Desert ants on a thermal tightrope

  title={Desert ants on a thermal tightrope},
  author={R. Wehner and Alan Clive Marsh and Sibylle Wehner},
MANY animals restrict their foraging activities to certain times of the day or night, but the Saharan silver ant Cataglyphis bombycina is exceptional in that all foragers leave their underground nest in an explosive outburst confined to a few minutes per day during the hottest midday period. The foraging activity of this 'thermophilic' ant is compressed into a small thermal window by predatory pressure on the one hand and heat stress on the other. 

Foraging patterns and strategies in an Australian desert ant

This species daily activity schedule and diet composition is investigated, and foraging behaviour is examined; Melophorus bagoti foragers have the ability to recruit nestmates to profitable food sources, but the exact mechanism requires further investigation.

The ontogeny of foragwehaviour in desert ants, Cataglyphis bicolor

Abstract. 1. Individually foraging desert ants, Cataglyphis bicolor, exhibit short foraging lives (half lifetime, i.e. half‐time of the exponential decay function: 4.5 days), in which they perform

Social Life in Arid Environments: The Case Study of Cataglyphis Ants.

Recent advances regarding the physiological, behavioral, life-history, colony, and ecological characteristics of Cataglyphis are reviewed and perspectives on future research that will build the understanding of organic adaptive responses to desertification are considered.

Foraging ecology of the thermophilic Australian desert ant, Melophorus bagoti

The paper describes the foraging ecology of the Australian desert ant, Melophorus bagoti, a thermophilic, diurnal scavenger with ground-nesting colonies. Overlapping foraging ranges, low foraging

eview raveling in clutter : Navigation in the Central Australian desert

This work reviews recent studies on this species concerning its use of habitual routes, distant landmarks, landmarks around the nest, and path integration, which is keeping track of the distance and direction traveled from one’s starting point.

Different effects of temperature on foraging activity schedules in sympatric Myrmecia ants

It is concluded that temperature determines the timing of foraging as well as the daily and seasonal foraging activity in M. croslandi, but has less obvious effects on M. pyriformis.

The ontogeny of foraging behaviour in desert ants , Cataglyphis bicolor

It is argued that in functional terms direction fidelity is related to the navigational benefits resulting from exploiting familiar (route-based) landmark information, and hence reduces round-trip time and by this physiological stress and predatory risk.

Coexisting in harsh environments: temperature-based foraging patterns of two desert leafcutter ants (Hymenoptera: Formicidae: Attini)

The results suggest that these two species have different thermal tolerance ranges that result in temporally separated foraging activities, and suggest that interference competition may have driven this temperature and temporal specialization in these two sympatric species.

Temperature and water relations in desert bees




Foraging Activity of the Western Harvester Ant in the Shortgrass Plains Ecosystem

Activity times of Pogonomyrmex occidentalis (Cresson) were found to vary with soil surface temperatures, and studies conducted on populations in lightly- and heavily-grazed pastures showed no significant differences in the rate of foraging extraction, foraging distance, time per foraging trip, or availability of forage (seeds).

Thermal Responses and Temperature Tolerance in a Diurnal Desert Ant, Ocymyrmex barbiger

  • A. Marsh
  • Environmental Science
    Physiological Zoology
  • 1985
It is indicated that ants could tolerate temperatures >CTM for short periods and that short but frequent thermal respites facilitated ant survival at temperatures = CTM.

Mandibular Gland Secretions as Alarm Pheromones in Two Species of the Desert Ant Cataglyphis

Mandibular gland secretion of two Cataglyphis species were chemically analyzed by combined gas chromatography mass spectrometry and found that C. bombycina consisted of citronellol and geraniol while that of C. nigra contained only Geraniol.

Ecology And Natural History Of Desert Lizards

It's coming again, the new collection that this site has, and the favorite ecology and natural history of desert lizards book is offered as the choice today.

Ecophysiology of Desert Reptiles

This work discusses the maintenance of Physiological Homeostasis in the Desert Environment, growth and Population Dynamics of Desert Reptiles, and Causes and Incidence of Mortality in Desert Lizards.

Ecology and natural history of desert lizards : analyses of the ecological niche and community structure.

The Description for this book, Ecology and Natural History of Desert Lizards: Analyses of the Ecological Niche and Community Structure, will be forthcoming.

Partage des ressources alimentaires entre deux Lacertidae sympatriques des îles Kerkennah (Tunisie): Acanthodactylus pardalis et Eremias olivieri

Etude du regime alimentaire et de ses variations spatiotemporelles chez ces deux lezards qui sont tous deux opportunistes. Le recouvrement global des niches ecologiques est eleve, en particulier en