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At least 199 records · Page 11Linked to original sources

Trachemys scripta elegans (Red-eared Slider). Reproduction

The natural range of Trachemys scripta elegans is centered in the south-central United States, from Illinois to the Gulf of Mexico. Because of its prominence in the international pet trade, the species now can be found over much of the United States, and its introduction has been documented throughout the world (Ernst et al. 1994. Turtles of the United States and Canada. Smithsonian Institution Press, Washington. 578 pp.). There has been speculation as to whether and where introduced Red-eared Sliders can reproduce in the wild in California (Bury and Luckenbach 1976. Biol. Conserv. 10:1-14). Successful nesting or presumed breeding (i.e., gravid females) in northern California were reported by Bury and Luckenbach ( op. cit .) at Clear Lake, by Spinks et al. (2003. Biol. Cons. 113:257-267) at the University of California, Davis, and by Fidenci (2006. Herpetol. Rev. 37:80) in the Mount Tamalpais Watershed, Mann Co. Here, we report additional evidence of reproduction in T. s. elegans in the wild in northern California.

California

Osteopilus septentrionalis (Cuban treefrog)

USA: LOUISIANA: east baton Rouge paRish: private property in a garden center on a bromeliad in the 1700 block of Millerville Road in Baton Rouge (ca. 30.443°N, 91.023°W; WGS 84). 29 November 2016. Joseph Roy. Verified by Hardin Waddle. Florida Museum of Natural History (UF 181952; photo voucher). New parish record. This sub-adult was discovered after the bromeliad was bought and placed outdoors under heat lights. It was not collected. A second individual, also not collected, was found at a nursery on a bromeliad in the greenhouse in the 15000 block of Perkins Road in Baton Rouge (ca. 30.357°N, 91.049°W; WGS 84) on 24 January 2017 by Joseph Roy (UF 181953; photo voucher).

Herpetological Review

Thamnophis sirtalis fitchi (Valley Gartersnake). Coloration.

During surveys for Thamnophis gigas (Giant Gartersnake), I observed an adult T. sirtalis fitchi with unusual coloration— a yellow-cream background color with some typical red coloration laterally, but with very minimal amounts of the dark slate-black (along the sides of the yellow dorsal stripe and on top of the head) that normally predominates in this subspecies (Fig. 1; LACM [Natural History Museum of Los Angeles County] PC 2339, photo voucher). The snake was captured in a modified minnow trap on 21 May 2017, in Sutter County, Sacramento Valley, California, USA. Prior to this capture, our survey crew made two sightings of similarly marked T. s. fitchi at the same field location, and another snake with similar markings was captured at a nearby field location on 13 May 2016 (LACM PC 2341, photo voucher).

Herpetological Review

Hemidactylus parvimaculatus (Sri Lankan spotted house gecko)

USA: LOUISIANA: PLAQUEMINES PARISH: 0.15 km S of the intersection of LA-23 and Jump road, Venice (29.266630°N, 89.35570°W; WGS 84). 2 May 2019. V. C. Montross and W. McGighan. Verified by Aaron M. Bauer. Florida Museum of Natural History (UF 189238; photo voucher). New parish record. On 2 May 2019, three Hemidactylus parvimaculatus were observed after lifting an abandoned door left on the side of Jump Basin Road. An adult specimen was photographed. This record extends the known distribution of this species in Louisiana south of all previously recorded parishes and is 105 km SW of the species’ first recorded location in the state at Audubon Zoo, Orleans Parish (Heckard et al. 2013. IRCF Reptil. Amphib. 20:192–196). Four additional parishes in southeastern Louisiana have since been added to its known distribution including Jefferson (Borgardt 2015. Herpetol. Rev. 46:217), St. Tammany (Glorioso 2016. Herpetol. Rev. 47:81), St. John (Borgardt 2016. Herpetol. Rev. 47:258), and Tangipahoa (Erdman 2017. Herpetol. Rev. 48:125), as well as Chambers and Orange counties in east Texas (Davis and LaDuc 2019. Herpetol. Rev. 50:102).

Louisiana

Low-level detection of SFD-causing Ophidiomyces on Burmese Pythons in southwest Florida, with confirmation of the pathogen on co-occurring native snakes

Snake fungal disease (SFD), or ophidiomycosis, is caused by the fungus Ophidiomyces ophiodiicola (Allender et al. 2015; Lorch et al. 2015). SFD is widespread across wild populations in the eastern United States (Lorch et al. 2016) and is known to infect more than 30 species of snake in North America and Europe (Lorch et al. 2016; Franklinos et al. 2017). No known phylogenetic or ecological patterns have been observed in susceptibility among snake taxa, and it is presumed that all species are likely susceptible (Burbrink et al. 2017).

Florida

Locality note for rubber boa

CHARINA BOTTAE BOTTAE (N. Rubber Boa), USA: CALIFORNIA: Monterey Co.: Landels-Hill Big Creek Reserve, east side of Hwy. 1, 80 km (50 miles) south of Carmel, Calif., (36.0719055 N 121.5991555 W) 19 June, 2009; (36.0703611 N 121.5982222 W) 06 July 2009; (36.9516666 N 121.5991944 W) 27 July 2009. In chronological order, photo vouchers MVZObs:Herp:26, MVZObs:Herp:27, MVZObs:Herp:28. Verified by Mitchell Mulks, formerly of 84 Redondo Ave. Suisun City, Calif., Michelle Koo, Staff Curator, Biodiversity Informatics & GIS and Researcher, MVZ, U.C., Berkeley, Calif. New southern extension of the species in the Santa Lucia Range of Monterey Co. approximately 48 km. (30 miles) south of previous range extension south of Carmel in Bixby Canyon (Burger, L.W., Herpetologica, Vol. 8. Part 1. March 22, 1952), and approximately 4 km. (2.5 miles) south of MVZ #229876 found 20 miles north of Nacimiento Road, at approximate coordinates of 36.10033 N 121.62026 W.

California

Body sizes in upper elevation populations of whiptail lizards: Aspidoscelis inornatus (Squamata: Teiidae) in central and northern Arizona, USA

The binational distribution of the gonochoristic (i.e., diploid bisexual) Aspidoscelis inornatus (Little Striped Whiptail) complex extends from parts of Arizona, New Mexico, and Texas in the USA (Taylor 1965; Stevens 1983; Wright and Lowe 1993; Sullivan 2009; Walker et al. 2012) southward into parts of the Mexican states Chihuahua, Coahuila, Durango, Nuevo León, Zacatecas, San Luis Potosí, and Tamaulipas (Axtell 1961; Wright and Lowe 1993; Farr et al. 2009; Walker et al. 2009). Within this vast distributional area, mean and maximum snout vent length (SVL) of A. inornatus varies geographically based in part on the types of habitats and climatic regimens occupied (Wright and Lowe 1993; Walker et al. 2009; Rosenblum and Harmon 2010).

Arizona

Minimizing the spread of aquatic herpetofaunal pathogens by decontaminating construction equipment

Some problems have relatively simple solutions compared to the cost of neglect. Preventing the spread of invasive species and harmful pathogens clinging to construction equipment is one such solution. Here we explain how resource managers and contractors can decontaminate construction and field equipment by cleaning, disinfecting, and drying, thus minimizing the spread of harmful organisms.

Herpetological Review

Lampropeltis californiae (California kingsnake) behavior, male-male combat

There are few published descriptions of male-male combat in Lampropeltis spp. under natural conditions. Shaw (1951. Herpetologica 7:149-168) briefly described aggressive interactions between two captive male L. annulata (Mexican Milksnakes) that appeared to be associated with feeding, and Moehn (1967. Copeia 1967:480–481) described the "combat dance" between two male L. calligaster (Prairie Kingsnakes) in the field over a period of 30 minutes, with the snakes "completely intertwined..." and "...in constant motion." Carpenter and Gillingham (1977. Southwest. Nat. 22:517–524) described and illustrated interactions of two male L. holbrooki (Speckled Kingsnake) in a small artificial enclosure. Tabulated categories of male–male combat behaviors in Boid, Colubrid, and Viperid snakes (including Lampropeltis spp.) have been compared in an attempt to relate behavior patterns to phylogenetic relationships (Senter et al. 2014. PLoS ONE 9(9): e107528).

Herpetological Review

Tarentola annularis (white-spotted wall gecko)

USA: CALIFORNIA: Orange Co.: San Juan Capistrano (33.51°N,117.66°W; WGS 84). 25 August 2020. Samuel Fisher, Chelsea Martin, Robert Fisher. Verified by Gregory B. Pauly. Natural History Museum of Los Angeles County (LACM 191974). New county record. One juvenile (33 mm SVL) was collected, and another juvenile was seen 40 m away. Another juvenile was also observed during a second visit to the site on 19 September 2020. Wall geckos were first documented at this site since at least 2019 by Gary Nafis (G. Nafis, pers. comm. and as posted on www.californiaherps.com; 23 Aug 2020). Given that multiple individuals were observed at this site over 2 mo, this appears to be an established population. Invasive T. annularis were first detected in California in Redlands, San Bernardino County in the early 2000s (Wilcox et al. 2014. Herpetol. Rev. 45:464). This new Orange County population is ca. 80 km SW of the other known California population. While T. annularis has not spread much in the downtown urban center in Redlands over the last 20 years (S. Fisher, unpubl. data), it is possible it might expand its range more rapidly in a less urbanized habitat if there were more landscaping and natural features present. The only other published records for North America are from Florida where they are also invasive, and they have been known since the 1990s from several locations and continued to spread (Krysko et al. 2016. IRCF Rept. Amphib. 23:110-143). In the native range of T. annularis their habitat consists of desert, indicating that even though they are able to breed and persist in coastal Orange County they may not be in the optimal habitat (Ibrahim 2004. Zool. Middle East 31:23–38). A potential concern is that if T. annularis becomes more widespread in Southern California, they could present a risk to endemic nocturnal rock-dwelling species such as Xantusia henshawi and Phyllodactylus nocticolus because T. annularis has been shown to engage in saurophagy (Ibrahim 2004, op. cit.). It is much larger than these species (X antusia henshawi SVL = 70 mm; Phyllodactylus nocticolus SVL = 63 mm; Tarentola SVL = 108 mm) and well adapted to desert habitats where it could be a potential predator or competitor.

California

Enhanced between-site biosecurity to minimize herpetofaunal disease-causing pathogen transmission

Pathogens and their associated diseases have the potential to severely affect wildlife populations, including herpetofauna. Concern is increasing for transmission pathways of herpetofaunal diseases, especially for amphibians affected by the fungal pathogens Batrachochytrium dendrobatidis (Bd: Longcore et al. 1999) and B. salamandrivorans (Bsal: Martel et al. 2013), and amphibians and reptiles affected by Iridoviruses of the genus Ranavirus (Rv: Gray and Chinchar 2015) for which global human-mediated pathogen transmission is increasingly implicated (e.g., Fisher and Garner 2007; Picco and Collins 2008; Walker et al. 2008; Schloegel et al. 2009; Auliya et al. 2016; Martel et al. 2013, 2014; Fisher et al. 2012; Nguyen et al. 2017; O’Hanlon et al. 2018). Preventing the novel introductions of emerging infectious diseases is of paramount importance (Gray et al. 2015; Grant et al. 2016), as once they gain a foothold, they can be “essentially unstoppable” (Fisher et al. 2012). In order to minimize anthropogenic influences on disease dynamics, biosecurity procedures and decision-support systems for biosecurity prioritization have been developed. In general, such procedures for herpetofaunal emerging infectious diseases have been framed relative to the stages of pathogen emergence (pre-arrival, invasion front, epidemic, and establishment: e.g., Garner et al. 2016; Grant et al. 2017) as well as the intertwining contexts of herpetological research, natural resource management activities, integrated biodiversity conservation practices, and the human dimension of transmission of novel pathogens, (e.g., Gray et al. 2018; More et al. 2018).

Herpetological Review

Gopherus polyphemus (Gopher Tortoise) adult mortality

Gopherus polyphemus has typically high adult survivorship, with some populations reaching a mean annual survivorship of 93.4% (Howell et al. 2019. J. Wildl. Manage. 84:56–65). Instances of adult mortality are not commonly reported outside of large mortality events, and most often result from disease, starvation, dehydration, or chronic stress (Gates et al. 2002. Florida Sci. 65:185– 197; Cozad et al. 2020. Front. Vet. Sci. 7:120). Adult G. polyphemus also have few natural predators, which include Canis familiaris (Domestic Dog), Canis latrans (Coyote), and Lynx rufus (Bobcat; Ashton and Ashton 2008. The Natural History and Management of the Gopher Tortoise—Gopherus polyphemus [Daudin]. Krieger Publishing Company, Malabar, Florida. 275 pp.).

Herpetological Review