The reproductive period of tarantulas is constrained by their thermal preferences (Araneae, Theraphosidae)

de, Laura Montes; Pérez‐Miles, Fernando; Clavijo‐Baquet, Sabrina

doi:10.1016/j.jtherbio.2020.102665

Cited by 8 publications

(3 citation statements)

References 43 publications

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“…The measurement accuracy of the infrared thermometer was studied previously by comparing the measurements of the soil temperature with this device and the measurement obtained with a copper thermocouple. This method has previously been tested as a valid way to study the body temperature Alfaro, Figueroa, et al, 2013; Alfaro, Veloso, et al, 2013; Montes de Oca et al, 2020; Sepúlveda et al, 2014; Schwerdt et al, 2020; Taucare‐Ríos et al, 2020).…”

Section: Methodsmentioning

confidence: 99%

Evaluating thermal niche overlap of a predator–prey system: Do spiders choose suboptimal temperatures in pursuit of prey?

Taucare‐Ríos,

Chia‐Daponte,

Gaete‐Collao

2023

Physiological Entomology

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Ectotherm predators and their prey could potentially respond differently to habitat temperatures. Predators might select higher temperatures to increase their probability of capture while prey could select lower or higher temperatures that may enhance their escape capability. We used a combination of field and laboratory analyses to characterise the thermal niches of predator species and their potential arthropod prey. We studied a predator–prey system in northern Chile using a common desert‐dwelling spider Loxosceles laeta and three potential prey: a tenebrionid beetle Psammetichus costatus (Coleoptera), Pycnoscelus surinamensis (Blattodea) and Porcellio laevis (Isopoda). Results showed that the predator L. laeta selects warmer temperatures (Tp = 27.22 ± 4.87°C) in laboratory and lower temperatures in field conditions (Ts = 20.8 ± 1.59°C), with low temperatures in the morning and high temperatures at night. The three prey species had lower and different preferred temperatures than the predator in laboratory conditions. However, we found a high overlap in the thermal niche between the predator and their prey in field conditions, whereby the predator selected similar temperatures to its prey, one exception being P. laevis that chooses completely different habitat temperatures. This suggests that predators look for their prey in places with low temperatures that are not thermally suitable for them, whereas the prey may use this strategy of selecting low temperatures to evade potential predators.

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Section: Methodsmentioning

confidence: 99%

Evaluating thermal niche overlap of a predator–prey system: Do spiders choose suboptimal temperatures in pursuit of prey?

Taucare‐Ríos,

Chia‐Daponte,

Gaete‐Collao

2023

Physiological Entomology

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“…The evidence for lability in thermoregulatory behavior is mixed. For example, preferred body temperature (T pref ) responds to environmental temperature in spiders, with a phylogenetic correlation between the temperature of the activity period and T pref in several Tarantula species (Montes de Oca et al, 2020). On the other hand, among several lizard phylogenetic clades, T pref is historically constrained (Azócar et al, 2013), which makes it difficult for species to respond to climate change.…”

Section: Introductionmentioning

confidence: 99%

How do ectotherms perform in cold environments? Physiological and life-history traits in an Andean viviparous lizard

Clavijo‐Baquet

Orellana²,

Sabat³

et al. 2022

Front. Ecol. Evol.

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Both the mean and the variation in environmental temperature are increasing globally. Indeed, the predicted increases in temperature range from 2 to 4°C in the next 50 years. Ectotherms control body temperature by means of behavior selecting microsites with different temperatures, which makes them more susceptible to changes in climate. Nevertheless, lizards living in high mountain environments have developed several mechanisms to inhabit and colonize variable environments with extreme temperatures. These mechanisms include a high metabolism to be active at lower temperatures and viviparity to improve embryonic development. Despite behavioral thermoregulation acting as a buffer to changes in environmental temperature, other traits such as life-history traits may be less flexible. Consequently, in an attempt to understand how lizards cope with harsh habitats, we evaluated some physiological traits and responses of females of Liolaemus bellii from two contrasting slope sites with differences in environmental temperature and humidity, but at the same altitude in the southern Andes range. We collected pregnant females from opposite slopes and maintained them until parturition in a common-garden experiment. Females from the south-facing slope (S-slope) had higher preferred body temperature (Tpref) values before and after parturition and exhibited higher daily energy expenditure before parturition. Nevertheless, no difference in Tpref was shown by their offspring, suggesting a developmental plastic response or adaptation to lower environmental temperature. For instance, the higher metabolism during pregnancy could be associated with a shorter activity period on the snowy S-slope. Additionally, females from the S-slope had larger kidneys and gave birth later than N-slope females, likely due to developmental plasticity or genetic differentiation. How fixed these traits are, in individuals from the contrasting slopes, will determine the response capacity of the L. bellii population to climate change.

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“…Thermal biology of spiders has been poorly studied; thermoregulatory behaviour, thermal tolerances and preferences have been determined for a small fraction of all spider species, despite the ongoing research and accumulation of new data on more and more spider taxa (e.g. Anthony et al 2019; Barnes et al 2019;Montes de Oca et al 2020;Taucare-Rios et al 2020;Schwerdt et al 2020a). Such data are necessary to assess the suitability of habitats and understand the ecology of species (Hertz et al 1993;Canals 1998;Schmalhofer 1999;Frick et al 2007;Hanna & Cobb 2007;Veloso et al 2012;Alfaro et al 2013a).…”

Section: Introductionmentioning

confidence: 99%

Thermal preferences of two spider species: an orb-web weaver and a synanthropic funnel-web weaver

Napiórkowska

Templin

Grodzicki

et al. 2021

The European Zoological Journal

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Temperature, an important factor in the ecological niche, determines the individual fitness, distribution and abundance of many spider species. Typically, spiders from different habitats have different thermal preferences, which vary depending on the season, time of day, and reproductive status. Selected temperatures may also depend on thermal acclimation of animals. The study aimed at determining preferred temperatures of females of two spider species, synanthropic Eratigena atrica and garden Araneus diadematus, exposed to low (14°C) and high (23°C) acclimation temperatures. The mean preferred temperature observed in a thermal gradient varied between the species: E. atrica selected 13.7 ± 1.0°C, while A. diadematus selected 22.5 ± 1.5°C, irrespective of the acclimation temperature. Accordingly, thermal niche overlaps between the species were significantly lower than predicted by the random distribution. E. atrica changed their thermal environment on average 12.8 ± 1.9 times during the test, which made them more mobile than A. diadematus, changing their thermal environment 2.7 ± 0.5 times. On the other hand, the thermal niche breadth of A. diadematus acclimated to warm temperature was wider than that of E. atrica. The female behaviour may be related to the selection of optimal conditions with regard to food availability (location for web construction), shelter and/or, in the case of E. atrica, embryonic development.

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The reproductive period of tarantulas is constrained by their thermal preferences (Araneae, Theraphosidae)

Cited by 8 publications

References 43 publications

Evaluating thermal niche overlap of a predator–prey system: Do spiders choose suboptimal temperatures in pursuit of prey?

Evaluating thermal niche overlap of a predator–prey system: Do spiders choose suboptimal temperatures in pursuit of prey?

How do ectotherms perform in cold environments? Physiological and life-history traits in an Andean viviparous lizard

Thermal preferences of two spider species: an orb-web weaver and a synanthropic funnel-web weaver

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