Movements and habitat requirements of radio tagged manatees in southwest Florida: Implications for restoration assessment
J.P. Reid, Susan M. Butler, Dean E. Easton, Bradley Stith
2003, Conference Paper, Proceedings of Joint Conference on the Science and Restoration of the Greater Everglades and Florida Bay Ecosystem, April 13-18, 2003, Palm Harbor, Florida
No abstract available....
Habitat characteristics associated with abundance of band-tailed pigeons and use of mineral sites in the Pacific Northwest
C.T. Overton
2003, Thesis
No abstract available at this time...
Montioring Giant Garter Snakes at Colusa National Wildlife Refuge: 2002 Progress Report
Glenn D. Wylie, Michael L. Casazza, Lisa L. Martin
2003, Report
No abstract available at this time...
Responses of small terrestrial vertebrates to roads in a coastal sage scrub ecosystem
C.S. Brehme
2003, Thesis
No abstract available at this time...
Surveys for the Least Bell's Vireo and Southwestern Willow Flycatcher at the San Luis Rey River. 2002 Annual Summary
B.L. Peterson, B.E. Kus, M.J. Wellik
2003, Report
No abstract available at this time...
Research highlight: fire and invasive annual grasses in western ecosystems
M.L. Brooks
2003, Report
No abstract available at this time...
Fuels and fire regimes in creosostebush, blackbrush, and interior chaparral shrublands
M.L. Brooks, T. C. Esque, T. Duck
2003, Report
No abstract available at this time...
Multiple pathways for woody plant establishment on floodplains at local to regional scales
D.J. Cooper, D.C. Andersen, Rodney A. Chimner
2003, Journal of Ecology (91) 182-196
1. The structure and functioning of riverine ecosystems is dependent upon regional setting and the interplay of hydrologic regime and geomorphologic processes. We used a retrospective analysis to study recruitment along broad, alluvial valley segments (parks) and canyon segments of the unregulated Yampa River and the regulated Green River in...
The revegetation of disturbed areas associated with roads at Lake Mead National Recreation Area, Nevada
S.J. Scoles, L.A. DeFalco
2003, Report
No abstract available at this time...
Tracking spring migration of northern pintails with satellite telemetry
M. R. Miller, John Y. Takekawa, D.L. Orthmeyer, J. P. Fleskes, Michael L. Casazza, M.W. Perry
2003, Report
No abstract available at this time...
Evaluating options for revegetation following a catastrophic fire in a pinyon-juniper community at Grand Canyon/Parashant National Monument, Arizona
S.J. Scoles, T. C. Esque, L.A. DeFalco, S.E. Eckert, D.F. Haines
2003, Report
No abstract available at this time...
Fire behavior during a prescribed experimental fire in desert tortoise habitat on the Parashant National Monument in Pakoon Basin, Arizona
T. C. Esque, S.E. Eckert, D.F. Haines, R.S. Schwartz, C.R. Tracy
2003, Report
No abstract available at this time...
Mortality of adult Joshua trees (Yucca brevifolia) due to small mammal herbivory at Joshua Tree National Park, California
T. C. Esque, D.F. Haines, L.A. DeFalco, J.E. Rodgers, K.A. Goodwin, S.J. Scoles
2003, Report
No abstract available at this time...
Variation in reproduction of the desert tortoise (Gopherus agassizii) in the Mojave Desert of southern Nevada in relation to body size, primary production and climate
K.A. Goodwin, T. C. Esque, P.A. Medica, M.B. Saethre, R.W. Marlow, C.R. Tracy
2003, Report
No abstract available at this time...
Wolf population dynamics
Todd K. Fuller, L. David Mech, Jean Fitts Cochrane
L. David Mech, Luigi Boitani, editor(s)
2003, Book chapter, Wolves: Behavior, ecology, and conservation
A large, dark wolf poked his nose out of the pines in Yellowstone National Park as he thrust a broad foot deep into the snow and plowed ahead. Soon a second animal appeared, then another, and a fourth. A few minutes later, a pack of thirteen lanky wolves had filed...
Physiological ecology of the invasive annual grass Bromus madritensis ssp. Rubens and its interactions with native Mojave Desert species
L.A. DeFalco
2003, Thesis
No abstract available at this time...
Small mammals within riparian habitats of a regulated and unregulated aridland river
M.J. Falck, K.R. Wilson, D.C. Andersen
2003, Western North American Naturalist (63) 35-42
In northwestern Colorado, flow regulation on the Green River has created a transitional plant community that features encroachment by upland vegetation into cottonwood (Populus fremontii)-dominated, riparian forest on topographically high floodplain sites and reduced cottonwood regeneration on low floodplain sites. To assess how these changes might have affected small mammal...
Effects of river flow regime on cottonwood leaf litter dynamics in semi-arid northwestern Colorado
D.C. Andersen, S. M. Nelson
2003, Southwestern Naturalist (48) 188-201
We compared production and breakdown of Fremont cottonwood (Populus deltoides wislizenii) leaf litter at matched floodplain sites on the regulated Green River and unregulated Yampa River in semi-arid northwestern Colorado. Litter production under trees was similar at sites in 1999 (250 g/m2, oven-dry) but lower in 2000 (215 and 130...
Annual survival and population estimates of Mountain Plovers in Southern Phillips County, Montana
S.J. Dinsmore, Gary C. White, F.L. Knopf
2003, Ecological Applications (13) 1013-1026
Information about the demography of declining species is especially relevant to their conservation and future recovery. Knowledge of survival rates and population size can be used to assess long-term viability and population trends, both of which are of interest to conservation biologists. We used capture–recapture techniques to study the demography...
Beaver (Castor canadensis) in heavily browsed environments
Bruce W. Baker
2003, Lutra (46) 173-181
Beaver (Castor canadensis) populations have declined or failed to recover in heavily browsed environments. I suggest that intense browsing by livestock or ungulates can disrupt beaver-willow (Salix spp.) mutualisms that likely evolved under relatively low herbivory in a more predator-rich environment, and that this interaction may explain beaver and willow...
Global carbon sequestration in tidal, saline wetland soils
G.L. Chmura, S.C. Anisfeld, Donald R. Cahoon, J.C. Lynch
2003, Global Biogeochemical Cycles (17)
Wetlands represent the largest component of the terrestrial biological carbon pool and thus play an important role in global carbon cycles. Most global carbon budgets, however, have focused on dry land ecosystems that extend over large areas and have not accounted for the many small, scattered carbon-storing ecosystems such as tidal saline wetlands. We compiled data for 154 sites in mangroves and salt marshes from...
Fire and exotics in the Mojave Desert: An irreversible change? A state-transition model for blackbrush (Coleogyne ramosissima) habitat
D.F. Haines, T. C. Esque, L.A. DeFalco, S.J. Scoles, M.L. Brooks, R. H. Webb
2003, Book chapter, SIR 2004-2005
No abstract available at this time...
Managed forest reserves: preserving diversity
John Tappeiner, Nathan Poage, Janet L. Erickson
2003, Fact Sheet 034-03
<span data-sheets-value="{"1":2,"2":"Background\n\nAs part of the Northwest Forest Plan, large areas have been designated on many federal forests in western Oregon to provide critical habitat for plants and animals that are associated with old-growth habitat. Some of the structural characteristics often considered typical of old forests include large-diameter overstory trees, large...
The Role of stocking in the reestablishment and augmentation of native fish in the Lower Colorado River mainstream (1998-2002)
Gordon Mueller
2003, Open-File Report 2003-288
The Colorado River has experienced dramatic physical and biological change. Rated as the fifth largest river in the USA by volume, today its waters seldom reach the sea. Water diversions gradually reduce its flow to a point where its last remaining waters are diverted at Morales Dam leaving nearly 100...
Evaluating sources of job satisfaction: A survey of U.S. Fish and Wildlife refuge managers and biologists
Phadrea D. Ponds, Ayeisha A. Brinson, Delwin Benson
2003, Information and Technology Report 2003-0004
The following summary consists of revised excerpts from the thesis study that was conducted in 2000-2002 by Ayeisha Brinson, Colorado State University (Brinson, 2002). The purpose of this report is to provide the U.S. Fish and Wildlife Service (USFWS) with additional finding related to sources of job satisfaction....
