TY - JOUR
T1 - Reproductive strategy of male and female eastern spiny lizards Sceloporus spinosus (Squamata: Phrynosomatidae) from a region of the Chihuahuan Desert, México
AU - Ramírez-Bautista, Aurelio
AU - Stephenson, Barry P.
AU - Hernández-Ibarra, Xóchitl
AU - Hernández-Salinas, Uriel
AU - Cruz-Elizalde, Raciel
AU - Lozano, Abraham
AU - Smith, Geoffrey R.
PY - 2012
Y1 - 2012
N2 - We examined the reproductive strategy of male (n = 84) and female (n = 62) S. spinosus from a single population in San Luis Potosí, México. The male reproductive cycle peaked in March and April and declined from May to September, and was not correlated with fat body mass, but was positively correlated with liver mass. The female reproductive cycle peaked in April and May and declined from June through November, and was not correlated with fat body mass, but was correlated with liver mass. Mean clutch size based on oviductal eggs was 17.5 ± 1.9 (n = 12), and was not correlated with female snout-vent length. Our results for S. spinosus are generally similar to those of other populations of the S. spinosus species group. However, there are differences in some traits (e.g., timing of the initiation of the female reproductive cycle; clutch size), suggesting that the S. spinosus group could serve as another model group within Sceloporus to explore ecological and evolutionary causes of among population life history variation.
AB - We examined the reproductive strategy of male (n = 84) and female (n = 62) S. spinosus from a single population in San Luis Potosí, México. The male reproductive cycle peaked in March and April and declined from May to September, and was not correlated with fat body mass, but was positively correlated with liver mass. The female reproductive cycle peaked in April and May and declined from June through November, and was not correlated with fat body mass, but was correlated with liver mass. Mean clutch size based on oviductal eggs was 17.5 ± 1.9 (n = 12), and was not correlated with female snout-vent length. Our results for S. spinosus are generally similar to those of other populations of the S. spinosus species group. However, there are differences in some traits (e.g., timing of the initiation of the female reproductive cycle; clutch size), suggesting that the S. spinosus group could serve as another model group within Sceloporus to explore ecological and evolutionary causes of among population life history variation.
KW - Clutch size
KW - Lizard
KW - México
KW - Reproductive cycle
KW - Sceloporus spinosus
UR - http://www.scopus.com/inward/record.url?scp=84871916626&partnerID=8YFLogxK
M3 - Artículo
AN - SCOPUS:84871916626
SN - 1827-9635
VL - 7
SP - 239
EP - 252
JO - Acta Herpetologica
JF - Acta Herpetologica
IS - 2
ER -