Licht-im-Terrarium: Literaturdatenbank

WIKINDX Resources

Conley, D. A., & Lattanzio, M. S. (2022). Active regulation of ultraviolet light exposure overrides thermal preference behavior in eastern fence lizards. Functional Ecology, n/a(n/a), 1–11. 
Added by: Sarina (2022-06-19 14:27:04)   Last edited by: Sarina (2022-09-26 12:36:30)
Resource type: Journal Article
DOI: https://doi.org/10.1111/1365-2435.14114
BibTeX citation key: Conley2022
View all bibliographic details
Categories: Englisch = English
Keywords: Thermoregulation = Thermoregulation, Ultraviolett = Ultraviolet, Vitamin D = Vitamin D
Creators: Conley, Lattanzio
Collection: Functional Ecology
Views: 5/258
Views index: %
Popularity index: 12.5%
Abstract
Abstract Over a century of ecophysiological studies on lizards have perpetuated the assumption that basking and shuttling movements between sun and shade function solely for temperature regulation. However, these behaviors also modulate exposure to ultraviolet (UV) wavelengths that are essential for maintaining physiological homeostasis as well as ensuring proper growth and development and enhancing long-term fitness. An alternative hypothesis is that lizards also actively regulate their UV exposure. In this scenario, UV needs may even override temperature needs (or vice versa), generating asymmetries in the ability of a lizard to regulate both conditions equally. We test this hypothesis using field and laboratory data collected on adult Sceloporus undulatus. We found that S. undulatus actively regulate UV exposure and prioritize UV over temperature, favoring body temperatures much higher than preferred values to sustain preferred UV exposure. In stark contrast, temperature had no reciprocal impact on UV regulation behavior. Our field data support these patterns, suggesting that lizards may even seek out hotter environments despite thermal costs to enhance UV exposure. We conclude that S. undulatus actively regulate for UV as well as temperature. Unfortunately, outside of zoos and private hobbyists, appreciation of the importance of UV for ectotherm survival and reproductive success has been minimal. Addressing this deficit will therefore be vital to improve our understanding of the factors shaping the evolution of ectotherm photoregulation behavior in nature.
  
wikindx 6.1.0 ©2003-2020 | Total resources: 1366 | Username: -- | Bibliography: WIKINDX Master Bibliography | Style: American Psychological Association (APA) | Database queries: 48 | DB execution: 0.04542 secs | Script execution: 0.11055 secs