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Year Published: 2019

The spatial scale of biotic change in Chihuahuan Desert fish assemblages

1. We examined riverine desert fish assemblages in the Chihuahuan Desert, USA at multiple spatial scales of similarity to assess long-term changes to assemblage distinctiveness, identify individual species responsible for changes, and determine the importance of geographic context and species resolution in interpreting patterns of change. 2. We...

Taylor, C.M.; Miyazono, S.; Cheek, C.A.; Edwards, R.J.; Patino, Reynaldo

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Year Published: 2019

Climate change implications for irrigation and groundwater in the Republican River Basin, U.S.A.

This study investigates the influence of climate change on groundwater availability, and thereby, irrigation across political boundaries within the United States’ High Plains aquifer. A regression model is developed to predict changes in irrigation according to predicted changes in precipitation and temperature from a downscaled dataset of 32...

Ou, Gengxin; Munoz-Arriola, F.; Uden, D.R.; Martin, D. R.; Allen, Craig R.; Shank, N.

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Year Published: 2019

Survival and cause-specific mortality of desert bighorn sheep lambs

Juvenile recruitment in desert bighorn sheep (Ovis canadensis mexicana) is highly variable, yet the mechanisms driving neonate survival are not well understood for the species. Few studies have equipped desert bighorn sheep lambs with radiocollars. As a result, definitive data on cause-specific mortality and lamb survival estimates are lacking...

Cain, James W.; REBEKAH C. KARSCH; Goldstein, Elise J.; Rominger, Eric M.; William R. Gould

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Year Published: 2019

Estimating forest canopy cover dynamics in Valles Caldera National Preserve, New Mexico, using LiDAR and Landsat data

Increasing tree canopy cover has led to increasing wildfire activity in conifer dominated areas of the southwestern United States. Estimating historical changes in the spatial distribution of tree canopy cover can provide further insights into the dynamics of forest and fuel conditions in these landscapes and help prioritize...

Cain, James W.; Kamal Humagain1; Carlos Portillo-Quintero1; Robert D. Cox1

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Year Published: 2019

A values-based private landowner typology to improve grassland conservation initiatives

Many conservation initiatives are based on natural science alone, despite an extensive body of literature demonstrating that the incorporation of social science generates more successful and lasting outcomes. The Land Use Value (LUV) scale is an example of a social science tool that grassland conservation practitioners can use to improve their...

Sweikert, Lily A.; Gigliotti, Larry M.

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Year Published: 2019

Lesser prairie-chicken space use among landscapes in relation to anthropogenic structures

The Southern Great Plains has been altered by conversion of native grassland to row‐crop agriculture, which is considered the primary cause of declining lesser prairie‐chicken (Tympanuchus pallidicinctus) populations. However, recent analyses indicate that direct loss of grassland has slowed while lesser prairie‐chicken populations continue to...

Plumb, Reid T.; Lauternbach, Joseph M.; Robinson, Samantha G.; Haukos, David A.; Winder, Virginia L.; Hagen, Christian A.; Sullins, Daniel S.; Pittman, James C.; Dalhgren, David K.

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Year Published: 2019

Larger body size and earlier run timing increase alewife reproductive success in a whole lake experiment

Environmental conditions can influence biological characteristics like phenology and body size with important consequences for organismal fitness. Examining these fitness consequences under natural conditions through genetic pedigree reconstruction offers a lens into potential population responses to changing environments. Over three years (2013-...

Roy, Allison; Meghna N. Marjadi; Adrian Jordaan; Benjamin I. Gahagan; Michael P. Armstrong; Andrew R. Whiteley

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Year Published: 2019

How Minnesota wolf hunter and trapper attitudes and risk- and benefit-based beliefs predict wolf management preferences

In 2012, Minnesota’s first-ever regulated wolf hunting and trapping season occurred. Research has suggested that beliefs about risks and benefits associated with carnivores affect their acceptance. Using results from a 2013 mail survey of hunters and trappers who participated in the season, we employed mediation analysis to examine how risk- and...

Schroeder, Susan A.; Fulton, David C.; Cornicelli, Louis; Bruskotter, Jeremy T.

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Year Published: 2019

Subsidies from anadromous sea lamprey (Petromyzon marinus) carcasses function as a reciprocal nutrient exchange between marine and freshwaters

Nutrient and energy flows across ecosystem boundaries subsidize recipient communities and influence bottom‐up processes in food webs. Migratory fish such as anadromous sea lamprey provide a pulse of marine‐derived nutrients and energy to Atlantic coastal streams in spring when organisms would otherwise be subject to limiting resources. We...

Zydlewski, Joseph D.

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Year Published: 2019

Intensive sampling reveals underreported use of great-river tributaries by large-river fishes in Missouri

Large tributaries may help sustain large-river fish populations by mitigating fish-habitat losses within the highly modified great rivers of the Mississippi River basin. These tributaries are likely most beneficial for fish species specializing on non-degraded large-river habitat for some portion of their life histories. Few great-river...

Dunn, Corey G.; Brooke, Brandon L.; Hrabik, Robert A.; Paukert, Craig P.

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Year Published: 2019

Interactive effects of severe drought and grazing on the life history cycle of a bioindicator species on the edge of its range

Recurring drought and grazing are ecological drivers of semi-arid grasslands on the Southern High Plains, USA; however, ecological drivers are currently undergoing human-induced alterations, which likely have implications for wildlife. We used the lesser prairie-chicken (Tympanuchus pallidicinctus), an iconic grouse species that exhibits a boom-...

Haukos, David A.; Boal, Clint W.; S. R. Fritts1; B. A. Grisham1; R. D. Cox1; P. McDaniel4; C. A. Hagen; D. U. Greene6

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Year Published: 2019

A landscape-level assessment of whitebark pine regeneration in the Rocky Mountains, USA

Whitebark pine (Pinus albicaulis Engelm.) has recently experienced high mortality due to multiple stressors, and future population viability may rely on natural regeneration. We assessed whitebark pine seedling densities throughout the US Rocky Mountains and identified stand, site, and climatic variables related to seedling presence based on data...

Sara Goeking; Deborah Izlar; Edwards, Thomas C.