Environmental auditing: Capabilities and management utility of recreation impact monitoring programs
J. L. Marion
1995, Environmental Management (19) 763-771
A recreation impact monitoring system was developed and applied in 1984?1986 and in 1991 to all backcountry river-accessed campsites within Delaware Water Gap National Recreation Area, Pennsylvania and New Jersey. Results suggest that actions implemented by park managers in response to problems identified by the initial survey were highly effective...
The value and vulnerability of small estuarine islands for conserving metapopulations of breeding waterbirds
R.M. Erwin, Jeff S. Hatfield, T.J. Wilmers
1995, Biological Conservation (71) 187-191
Compelling arguments for preserving large habitat ‘islands’ have been made for a number of animal groups, but most commonly for terrestrial birds. We argue that, for many species of waterbirds nesting in coastal estuaries, maintaining numerous small islands may be a more effective management strategy than maintaining larger islands or...
Composition, abundance, biomass, and production of macrofauna in a New England estuary: Comparisons among eelgrass meadows and other nursery habitats
K.L. Heck Jr., K.W. Able, C. T. Roman, M.P. Fahay
1995, Estuaries (18) 379-389
Quantitative suction sampling was used to characterize and compare the species composition, abundance, biomass, and secondary production of macrofauna inhabiting intertidal mud-flat and sand-flat, eelgrass meadow, and salt-marsh-pool habitats in the Nauset Marsh complex, Cape Cod, Massachusetts (USA). Species richness and abundance were often greatest in eelgrass habitat, as was...
A complex alloantigen system in Florida sandhill cranes, Grus canadensis pratensis: Evidence for the major histocompatibility (B) system
S.I. Jarvi, G.F. Gee, M.M. Miller, W.E. Briles
1995, Journal of Heredity (86) 348-353
The B blood group system constitutes the major histocompatibility complex (Mhc) in birds. The Mhc is a cluster of genes largely devoted to the processing and presentation of antigen. The Mhc is highly polymorphic in many species and, thus, useful in the evaluation of genetic diversity for fitness traits within populations of a variety of animals....
Toxicity and bioaccumulation of sediment-associated contaminants using freshwater invertebrates: A review of methods and applications
C.G. Ingersoll, G.T. Ankley, D.A. Benoit, E.L. Brunson, G.A. Burton, F.J. Dwyer, R.A. Hoke, P.F. Landrum, T. J. Norberg-King, P. V. Winger
1995, Environmental Toxicology and Chemistry (14) 1885-1894
This paper reviews recent developments in methods for evaluating the toxicity and bioaccumulation of contaminants associated with freshwater sediments and summarizes example case studies demonstrating the application of these methods. Over the past decade, research has emphasized development of more specific testing procedures for conducting 10-d toxicity tests with the...
Distribution and abundance of Emoia slevini (Scincidae) in the Mariana Islands
M. J. McCoid, G.H. Rodda, T. H. Fritts
1995, Herpetological Review (26) 70, 72
Evidence from tooth surface morphology for a posterior maxillary origin of the proteroglyph fang
Thomas H. Fritts, K. Jackson
1995, Amphibia-Reptilia (16) 273-288
Although the front-fanged venom delivery system of the Elapidae is believed to be derived from an aglyphous or opisthoglyphous colubroid ancestor, opinion is divided as to the end of the maxilla on which the proteroglyph fang originated. This study was undertaken to determine whether the evolutionary precursor of the proteroglyph...
Beach-steps: An evolutionary perspective
B.O. Bauer, J.R. Allen
1995, Marine Geology (123) 143-166
Field observation of contrasting beach-step behavior at Canaveral National Seashore on two subsequent days when incident-wave conditions in the inner surf zone were similar prompted this re-examination of our conceptual and quantitative understanding of beach steps. These lower-foreshore features are more complex...
Accumulation in and effects of lead and cadmium on waterfowl and passerines in northern Idaho
L. J. Blus, Charles J. Henny, D. J. Hoffman, R. A. Grove
1995, Environmental Pollution (89) 311-318
Waterfowl and passerines in northern Idaho in 1987 had high levels of lead in their blood and tissues that originated primarily from mining and smelting activities. Four Canada geese (Branta canadensis) and one common goldeneye (Bucephala clangula) found dead contained 8 to 38 μg/g (wet mass) of lead in their...
Reliability of the Breeding Bird Survey: Effects of restricting surveys to roads
J. Bart, M. Hofschen, B.G. Peterjohn
1995, The Auk (112) 758-761
Breeding Bird Surveys (BBS), which are widely used to monitor trends in avian populations (e.g. Robbins et al. 1989, Sauer and Droege 1993), are conducted along roads but are used to infer changes in regionwide populations. Such inferences may be inaccurate if trends in habitat along roads differ from regionwide...
Statistics and ornithology: State-of-the-art data analysis for studies of marked birds. Proceedings of the 4th EURING Technical Meeting, 19-24 September, 1994
P.M. North, J.D. Nichols
1995, Journal of Applied Statistics (22) 553-1081
Captive and field-tested radio attachments for bald eagles
D.A. Buehler, J.D. Fraser, M.R. Fuller, L.S. McAllister, J.K.D. Seegar
1995, Journal of Field Ornithology (66) 173-180
The effects of two radio transmitter attachment techniques on captive and one attachment technique on wild Bald Eagles (Haliaeetus leucocephalus) were studied. A Y-attachment method with a 160-g dummy transmitter was less apt to cause tissue damage on captive birds than an X-attachment method, and loosely fit...
Colony differences in response to trapping in roseate terns
J. Burger, I.C.T. Nisbet, James M. Zingo, J. A. Spendelow, C. Safina, M. Gochfeld
1995, Condor (97) 263-266
Both members of seabird pairs are normally required to fledge young. Seabirds that nest in sites accessible to predators usually have one parent in attendance during the egg/chick phase. Time devoted to foraging can vary with individual skill and age, prey availability and abundance (Seamy 1978), and distance to...
North American migratory bird management issues
M.H. Wilson, D.A. Ryan
1995, Conference Paper, Wildlife Society Annual Conference
As human population and industry have grown in North America, land-use practices have greatly altered the landscape. As a result of this changed landscape, several migratory bird populations have declined in recent years. For waterbirds, there have been several milestones: the 1986 North American Waterfowl Management Plan (NAWMP)...
Texas rat snake (Elaphe obsoleta lindheimeri) eggs and hatchlings from a communal nest
D. R. Clark Jr., G.W. Pendleton
1995, Southwestern Naturalist (40) 203-207
No abstract available....
Comments on the status of revived old names for some North American birds
Richard C. Banks, M.R. Browning
1995, The Auk (112) 633-648
We discuss 44 instances of the use of generic, specific, or subspecific names that differ from those generally in use for North American (sensu AOU 1957) birds. These names are generally older than the names presently used and have been revived on the basis of priority. We examine the basis...
Inter-relation of cytochrome P450 and contaminants burdens in sibling heron embryos and nestlings
B. Rattner, M. Melancon, T. Custer, R. Hothem
1995, Society of Environmental Toxicology and Chemistry, annual meeting abstract book (16) 138 (abstr
Hepatic cytochrome P450-associated monooxygenase activities were measured in 11-day-old nestling black-crowned night-herons (Nycticorax nycticorax) collected from a reference site (next to the Chincoteague National Wildlife Refuge, Virginia) and three polluted sites (Cat Island, Green Bay, Lake Michigan, Wisconsin; Bair Island, San Francisco Bay, California; West Marin Island, San Francisco Bay,...
Effects of polychlorinated dibenzo-p-dioxins and dibenzofurans on nesting wood ducks (Aix Sponsa) at Bayou Meto, Arkansas
Donald H. White, David J. Hoffman
1995, Environmental Health Perspectives (103) 37-39
Wood ducks (Aix sponsa) nesting along Bayou Meto downstream from a hazardous waste site in central Arkansas were contaminated with polychlorinated dibenzo-p-dioxins (PCDDs) and dibenzofurans (PCDFs). Residues in eggs, based on 2,3,7,8-tetrachlorodibenzo-p-dioxin equivalents (TCDD-EQ), ranged up to 611 parts per trillion (ppt), and egg arithmetic means were 90-fold higher at...
Suggested aviary design and procedures to reduce mortality of captive warblers
Carol I. Bocetti, C.I. Swayne
1995, Wildlife Society Bulletin (23) 723-725
Can we manage for biological diversity in the absence of science?
D.L. Trauger, R.J. Hall
1995, Conference Paper, Wildlife Society Annual Conference
Conservation of biological diversity is dependent on sound scientific information about underlying ecological processes. Current knowledge of the composition, distribution, abundance and life cycles of most species of plants and animals is incomplete, insufficient, unreliable, or nonexistent. Contemporary managers are also confronted with additional levels of complexity related...
Organochlorine residues in bat guano from nine Mexican caves, 1991
Donald R. Clark Jr., A. Moreno-Valdez, Miguel A. Mora
1995, Ecotoxicology (4) 258-265
Samples of bat guano, primarily from Mexican free-tailed bats (Tadarida brasiliensis), were collected at nine bat roosts in caves in northern and eastern Mexico and analysed for organochlorine residues. DDE, the most abundant residue found in each cave, was highest (0.99 p.p.m. dry weight) at Ojuela Cave, Durango. Other studies...
Third specimen of Nuttall's woodpecker (Picoides nuttallii) in Oregon from Jackson County and comments on earlier records
M.R. Browning, S.P. Cross
1995, Oregon Birds (20) 119-120
Do downy woodpeckers migrate?
M.R. Browning
1995, Journal of Field Ornithology (66) 12-21
Seasonal movement and migration of Downy Woodpeckers (Picoides pubescens) are indicated in several sources in the literature. Analyses of 3784 recoveries of banded birds, with other data, indicate that the species is resident, and that movements of a few individuals may indicate dispersal....
Preliminary raptor surveys in western Mongolia
D. H. Ellis, Merlin H. Ellis, Pu Tsengeg
1995, Journal of Raptor Research (29) 55 (abs)
Raptors were observed on a 5200 km expedition from Ulaan Baatar through the Hangay Mountains to the Russian Altay Mountains with return through the Gobi Altay Mountains. The focus of the expedition was on nesting ecology of the Saker (Falco cherrug) and Altay falcons (F. altaicus) (25 eyries were located),...
[Book review] The Eastern Screech Owl: Life History, Ecology and Behavior in the Suburbs and Countryside, by Frederick Gehlback
D.C. Hahn
1995, Wildlife Review (250) 454-454
Review of: Eastern Screech Owl: Life History, Ecology, and Behavior in the Suburbs and Countryside. Frederick R. Gehlbach. Issue 16; Issue 2008 of W. L. Moody Jr. Natural History Series. Texas A&M University Press; 1st edition (November 1994). ISBN: 0890966095. For ornithologists and ecologists alike, Fred Gehlbach's book promises to...
