Publications
Explore WARC's science publications.
Filter Total Items: 3377
Bird communities, roads and development: Prospects and constraints of applying empirical models
Our objectives were to explain the prospects and constraints of applying empirical models that relate bird community metrics to broad-scale characteristics of roads and development. We explored the practical value of regression models that were derived for a large protected area in the Chihuahuan Desert. These models related bird species richness, relative abundance, or probability of occurrence t
Authors
K.J. Gutzwiller, W.C. Barrow
Influences of salinity and shade on seedling photosynthesis and growth of two mangrove species, Rhizophora mangle and Bruguiera sexangula, introduced to Hawaii
Rhizophora mangle was first introduced to Hawaii in 1902 to promote shoreline stabilization. Intertidal competition with native and introduced salt marsh species was low, and beyond the early 1920s, mangrove forests expanded rapidly. An additional mangrove species, Bruguiera sexangula, was introduced in 1922 and currently co-occurs with R. mangle in only a few stands on the north shore and windwar
Authors
K. W. Krauss, J. A. Allen
Predation of caterpillars on understory saplings in an Ozark forest
Predators of caterpillars (Lepidoptera larvae) can indirectly enhance economic gains from plant resources by reducing herbivore damage to plants. For this study, we directly observed predation of caterpillars on understory trees in the Ozarks. Our objectives were to determine the relative importance of diurnal guilds of caterpillar predators, the time of day most diurnal predation events occur, an
Authors
J.S. Lichtenberg, D.A. Lichtenberg
Monitoring the coral disease, plague type II, on coral reefs in St. John, U.S. Virgin Islands
In July 1997, conspicuous white patches of necrotic tissue and bare skeleton began to appear on scleractinian corals in several bays around St. John, US Virgin Islands. Analysis of diseased coral tissue from five different species confirmed the presence of a Sphingomonas-like bacterium, the pathogen for plague type II. To date, 14 species of hard corals have been affected by plague type II around
Authors
J. Miller, C. Rogers, R. Waara
Measurement of fecal glucocorticoids in parrotfishes to assess stress
Coral reefs are in decline worldwide from a combination of natural and human forces. The environmental compromises faced by coral reef habitats and their associated fishes are potentially stressful, and in this study we examined the potential for assessing stress levels in coral reef fish. We determined the feasibility of using fecal casts from parrotfishes for remote assessment of stress-related
Authors
J.W. Turner, R. Nemeth, C. Rogers
Nuclear transfer of synchronized African wild cat somatic cells into enucleated domestic cat oocytes
The African wild cat is one of the smallest wild cats and its future is threatened by hybridization with domestic cats. Nuclear transfer, a valuable tool for retaining genetic variability, offers the possibility of species continuation rather than extinction. The aim of this study was to investigate the ability of somatic cell nuclei of the African wild cat (AWC) to dedifferentiate within domestic
Authors
M.C. Gomez, J.A. Jenkins, A. Giraldo, R.F. Harris, A. King, B.L. Dresser, C.E. Pope
Habitat selection of the channel darter, Percina (Cottogaster) copelandi, a surrogate for the imperiled pearl darter, Percina aurora
Percina (Cottogaster) aurora is an imperiled species under consideration for listing by the U.S. Fish and Wildlife Service. To better understand habitat use of P. aurora, we studied a related and more abundant Cottogasterspecies, Percina copelandi, from the Ouachita River, Arkansas. We used a laboratory stream system to examine mesohabitat selection (pools versus riffles) and microhabitat selectio
Authors
Pamela J. Schofield, Stephen T. Ross
Using strip-transect aerial surveys to estimate manatee abundance and population trend in the Ten Thousand Islands Region of southwest Florida
No abstract available.
Authors
Dean E. Easton, Lynn W. Lefebvre, T.J. Doyle
Running
No abstract available.
Authors
C.M. Duarte, J. Amthor, Donald L. DeAngelis, L.A. Joyce, R.J. Maranger, M. L. Pace, J. Pastor
In praise of mechanistically-rich models
Quantitative models are crucial to almost every area of ecosystem science. They provide a logical structure that guides and informs empirical observations of ecosystem processes. They play a particularly crucial role in synthesizing and integrating our understanding of the immense diversity of ecosystem structure and function. Increasingly, models are being called on to predict the effects of huma
Authors
Donald L. DeAngelis, Wolf M. Mooij
The importance of spatial scale in the modeling of aquatic ecosystems: Chapter 24
No abstract available
Authors
Donald L. DeAngelis, Wolf M. Mooij, A. Basset