Diet and population metrics of the introduced blue catfish population in the Altamaha, River, GA
Timothy F. Bonvechio, Cecil A. Jennings
2011, Conference Paper, Proceedings of the Southeastern Association of Fish and Wildlife Agencies
Blue catfish (Ictalurus furcatus) were first detected in the Altamaha River, Georgia, during an access creel survey in 2005 and subsequently in 2006 during annual ictalurid sampling. Introduction of this species in the Altamaha River is believed to have occurred via escape from normal upstream reservoir releases from Lake Sinclair...
Chapter 8: Occurrence of large and medium-sized mammals: Occurrence but not count models predict pronghorn distribution
Matthias Leu, Steve E. Hanser, Cameron L. Aldridge, Scott E. Nielsen, Lowell H. Suring, Steven T. Knick
2011, Book chapter, Sagebrush ecosystem conservation and management: Ecoregional assessment tools and models for the Wyoming Basins
Management of medium to large-sized terrestrial mammals (Antilocapridae, Canidae, Cervidae, Leporidae, Mustelidae, Ochotonidae) in the western United States is multifaceted and complex. Species in this group generally are charismatic and provide economic opportunities, although others are considered a nuisance at one extreme or are listed as species of conservation concern...
Shared bacterial and viral respiratory agents in bighorn sheep (Ovis canadensis), domestic sheep (Ovis aries), and goats (Capra hircus) in Montana
David S. Miller, Glen C. Weiser, Keith Aune, Brent Roeder, Mark Atkinson, Neil Anderson, Thomas J. Roffe, Kim A. Keating, Phillip L. Chapman, Cleon Kimberling, Jack C. Rhyan, P. Ryan Clarke
2011, Veterinary Medicine International (2011)
Transmission of infectious agents from livestock reservoirs has been hypothesized to cause respiratory disease outbreaks in bighorn sheep (Ovis canadensis), and land management policies intended to limit this transmission have proven controversial. This cross-sectional study compares the infectious agents present in multiple populations of bighorn sheep near to and distant...
Chapter 7: Occurrence and abundance of ants, reptiles, and mammals
Steve E. Hanser, Matthias Leu, Cameron L. Aldridge, Scott E. Nielsen, Mary M. Rowland, Steven T. Knick
2011, Book chapter, Sagebrush ecosystem conservation and management: Ecoregional assessment tools and models for the Wyoming Basins
Sagebrush (Artemisia spp.)- associated wildlife are threatened by habitat loss and fragmentation and by impacts associated with anthropogenic disturbances, including energy development. Understanding how species of concern as well as other wildlife including insects, reptiles, and mammals respond to type and spatial scale of disturbance is critical to managing future...
Hepatic element concentrations of lesser scaup (Aythya affinis) during spring migration in the upper Midwest
Angela E. Pillatzki, Regg D. Neiger, Steven R. Chipps, Kenneth F. Higgins, Nancy Thiex, Alan D. Afton
2011, Archives of Environmental Contamination and Toxicology (61) 144-150
High concentrations of some hepatic elements might be contributing to the decline of the continental lesser scaup (Aythya affinis) population. We evaluated hepatic element concentrations of male and female lesser scaup collected from the upper Midwest (Iowa, Minnesota, North Dakota, and South Dakota) during the 2003 and 2004 spring migrations....
Synthesis: Chapter 19
L.H. Pardo, L.H. Geiser, M.E. Fenn, C. T. Driscoll, C.L. Goodale, E.B. Allen, Jill Baron, R. Bobbink, W.D. Bowman, C.M. Clark, B. Emmett, F.S. Gilliam, T. Greaver, S.J. Hall, E.A. Lilleskov, L. Liu, J.A. Lynch, K. Nadelhoffer, S.S. Perakis, M. J. Robin-Abbott, J.L. Stoddard, K. C. Weathers
2011, General Technical Report NRS-80
Human activity in the last century has led to a substantial increase in nitrogen (N) emissions and deposition (Galloway et al. 2003). Because of past, and, in some regions, continuing increases in emissions (Lehmann et al. 2005, Nilles and Conley 2001), this N deposition has reached a level that has...
Northwestern forested mountains: Chapter 8
W.D. Bowman, Jill Baron, L.H. Geiser, M.E. Fenn, E.A. Lilleskov
2011, General Technical Report NRS-80
Th e Northwestern Forested Mountains are ecologically diverse and geographically widespread, encompassing the mountain ecosystems of central and northwestern North America (CEC 1997; Figure 2.2). Th e ecoregion description is adapted from CEC (1997). Geographically, they extend from the Rocky Mountains and the Sierra Nevada north through the Siskiyous, the...
Inland surface water: Chapter 18
Jill Baron, C. T. Driscoll, J.L. Stoddard
2011, General Technical Report NRS-80
Freshwater aquatic ecosystems include rivers and streams, large and small lakes, reservoirs, and ephemeral ponds. Wetlands are defi ned and discussed in Chapter 17 of this report. It is estimated that there are 123,400 lakes with a surface area greater than 4 ha in the United States. Most lakes, however,...
Seabird use of discards from a nearshore shrimp fishery in the South Atlantic Bight, USA
Patrick G.R. Jodice, Lisa C. Wickliffe, Elena B. Sachs
2011, Marine Biology (158) 2289-2298
Shrimp trawling is common throughout the southeastern and Gulf of Mexico coasts of the USA and is the primary contributor to fisheries discards in these regions. Tens of thousands of nearshore seabirds nest near shrimp trawling grounds in the USA, but to date, there has been no assessment of the...
Characterization of winter foraging locations of Adélie penguins along the Western Antarctic Peninsula, 2001–2002
Eric S. Erdmann, Christine Ribic, Donna L. Patterson-Fraser, William R. Fraser
2011, Deep-Sea Research Part II: Topical Studies in Oceanography (58) 1710-1718
In accord with the hypotheses driving the Southern Ocean Global Ocean Ecosystems Dynamics (SO GLOBEC) program, we tested the hypothesis that the winter foraging ecology of a major top predator in waters off the Western Antarctic Peninsula (WAP), the Adélie penguin (Pygoscelis adeliae), is constrained by oceanographic features related to...
Chapter 6: Detectability adjusted count models of songbird abundance
Cameron L. Aldridge, Steve E. Hanser, Scott E. Nielsen, Matthias Leu, Brian S. Cade, D. Joanne Saher, Steven T. Knick
2011, Book chapter, Sagebrush ecosystem conservation and management: Ecoregional assessment tools and models for the Wyoming Basins
Sagebrush (Artemisia spp.) steppe ecosystems have experienced recent changes resulting not only in the loss of habitat but also fragmentation and degradation of remaining habitats. As a result, sagebrush-obligate and sagebrush associated songbird populations have experienced population declines over the past several decades. We examined landscape-scale responses in occupancy and...
Chapter 5: Greater sage-grouse: General use and roost site occurrence with pellet counts as a measure of relative abundance
Steve E. Hanser, Cameron L. Aldridge, Matthias Leu, Mary M. Rowland, Scott E. Nielsen, Steven T. Knick
2011, Book chapter, Sagebrush ecosystem conservation and management: Ecoregional assessment tools and models for the Wyoming Basins
Greater sage-grouse (Centrocercus urophasianus) have been declining both spatially and numerically throughout their range because of anthropogenic disturbance and loss and fragmentation of sagebrush (Artemisia spp.) habitats. Understanding how sage-grouse respond to these habitat alterations and disturbances, particularly the types of disturbances and extent at which they respond, is critical...
Simulating effects of microtopography on wetland specific yield and hydroperiod
David M. Summer
Xixi Wang, editor(s)
2011, Book chapter, Modeling hydrologic effects of microtopographic features
Specific yield and hydroperiod have proven to be useful parameters in hydrologic analysis of wetlands. Specific yield is a critical parameter to quantitatively relate hydrologic fluxes (e.g., rainfall, evapotranspiration, and runoff) and water level changes. Hydroperiod measures the temporal variability and frequency of land-surface inundation. Conventionally, hydrologic analyses used these...
Strategy to control the invasive alien tree Miconia calvescens in Pacific islands: Eradication, containment or something else?
Jean-Yves Meyer, Lloyd Loope, Anne-Claire Goarant
C.R. Veitch, M.N. Clout, D. R. Towns, editor(s)
2011, Conference Paper, Island invasives: Eradication and management
Miconia calvescens (Melastomataceae) is a notorious plant invader in the tropical islands of French Polynesia, Hawaii and New Caledonia. A small tree native to Central and South America, it was first introduced as an ornamental in private botanic gardens in Tahiti (1937), Honolulu (1961), and...
Status and distribution of the Kittlitz's Murrelet Brachyramphus brevirostris along the Alaska Peninsula and Kodiak and Aleutian Islands, Alaska
Erica N. Madison, John F. Piatt, Mayumi L. Arimitsu, Marc D. Romano, Thomas I. van Pelt, S. Kim Nelson, Jeffrey C. Williams, Anthony R. DeGange
2011, Marine Ornithology: Journal of Seabird Research and Conservation (39) 111-122
The Kittlitz's Murrelet Brachyramphus brevirostris is adapted for life in glacial-marine ecosystems, being concentrated in the belt of glaciated fjords in the northern Gulf of Alaska from Glacier Bay to Cook Inlet. Most of the remaining birds are scattered along coasts of the Alaska Peninsula and Aleutian Islands, where they...
A hierarchical spatial framework and database for the national river fish habitat condition assessment
L. Wang, D. Infante, P. Esselman, A. Cooper, D. Wu, W. Taylor, D. Beard, G. Whelan, A. Ostroff
2011, Fisheries (36) 436-449
Fisheries management programs, such as the National Fish Habitat Action Plan (NFHAP), urgently need a nationwide spatial framework and database for health assessment and policy development to protect and improve riverine systems. To meet this need, we developed a spatial framework and database using National Hydrography Dataset Plus (I-.100,000-scale); http://www.horizon-systems.com/nhdplus)....
Comparative phylogeography of a coevolved community: Concerted population expansions in Joshua trees and four yucca moths
Christopher Irwin Smith, Shantel Tank, William Godsoe, Jim Levenick, Eva Strand, Todd C. Esque, Olle Pellmyr
2011, PLoS ONE (6)
Comparative phylogeographic studies have had mixed success in identifying common phylogeographic patterns among co-distributed organisms. Whereas some have found broadly similar patterns across a diverse array of taxa, others have found that the histories of different species are more idiosyncratic than congruent. The variation in the results of comparative phylogeographic...
Sea otter abundance in Kenai Fjords national Park: Results from the 2010 aerial survey
Heather A. Coletti, James L. Bodkin, George G. Esslinger
2011, Report
A sea otter aerial survey was completed in Kenai Fjords National Park (KEFJ) during June of 2010. This was the third aerial survey completed since 2002 along the Kenai Peninsula, the second specifically conducted within KEFJ. Survey methodology followed the Bodkin and Udevitz (1999) method which accounts for imperfect detection....
The black carp in North America: an update
Leo G. Nico, Howard L. Jelks
2011, Conference Paper, Invasive asian carps in North America: American Fisheries Symposium 74
No abstract available....
Assessing the role of conspecific attraction in habitat restoration for Henslow's sparrows in Iowa
Jennifer A. Vogel, Rolf R. Koford, David L. Otis
2011, Prairie Naturalist (43) 23-28
The presence of conspecific individuals may provide important cues about habitat quality for territorial songbirds. We tested the ability of a conspecific song playback system to attract Henslow’s sparrows to previously unoccupied restored habitat. We successfully attracted Heslow’s sparrows to 3 of 7 treatment plots using conspecific song playbacks and...
Age estimation of a large bighead carp from Grand Lake, Oklahoma
James M. Long, Ashley Nealis
2011, Proceedings of the Oklahoma Academy of Science (91) 15-18
On April 23, 2011, a 1356-mm total length (TL), 39.8 kg bighead carp (Hypophthalmichthys nobilis) was brought to the Oklahoma Department of Wildlife Conservation. This specimen is the largest bighead carp recorded from Oklahoma, and it is near the maximum size reported from the United States. This specimen was estimated...
Chromium(VI) generation in vadose zone soils and alluvial sediments of the southwestern Sacramento Valley, California: a potential source of geogenic Cr(VI) to groundwater
Christopher T. Mills, Jean M. Morrison, Martin B. Goldhaber, Karl J. Ellefsen
2011, Applied Geochemistry (26) 1488-1501
Concentrations of geogenic Cr(VI) in groundwater that exceed the World Health Organization’s maximum contaminant level for drinking water (50 μg L−1) occur in several locations globally. The major mechanism for mobilization of this Cr(VI) at these sites is the weathering of Cr(III) from ultramafic rocks and its subsequent oxidation on...
Fire and the fire regime framework
Jon E. Keeley, William J. Bond, Ross A. Bradstock, Juli G. Pausas, Philip W. Rundel
2011, Book chapter, Fire in Mediterranean ecosystems: Ecology, evolution and management
A global view of potential vs. actual vegetation distributions points to fire as a major driver of biome distribution and determinant of community structure (Bond et al. 2005). In ecological terms, fire acts much like an herbivore, consuming biomass and competing with biotic consumers for resources, and in this sense...
Fire-related plant traits
Jon E. Keeley, William J. Bond, Ross A. Bradstock, Juli G. Pausas, Philip W. Rundel
2011, Book chapter, Fire in Mediterranean ecosystems: Ecology, evolution and management
As illustrated in Fig. 2.1 there are four environmental parameters that are necessary to determine the distribution of fire-prone ecosystems. However, they are insufficient to predict ecosystem responses to fire without a detailed understanding of the fire regime (see Fig. 2.7). Different fire regimes have very different potentials for recovery...
Identification of American shad spawning sites and habitat use in the Pee Dee River, North Carolina and South Carolina
Julianne E. Harris, Joseph E. Hightower
2011, North American Journal of Fisheries Management (31) 1019-1033
We examined spawning site selection and habitat use by American shad Alosa sapidissima in the Pee Dee River, North Carolina and South Carolina, to inform future management in this flow-regulated river. American shad eggs were collected in plankton tows, and the origin (spawning site) of each egg was estimated; relocations of radio-tagged...
