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Year Published: 2019

Avian predation on juvenile Salmonids: Spatial and temporal analysis based on acoustic and passive integrated transponder tags

We evaluated the impact of predation on juvenile steelhead Oncorhynchus mykiss and yearling and subyearling Chinook Salmon O. tshawytscha by piscivorous waterbirds from 11 different breeding colonies in the Columbia River basin during 2012 and 2014. Fish were tagged with both acoustic tags and PIT tags and were tracked via a...

Evans, Allen F.; Payton, Quinn; Turecek, Aaron; Cramer, Bradley D.; Collis, Ken; Roby, Daniel D.; Loschl, Peter J.; Sullivan, Leah; Skalski; Weiland, Mark; Dotson, Curtis

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Year Published: 2018

Patch and landscape responses of bird abundance to fragmentation in agroecosystems of east-central Argentina

Forest fragmentation in agroecosystems is linked to declines of avian species worldwide. Agriculture has greatly reduced native forest cover in east-central Argentina. Assessing the influence of fragmentation on forest bird populations is vital to inform reliable conservation and management strategies for the Espinal region of Argentina. We...

Vilella, Francisco; Calamari, N.C.; Mercuri, P.A.

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Year Published: 2018

Confirmation of diving and swimming behavior in the Sora (Porzana carolina)

We first observed Sora (Porzana carolina) swimming and diving under water while capturing them with hand nets at night. Since that time, we have observed the behavior several times and documented it with photos and video. Rails are among the most elusive birds. Despite living in wetlands, water depth has often been discussed as a factor limiting...

Krementz, David G.

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Year Published: 2018

Will increased storm surge frequency impact food availability for Semipalmated Sandpipers (Calidris pusilla) at the beginning of fall migration?

Hatch-year Semipalmated Sandpipers (Calidris pusilla) use river deltas along the Beaufort Sea as their first stops during fall migration. However, these sites are subject to extreme changes in water levels that affect available foraging habitat. We examined relationships between timing of fall migration and storm surges, with respect to forage...

Churchwell, R.T.; Kendall, S.; Brown, S.C.; Powell, Abby

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Year Published: 2018

Estimates of abundance and longevity of Bridled Quail-Doves (Geotrygon mystacea) on Guana Island, British Virgin Islands

The Bridled Quail-Dove (Geotrygon mystacea) is a columbiform resident of the eastern Caribbean. It is a poorly studied species with a lack of quantitative data to assess population status, but perceived population declines have led to it being considered a species of conservation concern on many islands. I attempted to assess population size and...

Boal, Clint W.

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Year Published: 2018

Chapter 2. The North American carbon budget: Past, present, and future

This chapter nicely summarizes and synthesizes the latest scientific information on the North American carbon budget by incorporating terrestrial, anthropogenic, aquatic, and coastal margin CO2 and CH4dynamics. Starting with a historical context, the chapter summarizes current understanding of the magnitudes and trends of carbon stocks and...

McGuire, A. David; Hayes, Daniel J.; Vargas, Rodrigo; Alin, Simone R.; Conant, Richard T.; Hutrya, Lucy R.; Jacobson, Andrew R.; kurz, Werner A.; Poulter, Benjamine; Woodall, Christopher W.; Liu, Shuguang

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Year Published: 2018

Regenerating clearcuts combined with postharvest forestry treatments promote habitat for breeding and post-breeding spruce-fir avian assemblages in the Atlantic Northern Forest

The quantity of spruce-fir forest and some conifer-associated breeding bird abundances in the Atlantic Northern Forest have declined in recent decades emphasizing the need to better understand avian responses to forest management and to identify options that proactively conserve habitat for birds during the breeding and post-breeding period. We...

Rolek, Brian W.; Harrison, Daniel J.; Loftin, Cynthia S.; Wood, Petra B.

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Year Published: 2018

Submerged aquatic vegetation mapping in coastal Louisiana through development of a spatial likelihood occurrence (SLOO) model

Determining the spatial distribution of coastal foundation species is essential to accurately determine restoration goals, predict the ecological effects of climate change, and develop habitat management strategies. Mapping the distribution of submerged aquatic vegetation (SAV) species assemblages, which provide important habitat resource and...

DeMarco, Kristin; Couvillion, Brady; Brown, Stuart; La Peyre, Megan
DeMarco, K., Couvillion, B., Brown, S., and LaPeyre, M., 2018, Submerged aquatic vegetation mapping in coastal Louisiana through development of a spatial likelihood occurrence (SLOO) model: Aquatic Botany, v. 151, p. 87-97, https://doi.org/10.1016/j.aquabot.2018.08.007.

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Year Published: 2018

Artelle et al. (2018) miss the science underlying North American wildlife management

Artelle et al. (2018) conclude that “hallmarks of science” are largely missing from North American wildlife management based on a desk review of selected hunting management plans and related documents found through Internet searches and email requests to state and provincial wildlife agencies. We highlight three fundamental problems that...

Mawdsley, Jonathan R.; Organ, John F.; Decker, Daniel J.; Forstchen, Ann; Regan, Ronald J.; Riley, Shawn J.; Boyce, Mark S.; Mcdonald, John E.; Dwyer, Chris; Mahoney, Shane P.
J. R. Mawdsley, J. F. Organ, D. J. Decker, A. B. Forstchen, R. J. Regan, S. J. Riley, M. S. Boyce, J. E. McDonald Jr., C. Dwyer, S. P. Mahoney, Artelle et al. (2018) miss the science underlying North American wildlife management. Sci. Adv. 4, eaat8281 (2018).

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Year Published: 2018

Stock structure, dynamics, demographics, and movements of walleyes spawning in four tributaries to Green Bay

To test assumptions related to the current conceptual model for walleye Sander vitreusmanagement in Green Bay, we evaluated whether: 1) spawning aggregations in the Fox, Menominee, Oconto, and Peshtigo rivers represent genetically distinct stocks; 2) population dynamics and demographics vary among walleye spawning at these...

Dembkowski, Daniel J.; Isermann, Daniel A.; Hogler, Steven R.; Larson, Wesley; Turnquist, Keith N.

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Year Published: 2018

Evaluation of anal fin spines, otoliths, and scales for estimating age and back-calculated lengths of yellow perch in southern Green Bay

Southern Green Bay supports important fisheries for yellow perch Perca flavescens and valid estimates of age structure and growth are critical to effective management. Anal fin spines and scales are used by the Wisconsin Department of Natural Resources for age estimation, but these structures may...

Isermann, Daniel A.; Breeggemann, Jason J.; Paroli, Tammie J.

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Year Published: 2018

A new modeling approach to prioritize riparian restoration to reduce sediment loading in two Virginia river basins

Human impact, particularly land cover changes (e.g., agriculture, construction) increase erosion and sediment loading into streams. Benthic species are negatively affected by silt deposition that coats and embeds stream substrate. Given that riparian buffers are effective sediment filters, riparian restoration is increasingly implemented by...

Scott, Lisa N.; Villamagna, Amy M.; Angermeier, Paul L.