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Year Published: 2009

Does winter region affect spring arrival time and body mass of king eiders in northern Alaska?

Events during the non-breeding season may affect the body condition of migratory birds and influence performance during the following breeding season. Migratory birds nesting in the Arctic often rely on endogenous nutrients for reproductive efforts, and are thus potentially subject to such carry-over effects. We tested whether king eider (...

Oppel, Steffen; Powell, Abby N.
Does winter region affect spring arrival time and body mass of king eiders in northern Alaska?; 2009; Article; Journal; Polar Biology; Oppel, S.; Powell, A. N.

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Year Published: 2009

Effects of highway construction on stream water quality and macroinvertebrate condition in a mid-Atlantic highlands watershed, USA

Refining best management practices (BMPs) for future highway construction depends on a comprehensive understanding of environmental impacts from current construction methods. Based on a before-after-control impact (BACI) experimental design, long-term stream monitoring (1997–2006) was conducted at upstream (as control, n = 3) and...

Welsh, Stuart A.; Chen, Yushun; Viadero, Stuart C.; Wei, Xinchao; Hedrick, Lara B.; Anderson, James T.; Lin, Lian-Shin

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Year Published: 2009

Effects of introduced fish on macroinvertebrate communities in historically fishless headwater and kettle lakes

Widespread fish introductions have led to a worldwide decline in the number of fishless lakes and their associated communities. Studies assessing effects of fish stocking on native communities in historically fishless lakes have been limited to high-elevation headwater lakes stocked with non-native trout. Little is known about the effect of fish...

Schilling, Emily Gaenzle; Loftin, Cynthia S.; Huryn, Alexander D.
Effects of introduced fish on macroinvertebrate communities in historically fishless headwater and kettle lakes; 2009; Article; Journal; Biological Conservation; Schilling, E. G.; Loftin, C. S.; Huryn, A. D.

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Year Published: 2009

Fishing mortality in North Carolina's southern flounder fishery: direct estimates of instantaneous fishing mortality from a tag return experiment

Estimation of harvest rates is often a critical component of fishery stock assessment and management. These assessments are often based on catch-at-age data sets generated over many years, but estimates of instantaneous fishing mortality (F) can also be obtained from a shorter-term tag return study. We conducted a 2-year tag return experiment to...

Smith, William E.; Scharf, Frederick S.; Hightower, Joseph E.
Smith W. Fishing Mortality in North Carolina's Southern Flounder Fishery: Direct Estimates of Instantaneous Fishing Mortality from a Tag Return Experiment. Marine and coastal fisheries. 2009-01;1:283-299.

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Year Published: 2009

Fledging success is a poor indicator of the effects of bird blow flies on ovenbird survival

Infestations of bird blow flies (Protocalliphora spp. and Trypocalliphora braueri) have various negative effects on the condition of nestling birds. In the absence of other stressors such as inclement weather, however, infestation alone rarely reduces fledging success. Previous studies have documented effects of blow flies on nestling...

Peterson, Sean M.; Streby, Henry M.; Kapfer, Paul M.

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Year Published: 2009

Fledging success is a poor indicator of the effects of bird blow flies on ovenbird survival

Infestations of bird blow flies (Protocalliphora spp. and Trypocalliphora braueri) have various negative effects on the condition of nestling birds. In the absence of other stressors such as inclement weather, however, infestation alone rarely reduces fledging success. Previous studies have documented effects of blow flies on nestling...

Streby, Henry M.; Peterson, Sean M.; Kapfer, Paul M.
Fledging success is a poor indicator of the effects of bird blow flies on ovenbird survival; 2009; Article; Journal; Condor; Streby, H. M.; Peterson, S. M.; Kapfer, P. M.

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Year Published: 2009

Food supplies of stream-dwelling salmonids

Much is known about the importance of the physical characteristics of salmonid habitat in Alaska and the Pacific Northwest, with far less known about the food sources and trophic processes within these habitats, and the role they play in regulating salmonid productivity. Freshwater food webs supporting salmonids in Alaska rely heavily on nutrient...

Wipfli, Mark S.

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Year Published: 2009

Forecasting the combined effects of urbanization and climate change on stream ecosystems: from impacts to management options

  Streams collect runoff, heat, and sediment from their watersheds, making them highly vulnerable to anthropogenic disturbances such as urbanization and climate change. Forecasting the effects of these disturbances using process-based models is critical to identifying the form and magnitude of likely impacts. Here, we integrate a new biotic...

Nelson, Kären C.; Palmer, Margaret A.; Pizzuto, James E.; Moglen, Glenn E.; Angermeier, Paul L.; Hilderbrand, Robert H.; Dettinger, Mike; Hayhoe, Katharine
Forecasting the combined effects of urbanization and climate change on stream ecosystems: From impacts to management options; 2009; Article; Journal; Journal of Applied Ecology; Nelson, K. C.; Palmer, M. A.; Pizzuto, J. E.; Moglen, G. E.; Angermeier, P. L.; Hilderbrand, R. H.; Dettinger, M.; Hayhoe, K.

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Year Published: 2009

Genetic conservation and paddlefish propagation

The conservation of genetic diversity of our natural resources is overwhelmingly one of the central foci of 21st century management practices. Three recommendations related to the conservation of paddlefish Polyodon spathula genetic diversity are to (1) identify genetic diversity at both nuclear and mitochondrial DNA loci using a suggested list of...

Sloss, Brian L.; Klumb, Robert A.; Heist, Edward J.
American Fisheries Society Symposium 66:307–327, 2009

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Year Published: 2009

Genetic susceptibility to chronic wasting disease in free-ranging white-tailed deer: complement component C1q and Prnp polymorphisms

The genetic basis of susceptibility to chronic wasting disease (CWD) in free-ranging cervids is of great interest. Association studies of disease susceptibility in free-ranging populations, however, face considerable challenges including: the need for large sample sizes when disease is rare, animals of unknown pedigree create a risk of spurious...

Blanchong, Julie A.; Heisey, Dennis M.; Scribner, Kim T.; Libants, Scot V.; Johnson, Chad; Aiken, Judd M.; Langenberg, Julia A.; Samuel, Michael D.
Genetic susceptibility to chronic wasting disease in free-ranging white-tailed deer: Complement component C1q and Prnp polymorphisms; 2009; Article; Journal; Infection, Genetics and Evolution; Blanchong, J. A.; Heisey, D. M.; Scribner, K. T.; Libants, S. V.; Johnson, C.; Aiken, J. M.; Langenberg, J. A.; Samuel, M. D.

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Year Published: 2009

Grassland bird associations with introduced and native grass Conservation Reserve Program fields in the Southern High Plains

We examined relative abundances of grassland birds among Conservation Reserve Program (CRP) fields seeded with 2 monocultures of introduced grass species and 2 mixes of native grasses in the Southern High Plains of Texas. We assessed bird compositions among these 4 cover types and between the cover types pooled into categories of introduced and...

Thompson, Thomas R.; Boal, Clint W.; Lucia, Duane
Thompson T. Grassland Bird Associations with Introduced and Native Grass Conservation Reserve Program Fields in the Southern High Plains. Western North American naturalist. 2009-12;69:481-490.

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Year Published: 2009

Hemlock ecosystem monitoring of New River Gorge National River and Gauley River National Recreation Area vegetation and bird communities: 1998–2008

We initiated a long-term hemlock ecosystem monitoring study in 1998 on the New River Gorge National River (NERI) and Gauley River National Recreation Area (GARI), in Nicholas, Fayette, and Raleigh counties, West Virginia, to quantify the effects of hemlock woolly adelgid (HWA) on forest ecosystem dynamics. Hemlock vigor and degree of adelgid...

Wood, John M.; Wood, Petra Bohall; Perez, John