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CactiBiology and Uses$
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Park Nobel

Print publication date: 2002

Print ISBN-13: 9780520231573

Published to California Scholarship Online: March 2012

DOI: 10.1525/california/9780520231573.001.0001

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Population and Community Ecology

Population and Community Ecology

(p.91) Chapter 6 Population and Community Ecology

Alfonso Valiente-Banuet

Héctor Godínez-Alvarez

University of California Press

Cacti show considerable diversity of life form in tropical and subtropical America. Species diversity increases considerably toward the tropics, Mexico being the most important center, with 850 species and 54 genera. This chapter considers the key aspects in the population and community ecology of cacti. It examines how abiotic and biotic factors interact to influence the distribution and abundance of a particular species, leading to particular survivorship, fecundity, growth patterns, and groups of species, with an emphasis on the maintenance of biodiversity. To understand the population dynamics of cacti, the relative importance of abiotic and biotic factors should be assessed. The chapter also analyzes the geomorphic history of the localities in which populations of cacti occur to understand population dynamics at the landscape level.

Keywords:   cacti, population, community ecology, abiotic factors, biotic factors, survivorship, fecundity, growth patterns, biodiversity, population dynamics

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