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: 3724
Acceptance of the 2009 Henry Baldwin Ward Medal: The accidental parasitologist Acceptance of the 2009 Henry Baldwin Ward Medal: The accidental parasitologist
Members of the Society, President Conn, colleagues, friends, and particularly students, the Ward Medal recipient, from Clarke Read onward, traditionally recounts how their career was shaped. A decade ago, in a crumbling Kona hotel, the ASP's own tattooed lady, Janine Caira, opened her Ward Medal address with: “To all future Ward Medalists, many of whom I trust are sitting in the audience...
Authors
Kevin D. Lafferty
The 2007 southern California wildfires: Lessons in complexity The 2007 southern California wildfires: Lessons in complexity
The 2007 wildfire season in southern California burned over 1,000,000 ac (∼400,000 ha) and included several megafires. We use the 2007 fires as a case study to draw three major lessons about wildfires and wildfire complexity in southern California. First, the great majority of large fires in southern California occur in the autumn under the influence of Santa Ana windstorms. These fires...
Authors
Jon E. Keeley, H. Safford, C. J. Fotheringham, J. Franklin, M. Moritz
18. Arctostaphylos Adanson, Fam. Pl. 2: 165. 1763. 18. Arctostaphylos Adanson, Fam. Pl. 2: 165. 1763.
Arctostaphylos is richly diverse and taxonomically challenging. Unequivocal fossils appear as far back as the middle Miocene. Many pulses of diversification and decimation may have taken place in the genus since then; evidence suggests that there has been a rapid radiation in the last 1.5 million years. Some morphological features are not clearly differentiated among taxa and appear to...
Authors
V. Thomas Parker, Michael C. Vasey, Jon E. Keeley
The assembly, collapse and restoration of food webs The assembly, collapse and restoration of food webs
Darwin chose the metaphor of a 'tangled bank' to conclude the 'Origin of species'. Two centuries after Darwin's birth, we are still untangling the complex ecological networks he has pondered. In particular, studies of food webs provide important insights into how natural ecosystems function (Pascual & Dunne 2005). Although the nonlinear interactions between many species creates...
Authors
Andy Dobson, Stefano Allesina, Kevin Lafferty, Mercedes Pascual
Temporal and maternal effects on reproductive ecology of the giant gartersnake (Thamnophis gigas) Temporal and maternal effects on reproductive ecology of the giant gartersnake (Thamnophis gigas)
We used mixed-effects models to examine relationships of reproductive characteristics of the giant gartersnake (Thamnophis gigas) to improve population modeling and conservation planning for this species. Neonates from larger litters had lower mass, and mass of neonates also was affected by random variation among mothers. Length of mother did not affect relative mass of litters; however...
Authors
Brian J. Halstead, Glenn D. Wylie, Michael L. Casazza, Peter S. Coates
Calling for an ecological approach to studying climate change and infectious diseases Calling for an ecological approach to studying climate change and infectious diseases
My Concepts and Synthesis paper (Lafferty 2009),which inspired this Forum, echoed the premise that earlyreviews about climate change exaggerated claims thatinfectious diseases will increase in the future (Randolph2009). The paper sparked five well-reasoned commen-taries from ecologists with considerable expertise ininfectious diseases (Dobson 2009, Harvell et al. 2009,Ostfeld 2009...
Authors
Kevin D. Lafferty
Fire effects on the Point Reyes Mountain Beaver (Aplodontia rufa phaea) at Point Reyes National Seashore, 10 years after the Vision Fire Fire effects on the Point Reyes Mountain Beaver (Aplodontia rufa phaea) at Point Reyes National Seashore, 10 years after the Vision Fire
The 1995 Vision Fire burned 5000 ha and destroyed 40% of the habitat of the Point Reyes Mountain Beaver (Aplodontia rufa phaea). Surveys immediately post-fire and in 2000 showed that only 0.4 to 1.7% of Mountain Beavers within the burn area survived. In 2000, dense, ground-hugging Blue-blossom Ceanothus (Ceanothus thrysiflorus) appeared to make coastal scrub thickets much less suitable...
Authors
Gary M. Fellers, Michael Osbourn
Cascading effects of fishing on Galapagos rocky reef communities: reanalysis using corrected data Cascading effects of fishing on Galapagos rocky reef communities: reanalysis using corrected data
This article replaces Sonnenholzner et al. (2007; Mar Ecol Prog Ser 343:77–85), which was retracted on September 19, 2007, due to errors in entry of data on sea urchins. We sampled 10 highly fished and 10 (putatively) lightly fished shallow rocky reefs in the southeastern area of the Galapagos Marine Reserve, Ecuador. After the correction, these are the new results: there was a negative
Authors
Jorge I. Sonnenholzner, Lydia B. Ladah, Kevin D. Lafferty
Integrating terrestrial LiDAR and stereo photogrammetry to map the Tolay lakebed in northern San Francisco Bay Integrating terrestrial LiDAR and stereo photogrammetry to map the Tolay lakebed in northern San Francisco Bay
The Tolay Creek Watershed drains approximately 3,520 ha along the northern edge of San Francisco Bay. Surrounded by a mosaic of open space conservation easements and public wildlife areas, it is one of the only watersheds in this urbanized estuary that is protected from its headwaters to the bay. Tolay Lake is a seasonal, spring-fed lake found in the upper watershed that historically...
Authors
Isa Woo, Rune Storesund, John Y. Takekawa, Rachel J. Gardiner, Steve Ehret
Fuel age and fire spread: Natural conditions versus opportunities for fire suppression Fuel age and fire spread: Natural conditions versus opportunities for fire suppression
Wildfires are driven and restrained by an interplay of variables that can lead to many potential outcomes. As every wildland firefighter learns in basic training, the ability of a fire to spread is determined by three basic variables: fuel type and condition, weather, and topography. Fire suppression obviously plays a significant role in determining fire spread as well, so firefighter...
Authors
Richard W. Halsey, Jon E. Keeley, Kit Wilson
Modeling habitat of the desert tortoise (Gopherus agassizii) in the Mojave and parts of the Sonoran Deserts of California, Nevada, Utah, and Arizona Modeling habitat of the desert tortoise (Gopherus agassizii) in the Mojave and parts of the Sonoran Deserts of California, Nevada, Utah, and Arizona
Habitat modeling is an important tool used to simulate the potential distribution of a species for a variety of basic and applied questions. The desert tortoise (Gopherus agassizii) is a federally listed threatened species in the Mojave Desert and parts of the Sonoran Desert of California, Nevada, Utah, and Arizona. Land managers in this region require reliable information about the...
Authors
Kenneth E. Nussear, Todd C. Esque, Richard D. Inman, Leila Gass, Kathryn A. Thomas, Cynthia S.A. Wallace, Joan B. Blainey, David M. Miller, Robert H. Webb
Use of a nesting platform by Gull-billed Terns and Black Skimmers at the Salton Sea, California Use of a nesting platform by Gull-billed Terns and Black Skimmers at the Salton Sea, California
In 2006, we constructed an elevated nesting platform at the Salton Sea, California, and monitored its use by Gull-billed Terns and Black Skimmers over three subsequent breeding seasons. Black Skimmers were the first to colonize the platform with a total of five nests in 2006. In 2007 Gull-billed Terns colonized the platform with a total of 28 nests and the number of Black Skimmer nests...
Authors
Kathy C. Molina, Mark A. Ricca, A. Keith Miles, Christian Schoneman