Results 61 to 70 of about 20,943 (236)
Landscape influence on pollinator population genetic connectivity
Insect Conservation and Diversity, EarlyView.We analysed 113 studies from 59 countries, covering 96 bee and 21 hoverfly species, to review the evidence of environmental and landscape effects on the population genetic connectivity in pollinators. Environmental conditions (precipitation and temperature), topography (elevation and sea), and land use (agriculture, deforestation, urbanisation) were ...
Anna Schleimer, Alain C. Frantz
wiley +1 more source
European Journal of Entomology, 2001 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
Ordenação Baseada em Árvores de Fusão [PDF]
arXiv, 2014 Sorting is one of the most important problem in the computer science. After more than 60 years of studies, there are still many research devoted to develop faster sorting algorithms. This work aims to explain the Fusion Tree data structure. Fusion Tree was responsible for the first sorting algorithm with time $o(n \ lg n) $.
arxiv
Journal of Economic Entomology, 2019 Bumble bees (Bombus [Hymenoptera: Apidae]) are important pollinators for agricultural crops, which has led to their commercial domestication. Despite their importance, little is known about the reproductive biology of bumble bees native to North America ...
J. L. Mullins, J. Strange, A. Tripodi
semanticscholar +1 more source
Insect Molecular Biology, EarlyView.In insect sex determination pathways, the primary signals may vary within and between insect orders; however, the relay and terminal genes are more conserved. The upstream components of insect sex determination pathways ensure the downstream components are sex‐specifically spliced to regulate the development of male and female‐specific traits in a sex ...
Jade S. Ashmore +3 more
wiley +1 more source
European Journal of Entomology, 2008 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
Journal of Applied Entomology, EarlyView.Abstract Plant‐pollinator interactions exist along a continuum from complete specialisation to highly generalised, that may vary in time and space. A long‐held assumption is that large bees are usually the most effective pollinators of generalist plants.
Jeff Ollerton +5 more
wiley +1 more source
Journal of Applied Entomology, EarlyView.ABSTRACT With around 6000 species and 200 genera worldwide, hoverflies (Syrphidae, Diptera) are important and a diverse group of pollinators, second to wild bees (Hymenoptera). Here, we studied the diversity of Syrphidae visiting flowers in low shrubland maquis environments of three compensation areas in the Ajaccio region (Corsica, France). A total of
Laurent Plume +2 more
wiley +1 more source
European Journal of Entomology, 2018 Brazilian native meliponines are currently threatened by increased human impacts. The assessment of their genetic variation by microsatellite DNA markers can assist in the conservation of populations and help in the planning and establishment of ...
Geice Ribeiro Da SILVA +6 more
doaj +1 more source
Journal of Applied Entomology, EarlyView.ABSTRACT Spondias species are increasingly valued for their fruit production, which relies heavily on insect pollination. The flowers of these species are generalised, attracting a diverse array of insect visitors, including bees, beetles, flies, wasps and butterflies.
Guaraci Duran Cordeiro +5 more
wiley +1 more source