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Year Published: 2011

An evaluation of agreement between pectoral spines and otoliths for estimating ages of catfishes

Otoliths have been shown to provide more accurate ages than pectoral spine sections for several catfish populations; but sampling otoliths requires euthanizing the specimen, whereas spines can be sampled non-lethally. To evaluate whether, and under what conditions, spines provide the same or similar age estimates as otoliths, we examined data sets...

Olive, J.A.; Schramm, Harold; Gerard, Patrick D.; Irwin, E.

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Year Published: 2011

Perceptions of fish habitat conditions in Oklahoma tailwater fisheries: a survey of fisheries managers

While the downstream effects of dams on fish habitat have long been recognized, broad-scale assessments of tailwater fish habitat have rarely been conducted. In this paper, I report on the status of tailwater fisheries in Oklahoma as determined through a web-based survey of fisheries biologists with the Oklahoma Department of Wildlife Conservation...

Long, James M.

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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.

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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

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Year Published: 2011

An automated device for provoking and capturing wildlife calls

Some animals exhibit call‐and‐response behaviors that can be exploited to facilitate detection. Traditionally, acoustic surveys that use call‐and‐respond techniques have required an observer's presence to perform the broadcast, record the response, or both events. This can be labor‐intensive and may influence animal behavior and, thus, survey...

Ausband, D.E.; Skrivseth, J.; Mitchell, Michael S.

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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

Avian influenza shedding patterns in waterfowl: Implications for surveillance, environmental transmission, and disease spread

Despite the recognized importance of fecal/oral transmission of low pathogenic avian influenza (LPAI) via contaminated wetlands, little is known about the length, quantity, or route of AI virus shed by wild waterfowl. We used published laboratory challenge studies to evaluate the length and quantity of low pathogenic (LP) and highly pathogenic (HP...

Henaux, V.; Samuel, Michael D.

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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.