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Influence Of Temperature On Passage Rate In Sceloporus Consobrinus, With Comparison To Congeners, Allison Litmer
Influence Of Temperature On Passage Rate In Sceloporus Consobrinus, With Comparison To Congeners, Allison Litmer
Arkansas Women in STEM Conference
Variation in energy acquisition, genetics, and environment determine life history traits among individuals, populations, and species. Therefore, influence of climate change may differ by population or even individual. Sceloporus lizards are used as model organisms for thermal biology, and climate modeling. However, it is often assumed that locally-measured thermal and bioenergetic responses apply among broadly similar species, and throughout intraspecific geographic range. The objective of this project was twofold: 1) to quantify the influence of temperature on passage rate in Sceloporus consobrinus from Arkansas, and 2) compare the influence of temperature on passage rate between S. consobrinus, and published …
Hydraulic Mechanisms Of Fungal-Induced Dieback In A Keystone Chaparral Species During Unprecedented Drought In California, Natalie M. Aguirre, Marissa E. Ochoa, Helen I. Holmlund, Frank E. Ewers, Stephen D. Davis
Hydraulic Mechanisms Of Fungal-Induced Dieback In A Keystone Chaparral Species During Unprecedented Drought In California, Natalie M. Aguirre, Marissa E. Ochoa, Helen I. Holmlund, Frank E. Ewers, Stephen D. Davis
Seaver College Research And Scholarly Achievement Symposium
Between 2012-2016, southern California experienced unprecedented drought that caused dieback in Malosma laurina, a keystone species of chaparral shrub communities. Dieback was especially severe in coastal exposures of the Santa Monica Mountains, leading to whole plant mortality exceeding 50% at some sites. We hypothesized that the endophytic fungus causing the dieback, Botryosphaeria dothidea, was successful in invading the xylem tissue of M. laurina because of protracted water stress, carbon starvation, or a combination of the two. We tested these possibilities in a controlled pot experiment by comparing three treatments, each inoculated with the fungus: (1) irrigated controls (2) …