Nocturnal Behavior of Clark’s Spiny Lizard (Sceloporus clarkii; Squamata; Lacertilia) in Acaponeta, Nayarit, México

There are several documented reports of nocturnal activity in reptiles considered exclusively diurnal (Lara- Resendiz 2020, Perry et al. 2008). Clark?s Spiny Lizard (Sceloporus clarkii) is considered a diurnal active species, but there is a single observation of an adult male attempting to feed on moths at night over a two-hour period (Martínez-Méndez et al. 2013). Herein we report on additional nocturnal activities of S. clarkii and include descriptive thermal data.Fil: Loc Barragán, Jesús A.. Tecnológico Nacional de México. Instituto Tecnológico Superior de Zacapoaxtla. Maestría en Ciencias Ambientales; MéxicoFil: Lara Resendiz, Rafael Alejandro. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Diversidad y Ecología Animal. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Instituto de Diversidad y Ecología Animal; ArgentinaFil: Woolrich Piña, Guillermo A.. Tecnológico Nacional de México. Instituto Tecnológico Superior de Zacapoaxtla; Méxic

Nocturnal Behavior of Clark’s Spiny Lizard (Sceloporus clarkii; Squamata; Lacertilia) in Acaponeta, Nayarit, México

There are several documented reports of nocturnal activity in reptiles considered exclusively diurnal (Lara- Resendiz 2020, Perry et al. 2008). Clark?s Spiny Lizard (Sceloporus clarkii) is considered a diurnal active species, but there is a single observation of an adult male attempting to feed on moths at night over a two-hour period (Martínez-Méndez et al. 2013). Herein we report on additional nocturnal activities of S. clarkii and include descriptive thermal data.Fil: Loc Barragán, Jesús A.. Tecnológico Nacional de México. Instituto Tecnológico Superior de Zacapoaxtla. Maestría en Ciencias Ambientales; MéxicoFil: Lara Resendiz, Rafael Alejandro. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Diversidad y Ecología Animal. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Instituto de Diversidad y Ecología Animal; ArgentinaFil: Woolrich Piña, Guillermo A.. Tecnológico Nacional de México. Instituto Tecnológico Superior de Zacapoaxtla; Méxic

Data from: Range and niche shifts in response to past climate change in the desert horned lizard (Phrynosoma platyrhinos)

During climate change, species are often assumed to shift their geographic distributions (geographic ranges) in order to track environmental conditions – niches – to which they are adapted. Recent work, however, suggests that the niches do not always remain conserved during climate change but shift instead, allowing populations to persist in place or expand into new areas. We assessed the extent of range and niche shifts in response to the warming climate after the Last Glacial Maximum (LGM) in the desert horned lizard Phrynosoma platyrhinos, a species occupying the western deserts of North America. We used a phylogeographic approach with mitochondrial DNA sequences to approximate the species range during the LGM by identifying populations that exhibit a genetic signal of population stability versus those that exhibit a signal of a recent (likely post-LGM) geographic expansion. We then compared the climatic niche that the species occupies today with the niche it occupied during the LGM using two models of simulated LGM climate. The genetic analyses indicated that P. platyrhinos persisted within the southern Mojave and Sonoran deserts throughout the latest glacial period and expanded from these deserts northwards, into the western and eastern Great Basin, after the LGM. The climatic niche comparisons revealed that P. platyrhinos expanded its climatic niche after the LGM towards novel, warmer and drier climates that allowed it to persist within the southern deserts. Simultaneously, the species shifted its climatic niche towards greater temperature and precipitation fluctuations after the LGM. We concluded that climatic changes at the end of the LGM promoted both range and niche shifts in this lizard. The mechanism that allowed the species to shift its niche remains unknown, but phenotypic plasticity likely contributes to the species ability to adjust to climate change

Allignment of mtDNA sequences

Alignment of mitochondrial ND4 sequences for all samples of P. platyrhino

Climate data

Climatic values extracted from occurrence records of Phrynosoma platyrhinos for the current climate and two reconstructions of the LGM climat

Volcanic ash from Puyehue-Cordón Caulle eruptions affects running performance and body condition of Phymaturus lizards in Patagonia, Argentina

The Puyehue-Cordón Caulle eruption of 4 June 2011 dispersed about 100 million tonnes of pyroclastic materials resulting in ash accumulations of 30 cm depth on the Patagonian steppe, an area occupied by several lizard species. Herein we analysed, by experimental trials, the effects of ash and slope on running performance of two endemic and vulnerable species, Phymaturus excelsus and Phymaturus sinervoi, restricted to volcanic rock outcrops in Patagonia. We also determined the effect of ash fall on body condition by comparing the same populations before and after the volcanic eruption. Locomotion of P. excelsus, adapted to rocky and steep outcrops, was more affected in a negative way by ash. In contrast, P. sinervoi, which lives in mixed habitats with flat rocks and sandy substrates, ran more slowly on the inclined surface but was unaffected by ash, suggesting the two species are well adapted to the habitats they occupy. In spite of impacts of ash deposition on locomotion and potentially the feeding, reproduction and dispersal activity of P. excelsus, lizards captured 18 months after ash deposition showed improved body condition. Our study site for P. sinervoi received less ash deposition and hence body condition was similar before and after ash fall. We hypothesize that negative effects of ash on lizards were counteracted by competitive release; ash deposition caused an acute and significant increase in mortality of herbivorous competitors such as hares and sheep that feed upon the same flowers and fruits included in the Phymaturus diet.Fil: Ibarguengoytía, Nora. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Instituto de Investigaciones en Biodiversidad y Medioambiente. Universidad Nacional del Comahue. Centro Regional Universidad Bariloche. Instituto de Investigaciones en Biodiversidad y Medioambiente; ArgentinaFil: Cabezas, Facundo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Instituto de Investigaciones en Biodiversidad y Medioambiente. Universidad Nacional del Comahue. Centro Regional Universidad Bariloche. Instituto de Investigaciones en Biodiversidad y Medioambiente; ArgentinaFil: Boretto, Jorgelina Mariela. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Instituto de Investigaciones en Biodiversidad y Medioambiente. Universidad Nacional del Comahue. Centro Regional Universidad Bariloche. Instituto de Investigaciones en Biodiversidad y Medioambiente; ArgentinaFil: Piantoni, Carla. Universidad de Sao Paulo; BrasilFil: Kubisch, Erika Leticia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Instituto de Investigaciones en Biodiversidad y Medioambiente. Universidad Nacional del Comahue. Centro Regional Universidad Bariloche. Instituto de Investigaciones en Biodiversidad y Medioambiente; ArgentinaFil: Fernández, Mariela. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Instituto de Investigaciones en Biodiversidad y Medioambiente. Universidad Nacional del Comahue. Centro Regional Universidad Bariloche. Instituto de Investigaciones en Biodiversidad y Medioambiente; ArgentinaFil: Lara Resendiz, Rafael A.. University of California; Estados Unidos. Universidad Nacional Autónoma de México; MéxicoFil: Méndez de la Cruz, Fausto Roberto. Universidad Nacional Autónoma de México; MéxicoFil: Scolaro, Jose Alejandro. Universidad Nacional de la Patagonia; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Sinervo, Barry Raymond. Universidad de California; Estados Unido