Konrad, Anke , Milligan, Brook G. .
Habitat Requirements of Aquilegia chrysantha.
Aquilegia chrysantha (the golden columbine) is a perennial plant occurring in small, isolated patches located in mountainous regions throughout the Southwestern USA and Northern Mexico. This limited distribution and its association with mesic habitats suggests that specific environmental conditions are required. This study seeks to identify those habitat variables most predictive of Aquilegia chrysantha occurrence by examining different statistical approaches in conjunction with different predictive variables. Potential predictive variables include elevation, aspect, slope, water accumulation, and drainage direction. Both generalized linear and generalized additive models have been used to identify relationships between these environmental variables and occurrence. Elevation and aspect appear to be the most useful predictors at this point of the study; however, additional landscape variables remain to be investigated. Understanding the relationship between occurrence and environmental variables will improve predictions of the effect of climate change on species' distributions.
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1 - New Mexico State University, Biology, Msc 3Af, Las Cruces, NM, 88003-0032, USA
Presentation Type: Poster:Posters for Topics
Location: Ball Room & Party Room/SUB
Date: Monday, July 28th, 2008
Time: 12:30 PM