Montane Rattlesnakes and Prescribed Fire

Smith, Lawrence J.; Holycross, Andrew T.; Painter, Charles W.; Douglas, Michael E.

doi:10.2307/3672373

Cited by 26 publications

(10 citation statements)

References 19 publications

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“…The prescribed burns in 2005 and 2006 also might influence the growth of this population. Substantial direct mortality from fire is uncommon in snakes (Russell et al 1999;Smith et al 2001;Webb and Shine 2008), although exceptions exist (Durbian 2006;Lyet et al 2009). Prescribed fire could have the desired effect of increasing the suitability of the habitat for the San Francisco gartersnake or its amphibian prey, resulting in increased abundance over time.…”

Section: Discussionmentioning

confidence: 99%

Demography of the San Francisco Gartersnake in Coastal San Mateo County, California

Halstead

Wylie

Amarello

et al. 2011

Journal of Fish and Wildlife Management

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The San Francisco gartersnake Thamnophis sirtalis tetrataenia has been federally listed as endangered since 1967, but little demographic information exists for this species. We examined the demography of a San Francisco gartersnake population on approximately 213 ha of California coastal prairie in San Mateo County, California, from 2007 to 2010. The best-supported mark-recapture model indicated annual variation in daily capture probabilities and annual survival rates. Abundance increased throughout the study period, with a mean total population from 2008 to 2010 of 443 (95% CI = 313-646) individuals. Annual survival was slightly greater than that of most other gartersnakes, with an annual probability of survival of 0.78 (0.55-0.95) in 2008-2009 and 0.75 (0.49-0.93) in 2009-2010. Mean annual per capita recruitment rates were 0.73 (0.02the probability of an increase in abundance at this site was 0.873, with an estimated increase of 115 (282 to 326) individuals. The estimated population growth rate in 2008-2009 was 1.52 (0.73-3.29) and in 2009-2010 was 1.21 (0.70-2.17). Although this population is probably stable or increasing in the short term, long-term studies of the status of the San Francisco gartersnake at other sites are required to estimate population trends and to elucidate mechanisms that promote the recovery of this charismatic member of our native herpetofauna.

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Section: Discussionmentioning

confidence: 99%

Demography of the San Francisco Gartersnake in Coastal San Mateo County, California

Halstead

Wylie

Amarello

et al. 2011

Journal of Fish and Wildlife Management

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“…Prior to 1900, low intensity fires occurred on average every 6–7 years, as judged from fire scars on trees at Animas Mountain, whereas high intensity crown fires were less frequent [ 41 ]. We contrasted survival following low [ 42 ] and high intensity (2006) fires and employed three scenarios for context: (A) no fire, (B) low intensity fire, and (C) high intensity fire. Probability of each was determined using historical records [ 43 ], with survival estimated from mark-recapture data.…”

Section: Methodsmentioning

confidence: 99%

Nowhere to Go but Up: Impacts of Climate Change on Demographics of a Short-Range Endemic (Crotalus willardi obscurus) in the Sky-Islands of Southwestern North America

et al. 2015

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Biodiversity elements with narrow niches and restricted distributions (i.e., ‘short range endemics,’ SREs) are particularly vulnerable to climate change. The New Mexico Ridge-nosed Rattlesnake (Crotalus willardi obscurus, CWO), an SRE listed under the U.S. Endangered Species Act within three sky islands of southwestern North America, is constrained at low elevation by drought and at high elevation by wildfire. We combined long-term recapture and molecular data with demographic and niche modeling to gauge its climate-driven status, distribution, and projected longevity. The largest population (Animas) is numerically constricted (N = 151), with few breeding adults (Nb = 24) and an elevated inbreeding coefficient (ΔF = 0.77; 100 years). Mean home range (0.07km2) is significantly smaller compared to other North American rattlesnakes, and movements are within, not among sky islands. Demographic values, when gauged against those displayed by other endangered/Red-Listed reptiles [e.g., Loggerhead Sea Turtle ( Caretta caretta )], are either comparable or markedly lower. Survival rate differs significantly between genders (female

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“…fire recurrence and time since fire) are not the only drivers affecting reptile communities in fire-prone ecosystems, and other processes, like habitat structure, biogeographic affinity, and food availability, operating at different spatial scales, might be equally important (Driscoll and Henderson, 2008;Pastro et al, 2013;Ferreira et al, 2016b). Besides the direct impact of fire on animals (i. e. mortality; Smith et al, 2001;Couturier et al, 2011), shifts in vegetation along postfire successional stages are important in order to characterize reptile communities in fire-prone ecosystems (Driscoll et al, 2012;Santos and Cheylan, 2013;Smith et al, 2013;Santos et al, 2016). The complex relationship between fire and vegetation structure (Nimmo et al, 2014) makes it advisable to incorporate vegetation factors into fire-history models to better understand the response of reptiles to fire (Santos et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

The role of fire history, land-use, and vegetation structure on the response of Mediterranean lizards to fire

Pinto

Moreira

Freitas

et al. 2018

Forest Ecology and Management

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Montane Rattlesnakes and Prescribed Fire

Cited by 26 publications

References 19 publications

Demography of the San Francisco Gartersnake in Coastal San Mateo County, California

Demography of the San Francisco Gartersnake in Coastal San Mateo County, California

Nowhere to Go but Up: Impacts of Climate Change on Demographics of a Short-Range Endemic (Crotalus willardi obscurus) in the Sky-Islands of Southwestern North America

The role of fire history, land-use, and vegetation structure on the response of Mediterranean lizards to fire

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