Pollock, R.T. Eberhardt