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Year Published: 2011

Identification of American shad spawning sites and habitat use in the Pee Dee River, North Carolina and South Carolina

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...

Harris, Julianne E.; Hightower, Joseph E.
Harris J. Identification of American Shad Spawning Sites and Habitat Use in the Pee Dee River, North Carolina and South Carolina. North American journal of fisheries management. 2011-12;31:1019-1033.

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Year Published: 2011

Isolation of microsatellite loci from the lesser long-nosed bat (Leptonycteris yerbuenae)

Leptonycteris yerbabuenae is a nectarivore (subfamily: Glossophaginae, family: Phyllostomidae), is found from southern Arizona/southwestern New Mexico to southern Mexico including the Baja California peninsula (Ceballos et al.1997; Cockrum 1991).Leptonycteris yerbabuenae is listed as endangered in the United States (Shull 1988) and...

Ramirez, Judith; Munguia-Vega, A.; Culver, Melanie

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Year Published: 2011

King eider foraging effort during the pre-breeding period in Alaska

For reproduction, many arctic-nesting migratory birds rely on nutrients obtained on the breeding grounds, so they devote sufficient time to foraging immediately prior to nesting. However, little is known about the increase in foraging effort necessary to meet the energetic requirements of reproduction. In early June 2006 and 2008, we quantified...

Oppel, Steffen; Powell, Abby N.; Butler, Malcolm G.
Kingeider foraging effort during the pre-breeding period in Alaska; 2011; Article; Journal; Condor; Oppel, S.; Powell, A. N.; Butler, M. G.

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Year Published: 2011

Landscape drivers of regional variation in the relationship between total phosphorus and chlorophyll in lakes

1. For north temperate lakes, the well-studied empirical relationship between phosphorus (as measured by total phosphorus, TP), the most commonly limiting nutrient and algal biomass (as measured by chlorophyll a, CHL) has been found to vary across a wide range of landscape settings. Variation in the parameters of these TP–CHL regressions has...

Wagner, Tyler; Soranno, Patricia A.; Webster, Katherine E.; Cheruvelil, Kendra Spence
Landscape drivers of regional variation in the relationship between total phosphorus and chlorophyll in lakes; 2011; Article; Journal; Freshwater Biology; Wagner, T.; Soranno, P. A.; Webster, K. E.; Cheruvelil, K. S.

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Year Published: 2011

Long term retention, survival, growth, and physiological indicators of salmonids marked with passive integrated transponder tags

To track individuals in situ, over 12 million salmon and trout have been marked with passive integrated transponder (PIT) tags in the Columbia River Basin, USA. However, few studies have examined long term tag retention as well as tag effects on juvenile salmon and trout. We marked juvenile coho salmon Oncorhynchus kisutch (N = 207), steelhead (...

Ostrand, Kenneth G.; Zydlewski, Gayle B.; Gale, William L.; Zydlewski, Joseph D.

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Year Published: 2011

Nest success of northern bobwhite on managed and unmanaged landscapes in southeast Iowa

Range-wide declines in northern bobwhite populations (Colinus virginianus) have been attributed to concomitant loss of breeding habitat. Bobwhite management efforts to restore this habitat resource can be informed by empirical studies of associations between breeding success and multi-scale habitat attributes. We compared bobwhite nest success in...

Potter, Lisa M.; Otis, David L.; Bogenschutz, Todd R.
Nest success of northern bobwhite on managed and unmanaged landscapes in southeast Iowa; 2011; Article; Journal; Journal of Wildlife Management; Potter, L. M.; Otis, D. L.; Bogenschutz, T. R.

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Year Published: 2011

Northern goshawk monitoring in the western Great Lakes bioregion

Uncertainties about factors affecting Northern Goshawk (Accipiter gentilis) ecology and the status of populations have added to the challenge of managing this species. To address data needs for determining the status of goshawk populations, Hargis and Woodbridge (2006) developed a bioregional monitoring protocol based on estimating occupancy. The...

Bruggeman, Jason E.; Andersen, David E.; Woodford, James E.
Northern goshawk monitoring in the western great lakes bioregion; 2011; Article; Journal; Journal of Raptor Research; Bruggeman, J. E.; Andersen, D. E.; Woodford, J. E.

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Year Published: 2011

Post-breeding bird responses to canopy tree retention, stand size, and edge in regenerating Appalachian hardwood stands

Avian use of even-aged timber harvests is likely affected by stand attributes such as size, amount of edge, and retained basal area, all characteristics that can easily be manipulated in timber harvesting plans. However, few studies have examined their effects during the post-breeding period. We studied the impacts of clearcut, low-leave two-age,...

McDermott, Molly E.; Wood, Petra B.
Post-breeding bird responses to canopy tree retention, stand size, and edge in regenerating Appalachian hardwood stands; 2011; Article; Journal; Forest Ecology and Management; McDermott, M. E.; Wood, P. B.

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Year Published: 2011

Predicting carnivore occurrence with noninvasive surveys and occupancy modeling

Terrestrial carnivores typically have large home ranges and exist at low population densities, thus presenting challenges to wildlife researchers. We employed multiple, noninvasive survey methods—scat detection dogs, remote cameras, and hair snares—to collect detection–nondetection data for elusive American black bears (Ursus...

Long, Robert A.; Donovan, Therese M.; MacKay, Paula; Zielinski, William J.; Buzas, Jeffrey S.
Predicting carnivore occurrence with noninvasive surveys and occupancy modeling; 2011; Article; Journal; Landscape Ecology; Long, R. A.; Donovan, T. M.; MacKay, P.; Zielinski, W. J.; Buzas, J. S.

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Year Published: 2011

Radiotelemetry to estimate stream life of adult chum salmon in the McNeil River, Alaska

Estimating salmon escapement is one of the fundamental steps in managing salmon populations. The area-under-the-curve (AUC) method is commonly used to convert periodic aerial survey counts into annual salmon escapement indices. The AUC requires obtaining accurate estimates of stream life (SL) for target species. Traditional methods for estimating...

Peirce, Joshua M.; Otis, Edward O.; Wipfli, Mark S.; Follmann, Erich H.

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Year Published: 2011

Reduction of garbage in the diet of nonbreeding glaucous gulls corresponding to a change in waste management

Glaucous gulls (Larus hyperboreus) are major predators in the Arctic and may benefit from human development. We studied use of garbage by glaucous gulls in Barrow, Alaska, in 2007, when municipal waste was disposed of in a landfill, and in 2008, when it was incinerated. In both years, diet samples from breeding adult gulls contained less garbage...

Weiser, Emily L.; Powell, Abby N.
Reduction of garbage in the diet of nonbreeding glaucous gulls corresponding to a change in waste management; 2011; Article; Journal; Arctic; Weiser, E. L.; Powell, A. N.

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Year Published: 2011

Residence time and movements of postbreeding shorebirds on the northern coast of Alaska

Relatively little is known about shorebird movements across the coast of northern Alaska, yet postbreeding shorebirds use this coastline extensively prior to fall migration. We deployed 346 radio transmitters on 153 breeding and 193 postbreeding shorebirds of five species from 2005 to 2007.We examined two hypotheses regarding postbreeding...

Taylor, Audrey R.; Lanctot, Richard B.; Powell, Abby N.; Kendall, Steven J.; Nigro, Debora A.
Residence time and movements of postbreeding shorebirds on the northern coast of Alaska; 2011; Conference Paper; Condor; Taylor, A. R.; Lanctot, R. B.; Powell, A. N.; Kendall, S. J.; Nigro, D. A.