Results 51 to 60 of about 16,367 (180)
Taxonomic and functional diversity of urban bees of the world
Conservation Biology, EarlyView.Abstract Bees play a pivotal role in terrestrial environments. Urbanization can affect these organisms and the ecosystem services they provide. However, knowledge of the global diversity of urban bees is limited. Thus, we summarized data on urban bee species identities and occurrences; compared distributions of all bees with those found in urban ...
João C. F. Cardoso +10 more
wiley +1 more source
Tachinidae (Diptera) as Floral Visitors and Pollinators in Natural and Managed Systems
Entomologia Experimentalis et Applicata, EarlyView.We review the roles of bristle flies (Tachinidae) as pollinators in natural and managed systems. We find that most tachinid genera visit flowers and that floral‐adapted mouthparts have evolved repeatedly many times in the family. We review patterns of floral specificity and assess the efficacy of tachinids as pollinators with case studies.
John O. Stireman III +1 more
wiley +1 more source
Біологічні студії, 2022 Background. During 2019‒2021, from the first decade of March to the third decade of July on the territory of northeastern Ukraine, ornithological studies on hollow-nesting birds populating artificial nestings were carried out.
O. O. Yarys, A. B. Chaplygina
doaj +1 more source
Forest edges buffer effects of agricultural management on bee–plant interaction networks
Ecological Entomology, EarlyView.Agricultural management effects: Organic and conventional crop margins host similar bee and plant species, but network structure differs: organic farms exhibit higher interaction diversity, conventional farms higher connectance. Role of forest edges: Native forest edges stabilize bee–plant networks by providing continuous floral resources and suitable ...
Samantha Marx de Castro +6 more
wiley +1 more source
Influence of elevation, climate, snowmelt and floral abundance on body size of solitary bees
Ecological Entomology, EarlyView.We measured body size in bee species from a 10‐year specimen collection from Colorado sub‐alpine meadows (2450–3450 m) and tested effects of elevation and annual snowmelt, climate and floral abundance. 2 out of 4 bee species collected across a broad elevation range showed a decline in body size with higher elevations; the other two showed no effect ...
Lachlan C. Jones +5 more
wiley +1 more source
, 2016 O material traz imagens e um esquema de palpos labiais encontrados em abelhas da família ApidaeComponente Curricular::Ensino Fundamental::Séries Finais::Meio ...
Webbee
core +2 more sources
A survey of the genus Ceratina Latreille (Hymenoptera: Apidae) in northern Iran, with three new records [PDF]
Journal of Insect Biodiversity and Systematics, 2016 A field survey of the bee fauna was conducted in the north of Iran during 2009 to 2015. Special concern was given to the tribe Ceratinini (Hymenoptera; Apidae). Ten species of the genus Ceratina were collected and identified in the present study.
Mehdi Salarian +3 more
doaj
Ibis, EarlyView.Sympatric species are expected to use resources differently along one or more ecological dimensions. This can be complex when there is partial separation along multiple dimensions, such as where bird species exhibit similarities in habitat use and diet.
S. R. Davies +5 more
wiley +1 more source
Checklist of Hungarian Sphecidae and Apidae species (Hymenoptera, Sphecidae and Apidae) [PDF]
, 2011 Checklist of Hungarian sphecoid wasps (Sphecidae) and bees (Apidae). 306 Sphecidae and 704 Apidae species are listed. Species, which were collected 50 years or earlier, treated as extinct species. I have not seen voucher specimen of the following species:
Józan, Zsolt
core +1 more source
Insect Conservation and Diversity, EarlyView.Grassland fragmentation effects on cavity‐nesting Hymenoptera are habitat‐specific. Isolated sand steppe fragments are associated with higher brood‐cell abundance. In loess steppes, higher flower frequency increases bee brood‐cell production and parasitoid activity. Abstract The global decline in insects threatens ecosystem functioning, but the drivers
Edina Török +6 more
wiley +1 more source