Ecology of the Snake Philodryas patagoniensis (Serpentes, Colubridae) from Northeast Argentina

López, María Luisa García; Giraudo, Alejandro R.

doi:10.1670/07-087.1

Cited by 30 publications

(41 citation statements)

References 2 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…External morphological features as pholidosis, measures of body regions and patterns of coloration of specimens are fundamental for taxonomic studies of snakes (Thomas 1976, Di-Bernardo & Lema 1990, López & Giraudo 2008. Pholidosis is the arrangement or pattern of scales and shields on the body surface of reptiles and is one of features for identification of snakes, and is a feature that may have variations within the same species (Dowling 1951a, b).…”

Section: Introductionmentioning

confidence: 99%

“…Research on sexual dimorphism performed in several species of snakes of the families Colubridae and Dipsadidae demonstrate that the females have a highest snout-vent length compared to males (Solorzano & Cerdas 1989, Rivas & Burghardt 2001, Zug et al 2001, and males have a highest tail length than females (King 1989, López & Giraudo 2008, Matias et al 2011.…”

Section: Introductionmentioning

confidence: 99%

“…The Patagonia green racer, Philodryas patagoniensis (Girard, 1858) (Dipsadidae), occurs in Argentina, Bolívia, Brazil, Chile, Paraguay and Uruguay (Thomas 1976, Peters et al 1986, López & Giraudo 2008). This species was described by Girard (1858) as Callirhinus patagoniensis, based on two specimens collected in coastal region of Patagonia, Argentina.…”

Section: Introductionmentioning

confidence: 99%

“…The study of López & Giraudo (2008) with specimens of P. patagoniensis from Argentina is the only one that reveals significant differences in pholidosis of males and females of this species. Other studies with P. patagoniensis have addressed for ecological and natural history approaches (see Thomas 1976, Cei 1993, Achaval & Olmos 1997, Fowler & Salomão 1994a, b, 1995, Hartmann & Marques 2005, López & Giraudo 2008.…”

Section: Introductionmentioning

confidence: 99%

“…Other studies with P. patagoniensis have addressed for ecological and natural history approaches (see Thomas 1976, Cei 1993, Achaval & Olmos 1997, Fowler & Salomão 1994a, b, 1995, Hartmann & Marques 2005, López & Giraudo 2008. Not only in specimens of P. patagoniensis, as in the whole tribe Philodryadini, from Brazil the studies with sexual dimorphism associated with pholidosis and morphometric features of this species are still scarce (Fowler & Salomão 1994a, b, 1995, Pontes 2007, López & Giraudo 2008, Zaher et al 2008.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Morphological variation of Philodryas patagoniensis (Girard, 1858) (Serpentes, Dipsadidae) from Brazil, based on the study of pholidosis, coloration and morphometric features

Gouveia

Novelli

Vieira³

et al. 2017

Biota Neotrop.

View full text Add to dashboard Cite

GOUVEIA, R.V., NOVELLI, I.A., VIEIRA, F.M., SOUSA, B.M. Morphological variation of Philodryas patagoniensis (Girard, 1858) (Serpentes, Dipsadidae) from Brazil, based on the study of pholidosis, coloration and morphometric features. Biota Neotropica. 17(1): e20160237. http://dx.doi.org/10.1590/1676-0611-BN-2016-0237 Abstract:The current study aimed to verify the relationship between the patterns of coloration, the morphometrical features and pholidosis of specimens of Philodryas patagoniensis from Brazil, with the sexual dimorphism of this species. We studied specimens of P. patagoniensis deposited in several herpetological collections from Brazil. A total of 355 specimens were analyzed, of these 145 were males (87 adults and 58 juveniles) and 210 were females (134 adults and 76 juveniles). Adult specimens exhibit sexual dimorphism in snout-vent length, tail length, head length, number of ventral shields, and number of subcaudal shields. The analysis of variance showed that the adult females are significantly longer than adult males, both at snout-vent length and tail length. Females have a greater number of ventral shields (138-210) than males (151-200). The specimens studied also exhibit two distinct patterns of coloration unrelated to geographical or sexual variations. Keywords

show abstract

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Morphological variation of Philodryas patagoniensis (Girard, 1858) (Serpentes, Dipsadidae) from Brazil, based on the study of pholidosis, coloration and morphometric features

Gouveia

Novelli

Vieira³

et al. 2017

Biota Neotrop.

View full text Add to dashboard Cite

show abstract

Is xenodontine snake reproduction shaped by ancestry, more than by ecology?

Bellini

Arzamendia

Giraudo

2016

Ecology and Evolution

Self Cite

View full text Add to dashboard Cite

One of the current challenges of evolutionary ecology is to understand the effects of phylogenetic history (PH) and/or ecological factors (EF) on the life‐history traits of the species. Here, the effects of environment and phylogeny are tested for the first time on the reproductive biology of South American xenodontine snakes. We studied 60% of the tribes of this endemic and most representative clade in a temperate region of South America. A comparative method (canonical phylogenetic ordination—CPO) was used to find the relative contributions of EF and PH upon life‐history aspects of snakes, comparing the reproductive mode, mean fecundity, reproductive potential, and frequency of nearly 1,000 specimens. CPO analysis showed that PH or ancestry explained most of the variation in reproduction, whereas EF explained little of this variation. The reproductive traits under study are suggested to have a strong phylogenetic signal in this clade, the ancestry playing a big role in reproduction. The EF also influenced the reproduction of South American xenodontines, although to a lesser extent. Our finding provides new evidence of how the evolutionary history is embodied in the traits of living species.

show abstract

The Wallacean Shortfall and the role of historical distribution records in the conservation assessment of an elusive Neotropical snake in a threatened landscape

Serrano

Vieira-Alencar

Díaz‐Ricaurte

et al. 2023

Journal for Nature Conservation

View full text Add to dashboard Cite

Ecology of the Snake Philodryas patagoniensis (Serpentes, Colubridae) from Northeast Argentina

Cited by 30 publications

References 2 publications

Morphological variation of Philodryas patagoniensis (Girard, 1858) (Serpentes, Dipsadidae) from Brazil, based on the study of pholidosis, coloration and morphometric features

Morphological variation of Philodryas patagoniensis (Girard, 1858) (Serpentes, Dipsadidae) from Brazil, based on the study of pholidosis, coloration and morphometric features

Is xenodontine snake reproduction shaped by ancestry, more than by ecology?

The Wallacean Shortfall and the role of historical distribution records in the conservation assessment of an elusive Neotropical snake in a threatened landscape

Contact Info

Product

Resources

About