Results 91 to 100 of about 205,142 (247)

Bionomy and Nesting Behavior of the Bee Epanthidium tigrinum (Schrottky, 1905) (Hymenoptera: Megachilidae) in Trap-Nests

Sociobiology, 2020
About 85% of pollinating bees are solitary, but few are used for agricultural pollination. The Anthidiini tribe looks very promising in Brazil, in the light of ecosystem utility, but  it is still a species with poorly scientific research[EdM1] .
Angela Maria S. Gomes, Cláudia Inês da Silva, Arianne Moreira Cavalcante, Epifânia Emanuela M. Rocha, Breno Magalhães Freitas   +4 more
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, Cauê Nagatani, Vania Nobuko Yoshikawa, Franciny Yuko Urushima, Kelli dos Santos Ramos, Guaraci Duran Cordeiro, Maria Santina de Castro Morini   +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, Melanie R. Kazenel, Kristin Conrad, Jane E. Ogilvie, Ian K. Breckheimer, Rebecca E. Irwin   +5 more
wiley   +1 more source

Experiments on the structure and stability of mode-2 internal solitary-like waves propagating on an offset pycnocline [PDF]

, 2015
The structure and stability of mode-2 internal solitary-like waves is investigated experimentally. A rank-ordered train of mode-2 internal solitary waves is generated using a lock release configuration.
P. A. Davies, Hoebers, Ruud, R. P. Hoebers, Davies, P. A., Carr, Magda, Davies, Peter, Carr M, M. Carr, Davies PA, Carr, M., Hoebers RP, Hoebers, R. P.   +11 more
core   +1 more source

Multilevel spatial structure impacts on the pollination services of Comarum palustre (Rosaceae).

PLoS ONE, 2014
Habitat destruction and fragmentation accelerate pollinator decline, consequently disrupting ecosystem processes such as pollination. To date, the impacts of multilevel spatial structure on pollination services have rarely been addressed.
Laurent Somme, Carolin Mayer, Anne-Laure Jacquemart   +2 more
doaj   +1 more source

Social bees can enhance the persistence of plant–bee interactions during seasonal changes in seasonally dry tropical forests

Ecological Entomology, EarlyView.
Social bees, especially Meliponini, formed a persistent core that maintained plant–bee interactions across both dry and green seasons in the Caatinga. Persistence was not linked to broader diets; social bees used fewer plant species, despite availability, indicating selective tracking of temporally concentrated floral resources.
Ana Letícia S. Lima, Cândida M. L. Aguiar, Celso F. Martins, Emanuelle L. S. Brito   +3 more
wiley   +1 more source

Solitary bee abundance and species richness in dynamic agricultural landscapes

, 2013
Remerciements : F. Le Moal, R. YantierInternational audienceWe investigated the influence of the landscape structure on solitary bee abundance and species richness in an agricultural area of western France. We focused on the role of semi-natural habitats,
Chifflet, Rémy, Henry, Mickaël, Jacques Baudry, Baudry, Jacques, Burel, Francoise, Le Féon, Violette, Agnès Ricroch, Rémy Chifflet, Ricroch, Agnès E, Bernard E. Vaissière, Vaissiere, Bernard E., Violette Le Féon, Françoise Burel, Vaissière, Bernard, Mickaël Henry, Ricroch, Agnès   +15 more
core   +1 more source

Honeybees directly outcompete other flower visitors through interference competition on shared resource

Ecological Entomology, EarlyView.
The outcomes of encounters between honeybees and other flower visitors were observed on two plant species. Pollinators either win, lose or share a resource. Competitive interactions led to greater than expected ‘wins’ for honeybees. The honeybee displaced or gave chase when interacting with another pollinator in at least 20% of winning outcomes ...
Victoria A. Buckle, Peter M. J. Brown, Toby Carter, Thomas C. Ings   +3 more
wiley   +1 more source

Comparative temporal response of toxicity for the neonicotinoid clothianidin and organophosphate dimethoate insecticides in two species of solitary bee (Osmia bicornis and Osmia cornuta)

Ecotoxicology and Environmental Safety
Solitary bees provide essential pollination services. Concerns for the decline of these wild bee species have led to calls for their inclusion in pesticide risk assessment. Solitary bees differ from honey bees in their physiology and ecology and this may
Helen Hesketh, Jan Baas, Elma Lahive, Alexander G. Robinson, David J. Spurgeon, Matthew S. Heard   +5 more
doaj   +1 more source

Spinoza on Humans as Social Animals

European Journal of Philosophy, EarlyView.
Abstract Spinoza repeatedly suggests that humans are set apart from other animals by their rational and moral abilities. Yet he disparages the traditional definition of the human as a ‘rational animal’ and several of his other views suggest that these abilities are not sufficient by themselves to characterize human nature.
Ruben Noorloos
wiley   +1 more source