Results 71 to 80 of about 16,367 (180)
Galeandra blanchetii exhibits a dual‐attraction strategy: male euglossine bees are lured by floral scents as a resource, while both sexes are deceived by non‐existent nectar. Pollination only occurs when bees enter the spur to search for nectar, highlighting an evolutionary transition towards the perfume flower syndrome in Catasetinae.
D. M. Camara +7 more
wiley +1 more source
L'activité de butinage des Apoides sauvages (Hymenoptera Apoidea) sur les fleurs de maïs à Yaounde (Cameroon) et réflexions sur la pollinisation des graminées tropicales [PDF]
The gatering activity of wild bees (Hymenoptera Apoidea) on flowers of maize at Yaound (Cameroon) and further considerations on pollination of the tropical Gramineae.
Tchuenguem-Fohouo F.N. +2 more
doaj
A thioredoxin-like protein (txl) gene was cloned from the bumblebee, Bombus ignitus. The B. ignitus txl (Bitxl) gene spans 1777 bp and consists of three introns and four exons coding for 285 amino acid residues with a conserved active site (CGPC).
Yong Soo CHOI +5 more
doaj +1 more source
ABSTRACT Nectar robbing is a widespread but unevenly documented component of plant–pollinator interactions, and quantitative assessments from African savanna systems remain limited. Based on a short field survey conducted over two consecutive days, this study quantified the frequency and reproductive consequences of nectar robbing in a population of ...
Luis Navarro
wiley +1 more source
Imagem de abelhas da família Apidae. Com seus hábitos generalistas e sua condição social, a família Apidae apresenta o maior número de indivíduos. Esta família possui alta diversidade em zonas quentes de baixas latitudes e há uma clara redução dos seus ...
Webbee
core
The endemic large carpenter bee, Xylocopa (Koptortosoma) ogasawarensis Matsumura (Hymenoptera: Apidae), on the oceanic Ogasawara (Bonin) Islands, located in the northwestern Pacific Ocean, approximately 1000 km south of the Japanese mainland, is a ...
Shinji SUGIURA
doaj +1 more source
Dispersion of Bumblebee Bombus Semenoviellus Skorikov (Hymenoptera, Apidae) in Poland
The aim of the study is to present all distribution sites of Bombus semenoviellus in Poland reported between 1988 and 2019. The increase of species dispersion was concluded, especially in the central part of the country, as well as the occurrence in the ...
Michołap Paweł +3 more
doaj +1 more source
BumbleBEEP: A Sensor System for Bumblebee Colony Monitoring
We present a bumblebee colony monitoring system, BumbleBEEP. The system is fitted with thermometers and a custom weight sensor. These record data up to every 15 min, recording bumblebee brood nest temperature, environmental ambient temperature, and colony growth.
Nynke Blömer +5 more
wiley +1 more source
The bees of the genus Cephalotrigona (locally known as “mombucas”) play a key role in natural environments but their bioecological features, required to design proper management and conservation strategies, are scarce in most species.
Alves Rogério M. D. O. +4 more
doaj +1 more source
Labial gland secretions of 26 males of the bumblebee Bombus lucorum (L.), collected in the Czech Republic, were analysed. The secretions consisted of 60 compounds; ethyl (Z)-9-tetradecenoate was the main component (average 53%). Although the males varied
Klára URBANOVÁ +3 more
doaj +1 more source

