Publications
These publications showcase the significant science conducted in our Science Centers.
Filter Total Items: 16740
The current status of amphibian and reptile ecotoxicological research The current status of amphibian and reptile ecotoxicological research
The extent of research conducted on the effects of contaminants on reptiles and amphibians has been scant compared to that of other vertebrate classes including fishes, birds and mammals. In a review of literature from 1972 until 1998 we found that only about 2.7% of the papers published on ecotoxicology in vertebrates concerned amphibians and 1.4% for reptiles. Most studies on amphibian
Authors
D. W. Sparling, C.A. Bishop, G. Linder
Estimating survival of neotropical-nearctic migratory birds: Are they dead or just dispersed? Estimating survival of neotropical-nearctic migratory birds: Are they dead or just dispersed?
The most common method for estimating adult survival in site specific demographic studies of Neotropical-Nearctic migratory bird populations is by measuring the return rate of marked individuals. Return rate historically has been defined as the ratio of resighted birds to the total number banded (i.e., with bands on) the prior year, and has been used as a 'minimum number known alive'...
Authors
M.R. Marshall, R.R. Wilson, R.J. Cooper
Development of management objectives for breeding birds in the Mississippi Alluvial Valley Development of management objectives for breeding birds in the Mississippi Alluvial Valley
We used a six-step process to set habitat objectives and population goals for breeding birds in the Mississippi Alluvial Valley. Specifically, we used existing empirical studies and mathematically derived viable population estimates to define habitat objectives and population goals for bottomland hardwood forest, the most important habitat type in this physiographic area. Although...
Authors
A.J. Mueller, D.J. Twedt, C.R. Loesch
Population and habitat assessment: Monitoring bird populations over large areas: Introduction Population and habitat assessment: Monitoring bird populations over large areas: Introduction
Monitoring provides essential information about status and change in bird populations. For Neotropical Migrant Birds (NTMBs), the North American Breeding Bird Survey (BBS) has been particularly influential in documenting regional population change and often is cited as justification for management actions. However, as with most bird surveys, the design of the BBS, and the geographic...
Authors
J.R. Sauer, R.J. Cooper
Conservation planning and monitoring avian habitat Conservation planning and monitoring avian habitat
Migratory bird conservation plans should not only develop population goals, they also should establish attainable objectives for optimizing avian habitats. Meeting population goals is of paramount importance, but progress toward established habitat objectives can generally be monitored more easily than can progress toward population goals. Additionally, local or regional habitat...
Authors
D.J. Twedt, C.R. Loesch
Herons in North America, Central America and the West Indies Herons in North America, Central America and the West Indies
No abstract available.
Authors
Robert W. Butler, J.A. Kushlan, I.J. Davidson
The role of helicopters in seabird censusing The role of helicopters in seabird censusing
The advantages and disadvantages of fixed-wing, helicopter, photographic, vidoegraphic, and ground-count methods of surveying and censusing seabirds are described and compared. Critical terminology is distinguished, and use of small helicopters with multiple, trained observers is firmly recommended for work with diurnal, non-burrow-nesting seabirds in the West Indies and elsewhere...
Authors
P. A. Buckley, F. G. Buckley
Manual of Avian Medicine Manual of Avian Medicine
No abstract available.
Authors
Glenn H. Olsen, S.E. Orosz
Statistical Approaches to Interpretation of Local, Regional, and National Highway-Runoff and Urban-Stormwater Data Statistical Approaches to Interpretation of Local, Regional, and National Highway-Runoff and Urban-Stormwater Data
Decision makers need viable methods for the interpretation of local, regional, and national-highway runoff and urban-stormwater data including flows, concentrations and loads of chemical constituents and sediment, potential effects on receiving waters, and the potential effectiveness of various best management practices (BMPs). Valid (useful for intended purposes), current, and...
Authors
Gary D. Tasker, Gregory E. Granato
National Fish Strain Registry - Catfish (NFSR-C) Operating Manual National Fish Strain Registry - Catfish (NFSR-C) Operating Manual
No abstract available at this time
Authors
H. L. Kincaid, L.J. Mengel, M.J. Gray, S. Brimm
Diet composition and fish consumption of double-crested cormorants from the Little Galloo Island colony of eastern Lake Ontario in 1999 Diet composition and fish consumption of double-crested cormorants from the Little Galloo Island colony of eastern Lake Ontario in 1999
No abstract available at this time
Authors
J. H. Johnson, R. M. Ross, R.D. McCullough
Bias survival estimates from tag-recovery models where catch-and-release is common, with an example from Atlantic striped bass (Morone saxatilis) Bias survival estimates from tag-recovery models where catch-and-release is common, with an example from Atlantic striped bass (Morone saxatilis)
No abstract available.
Authors
D. R. Smith, K.P. Burnham, D.M. Kahn, X. He, C.J. Goshorn, K.A. Hattala, A.W. Kahnle