Results 31 to 40 of about 205,142 (247)
Some periodic and solitary travelling-wave solutions of the short pulse equation [PDF]
, 2008 Exact periodic and solitary travelling-wave solutions of the short pulse equation are ...
Parkes, E.J.
core +4 more sources
Direct Access to Chiral Piperidines by Enantioselective HAT‐Initiated C(sp3)─H Oxidation
Angewandte Chemie, EarlyView.The direct desymmetrization of piperidines is achieved through manganese‐catalyzed enantioselective α‐C(sp3)─H oxidation with hydrogen peroxide, affording versatile chiral N,O‐acetals in good yields and with high enantio‐ and diastereoselectivity. These intermediates provide access to diverse functionalized piperidines with retention of chirality ...
Sethuraman Muthuramalingam +5 more
wiley +2 more sources
The Bees among Us: Modelling Occupancy of Solitary Bees
PLOS ONE, 2016 Occupancy modelling has received increasing attention as a tool for differentiating between true absence and non-detection in biodiversity data. This is thought to be particularly useful when a species of interest is spread out over a large area and sampling is constrained.
J Scott MacIvor, Laurence Packer
openaire +4 more sources
Frontiers in Physiology, 2022 The evolution of insect sociality has repeatedly involved changes in developmental events and their timing. Here, we propose the hypothesis that loss of a canonical regulator of moulting and metamorphosis, prothoracicotropic hormone (PTTH), and its ...
Claudinéia P. Costa +5 more
doaj +1 more source
High resolution prediction maps of solitary bee diversity can guide conservation measures [PDF]
, 2021 Wild bees are key ecosystem components making their decline a cause for concern. An effective measure to increase wild bee diversity is to enhance plant diversity.
Steinert, Mari +10 more
core +1 more source
Unbiased RNA Shotgun Metagenomics in Social and Solitary Wild Bees Detects Associations with Eukaryote Parasites and New Viruses. [PDF]
PLoS ONE, 2016 The diversity of eukaryote organisms and viruses associated with wild bees remains poorly characterized in contrast to the well-documented pathosphere of the western honey bee, Apis mellifera.
Karel Schoonvaere +5 more
doaj +1 more source
Impact of Bee Species and Plant Density on Alfalfa Pollination and Potential for Gene Flow
Psyche: A Journal of Entomology, 2010 In outcrossing crops like alfalfa, various bee species can contribute to pollination and gene flow in seed production fields. With the increasing use of transgenic crops, it becomes important to determine the role of these distinct pollinators on alfalfa
Johanne Brunet, Christy M. Stewart
doaj +1 more source
Geoderma, 2023 Most research on wild bees has focused on their role as pollinators, while their importance as soil ecosystem engineers has been largely overlooked, despite the fact that most species nest in the soil.
Philippe Tschanz +4 more
doaj +1 more source
Brain microRNAs among social and solitary bees [PDF]
Royal Society Open Science, 2019 ABSTRACT Evolutionary transitions to a social lifestyle in insects are associated with lineage-specific changes in gene expression, but the key nodes that drive these regulatory changes are unknown. We examined the relationship between social organization and lineage-specific microRNAs (miRNAs). Genome scans across 12 bee species showed
Karen M. Kapheim +6 more
openaire +6 more sources
Pesticide Exposure Assessment Paradigm for Solitary Bees [PDF]
Environmental Entomology, 2018 Current pesticide risk assessment for bees relies on a single (social) species, the western honey bee, Apis mellifera L. (Hymenoptera: Apidae). However, most of the >20,000 bee species worldwide are solitary. Differences in life history traits between solitary bees (SB) and honey bees (HB) are likely to determine differences in routes and levels of ...
Sgolastra F. +9 more
openaire +2 more sources