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Desert ants on a thermal tightrope

WebJan 9, 2024 · Ant adhesion depends on liquid secretions that should become less viscous at high temperatures, causing ants to slip. However, tropical arboreal ants have high … WebDesert-dwelling, scavenger ants are among the most thermophilic insects yet identified. Of these desert ants, Cataglyphis bicolor (Hymenoptera: Formicidae), an inhabitant of the …

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WebSep 16, 2009 · Wehner R., Marsh A.C. and Wehner S. 1992. Desert ants on a thermal tightrope. Nature 357: 586–587. Article Google Scholar Download references. Acknowledgments. We thank B. Viginier, L. Brazier, and R. Sylvain for their valuable help during the field work, A. Bessière for the help in the lab and E. Fjerdingstad, T. Monnin … WebMay 23, 2024 · In ants, social thermal regulation is the collective maintenance of a nest temperature that is optimal for individual colony members. In the thermophilic ant Aphaenogaster iberica, two key behaviours regulate nest temperature: seasonal nest relocation and variable nest depth.Outside the nest, foragers must adapt their activity to … tod ethik https://smidivision.com

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WebDec 23, 2014 · Accordingly, it could be expected that ants of different sizes may show different thermal tolerance as a result of exposure to different temperatures (Baudier and O'donnel 2024). Few studies have ... WebOct 23, 2012 · At midday, surface temperatures in the desert often exceed 60°C. To be active at this time, animals need extraordinary behavioural or physiological adaptations. Desert ants, for instance, spend up to 75% of … WebSep 3, 2024 · The ants are so small that exposure to the desert sun for the full eight or ten minutes would cause them to exceed their upper lethal temperature of about … to develop or express ideas

These Desert Ants Gallop at a Blistering 108 Body …

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Desert ants on a thermal tightrope

Worker thermal tolerance in the thermophilic ant - Springer

WebJul 14, 2016 · Here, we combined isotopic and genetic analyses to study the developmental origin of queens and workers in a desert-dwelling ant, Cataglyphis tartessica (Amor & Ortega, 2014). Queens do not found new colonies alone but rather disperse with workers. As the latter are always wingless, selection pressures on specific queen traits such as … WebThe structure and thermal environment produced by the nest cones of the western harvester ant,Pogonomyrmex occidentalis, are investigated. The nest cone is oriented …

Desert ants on a thermal tightrope

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WebFeb 13, 2024 · Desert ants . on a thermal tightrope. Nature, 357: 586-587. doi: ... Here we relate thermal traits of rainforest ants to microclimate conditions from ground to canopy (microgeographic scale) along ... http://bioweb.uwlax.edu/bio203/f2013/baetke_aust/references.htm

WebForagers were active on the insolated surface between sand surface temperatures (Ts) of 27–67 C. At Ts > 51 C foragers periodically paused in relatively cooler thermal refuges, such as by remaining in the shade or by climbing above the desert floor on any available object. The frequency and length of pauses in thermal refuges increased with increasing …

WebAug 15, 2005 · There is anecdotal evidence for profound behavioral changes prior to and during earthquakes in many organisms, including arthropods such as ants. Behavioral or … WebSep 16, 2009 · Ants were exposed to two temperatures: 48°C, the peak of foraging and 52°C, the thermal limit for foraging in the field (Cerdá et al., 1998a). For each …

WebJun 15, 2024 · Most ants actively adapt depth and architecture of their nest to best match their own thermal optimum 48, and triggering the HSR might only be required when foragers exit the nest. In the Saharan ...

WebSep 28, 2024 · Extreme thermophilia in a Central Australian Ant, Melophorus bagoti. Physiological Zoology, 65, 885 – 905. Clark, M.S., Verde, C ., Fineschi, S ., et al. ( 2024 … tode toolWebGeografija. Sahara pokriva velike dele Alžirije, Čada, Egipta, Libije, Malija, Mavretanije, Maroka, Nigra, Zahodne Sahare, Sudana in Tunizije in se razteza več kot 9 milijonov kvadratnih kilometrov ter zajema približno četrtino afriške celine. Če bi bile vključene vse površine, s povprečno letno količino padavin manj kot 250 mm, bi Sahara obsegala več … todf305WebJan 3, 2014 · Gotwald H (1978) Trophic Ecology and Adaptation in Tropical Old World Ants of the Subfamily Dorylinae (Hymenoptera: Formicidae). Biotropica 10: 161–169. View Article Google Scholar 26. Wehner R, Marsh A, Wehner S (1992) Desert ants on a thermal tightrope. Nature 357: 586–587. View Article to develop diversity competenceWebForagers experienced periods when T b would have equaled or exceeded their critical thermal maximum (CTM) of 51.5 C. Laboratory experiments indicated that ants could … peony flower wreathWebJun 18, 2015 · Saharan silver ants, Cataglyphis bombycina, forage under extreme temperature conditions in the African desert. We show that the … tode wilhelmshavenWebOct 1, 2024 · Here, we show that ants and other small cursorial organisms face especially challenging thermal conditions in the relatively unpredictable spatial and temporal … to determine the alkalinity of water sampleWebOct 23, 2012 · At midday, surface temperatures in the desert often exceed 60°C. To be active at this time, animals need extraordinary behavioural or physiological adaptations. … to devil a daughter