author = "Cerdá, Xim"

Encontrado 166 documentos, página mostrada 1 de 17

Behavioural and physiological traits to thermal stress tolerance in two Spanish desert ants

Author(s): Cerdá, Xim
Description: In Mediterranean open habitats, dominant ant species are heat-intolerant and risk-averser, foraging very far from their critical thermal limits (CTM). Subordinate are heat-tolerant (thermophilic) and risk-proner, foraging very near their CTM, running a high heat mortality risk, but having better per...
Language(s): Inglés

Behavioural and physiological traits to thermal stress tolerance in two Spanish desert ants

Author(s): Cerdá, Xim
Description: In Mediterranean open habitats, dominant ant species are heat-intolerant and risk-averser, foraging very far from their critical thermal limits (CTM). Subordinate are heat-tolerant (thermophilic) and risk-proner, foraging very near their CTM, running a high heat mortality risk, but having better per...
Language(s): Inglés

Predation by ants on arthropods and other animals

Author(s): Cerdá, Xim , Dejean, A.
Description: Ants are the most widely distributed and most numerically abundant group of social insects. First, they were ground- or litter-dwelling predators or scavengers, and certain taxa evolved to adopt an arboreal way of life. Most ant species are generalist feeders, and only some ground-nesting and ground...
Language(s): Inglés

Interference interactions and nest usurpation between two subordinate ant species

Description: Camponotus foreli (Emery) and Cataglyphis iberica (Emery) are two sympatric, subordinate ant species that have been found to fight in attacks that usually conclude with the death of many workers of both species and with nest abandonment by C. iberica. These harassment episodes have been observed in ...
Language(s): Inglés

Links between worker polymorphism and thermal biology in a thermophilic ant species

Description: The role of the broadly polymorphic worker caste of the thermophilic and Cataglyphis velox is discussed. Two different hypotheses have been tested: 1) worker polymorphism allows colonies to collect different-sized prey more quickly and with greater energetic efficiency; 2) it implies greater variabi...
Language(s): Inglés

Alternative strategies by thermophilic ants to cope with extreme heat: Individual versus colony level traits

Description: Cataglyphis is a fairly homogeneous ant genus which is widespread over the arid regions of the Old World. All Cataglyphis species are thermal specialists which are adapted to extreme environments where they forage at nearly lethal temperatures. This study focusses on two Cataglyphis species which di...
Language(s): Inglés

Patterns of diversity and composition of Mediterranean ground ant communities tracking spatial and temporal variability in the thermal environment

Description: The present study analyzed ant community structure and the factors affecting it in the Spanish Mediterranean area. The aim of this study was to test whether temperature controls the composition and diversity of the ground ant fauna and the spatial and temporal distribution of dominance groups along ...
Language(s): Inglés

Interference interactions and nest usurpation between two subordinate ant species

Description: Camponotus foreli (Emery) and Cataglyphis iberica (Emery) are two sympatric, subordinate ant species that have been found to fight in attacks that usually conclude with the death of many workers of both species and with nest abandonment by C. iberica. These harassment episodes have been observed in ...
Language(s): Inglés

Encontrado 166 documentos, página mostrada 1 de 17

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