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Influence of climatic variability on local population dynamics of a Sonoran Desert platyopuntia

Dates

Year
2005

Citation

Bowers, J E, 2005, Influence of climatic variability on local population dynamics of a Sonoran Desert platyopuntia: Journal of Arid Environments, v. 61, iss. 2, p. 193-210.

Summary

Age-based population dynamics of Opuntia engelmannii, a shrubby cactus with flattened cladodes, were investigated at a Sonoran Desert site protected from grazing since 1907. Demographic statistics were determined from births and deaths on six permanent vegetation plots mapped four times between 1968 and 2001. Moderate longevity (13–56 years) and modest per capita annual survival (0.9298) were associated with fairly rapid turnover; cycles of population growth and decline were thus evident over relatively short periods. Age–frequency distribution, determined for subpopulations in two neighboring habitats in 1996 and 2003, was used to calculate residual regeneration, an index of the difference between observed cohort size and idealized [...]

Contacts

Author :
Bowers, J E

Communities

  • USGS National Research Program

Tags

Provenance

Added to ScienceBase on Tue Apr 23 14:26:21 MDT 2013 by processing file <b>Biotic Response to Climatic Variability and Human Impacts in Arid Lands.xml</b> in item <a href="https://www.sciencebase.gov/catalog/item/504216b9e4b04b508bfd336b">https://www.sciencebase.gov/catalog/item/504216b9e4b04b508bfd336b</a>

Additional Information

Identifiers

Type Scheme Key
DOI http://sciencebase.gov/vocab/identifierScheme 10.1016/j.jaridenv.2004.09.003

Citation Extension

citationTypeJournal Article
journalJournal of Arid Environments
parts
typePages
value193-210
typeVolume
value61
typeIssue
value2

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