POPULATION STRUCTURE RESPONSE AND LIFE-CYCLE COMPRESSION IN DIFFERENT ENVIRONMENTS IN A KEYSTONE SPECIES

Taly Dawn Drezner

doi:10.1894/0038-4909-66.1.84

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Taly Dawn Drezner^1,*

¹Department of Physical Sciences, College of Southern Nevada, 6375 West Charleston Boulevard, Las Vegas, NV 89146

^*Correspondent: Taly.Drezner@csn.edu

Abstract

Previous work shows that individuals of the keystone cactus Carnegiea gigantea found in slower-growth, more arid populations live longer than those in wetter areas. This study follows by adding data for youth for these populations. The median age and the cut-off ages for the youngest deciles confirm that populations in wetter areas with faster growth have the most compressed life cycles, exhibited at all life stages. Populations are more youthful in wetter, faster-growth environments.

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Taly Dawn Drezner "POPULATION STRUCTURE RESPONSE AND LIFE-CYCLE COMPRESSION IN DIFFERENT ENVIRONMENTS IN A KEYSTONE SPECIES," The Southwestern Naturalist 66(1), 84-86, (11 May 2022). https://doi.org/10.1894/0038-4909-66.1.84

Received: 26 July 2020; Accepted: 22 November 2021; Published: 11 May 2022

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