Abstract
Monthly samples of Norops humilis were collected from Dec. 1973 through Dec. 1974. Dissection of sacrificed animals revealed that females reach sexual maturity at a body length of 32 mm, whereas males reach maturity at lengths as low as 25 mm. Sexually mature lizards of both sexes were found throughout the year, confirming that reproduction occurs year-round. However, a gap in the occurrence of juveniles occurred during the months of Feb. and Mar. 1974, indicating that recruitment of juveniles was not constant throughout the year. Contrary to previous data on N. humilis from Costa Rica, lizards were more abundant during the dry season (Jan. - May) than during the wet season.References
Andrews, R.M. 1982. Spatial variation in egg mortality of the lizard Anolis Iimifrons. Herpetologica 38: 165-171.
Andrews, R.M. & O.J. Sexton. 1981. Water relations of the eggs of Anolis auratus and Anolis limifrons. Ecology 62: 556-567.
Andrews, R.M., & A.S. Rand. 1982. Seasonal breeding and long-term population fluctuations in the lizards Anolis limifrons. In E.G. Leigh, Jr., A.S. Rand & D.W. Windsor (eds.). The ecology of a tropical forest, long-term changes. Smithsonian Institution Press.
Andrews, R.M., A.S. Rand & S. Guerrero. 1982. Seasonal and special variation in the annual cycle of a tropical lizard. In G.J. Rhodin & K. Miyata (eds.). Advances in herpetology and evolutionary biology: essays in honor of E. E. Williams. Harvard University, Cambridge, Mass.
Corn, M.J. 1981. Ecological separation of Anolis lizards in a Costa Rican rain foresto Ph.D. dissertation, Univ. of Florida, Gainesville.
Fitch, H.S. 1970. Reproductive cycles in lizards and snakes. Misc. Publ. Mus. Nat. Hist. Univ. Kansas 52: 1-247.
Fitch, H.S. 1973a. A field study of Costa Rican lizards. Univ. Kansas Sci. Bull. 50: 39-126.
Fitch, H.S. 1973b. Population structure and survivorship in some Costa Rican lizards. Occas. Papers Univ. Kansas Mus. Nat. Hist. 18: 1-41.
Fleming, T.H. & R.S. Hooker. 1975. Anolis cupreus: the response of a lizard to tropical seasonality. Ecology 56: 1243-1261.
Lieberman, S.S. 1982. The ecology of the leaf litter herpetofauna of a neotropical rainforest: La Selva, Costa Rica. Ph.D. dissertation, Univ. of Southern California, Los Angeles.
Lieberman, S.S. & C.F. Dock. 1982. Analysis of the leaf litter arthropod fauna of a lowland tropical evergreen forest site (La Selva. Costa Rica). Rev. Biol. Trop. 30: 27-34.
Sexton, O.J. 1967. Population changes in a tropical lizard, Anolis limifrons on Barro Colorado Island, Panama Canal Zone. Copeia 1967: 219-222.
Sexton, O.J., E.P. Ortleb, L.M. Hathaway, R.E. Ballinger & P. Licht. 1971. Reproductive cycles of three species of anoline lizards from the Isthmus of Panama. Ecology 52: 201-215.
Talbot, J.J. 1977. Habitat selection in two tropical anoline lizards. Herpetologica 33: 114-123.
Talbot, J.J. 1979. Time budget, niche, overlap, interand intraspecific aggression in Anolis humilis and Anolis limifrons in Costa Rica. Copeia. 1979: 472-481.
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