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Year Published: 2011

Life-history notes on Cambarus hubbsi creaser (Hubbs crayfish) from the South Fork Spring River, Arkansas

Many crayfish species native to the southeastern United States are imperiled due to small range sizes and anthropogenic impacts such as habitat loss and introduction of non-native species. Furthermore, effective management of crayfish is limited by the scarcity of life-history and ecological data for many of these species. We report results of the...

Larson, E.R.; Magoulick, Daniel D.
Larson E. Life-History Notes on Creaser (Hubbs Crayfish) from the South Fork Spring River, Arkansas. Southeastern naturalist (Steuben, Me.). 2011-03;10:121-132.

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Year Published: 2011

Factors affecting detectability of river otters during sign surveys

Sign surveys are commonly used to study and monitor wildlife species but may be flawed when surveys are conducted only once and cover short distances, which can lead to a lack of accountability for false absences. Multiple observers surveyed for river otter (Lontra canadensis) scat and tracks along stream and reservoir shorelines at 110 randomly...

Jeffress, Mackenzie R.; Paukert, Craig P.; Sandercock, Brett K.; Gipson, Philip S.
Jeffress M. Factors affecting detectability of river otters during sign surveys. The Journal of wildlife management. 2011-01;75:144-150.

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Year Published: 2011

Adaptive resource management and the value of information

The value of information is a general and broadly applicable concept that has been used for several decades to aid in making decisions in the face of uncertainty. Yet there are relatively few examples of its use in ecology and natural resources management, and almost none that are framed in terms of the future impacts of management decisions. In...

Williams, B.K.; Eaton, M.J.; Breininger, D.R.
Adaptive resource management and the value of information; 2011; Article; Journal; Ecological Modelling; Williams, B. K.; Eaton, M. J.; Breininger, D. R.

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Year Published: 2011

Age estimation of a large bighead carp from Grand Lake, Oklahoma

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 to be nine years old based...

Long, James M.; Nealis, Ashley

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Year Published: 2011

Algal bioassessment metrics for wadeable streams and rivers of Maine, USA

Many state water-quality agencies use biological assessment methods based on lotic fish and macroinvertebrate communities, but relatively few states have incorporated algal multimetric indices into monitoring programs. Algae are good indicators for monitoring water quality because they are sensitive to many environmental stressors. We evaluated...

Danielson, Thomas J.; Loftin, Cynthia S.; Tsomides, Leonidas; DiFranco, Jeanne L.; Connors, Beth
Algal bioassessment metrics for wadeable streams and rivers of Maine, USA; 2011; Article; Journal; Journal of the North American Benthological Society; Danielson, T. J.; Loftin, C. S.; Tsomides, L.; Difranco, J. L.; Connors, B.

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Year Published: 2011

Assessing the role of conspecific attraction in habitat restoration for Henslow's sparrows in Iowa

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...

Vogel, Jennifer A.; Koford, Rolf R.; Otis, David L.

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Year Published: 2011

Behavioral response of manatees to variations in environmental sound levels

Florida manatees (Trichechus manatus latirostris) inhabit coastal regions because they feed on the aquatic vegetation that grows in shallow waters, which are the same areas where human activities are greatest. Noise produced from anthropogenic and natural sources has the potential to affect these animals by eliciting responses ranging from mild...

Miksis-Olds, Jennifer L.; Wagner, Tyler
Behavioral response of manatees to variations in environmental sound levels; 2011; Article; Journal; Marine Mammal Science; Miksis-Olds, J. L.; Wagner, T.

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Year Published: 2011

Cerulean Warbler occurrence and habitat use of Oklahoma

Dendroica cerulea (Cerulean Warbler) is a migrant songbird that has declined rangewide in recent decades. We surveyed 150 sites in 2006–2007 to determine if this species still occupied its former breeding range in Oklahoma. We located Cerulean Warblers at 5 sites and confirmed breeding on north slopes of two heavily forested ridges in...

Leslie, David M.; O'Connell, Timothy J.; Cavalieri, Vincent S.

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Year Published: 2011

Changing permafrost and its impacts

Callaghan, Terry V.; Johansson, Margareta; Bonsal, Barrie; Christiansen, Hanne H.; Instanes, Arne; Romanovsky, Vladimir E.; Smith, Sharon A.

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Year Published: 2011

Characterization of winter foraging locations of Adélie penguins along the Western Antarctic Peninsula, 2001–2002

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 the...

Erdmann, Eric S.; Ribic, Christine; Patterson-Fraser, Donna L.; Fraser, William R.

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Year Published: 2011

Diet and population metrics of the introduced blue catfish population in the Altamaha, River, GA

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 and Lake Oconee...

Bonvechio, Timothy F.; Jennings, Cecil A.

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Year Published: 2011

Diet composition and feeding patterns of adult shovelnose sturgeon (Scaphirhynchus platorynchus) in the lower Platte River, Nebraska, USA

Two-hundred and seven adult shovelnose sturgeon ranging from 450 to 718 mm in length were sampled from June to October 2001 and May to July 2002 to determine diet composition and feeding patterns in the lower Platte River. Shovelnose sturgeon fed primarily upon aquatic insect larvae and nymphs (>99% composition by number). Diptera of the...

Rapp, T.; Shuman, D.A.; Graeb, B.D.S.; Chipps, Steven R.; Peters, E.J.