TY - JOUR
T1 - Sexual Dimorphism and Reproductive Characteristics of the Cozumel Spiny Lizard, Sceloporus cozumelae (Squamata: Phrynosomatidae) from Mexico
AU - Ramírez-Bautista, Aurelio
AU - Cruz-Elizalde, Raciel
AU - Galván-Hernández, DULCE MARíA
AU - Hernández-Salinas, Uriel
AU - Berriozabal-Islas, Christian
N1 - Publisher Copyright:
© 2020 by The Herpetological Society of Japan
PY - 2020/2
Y1 - 2020/2
N2 - We analyzed sexual dimorphism and reproductive characteristics (minimum size at sexual maturity, clutch size, and reproductive period) of females and males of Sceloporus cozumelae, a species endemic to the Yucatan Peninsula, Mexico, and which belongs to the Sceloporus variabilis group. Sexual dimorphism was recorded, with the males being larger in snout–vent length, head length, head width, forearm length, and tibia length. The average clutch size was 3.4. Females containing eggs and vitellogenic follicles were observed at the same time, indicating that the population produces at least two clutches annually. Minimum size at sexual maturity was similar for both sexes (40 mm), and reproduction, determined according to the months in which gonads were obtained, was synchronous between males and females. The species shows high similarity to populations of S. variabilis in sexual dimorphism and reproductive characteristics; however, it has smaller snout–vent length when compared to other populations of S. variabilis in Mexico.
AB - We analyzed sexual dimorphism and reproductive characteristics (minimum size at sexual maturity, clutch size, and reproductive period) of females and males of Sceloporus cozumelae, a species endemic to the Yucatan Peninsula, Mexico, and which belongs to the Sceloporus variabilis group. Sexual dimorphism was recorded, with the males being larger in snout–vent length, head length, head width, forearm length, and tibia length. The average clutch size was 3.4. Females containing eggs and vitellogenic follicles were observed at the same time, indicating that the population produces at least two clutches annually. Minimum size at sexual maturity was similar for both sexes (40 mm), and reproduction, determined according to the months in which gonads were obtained, was synchronous between males and females. The species shows high similarity to populations of S. variabilis in sexual dimorphism and reproductive characteristics; however, it has smaller snout–vent length when compared to other populations of S. variabilis in Mexico.
KW - Endemic species
KW - Life history characteristics
KW - Morphological characteristics
KW - Sceloporus variabilis group
UR - http://www.scopus.com/inward/record.url?scp=85091100755&partnerID=8YFLogxK
U2 - 10.5358/hsj.39.19
DO - 10.5358/hsj.39.19
M3 - Artículo
AN - SCOPUS:85091100755
SN - 1345-5834
VL - 39
SP - 19
EP - 27
JO - Current Herpetology
JF - Current Herpetology
IS - 1
ER -