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Year Published: 2016

Anadromous salmonids in the Delta: New science 2006–2016

As juvenile salmon enter the Sacramento–SanJoaquin River Delta (“the Delta”) they disperse among its complex channel network where they are subject to channel-specific processes that affect their rate of migration, vulnerability to predation, feeding success, growth rates, and ultimately, survival. In the decades before 2006...

Perry, Russell W.; Buchanan, Rebecca A.; Brandes, Patricia L.; Burau, Jon R.; Israel, Joshua A

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Year Published: 2016

Tick-, mosquito-, and rodent-borne parasite sampling designs for the National Ecological Observatory Network

Parasites and pathogens are increasingly recognized as significant drivers of ecological and evolutionary change in natural ecosystems. Concurrently, transmission of infectious agents among human, livestock, and wildlife populations represents a growing threat to veterinary and human health. In light of these trends and the scarcity of long-term...

Springer, Yuri P.; Hoekman, David; Johnson, Pieter T. J.; Duffy, Paul A.; Hufft, Rebecca A.; Barnett, David T.; Allan, Brian F.; Amman, Brian R.; Barker, Christopher M.; Barrera, Roberto; Beard, Charles B.; Beati, Lorenza; Begon, Mike; Blackmore, Mark S.; Bradshaw, William E.; Brisson, Dustin; Calisher, Charles H.; Childs, James E.; Diuk-Wasser, Maria A.; Douglass, Richard J.; Eisen, Rebecca J.; Foley, Desmond H.; Foley, Janet E.; Gaff, Holly D.; Gardner, Scott L.; Ginsberg, Howard S.; Glass, Gregory E.; Hamer, Sarah A.; Hayden, Mary H.; Hjelle, Brian; Holzapfel, Christina M.; Juliano, Steven A.; Kramer, Laura D.; Kuenzi, Amy J.; LaDeau, Shannon L.; Livdahl, Todd P.; Mills, James N.; Moore, Chester G.; Morand, Serge; Nasci, Roger S.; Ogden, Nicholas H.; Ostfeld, Richard S.; Parmenter, Robert R.; Piesman, Joseph; Reisen, William K.; Savage, Harry M.; Sonenshine, Daniel E.; Swei, Andrea; Yabsley, Michael J.

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Year Published: 2016

A point mutation in the polymerase protein PB2 allows a reassortant H9N2 influenza isolate of wild-bird origin to replicate in human cells.

H9N2 influenza A viruses are on the list of potentially pandemic subtypes. Therefore, it is important to understand how genomic reassortment and genetic polymorphisms affect phenotypes of H9N2 viruses circulating in the wild bird reservoir. A comparative genetic analysis of North American H9N2 isolates of wild bird origin identified a naturally...

Hussein, Islam T.M.; Ma, Eric J.; Meixell, Brandt W.; Hill, Nichola J.; Lindberg, Mark S.; Albrecht , Randy A.; Bahl, Justin; Runstadler, Jonathan A.
Hussein, I. T. M., E. J. Ma, N. J. Hill, B. W. Meixell, M. Lindberg, R. A. Albrecht, J. Bahl, J. A. Runstadler. 2016. A point mutation in the polymerase protein PB2 allows a reassortant H9N2 influenza isolate of wild-bird origin to replicate in human cells. Infection, Genetics, and Evolution 41:279-288. doi:10.1016/j.meegid.2016.04.011

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Year Published: 2016

Acoustic surveys of Hawaiian Hoary Bats in Kahikinui Forest Reserve and Nakula Natural Area Reserve on the Island of Maui

The Kahikinui Forest Reserve and the adjoining Nakula Natural Area Reserve (KFR-NNAR) was established in 2011 as a conservation area on the leeward slope of Haleakalā Volcano on the island of Maui to protect unique natural features and endangered species including the Hawaiian hoary bat, Lasiurus cinereus semotus. We recorded bat vocalizations...

Todd, Christopher M.; Pinzari, Corinna A.; Bonaccorso, Frank
Todd, C. M., C. A. Pinzari, and F. J. Bonaccorso. 2016. Acoustic surveys of Hawaiian hoary bats in Kahikinui Forest Reserve and Nakula Natural Area Reserve on the island of Maui. Technical Report 78, Hawaii Cooperative Studies Unit, University of Hawaii at Hilo, Hilo, Hawaii.

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Year Published: 2016

Application of a hybrid model to reduce bias and improve precision in population estimates for elk (Cervus elaphus) inhabiting a cold desert ecosystem

Accurately estimating the size of wildlife populations is critical to wildlife management and conservation of species. Raw counts or “minimum counts” are still used as a basis for wildlife management decisions. Uncorrected raw counts are not only negatively biased due to failure to account for undetected animals, but also provide no estimate of...

Schoenecker, Kathryn A.; Lubow, Bruce C.
Schoenecker, K.A. and B.C. Lubow. 2015. Application of a hybrid model to reduce bias and improve precision in population estimates for elk (Cervus elaphus) inhabiting a cold desert ecosystem. Journal of King Saud University-Science

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Year Published: 2016

Comparison of methods to monitor the distribution and impacts of unauthorized travel routes in a border park

The distribution and abundance of human-caused disturbances vary greatly through space and time and are cause for concern among land stewards in natural areas of the southwestern border-lands between the USA and Mexico. Human migration and border protection along the international boundary create Unauthorized Trail and Road (UTR) networks across...

Esque, Todd C.; Inman, Rich; Nussear, Kenneth E.; Webb, Robert; Girard, M.M.; DeGayner, J.
Esque, TC, R Inman, KE Nussear, RH Webb, MM Girard, J DeGayner. 2016. Comparison of Methods to Monitor the Distribution and Impacts of Unauthorized Travel Routes in a Border Park. Natural Areas Journal 36(3): 248-258. doi: http://dx.doi.org/10.3375/043.036.0305

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Year Published: 2016

Contrasts between channels and backwaters in a large, floodplain river: Testing our understanding of nutrient cycling, phytoplankton abundance, and suspended solids dynamics

In floodplain rivers, variability in hydraulic connectivity interacts with biogeochemistry to determine the distribution of suspended and dissolved substances. Nutrient, chlorophyll a, and suspended solids data spanning longitudinal (5 study reaches across 1300 river km), lateral (main channel and backwaters), and temporal (1994–2011) gradients in...

Houser, Jeffrey N.
Houser, J.N. 2016. Contrasts between channels and backwaters in a large, floodplain river: testing our understanding of nutrient cycling, phytoplankton abundance, and suspended solids dynamics. Freshwater Science. Vol. 35(2):457-473. DOI: 10.1086/686171.

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Year Published: 2016

Decision-making for foot-and-mouth disease control: Objectives matter

Formal decision-analytic methods can be used to frame disease control problems, the first step of which is to define a clear and specific objective. We demonstrate the imperative of framing clearly-defined management objectives in finding optimal control actions for control of disease outbreaks. We illustrate an analysis that can be applied...

Probert, William J. M.; Shea, Katriona; Fonnesbeck, Christopher J.; Runge, Michael C.; Carpenter, Tim E.; Durr, Salome; Garner, M. Graeme; Harvey, Neil; Stevenson, Mark A.; Webb, Colleen T.; Werkman, Marleen; Tildesley, Michael J.; Ferrari, Matthew J.

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Year Published: 2016

Depredation of the California Ridgway’s rail: Causes and distribution

We studied the causes of mortality for the California Ridgway’s rail at multiple tidal marshes in the San Francisco Bay Estuary, California. We radio-marked 196 individual rails and examined the evidence from 152 recovered California Ridgway’s rail mortalities from our radio-marked sample and determined plausible cause of death from a wide array...

Casazza, Michael L.; Overton, Cory T.; Bui, Thuy-Vy D.; Takekawa, John Y.; Merritt, Angela M.; Hull, J.M.
Casazza, ML, CT Overton, TD Bui, JY Takekawa, AM Merritt, JM Hull. 2016. Depredation of the California Ridgway’s Rail: Causes and Distribution. Proceedings of the 27th Vertebrate Pest Conference, Newport Beach, CA. 7-10 March 2016. Pp. 226-235.

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Year Published: 2016

Dermocystidium sp. infection in Blue Ridge Sculpin captured in Maryland

Raised pale cysts were observed on Blue Ridge Sculpin Cottus caeruleomentum during stream fish community surveys in Catoctin Mountain Park, Maryland. When examined histologically, preserved sculpin exhibited multiple cysts containing spherical endospores with a refractile central body characteristic of Dermocystidiumspp. Cysts were not observed on...

Blazer, Vicki S.; Hitt, Nathaniel P.; Snyder, Craig D.; Snook, Erin; Adams, Cynthia R.
Blazer, V.S., N.P. Hitt, C.D. Snyder, E.L. Snook and C.R. Adams. 2016. Dermocystidium sp. infection in Blue Ridge Sculpin captured in Maryland. J. Aquat. Animal Health 28:143-149.

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Year Published: 2016

Effects of seasonal weather on breeding phenology and reproductive success of alpine ptarmigan in Colorado

Animal populations occurring at high elevations are often assumed to be in peril of extinctions or local extirpations due to elevational-dispersal limitations and thermoregulatory constraints as habitats change and warm. However, long-term monitoring of high-elevation populations is uncommon relative to those occurring at lower elevations, and...

Wann, Gregory T.; Aldridge, Cameron L.; Braun, Clait E.
Wann GT, Aldridge CL, Braun CE (2016) Effects of Seasonal Weather on Breeding Phenology and Reproductive Success of Alpine Ptarmigan in Colorado. PLoS ONE 11(7): e0158913. https://doi.org/10.1371/journal.pone.0158913

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Year Published: 2016

Energy development

Large areas of the desert southwest are currently developed or being evaluated for construction of utility-scale renewable energy projects. These projects include numerous solar and wind energy facilities some of which will be massive. Unfortunately, peer-reviewed scientific publications are not yet available to evaluate the potential effects of...

Jones, L.L.C.; Lovich, R. L.; Halama, K.J.; Lovich, Jeffrey E.
Lovich, J.E., 2016, Energy development, in Jones, L.L.C., Lovich, R.L., and Halama, K.J., eds., Habitat management guidelines for reptiles and amphibians of the southwestern United States: Birmingham, Ala., Partners in Amphibian and Reptile Conservation, Technical publication HMG-5, p. 31-34, http://parcplace.org/parcplace/publications.html.