Publications
Explore WARC's science publications.
Filter Total Items: 3521
Spatial and temporal patterns of nonindigenous fish introductions in the United States Spatial and temporal patterns of nonindigenous fish introductions in the United States
In 1978 biologists in Gainesville, Florida, began compiling records on the distribution and status of nonindigenous fishes known in U.S. inland waters. The database, now in electronic format, currently contains approximately 17,000 records representing more than 500 nonindigenous fish taxa (i.e., species, hybrids, and unidentified forms). Of these taxa, 317 (61%) are native to the United...
Authors
L.G. Nico, P.L. Fuller
Geographic distribution: Ambystoma talpoideum (Mole salamander) Geographic distribution: Ambystoma talpoideum (Mole salamander)
No abstract available.
Authors
C. Kenneth Dodd, Marian L. Griffey
Individual-based models in ecology: An overview Individual-based models in ecology: An overview
No abstract available.
Authors
Donald L. DeAngelis, D. M. Fleming, L.J. Gross, W.F. Wolff
MOAB: a spatially explicit, individual-based expert system for creating animal foraging models MOAB: a spatially explicit, individual-based expert system for creating animal foraging models
We describe the development, structure, and corroboration process of a simulation model of animal behavior (MOAB). MOAB can create spatially explicit, individual-based animal foraging models. Users can create or replicate heterogeneous landscape patterns, and place resources and individual animals of a goven species on that landscape to simultaneously simulate the foraging behavior of...
Authors
J. Carter, John T. Finn
Geographic distribution: Scaphiopus holbrooki (Eastern spadefoot toad) Geographic distribution: Scaphiopus holbrooki (Eastern spadefoot toad)
No abstract available.
Authors
K. J. Irwin, C. Kenneth Dodd, Marian L. Griffey
Comparison of the capabilities of dugongs and West Indian manatees to masticate seagrasses Comparison of the capabilities of dugongs and West Indian manatees to masticate seagrasses
No abstract available.
Authors
Helene Marsh, Cathy A. Beck, Tim Vargo
Book review: Monitoring vertebrate populations Book review: Monitoring vertebrate populations
No abstract available.
Authors
C. Kenneth Dodd
Giant panda (Ailuropoda melanoleuca) population dynamics and bamboo (subfamily Bambusoideae) life history: a structured population approach to examining carrying capacity when the prey are semelparous Giant panda (Ailuropoda melanoleuca) population dynamics and bamboo (subfamily Bambusoideae) life history: a structured population approach to examining carrying capacity when the prey are semelparous
The giant panda, Ailuropoda melanoleuca, is a highly specialized Ursid whose diet consists almost entirely of various species of bamboo. Bamboo (Bambusoideae) is a grass subfamily whose species often exhibit a synchronous semelparity. Synchronous semelparity can create local drops in carrying capacity for the panda. We modeled the interaction of pandas and their bamboo food resources...
Authors
J. Carter, A. S. Ackleh, B.P. Leonard, Hongfang Wang
Manatee response to boating activity in a thermal refuge Manatee response to boating activity in a thermal refuge
Thermal refuges are important for the endangered Florida manatee (Trichechus manatus latirostris) during winter cold periods in temperate latitudes. However, little research has examined impacts on manatees from human disturbance during these critical periods. We studied the effect of recreational boating activity on manatee use of established sanctuaries in the natural thermal refuge...
Authors
C.A. Buckingham, L.W. Lefebvre, J.M. Schaefer, H. I. Kochman
Effects of spatial grouping on the functional response of predators Effects of spatial grouping on the functional response of predators
A unified mechanistic approach is given for the derivation of various forms of functional response in predator-prey models. The derivation is based on the principle-of-mass action but with the crucial refinement that the nature of the spatial distribution of predators and/or opportunities for predation are taken into account in an implicit way. If the predators are assumed to have a...
Authors
C. Cosner, D.L. DeAngelis, J.S. Ault, D.B. Olson
Relationships between hydraulic parameters in a small stream under varying flow and seasonal conditions Relationships between hydraulic parameters in a small stream under varying flow and seasonal conditions
Twenty conservative tracer injections were carried out in the same reach of a small woodland stream in order to determine how variation in discharge and leaf accumulation affect stream hydraulic parameters. The injections were made at various discharge rates ranging from 2-6 to 40 1/s. Five of the injections were made during late autumn, when there were large accumulations of leaves in...
Authors
D.R. Hart, P. J. Mulholland, E.R. Marzolf, D.L. DeAngelis, S.P. Hendricks
Protocol and practice in the adaptive management of waterfowl harvests Protocol and practice in the adaptive management of waterfowl harvests
Waterfowl harvest management in North America, for all its success, historically has had several shortcomings, including a lack of well-defined objectives, a failure to account for uncertain management outcomes, and inefficient use of harvest regulations to understand the effects of management. To address these and other concerns, the U.S. Fish and Wildlife Service began implementation...
Authors
F. Johnson, K. Williams