Size variation and foraging rate in bumblebees ( Bombus terrestris )
نویسندگان
چکیده
منابع مشابه
Winter Active Bumblebees (Bombus terrestris) Achieve High Foraging Rates in Urban Britain
BACKGROUND Foraging bumblebees are normally associated with spring and summer in northern Europe. However, there have been sightings of the bumblebee Bombus terrestris during the warmer winters in recent years in southern England. But what floral resources are they relying upon during winter and how much winter forage can they collect? METHODOLOGY/PRINCIPAL FINDINGS To test if urban areas in ...
متن کاملRecognition and Avoidance of Contaminated Flowers by Foraging Bumblebees (Bombus terrestris)
Bumblebee colonies are founded by a single-mated queen. Due to this life history trait, bumblebees are more susceptible to parasites and diseases than polyandrous and/or polygynous social insects. A greater resistance towards parasites is shown when the genetic variability within a colony is increased. The parasite resistance may be divided into different levels regarding the step of the parasi...
متن کاملMechanosensory hairs in bumblebees (Bombus terrestris) detect weak electric fields.
Bumblebees (Bombus terrestris) use information from surrounding electric fields to make foraging decisions. Electroreception in air, a nonconductive medium, is a recently discovered sensory capacity of insects, yet the sensory mechanisms remain elusive. Here, we investigate two putative electric field sensors: antennae and mechanosensory hairs. Examining their mechanical and neural response, we...
متن کاملMolecular heterochrony and the evolution of sociality in bumblebees (Bombus terrestris).
Sibling care is a hallmark of social insects, but its evolution remains challenging to explain at the molecular level. The hypothesis that sibling care evolved from ancestral maternal care in primitively eusocial insects has been elaborated to involve heterochronic changes in gene expression. This elaboration leads to the prediction that workers in these species will show patterns of gene expre...
متن کاملThe genetic architecture of immune defense and reproduction in male Bombus terrestris bumblebees.
Understanding the architecture of genetic variation, that is the number, effect, location, and interaction, of genes responsible for phenotypic variability in nature is important for the understanding of microevolutionary processes. In this study, we have used a quantitative trait loci (QTL) approach to uncover the genetic architecture of fitness-relevant traits associated with reproduction and...
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ژورنال
عنوان ژورنال: Insectes Sociaux
سال: 2002
ISSN: 0020-1812,1420-9098
DOI: 10.1007/s00040-002-8293-z