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Projected changes in atmospheric heating due to changes in fire disturbance and the snow season in the western Arctic, 2003–2100
In high latitudes, changes in climate impact fire regimes and snow cover duration, altering the surface albedo and the heating of the regional atmosphere. In the western Arctic, under four scenarios of future climate change and future fire regimes (2003–2100), we examined changes in surface albedo and the related changes in regional...
Euskirchen, E.S.; McGuire, A. David; Rupp, T.S.; Chapin, F. S.; Walsh, J.E. Paddlefish management, propagation, and conservation in the 21st century
Paukert, Craig P.; Scholten, George D. Diverse elevational diversity gradients in Great Smoky Mountains National Park, U.S.A.: Chapter 10
Why does the number of species vary geographically? The earliest naturalists puzzled over this question, as do many biogeographers and macroecologists today. Over the last 200-plus years, the most striking geographic pattern in species richness – the decline in species richness with increasing latitude – has received the most attention. Thanks to...
Sanders, Nathan J.; Dunn, Robert R.; Fitzpatrick, Matthew C.; Carlton, Christopher E.; Pogue, Michael R.; Parker, Charles R.; Simons, Theodore R. Sublethal effects of catch-and-release fishing: measuring capture stress, fish impairment, and predation risk using a condition index
The sublethal effects of simulated capture of red snapper (Lutjanus campechanus) were analysed using physiological responses, condition indexing, and performance variables. Simulated catch-and-release fishing included combinations of depth of capture and thermocline exposure reflective of environmental conditions experienced in the Gulf of Mexico...
Campbell, Matthew D.; Patino, Reynaldo; Tolan, J.M.; Strauss, R.E.; Diamond, S. Distribution and habitat use of king rails in the Illinois and Upper Mississippi River valleys
The migratory population of the king rail (Rallus elegans) has declined dramatically during the past 40 years, emphasizing the need to identify habitat requirements of this species to help guide conservation efforts. To assess distribution and habitat use of king rails along the Illinois and Upper Mississippi valleys, USA, we conducted repeated...
Darrah, Abigail J.; Krementz, David G. Shifts in the trophic base of intermittent stream food webs
Understanding spatial and temporal variation in the trophic base of stream food webs is critical for predicting population and community stability, and ecosystem function. We used stable isotope ratios (13C/12C, and 15N/14N) to characterize the trophic base of two streams in the Ozark Mountains of northwest Arkansas, U.S.A. We predicted that...
Dekar, Matthew P.; Magoulick, Daniel D.; Huxel, G.R. Influence of Old World bluestem (Bothrichloa ischaemum) monocultures on breeding density of three grassland songbirds in Oklahoma
Despite persistent and widespread declines of grassland birds in North America, few studies have assessed differences between native grasslands and seeded monocultures as songbird habitat. In the Great Plains, many fields enrolled in the Conservation Reserve Program have been seeded to Old World bluestems (OWB), but there is evidence to suggest...
George, Andrew D.; O'Connell, Timothy J.; Hickman, Karen R.; Leslie, David M. Defining restoration targets for water depth and salinity in wind-dominated Spartina patens (Ait.) Muhl. coastal marshes
Coastal wetlands provide valued ecosystem functions but the sustainability of those functions often is threatened by artificial hydrologic conditions. It is widely recognized that increased flooding and salinity can stress emergent plants, but there are few measurements to guide restoration, management, and mitigation. Marsh flooding can be...
Nyman, J.A.; LaPeyre, Megan K.; Caldwell, Andral W.; Piazza, Sarai C.; Thom, C.; Winslow, C. Individual variation in baseline and stress-induced corticosterone and prolactin levels predicts parental effort by nesting mourning doves
Endocrine systems have an important mechanistic role in structuring life-history trade-offs. During breeding, individual variation in prolactin (PRL) and corticosterone (CORT) levels affects behavioral and physiological processes that drive trade-offs between reproduction and self-maintenance. We examined patterns in baseline (BL) and stress...
Miller, David A.; Vleck, Carol M.; Otis, David L. Bothriocephalus acheilognathi and other intestinal helminths of Cyprinella lutrensis in Deep Creek, Kansas
We investigated the intestinal parasites of a wild fish population in a Kansas stream to determine the prevalence and abundance of potentially harmful parasites. In total, 180 red shiners (Cyprinella lutrensis) were collected from 6 sites in October-November 2007. Fifteen Asian tapeworms (Bothriocephalus acheilognathi) were recovered from 13 fish...
Pullen, Rebecca R.; Bouska, Wesley W.; Campbell, Scott W.; Paukert, Craig P. Foraging behavior of pileated woodpeckers in partial cut and uncut bottomland hardwood forest
In bottomland hardwood forests, partial cutting techniques are increasingly advocated and used to create habitat for priority wildlife like Louisiana black bear (Ursus americanus luteolus), white-tailed deer (Odocoileus virginianus), and Neotropical migrants. Although partial cutting may be beneficial to some species, those that use dead wood may...
Newell, P.; King, Sammy L.; Kaller, Michael D. Determining the efficacy of microsatellite DNA-based mixed-stock analysis of Lake Michigan’s lake whitefish commercial fishery
Management of commercially exploited fish should be conducted at the stock level. If a mixed stock fishery exists, a comprehensive mixed stock analysis is required for stock-based management. The lake whitefish Coregonus clupeaformis comprises the primary commercial fishery across the Great Lakes. Recent research resolved that six...
VanDeHey, Justin A.; Sloss, Brian L.; Peeters, Paul J.; Sutton, Trent M.Social Media
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