Latitudinal comparison of the thermal biology in the endemic lizard Liolaemus multimaculatus

Stellatelli, Oscar Aníbal; Vega, Laura; Block, Carolina; Rocca, Camila; Bellagamba, Patricio J.; Cruz, Félix Benjamín

doi:10.1016/j.jtherbio.2019.102485

Cited by 11 publications

(19 citation statements)

References 81 publications

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“…In addition, the mean thermal optimum of L. multimaculatus was lower than its range of thermal preference (34.05–39.14°C; Stellatelli et al . 2013, 2020). This finding agrees with that of Garland et al .…”

Section: Discussionmentioning

confidence: 99%

“…The mismatch between CT Min and environmental temperatures may be explained by behavioral adjustments to the environment that may lead some physiological traits to vary in the opposite direction with respect to geographical gradients (Pettersen 2020). The major challenge faced by L. multimaculatus at low latitude is to avoid overheating, operative temperatures in these sites reach 41°C, while individuals from higher latitudes need to use warmer microenvironments to increase their body temperature above low operative temperatures (T e = 31.5°C; Stellatelli et al 2020). These results suggest that L. multimaculatus may adjust some physiological traits to the temperatures it fre-quently experiences in the field.…”

Section: Discussionmentioning

confidence: 99%

“…(2017) and modified from Stellatelli et al . (2020), the Temperate Oceanic Zone in horizontal black solid lines; the Temperate‐Highland of Ventania Hills Zone in vertical black solid lines; and the Semi‐arid Zone in grid black lines.…”

Section: Methodsmentioning

confidence: 99%

“…2019; Stellatelli et al . 2020). For these reasons, this set of trial temperatures was used in previous studies of locomotor performance in liolaemid lizards (e.g.…”

Section: Methodsmentioning

confidence: 99%

“…Despite the latitudinal changes in climatic conditions, L. multimaculatus conserves its field body temperature in different sites (mean T b = 34.07 ± 3.02°C), while its preferred temperatures decrease up to 2°C toward higher latitudes (Stellatelli et al . 2020). Liolaemid lizards show a complex mixture of conservative thermal biology traits, such as field body temperature and CT Max ; and labile ones, such as preferred temperatures (Labra et al .…”

Section: Introductionmentioning

confidence: 99%

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Latitudinal pattern of the thermal sensitivity of running speed in the endemic lizard Liolaemus multimaculatus

et al. 2021

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Physiological performance in lizards may be affected by climate across latitudinal or altitudinal gradients. In the coastal dune barriers in central‐eastern Argentina, the annual maximum environmental temperature decreases up to 2°C from low to high latitudes, while the mean relative humidity of the air decreases from 50% to 25%. Liolaemus multimaculatus, a lizard in the family Liolaemidae, is restricted to these coastal dunes. We investigated the locomotor performance of the species at 6 different sites distributed throughout its range in these dune barriers. We inquired whether locomotor performance metrics were sensitive to the thermal regime attributable to latitude. The thermal performance breadth increased from 7% to 82% with latitude, due to a decrease in its critical thermal minimum of up to 5°C at higher latitudes. Lizards from high latitude sites showed a thermal optimum, that is, the body temperature at which maximum speed is achieved, up to 4°C lower than that of lizards from the low latitude. At relatively low temperatures, the maximum running speed of high‐latitude individuals was faster than that of low‐latitude ones. Thermal parameters of locomotor performance were labile, decreasing as a function of latitude. These results show populations of L. multimaculatus adjust thermal physiology to cope with local climatic variations. This suggests that thermal sensitivity responds to the magnitude of latitudinal fluctuations in environmental temperature.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

“…2019; Stellatelli et al . 2020). For these reasons, this set of trial temperatures was used in previous studies of locomotor performance in liolaemid lizards (e.g.…”

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Latitudinal pattern of the thermal sensitivity of running speed in the endemic lizard Liolaemus multimaculatus

et al. 2021

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Rural occupancy in a montane burrowing snake: the importance of thermal and microhabitat resources during the rainy season

Raya-García,

Arteaga-Tinoco

2024

Biologia

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Thermal and microhabitat resources are two fundamental requirements that affect the life history of any ectotherm. Furthering our understanding of how reptilian species meet these ecological requirements is crucial for assessing the impact of environmental and anthropogenic changes on populations. Here, we explored some fundamental aspects of the thermal and microhabitat ecology of Conopsis biserialis, a small, burrowing, and endemic earthsnake of central Mexico. The study was conducted during the rainy season in a montane site disturbed by rural activities. The mean field body temperature (Tb) of C. biserialis was 26 ± 0.6 ºC. Field Tb did not differ significantly between sex and development stages. However, we found that Tb was positively correlated with substrate, air, and under-rock temperatures (Ts, Ta, and Tr) in the rural microhabitat. Regression analysis showed that substrate and under-rock temperatures (Ts and Tr) were the parameters that best explained Tb variability in the individuals. The temperature and relative humidity under shelter did not differ significantly among shelter types and/or rock sizes. In addition to these thermal traits, earthsnakes selected and utilized six common biotic and physical elements of the rural microhabitat. Most individuals used high proportions of large and medium rocks for sheltering, and these rocks were selected around crop fences and cleared grasslands where the soil can be either covered with low vegetation or bare. Our results suggest that, during the rainy season, individuals of C. biserialis use and select some biotic and structural resources of the rural microhabitats, and were capable of actively regulating their temperature by using shelters with high values of microclimatic homogeneity.

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Shifts in thermal preference of introduced Asian house geckos (Hemidactylus frenatus) in temperate regions of southeastern Australia

Lapwong

Dejtaradol

Webb

2020

Journal of Thermal Biology

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Latitudinal comparison of the thermal biology in the endemic lizard Liolaemus multimaculatus

Cited by 11 publications

References 81 publications

Latitudinal pattern of the thermal sensitivity of running speed in the endemic lizard Liolaemus multimaculatus

Latitudinal pattern of the thermal sensitivity of running speed in the endemic lizard Liolaemus multimaculatus

Rural occupancy in a montane burrowing snake: the importance of thermal and microhabitat resources during the rainy season

Shifts in thermal preference of introduced Asian house geckos (Hemidactylus frenatus) in temperate regions of southeastern Australia

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