Publications
Explore WARC's science publications.
Filter Total Items: 3377
Reproductive ecology of the ploughshare tortoise (Geochelone yniphora)
No abstract available.
Authors
Miguel Pedrono, Lora L. Smith, Augustin Sarovy, Robert Bourou, Hafany Tiandray
The adventive status of Salvinia minima and S. molestain the southern United States and the related distribution of the weevil Cyrtobagous salviniae
The recent introduction of Salvinia molesta constitutes a serious threat to aquatic systems in the warm temperate regions of the United States. Salvinia minima, the only other member of Salviniaceae present in North America, is considered native by current floras. Evidence is presented which suggests that Salvinia minima was also introduced to North America, probably during the late 1920s and earl
Authors
Colette C. Jacono, Tracy R. Davern, Ted D. Center
Book review: Nonindigenous freshwater organisms: Vectors, biology, and impacts
No abstract available.
Review info: Nonindigenous freshwater organisms: Vectors, biology, and impacts. Edited by Renata Claudi and Joseph H. Leach, 2000. ISBN: 978-1566704496, 464 pp.
Authors
Leo G. Nico, Jeffrey J. Herod
Salvinia molesta: Around the World in 70 Years
No abstract available.
Authors
Colette C. Jacono, B. Pitman
Population dynamics and the ecological stability of obligate pollination mutualisms
Mutualistic interactions almost always produce both costs and benefits for each of the interacting species. It is the difference between gross benefits and costs that determines the net benefit and the per-capita effect on each of the interacting populations. For example, the net benefit of obligate pollinators, such as yucca and senita moths, to plants is determined by the difference between the
Authors
J. Nathaniel Holland, Donald L. DeAngelis
The U.S. National Amphibian Research and Monitoring Initiative and the role of protected areas
In response to concerns about the worldwide status of amphibians (Alford and Richards 1999; Bury 1999; Daszak et al. 1999; Houlahan et al. 2000), Congress in Fiscal Year 2000 provided initial support to agencies of the U.S. Department of the Interior for research and monitoring of amphibians. Most funds came to the U.S. Geological Survey (USGS), but additional funds for the U.S. Fish and Wildlife
Authors
Russell James Hall, Catherine A. Langtimm
The importance of competition in regulating plant species abundance along a salinity gradient
Current theories differ in their predictions concerning the effects of interspecific interactions on species growth and distribution along environmental gradients. In this study, we examined the influence of competition on species composition across a salinity gradient. This work involved three common fresh and brackish marsh species. The three species, Spartina patens, Sagittaria lancifolia, and
Authors
M. K. Greiner La Peyre, James B. Grace, E. Hahn, I.A. Mendelssohn
Climate change in the United States: Implications for fish and wildlife management
No abstract available.
Authors
Virginia Burkett
Interactions between fire and invasive plants in temperate grasslands of North America
A substantial number of invasive grasses, forbs and woody plants have invaded temperate grasslands in North America. Among the invading species are winter annuals, biennials, cool-season perennials, warm-season perennials, vines, shrubs, and trees. Many of these species have been deliberately introduced and widely planted; some are still used for range improvement, pastures, lawns, and as ornament
Authors
James B. Grace, Melinda D. Smith, S.L. Grace, Scott L. Collins, Thomas J. Stohlgren
Alexander von Humboldt (1769-1859): Contributions to knowledge of New World fishes
No abstract available.
Authors
Leo G. Nico
Ecological scale and its implications for freshwater fishes in the Florida Everglades
No abstract available.
Authors
J.C. Trexler, W.F. Loftus, F. Jordan, J.H. Chick, K. L. Kandl, T. C. McElroy, O. L. Bass
Morphometrics, sexual dimorphism, and growth in the Angonoka tortoise (Geochelone yniphora) of western Madagascar
The most recent description of the morphology of the rare endemic Madagascar tortoise,Geochelone yniphora was based on fewer than 20 specimens. We collected morphological data for 200 free‐ranging tortoises from five populations over a four‐year period. Tortoises ranged in size from 43.5 mm carapace length at hatching to a maximum of 481 mm in an adult male. We were able to develop a logistic regr
Authors
Lora L. Smith, Miguel Pedrono, Robert M. Dorazio, Jack Bishko