Publications
This is a list of publications written by Patuxent employees since Patuxent opened in 1939. To search for Patuxent's publications by author or title, please click below to go to the USGS Publication Warehouse.
Filter Total Items: 8128
Potential roadside biases due to habitat changes along Breeding Bird Survey routes Potential roadside biases due to habitat changes along Breeding Bird Survey routes
Breeding Bird Surveys (BBS) are conducted along roadside routes to enable a large geographic area to be surveyed. Yet the potential biases of sampling populations only from roadsides have received little attention. We sampled aerial photography of BBS routes taken in the mid-1960s and late-1980s to evaluate whether habitat changes that occurred along roadsides were also occurring in the
Authors
C.M.E. Keller, J.T. Scallan
Role of banding in forest conservation strategy in eastern Guatemala Role of banding in forest conservation strategy in eastern Guatemala
In response to a request from FUNDAECO, a Guatemalan non-government organization, we worked with them to develop a conservation strategy for the Cerro San Gil Protected Area and surrounding private lands. Volunteer banders from a dozen states and Canadian provinces assisted in long-term monitoring of populations of resident and migratory species through banding and point counts...
Authors
C.S. Robbins, B.A. Dowell, I. Arias, A. Cerezo B.
Predicting chick survival and productivity of Roseate Terns from data on early growth Predicting chick survival and productivity of Roseate Terns from data on early growth
Early growth of Roseate Tern (Sterna dougallii) chicks is a strong predictor of chick survival and hence of productivity. We developed discriminant functions to predict chick survival from body-masses measured during the first 3 days of life. Productivity is estimated by assuming that almost all A-chicks (first-hatched in each brood) survive to fledging, and using the discriminant...
Authors
I.C.T. Nisbet, Jeff S. Hatfield, W.A. Link, J. A. Spendelow
Sora rail studies on the Patuxent River, Maryland Sora rail studies on the Patuxent River, Maryland
The freshwater marshes of the tidal Patuxent River are well known for their annual fall concentration of migrant soras (Porzana carolina) and were formerly the most famous rail hunting grounds in the Chesapeake Bay region. Because of concern over the apparent long-term decline in number of soras and the decline in the quality of the Patuxent marshes, especially the loss of wild rice...
Authors
G. Michael Haramis, Gregory D. Kearns
Research: Materials and techniques Research: Materials and techniques
No abstract available.
Authors
R.W. McDiarmid, R. Altig
Historical land cover changes in the Great Lakes Region Historical land cover changes in the Great Lakes Region
Two different methods of reconstructing historical vegetation change, drawing on General Land Office (GLO) surveys and fossil pollen deposits, are demonstrated by using data from the Great Lakes region. Both types of data are incorporated into landscape-scale analyses and presented through geographic information systems. Results from the two methods reinforce each other and allow...
Authors
K.L. Cole, M.B. Davis, F. Stearns, G. Guntenspergen, K. Walker
A spatial and genetic analysis of Cowbird host selection A spatial and genetic analysis of Cowbird host selection
Our study of brood parasitism patterns in forest communities revealed the egg-laying frequency and host selection patterns of female cowbirds. By integrating molecular genetics and spatial data, we have the first published estimate on cowbird laying rates in field studies. The 29 females in the study laid only 1-5 eggs each, much lower than previous estimates from captive cowbirds and
Authors
D.C. Hahn, J.A. Sedgwick, I.S. Painter, N.J. Casna
Demographic parameter estimation for experimental landscape studies on small mammal populations Demographic parameter estimation for experimental landscape studies on small mammal populations
No abstract available.
Authors
J.D. Nichols, C.J. Coffman
[Book review] A Neotropical Companion: An Introduction to the Animals, Plants, and Ecosystems of the New World Tropics,. second edition, by John Kricher, Princeton University Press, 1997 [Book review] A Neotropical Companion: An Introduction to the Animals, Plants, and Ecosystems of the New World Tropics,. second edition, by John Kricher, Princeton University Press, 1997
No abstract available.
Authors
C.S. Robbins