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Explore WARC's science publications.

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Flood pulsing in wetlands: Restoring the natural hydrological balance Flood pulsing in wetlands: Restoring the natural hydrological balance

The latest cutting-edge research on flood pulsing and wetland restoration in North America. Presenting the latest research from leaders in the field of restoration ecology, Flood Pulsing in Wetlands reflects the current movement to incorporate flood pulsing into wetland restoration efforts. Emphasizing how integral flood pulsing is to successful wetland restoration, the book's...

Ecological and evolutionary conditions for fruit abortion to regulate pollinating seed-eaters and increase plant production Ecological and evolutionary conditions for fruit abortion to regulate pollinating seed-eaters and increase plant production

Coevolved mutualisms, such as those between senita cacti, yuccas, and their respective obligate pollinators, benefit both species involved in the interaction. However, in these pollination mutualisms the pollinator's larvae impose a cost on plants through consumption of developing seeds and fruit. The effects of pollinators on benefits and costs are expected to vary with the abundance of
Authors
J. Nathaniel Holland, Donald L. DeAngelis

Translocations of amphibians: Proven management method or experimental technique Translocations of amphibians: Proven management method or experimental technique

In an otherwise excellent review of metapopulation dynamics in amphibians, Marsh and Trenham (2001) make the following provocative statements (emphasis added): If isolation effects occur primarily in highly disturbed habitats, species translocations may be necessary to promote local and regional population persistence. Because most amphibians lack parental care, they areprime candidates...
Authors
Richard A. Seigel, C. Kenneth Dodd

Multibeam mapping of the Pinnacles region, Gulf of Mexico Multibeam mapping of the Pinnacles region, Gulf of Mexico

Recent USGS mapping shows an extensive deep (~100 m) reef tract occurs on the Mississippi-Alabama outer continental shelf (Figure 1). The tract, known as "The Pinnacles", is apparently part of a sequence of drowned reef complexes along the "40-fathom" shelf edge of the northern Gulf of Mexico (Ludwick and Walton, 1957). It is critical to determine the accurate geomorphology of these deep...
Authors
James V. Gardner, Peter Dartnell, Kenneth J. Sulak

Exploring the effect of drought extent and interval on the Florida snail kite: Interplay between spatial and temporal scales Exploring the effect of drought extent and interval on the Florida snail kite: Interplay between spatial and temporal scales

The paper aims at exploring the viability of the Florida snail kite population under various drought regimes in its wetland habitat. The population dynamics of snail kites are strongly linked with the hydrology of the system due to the dependence of this bird species on one exclusive prey species, the apple snail, which is negatively affected by a drying out of habitat. Based on...
Authors
Wolf M. Mooij, Robert E. Bennetts, Wiley M. Kitchens, Donald L. DeAngelis

Population dynamics and mutualism: Functional responses of benefits and costs Population dynamics and mutualism: Functional responses of benefits and costs

We develop an approach for studying population dynamics resulting from mutualism by employing functional responses based on density‐dependent benefits and costs. These functional responses express how the population growth rate of a mutualist is modified by the density of its partner. We present several possible dependencies of gross benefits and costs, and hence net effects, to a...
Authors
J. Nathaniel Holland, Donald L. DeAngelis, Judith L. Bronstein

Structural instability, multiple stable states, and hysteresis in periphyton driven by phosphorus enrichment in the Everglades Structural instability, multiple stable states, and hysteresis in periphyton driven by phosphorus enrichment in the Everglades

Periphyton is a key component of the Everglades ecosystems. It is a major primary producer, providing food and habitat for a variety of organisms, contributing material to the surface soil, and regulating water chemistry. Periphyton is sensitive to the phosphorus (P) supply and P enrichment has caused dramatic changes in the native Everglades periphyton assemblages. Periphyton also...
Authors
Quan Dong, Paul V. McCormick, Fred H. Sklar, Donald L. DeAngelis

Seasonal reproductive cycles for Florida largemouth bass Seasonal reproductive cycles for Florida largemouth bass

No abstract available.
Authors
Timothy S. Gross, Maria S. Sepulveda, Carla M. Wieser, Jon J. Wiebe, Trenton R. Schoeb, Nancy D. Denslow, William E. Johnson

Community food webs Community food webs

Community food webs describe the feeding relationships, or trophic interactions, between the species of an ecological community. Both the structure and dynamics of such webs are the focus of food web research. The topological structures of empirical food webs from many ecosystems have been published on the basis of field studies and they form the foundation for theory concerning the mean...
Authors
Donald L. DeAngelis

Interspecific differences in susceptibility to competition and predation in a species-pair of larval amphibians Interspecific differences in susceptibility to competition and predation in a species-pair of larval amphibians

Fundamental issues in the study of predator-prey interactions include addressing how prey coexist with their predators and, moreover, whether predators promote coexistence among competing prey. We conducted a series of laboratory experiments with a freshwater assemblage consisting of two predators that differed in their foraging modes (a crayfish, Procambarus sp., and the western...
Authors
Susan C. Walls, David G. Taylor, Charlena M. Wilson
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