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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

Invertebrate availability and vegetation characteristics explain use of nonnesting cover types by mature-forest songbirds during the postfledging period

Some species of mature‐forest‐nesting songbirds use regenerating clearcuts and forested wetlands during the postfledging period (between nesting and migration). Relatively dense vegetation structure and abundant food resources in non‐mature‐forest cover types have been hypothesized to explain this phenomenon. We examined the relative importance of...

Streby, Henry M.; Peterson, Sean M.; Andersen, David E.

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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

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

Quantifying home range habitat requirements for bobcats (Lynx rufus) in Vermont, USA

We demonstrate how home range and habitat use analysis can inform landscape-scale conservation planning for the bobcat, Lynx rufus, in Vermont USA. From 2005 to 2008, we outfitted fourteen bobcats with GPS collars that collected spatially explicit locations from individuals every 4 h for 3–4 months. Kernel home range techniques were...

Donovan, Therese; Freeman, M.; Abouelezz, H.; Royar, Kim; Howard, A.; Mickey, R.

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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

Relationship of external fish condition to pathogen prevalence and out-migration survival in juvenile steelhead

Understanding how the external condition of juvenile salmonids is associated with internal measures of health and subsequent out‐migration survival can be valuable for population monitoring programs. This study investigated the use of a rapid, nonlethal, external examination to assess the condition of run‐of‐the‐river juvenile steelhead ...

Hostetter, Nathan J.; Evans, A.F.; Roby, Daniel D.; Collis, K.; Hawbecker, M.; Sandford, B.P.; Thompson, D.E.; Loge, F.J.