Results 201 to 210 of about 7,813,784 (261)

A plant immune receptor mediates tritrophic interactions by linking caterpillar detection to predator recruitment. [PDF]

open access: yesSci Adv
Guayazán Palacios N   +10 more
europepmc   +1 more source

Broad presence of ferromagnetism in bees and relationship to phylogeny, natural history, and sociality. [PDF]

open access: yesSci Adv
Russo L   +9 more
europepmc   +1 more source
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Catecholamines in social wasps

Comparative Biochemistry and Physiology A, Comparative Physiology, 1974
Abstract 1. 1. Various tissues originating from several species of social wasps showed significant amounts of catecholamines (noradrenaline, adrenaline, dopamine and 5-hydroxytryptamine). 2. 2. Dopamine proved to be the most abundant among the catecholamines examined. 3. 3.
J Ishay, Simon Gitter
exaly   +2 more sources

Visual Recognition in Social Wasps

2015
Social recognition, i.e. the ability to recognize and assign individual membership to a particular and relevant class, such as caste, dominance status, gender or colony, shapes the amazing organization of insect societies. Traditionally, it has been assumed that social recognition in social insects is mainly governed by chemicals.
CERVO, RITA   +2 more
openaire   +4 more sources

Social wasps (Hymenoptera, Polistinae) from the Brazilian savanna

, 2020
The present study was developed aiming to evaluate the richness and biogeography of social wasp species in the Brazilian savanna, Cerrado. In order to do so, we gathered data from specialized literature and field samplings performed at Sempre-Vivas ...
Marcos Magalhães de Souza   +4 more
semanticscholar   +1 more source

The thermogenic center in social wasps

Journal of Electron Microscopy, 2006
In the social wasps Vespa orientalis and Paravespula germanica (Hymenoptera, Vespinae), a thermogenic center has been found in the dorsal part of the first thoracic segment. The temperature in this region of the prothorax is higher by 6-9 degrees C than that at the tip of the abdomen, and this in actively flying hornets outside the nest (workers, males
Jacob S, Ishay   +5 more
openaire   +2 more sources

Social wasps in an urban fragment: seasonality and selection of nesting substrates

, 2020
Harsh weather and natural enemies are the two main causes of colony abandonment by social wasps. The selection of nesting sites with characteristics that provide shelter from these threats is therefore a key factor for colony survival. Our study aimed to
B. C. Barbosa   +3 more
semanticscholar   +1 more source

Pheromones in Social Wasps

2010
Social wasps need an efficient communication system to coordinate their members in the numerous activities of the colony. In this regard, the chemical channel is the most utilized by social wasps to transfer information in intraspecific (pheromones) and interspecific (allomones) communication.
Bruschini C.   +2 more
openaire   +3 more sources

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