Status of Pituophis ruthveni (Louisiana Pine Snake)

Rudolph, D. Craig; Burgdorf, Shirley J.; Schaefer, Richard R.; Conner, Richard N.; Maxey, Ricky W.

doi:10.1656/1528-7092(2006)5[463:soprlp]2.0.co;2

Cited by 22 publications

(15 citation statements)

References 5 publications

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“…More research testing the hypothesis that P. c. sayi is a thermoconformer in the upper Midwest is necessary. Himes et al (2006) have recently completed a study on the thermal ecology of the nationally rare Louisiana Pine Snake (Pituophis ruthveni), a species closely related to P. c. sayi (Rodriguez-Robles and De Jesus-Escobar, 2000;Rudolph et al, 2006). Using a similar methodology to our own, Himes et al (2006) found comparable patterns in the body temperatures of P. ruthveni, though it appears to generally exhibit higher body temperatures than P. c. sayi (Table 4).…”

Section: Discussionmentioning

confidence: 66%

Environmental, behavioral, and habitat variables influencing body temperature in radio-tagged bullsnakes, Pituophis catenifer sayi

Kapfer¹,

Pauers²,

Reineke³

et al. 2008

Journal of Thermal Biology

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Section: Discussionmentioning

confidence: 66%

Environmental, behavioral, and habitat variables influencing body temperature in radio-tagged bullsnakes, Pituophis catenifer sayi

Kapfer¹,

Pauers²,

Reineke³

et al. 2008

Journal of Thermal Biology

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“…§ Individual traps were monitored from varying periods of time (2-7 years). } Rudolph et al (2006) can be consulted for comparable methodology.…”

Section: Occupancy Modelingmentioning

confidence: 99%

Landscape‐level influences of terrestrial snake occupancy within the southeastern United States

Steen

McClure

Brock

et al. 2012

Ecological Applications

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Habitat loss and degradation are thought to be the primary drivers of species extirpations, but for many species we have little information regarding specific habitats that influence occupancy. Snakes are of conservation concern throughout North America, but effective management and conservation are hindered by a lack of basic natural history information and the small number of large‐scale studies designed to assess general population trends. To address this information gap, we compiled detection/nondetection data for 13 large terrestrial species from 449 traps located across the southeastern United States, and we characterized the land cover surrounding each trap at multiple spatial scales (250‐, 500‐, and 1000‐m buffers). We used occupancy modeling, while accounting for heterogeneity in detection probability, to identify habitat variables that were influential in determining the presence of a particular species. We evaluated 12 competing models for each species, representing various hypotheses pertaining to important habitat features for terrestrial snakes. Overall, considerable interspecific variation existed in important habitat variables and relevant spatial scales. For example, kingsnakes (Lampropeltis getula) were negatively associated with evergreen forests, whereas Louisiana pinesnake (Pituophis ruthveni) occupancy increased with increasing coverage of this forest type. Some species were positively associated with grassland and scrub/shrub (e.g., Slowinski's cornsnake, Elaphe slowinskii) whereas others, (e.g., copperhead, Agkistrodon contortrix, and eastern diamond‐backed rattlesnake, Crotalus adamanteus) were positively associated with forested habitats. Although the species that we studied may persist in varied landscapes other than those we identified as important, our data were collected in relatively undeveloped areas. Thus, our findings may be relevant when generating conservation plans or restoration goals. Maintaining or restoring landscapes that are most consistent with the ancestral habitat preferences of terrestrial snake assemblages will require a diverse habitat matrix over large spatial scales.

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“…Deviation from HWE at some loci for Louisiana pine snakes may result from sampling throughout the species' range; if genetic structure exists within this range, random mating assumptions may not be met (i.e., the Wahlund effect). However, deviations from HWE are not unexpected given that Louisiana pine snake population densities are extremely low (Rudolph et al 2006), and likely experiencing inbreeding and/or genetic drift. If low heterozygosity is observed within populations due to inbreeding, perhaps reintroduction of new individuals should be considered in future recovery plans.…”

mentioning

confidence: 99%

“…Perhaps of most concern is the Louisiana pine snake, P. ruthveni, a critically rare species that has a limited distribution in south-central United States. Louisiana pine snakes have low reproductive rates (Reichling 1990) and populations are characterized by extremely low density, especially those found in east Texas and Louisiana south of the Red River (Rudolph et al 2006). Populations face continued habitat loss and fragmentation as road density increases and fire suppression persists within their preferred habitat, long leaf pine of the Gulf Coastal Plain (Rudolph et al 2006;Rudolph and Burgdorf 1997).…”

mentioning

confidence: 99%

“…Louisiana pine snakes have low reproductive rates (Reichling 1990) and populations are characterized by extremely low density, especially those found in east Texas and Louisiana south of the Red River (Rudolph et al 2006). Populations face continued habitat loss and fragmentation as road density increases and fire suppression persists within their preferred habitat, long leaf pine of the Gulf Coastal Plain (Rudolph et al 2006;Rudolph and Burgdorf 1997). Bull snakes, P. catenifer, are found in a very small part of southern Canada, and little is known about their ecology or population structure.…”

mentioning

confidence: 99%

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Development and characterization of 16 microsatellite markers for the Louisiana pine snake, Pituophis ruthveni, and two congeners of conservation concern

Kwiatkowski

Somers

Poulin

et al. 2010

Conservation Genet Resour

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We isolated and characterized 16 microsatellite loci from the Louisiana pine snake, Pituophis ruthveni. Loci were screened in 24 individuals from locations throughout its distribution in Louisiana and Texas. The number of alleles per locus ranged from 4 to 12, observed heterozygosity ranged from 0.200 to 0.875, and the probability of identity ranged from 0.043 to 0.298. We examined cross-species amplification at these loci in P. catenifer (bullsnakes and gopher snakes) and P. melanoleucus (pine snakes). These new markers provide tools for examining the conservation genetics of this species complex. Louisiana pine snakes face numerous threats: population densities are extremely low and their natural habitat has been severely altered and fragmented. In southern Canada, P. catenifer is at the northern extreme of its range and limited by the availability of suitable over-wintering sites.

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Status of Pituophis ruthveni (Louisiana Pine Snake)

Cited by 22 publications

References 5 publications

Environmental, behavioral, and habitat variables influencing body temperature in radio-tagged bullsnakes, Pituophis catenifer sayi

Environmental, behavioral, and habitat variables influencing body temperature in radio-tagged bullsnakes, Pituophis catenifer sayi

Landscape‐level influences of terrestrial snake occupancy within the southeastern United States

Development and characterization of 16 microsatellite markers for the Louisiana pine snake, Pituophis ruthveni, and two congeners of conservation concern

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