Western Ecological Research Center

Publications

Below is a list of WERC's peer-reviewed publications. If you are searching for a specific publication and cannot find it in this list, please contact werc_web@usgs.gov

Filter Total Items: 2,827
Year Published: 2017

Behavioral response of giant gartersnakes (Thamnophis gigas) to the relative availability of aquatic habitat on the landscape

Most extant giant gartersnake (Thamnophis gigas) populations persist in an agro-ecosystem dominated by rice, which serves as a surrogate to the expansive marshes lost to flood control projects and development of the Great Central Valley of California. Knowledge of how giant gartersnakes use the rice agricultural landscape, including how they...

Reyes, Gabriel A.; Halstead, Brian J.; Rose, Jonathan P.; Ersan, Julia S. M.; Jordan, Anna C.; Essert, Allison M.; Fouts, Kristen J.; Fulton, Alexandria M.; Gustafson, K. Benjamin; Wack, Raymond F.; Wylie, Glenn D.; Casazza, Michael L.
Reyes, G.A., Halstead, B.J., Rose, J.P., Ersan, J.S.M., Jordan, A.C., Essert, A.M., Fouts, K.J., Fulton, A.M., Gustafson, K.B., Wack, R.F., Wylie, G.D., and Casazza, M.L., 2017, Behavioral response of giant gartersnakes (Thamnophis gigas) to the relative availability of aquatic habitat on the landscape: U.S. Geological Survey Open-File Report 2017-1141, 134 p., https://doi.org/10.3133/ofr20171141.

Year Published: 2017

Why were California's wine country fires so destructive?

As of late October more than a dozen wildfires north of San Francisco had killed more than 40 people, burned approximately 160,000 acres and destroyed more than 7,000 structures.This tragic loss of life and property is unprecedented in California. However, the fires are not anomalous events in terms of their size, intensity or the speed with which...

Keeley, Jon E.
Keeley, J. (2017, October 27) Why were California's wine country fires so destructive? The Conversation. Retrieved from https://theconversation.com/why-were-californias-wine-country-fires-so-destructive-86043

Year Published: 2017

Patterns and correlates of giant sequoia foliage dieback during California’s 2012–2016 hotter drought

Hotter droughts – droughts in which unusually high temperatures exacerbate the effects of low precipitation – are expected to increase in frequency and severity in coming decades, challenging scientists and managers to identify which parts of forested landscapes may be most vulnerable. In 2014, in the middle of California’s historically...

Stephenson, Nathan L.; Das, Adrian J.; Ampersee, Nicholas J.; Cahill, Kathleen G.; Caprio, Anthony C.; Sanders, John E.; Williams, A. Park
Stephenson, NL, AJ Das, NJ Ampersee, KG Cahill, AC Caprio, JE Sanders, AP Williams. 2017. Patterns and correlates of giant sequoia foliage dieback during California’s 2012–2016 hotter drought. Forest Ecology and Management. doi: 10.1016/j.foreco.2017.10.053

Year Published: 2017

Population trends, survival, and sampling methodologies for a population of Rana draytonii

Estimating population trends provides valuable information for resource managers, but monitoring programs face trade-offs between the quality and quantity of information gained and the number of sites surveyed. We compared the effectiveness of monitoring techniques for estimating population trends of Rana draytonii (California Red-legged Frog) at...

Fellers, Gary M.; Kleeman, Patrick M.; Miller, David A.W.; Halstead, Brian J.
Fellers, GM, PM Kleeman, DAW Miller, BJ Halstead. 2017. Population Trends, Survival, and Sampling Methodologies for a Population of Rana draytonii. Journal of Herpetology 51(4): 567-573. doi: 10.1670/17-054

Year Published: 2017

Monogenea of fishes from the lagoon flats of Palmyra Atoll in the Central Pacific

A survey of the monogeneans of fishes from the lagoon flats of Palmyra Atoll detected 16 species already reported from the Indo-West Pacific faunal region. A total of 653 individual fish from 44 species were collected from the sand flats bordering the lagoon of the atoll. Eighteen species of fish were infected with monogeneans. The monogenean...

Vidal-Martínez, Víctor Manuel; Soler-Jiménez, Lilia Catherinne; Aguirre-Macedo, Ma. Leopoldina; Mclaughlin, John; Jaramillo, Alejandra G.; Shaw, Jenny C.; James, Anna; Hechinger, Ryan F.; Kuris, Armand M.; Lafferty, Kevin D.
Vidal-Martinez, VM, LC Soler-Jimenez, ML Aguirre-Macedo, J Mclaughlin, A jaramillo, J Shaw, A James, R Hechinger, A Kuris, K Lafferty. 2017. Monogenea of fishes from the lagoon flats of Palmyra Atoll in the Central Pacific. ZooKeys 713: 1-23. doi: 10.3897/zookeys.713.14732

Year Published: 2017

Marine infectious disease ecology

To put marine disease impacts in context requires a broad perspective on the roles infectious agents have in the ocean. Parasites infect most marine vertebrate and invertebrate species, and parasites and predators can have comparable biomass density, suggesting they play comparable parts as consumers in marine food webs. Although some parasites...

Lafferty, Kevin D.
KD Lafferty. 2017. Marine Infectious Disease Ecology. Annual Review of Ecology, Evolution, and Systematics. doi: 10.1146/annurev-ecolsys-121415-032147

Year Published: 2017

Alternative pathways to landscape transformation: Invasive grasses, burn severity and fire frequency in arid ecosystems

Arid ecosystems are often vulnerable to transformation to invasive-dominated states following fire, but data on persistence of these states are sparse. The grass/fire cycle is a feedback process between invasive annual grasses and fire frequency that often leads to the formation of alternative vegetation states dominated by the invasive grasses....

Klinger, Robert C.; Brooks, Matthew L.
Klinger, R and M Brooks. 2017. Alternative pathways to landscape transformation: invasive grasses, burn severity and fire frequency in arid ecosystems. Journal of Ecology 105(6): 1521-1533. doi: 10.1111/1365-2745.12863

Year Published: 2017

Candoia Bibroni (Pacific Boa). Diet

No abstract available.

Clause, Adam G.; Fraser, Mark J.; Pene, Sarah; Thomas-Moko, Nunia; Fisher, Robert N.
Clause, AG, MJ Fraser, S Pene, N Thomas-Moko, RN Fisher. 2017. Candoia Bibroni (Pacific Boa). DIET. Herpetological Review: Natural History Notes 48(3): 667-668.

Year Published: 2017

Crotalus oreganus lutosus (Great Basin Rattlesnake). Defensive behavior/head hiding and tongue display

A variety of snake species employ head hiding as defensive behavior (Greene 1973. J. Herpetol. 7:143–161), but such behavior seems to be rarely observed in rattlesnakes. A recent report (Medica 2009. Herpetol. Rev. 40:95–97) presented observations on Crotalus scutulatus scutulatus and cited cases of similar behavior involving C. atrox, C. ruber,...

Johnson, Alexander K.; Medica, Phil A.
Johnson, AK and PA Medica. 2017. CROTALUS OREGANUS LUTOSUS (Great Basin Rattlesnake). DEFENSIVE BEHAVIOR / HEAD HIDING AND TONGUE DISPLAY. Natural History Notes: Herpetological Review 48(1): 209-210.

Year Published: 2017

At the end of the line: independent overwater colonizations of the Solomon Islands by a hyperdiverse trans-Wallacean lizard lineage (Cyrtodactylus: Gekkota: Squamata)

The islands of East Melanesia have generated key insights into speciation processes and community assembly. However, when and how these islands began to form, emerge and accumulate endemic taxa remains poorly understood. Here, we show that two divergent lineages within the world’s most diverse genus of geckos (Cyrtodactylus) occur in the Solomon...

Oliver, Paul M.; Travers, Scott L; Richmond, Jonathan Q.; Pikacha, Patrick; Fisher, Robert N.
Oliver, PM, SL Travers, JQ Richmond, P Pikacha, RN Fisher. 2017. At the end of the line: independent overwater colonizations of the Solomon Islands by a hyperdiverse trans-Wallacean lizard lineage (Cyrtodactylus: Gekkota: Squamata). Zoological Journal of the Linnean Society. doi: 10.1093/zoolinnean/zlx047

Year Published: 2017

Plastic ingestion by Black-footed Albatross Phoebastria nigripes from Kure Atoll, Hawai'i: Linking chick diet remains and parental at-sea foraging distributions

We quantified the incidence (percentage of samples with plastic) and loads (mass, volume) of four plastic types (fragments, line, sheet, foam) ingested by Black-footed Albatross Phoebastria nigripes chicks raised on Kure Atoll, the westernmost Hawaiian colony. All 25 samples contained plastic, mostly in the form of foam and line. On average (± SD...

Hyrenbach, K. David; Hester, Michelle M.; Adams, Josh; Titmus, Andrew J.; Michael, Pam; Wahl, Travis; Chang, Chih-Wei; Marie, Amarisa; Vanderlip, Cynthia
HYRENBACH, K.D., HESTER, M.M., ADAMS, J., TITMUS, A.J., MICHAEL, P., WAHL, T., CHANG, C.-W., MARIE, A. & VANDERLIP, C. 2017. Plastic ingestion by Black-footed Albatross Phoebastria nigripes from Kure Atoll, Hawai'i: Linking chick diet remains and parental at-sea foraging distributions. Marine Ornithology 45(2): 225-236.

Year Published: 2017

An improved camera trap for amphibians, reptiles, small mammals, and large invertebrates

Camera traps are valuable sampling tools commonly used to inventory and monitor wildlife communities but are challenged to reliably sample small animals. We introduce a novel active camera trap system enabling the reliable and efficient use of wildlife cameras for sampling small animals, particularly reptiles, amphibians, small mammals and large...

Hobbs, Michael T.; Brehme, Cheryl S.
Hobbs, MT and CS Brehme. 2017. An improved camera trap for amphibians, reptiles, small mammals, and large invertebrates. PLoS ONE 12(10): e018502. doi: 10.1371/journal.pone.0185026