نتایج جستجو برای: honeybees

تعداد نتایج: 2517  

2010
Alice Valentini Pierre Taberlet

Honey is produced by honeybees from nectar and from secretions of living plants. It reflects the honeybees’ diet and the local plant communities. Honey also shows different plant compositions in different geographical locations. We propose a new method for studying the plant diversity and the geographical origin of honey using a DNA barcoding approach that combines universal primers and massive...

2008
Ahmet Zengin Hessam Sarjoughian Hüseyin Ekiz

Natural systems can offer important concepts for modeling network systems. A biologically-inspired discrete-event modeling approach is described for studying networks’ scalability and performance traits. Key adaptive and emergent attributes of honeybees and their societal properties are incorporated into a set of simulation models that are developed using the Discrete Event System Specification...

2004
Brigitte Huber P. A. Couvillon M. E. Bitterman

Foraging honeybees (Apis mellifera) were trained individually to choose between 2 identical targets set close together on a large table in a heterogeneous surround. Discrimination was facilitated by the introduction of a small object that was nearer to 1 target than the other. It was also facilitated by the introduction of a longer object or a curved shield that was not differentially placed wi...

2005
Ahmet Zengin Hessam Sarjoughian Huseyin Ekiz

The simulation study of networks remains attractive due to desire to achieve better important traits such as scalability and performance. This paper describes a biologically inspired discrete-event modelling approach for simulating networks. It introduces a synergistic modelling approach by incorporating key attributes of honeybees and their societal properties into a set of simulation models d...

2003
Reuven Dukas Douglass H. Morse

In a field experiment, the bumblebee, B. ternarius, visited milkweed patches harboring crab spiders, Misumena atia, at a lower frequency than patches free of crab spiders, and honeybees showed a similar but non-significant trend. Two other bumblebee species, B. terricola and B. agans, did not avoid the spider patches. The latter two species are larger than B. ternarius and honeybees and suffer ...

2008
Reuven Dukas

The lifetime pattern of performance in a wide variety of animals including humans is remarkably similar. Initial performance is quite low, gradually increasing to a peak at about midlife, followed by a steady decrease into old age (Dukas 1998, 2008c; Helton 2007). The universal nature of the inverted-U pattern of lifetime performance suggests that common mechanisms are involved across species. ...

Journal: :The Quarterly journal of experimental psychology. B, Comparative and physiological psychology 2001
P A Couvillon A C Campos T D Bass M E Bitterman

Previous findings of intramodal but not of intermodal blocking in foraging honeybees prompted a new series of experiments with colours, odours, a proximal visual landmark, and a localized geomagnetic anomaly as stimuli. In Experiments 1-2, the landmark was blocked by both colour and odour. In Experiments 3-6, the anomaly was blocked by both colour and odour, but the anomaly failed to block eith...

Journal: : 2023

Nowadays, feeding honeybees is not only considered a way to provide them with energy, but also as factor that affects the normal functioning of all bees body systems and prevention various diseases. This study investigated quality natural artificial carbohydrate feed for honeybees, well presented data on their digestibility in conditions northwestern region European part Russia. A correlation w...

Journal: :Communicative & integrative biology 2010
Mariana Gil

The study of expectations of reward helps to understand rules controlling goal-directed behavior as well as decision making and planning. I shall review a series of recent studies focusing on how the food gathering behavior of honeybees depends upon reward expectations. These studies document that free-flying honeybees develop long-term expectations of reward and use them to regulate their inve...

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