Life history and demographic variation in the lizard Sceloporus graciosus: A long-term study

Journal Article · Wed Dec 01 04:00:00 EST 1993 · Ecology; (United States)

DOI:https://doi.org/10.2307/1939592· OSTI ID:5429487

Tinkle, D W ^[1]; Dunham, A E ^[2]; Congdon, J D ^[3]

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1. Univ. of Michigan, Ann Arbor, MI (United States)
2. Univ. of Pennsylvania, Philadelphia, PA (United States)
3. Savannah River Ecology Lab., Aiken, SC (United States)

An 11-yr study of life history and demographic variation in the sagebrush lizard Sceloporus graciosus was carried out on two study areas (Rattlesnake Ridge and Ponderosa Flat) in the Kolob Mesa Section of Zion National Park, Utah. Two primary objectives of this mark-recapture study were to: (1) quantify variation in age structure, age, and size at maturity, age-specific survivorship and fecundity, and individual growth rates, and (2) conduct a series of density reduction experiments designed to elucidate the effects of density on growth rates and survival of posthatchling lizards. In addition, the authors examined the relationships of variation in population density and deviation from long-term average precipitation and temperature to variation in individual growth, reproduction, and demography. 43 refs., 5 figs., 11 tabs.

• OSTI ID: 5429487
• Journal Information: Ecology; (United States), Journal Name: Ecology; (United States) Vol. 74:8; ISSN ECOLAR; ISSN 0012-9658
• Country of Publication: United States
• Language: English

Related Subjects

550100* -- Behavioral Biology
59 BASIC BIOLOGICAL SCIENCES
ANIMALS
DEMOGRAPHY
LIFE CYCLE
LIZARDS
REPTILES
VERTEBRATES