The eastern cottonmouth (Agkistrodon piscivorus
) at the northern edge of its range.
Keywords: Snakes, snake den, hibernaculum, Illinois, cottonmouth, Agkistrodon piscivorus
Seasonal variation in the oviduct female Agkistrodon piscivorus
(Reptilia: Squamata): an ultrastructural investigation.
In order to more fully characterize winter body temperatures of reptiles and evaluate the possibilities of winter thermoregulation and hibernaculum selection, we studied over-wintering body temperatures of free-ranging Cottonmouth snakes, Agkistrodon piscivorus
Direct counts were possible at two nests; litter size at a third nest was determined by dissecting a cottonmouth (Agkistrodon piscivorus
) found consuming neonates (Platt and Rainwater 2000).
El ganador del ano 2011 del Premio Wilks fue Jason Strickland, Angelo State University, por su ponencia titulada "Filogeografia del mocasin, Agkistrodon piscivorus
, determinado por AFLP y los perfiles de proteinas del veneno."
taxispilota Georgia Camp (1980) North Carolina Collins (1969) Seminatrix pygaea Florida Parker (1941) Viperidae Agkistrodon piscivorus
Louisiana Rabalais (1969) leucostoma A.
I observed previously unrecorded species each year: six in 2002 (Rana areolata, Chelydra serpentina, Agkistrodon piscivorus
, Farancia abacura, Lampropeltis getula, Nerodia rhombifer), two in 2003 (Pseudemys concinna, Elaphe obsoleta), and five in 2004 (Siren intermedia, Kinosternon subrubrum, Sternotherus odoratus, Terrapene carolina, Eumeces fasciatus).
Characteristic vertebrates include the swamp rabbit (Sylvilagus aquaticus (Bachman), (very rare in Indiana), plus such reptilian species that are rare in Indiana as the eastern mud turtle (Kinosternon subrubrum subrubrum (Lacepede)), and the cottonmouth moccasin (Agkistrodon piscivorus
leucostoma (Troost)) (Abrell 1997).
The presence in the terrestrial habitat of juvenile Agkistrodon piscivorus
may be directly linked to the availability of a potential food supply of frogs, with are common in the habitat.
Robert Dowler, President-elect, presented the Wilks Award to Jason Strickland, Angelo State University, for his presentation "Phylogeography of the cottonmouth, Agkistrodon piscivorus
, determined by AFLP and venom protein profiles." The Wilks Award Committee for 2011 was Troy Baird, Michael Tobler, Michael Dixon, Paula Williamson, and Earl Zimmerman.
For example, eightfold more Agkistrodon piscivorus
were captured at the drift fence in the month of Mar.