Results 31 to 40 of about 4,517 (212)

Sinopsis de las especies del subgénero Centris (Ptilotopus) (Hymenoptera: Apidae) en Colombia

open access: yesBiota Colombiana, 2018
Se presenta una sinopsis de las especies de Centris (Ptilotopus) presentes en Colombia como una contribución al conocimiento de las abejas silvestres del país. Encontramos siete especies: C. americana, C. denudans, C. derasa, C. dimidiata, C. erythrosara,
Danny Vélez, Felipe Vivallo
doaj   +3 more sources

Taxonomic and functional diversity of urban bees of the world

open access: yesConservation 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

Bee assemblage (Hymenoptera, Apidae) of an area of natural grasslands in Vila Velha State Park and comparisons with bee surveys in other Brazilian areas of grasslands and cerrado [PDF]

open access: yes, 2009
A assembléia de abelhas (Hymenoptera, Apidae) de uma área restrita de campos naturais do Parque Estadual de Vila Velha, Paraná e comparações com áreas de campos e cerrado.
AGUIAR, Antonio J.C.   +2 more
core   +3 more sources

Concentrated vulnerabilities in bees: Diet specialists have smaller geographic ranges

open access: yesInsect Conservation and Diversity, EarlyView.
Niche breadth theory predicts a positive association between range size and diet breadth, which could concentrate risk among specialists, but this is not well established for bees. Using global occurrence data (range size) and natural history collection‐derived pollen data (diet breadth), we compared these traits in 633 species from six families and ...
Charles N. Thrift   +4 more
wiley   +1 more source

The bees of Greater Puerto Rico (Hymenoptera: Apoidea: Anthophila) [PDF]

open access: yes, 2008
The bee fauna of the Greater Puerto Rico area was studied. A review of the previous relevant studies is presented. An annotated catalog and information about the origin and distributional patterns are also provided.
Franz, Nico M., Genaro, Julio A.
core   +1 more source

Analgesic effects of platelet‐rich fibrin (PRF): A systematic review

open access: yesPeriodontology 2000, EarlyView.
Abstract Background Platelet‐rich fibrin (PRF), a second‐generation autologous platelet concentrate, has gained significant interest for its anti‐inflammatory and regenerative characteristics. While its role in tissue healing is well‐recognized, the analgesic potential of PRF remains under‐investigated.
Nathan E. Estrin   +6 more
wiley   +1 more source

Biochemical Characterization of a Kunitz‐Type Protease Inhibitor From Mimosa regnellii and Its Effects on Melanoma Cell Viability and Angiogenesis

open access: yesChemistry &Biodiversity, Volume 23, Issue 4, April 2026.
A Kunitz‐type serine protease inhibitor (JTI) purified from Mimosa regnellii seeds selectively targets melanoma cells. JTI triggers mitochondrial apoptosis, increases ROS and Ca2+ levels, arrests the cell cycle, and suppresses migration and angiogenesis without affecting healthy cells.
Luciana Maria Araújo Rabêlo   +12 more
wiley   +1 more source

First Record of Brazil nut Pollinators Outside Amazon Biome

open access: yesFloresta e Ambiente, 2022
We present the first records of insect visitors and pollinators of Bertholletia excelsa (Lecythidaceae) in a 25 years plantation outside the Amazon biome, flowering and producing Brazil nuts. We installed a platform to observe and photograph the insects.
Clarissa de Moraes Sousa   +11 more
doaj   +1 more source

Diversity and temporal variation of bees of the genus Centris (Hymenoptera: Apidae: Centridini) in the dry forest ecosystem Tatacoa Desert (Neiva-Huila) [PDF]

open access: yes, 2017
El género Centris es un grupo de origen neotropical, considerado un polinizador importante de varios ecosistemas. A pesar de su importancia, en Colombia es poca la información relacionada sobre su diversidad, particularmente en la zona sur del país ...
Sánchez Marroquín, Hugo Alfonso
core  

Differential effects of agricultural expansion on wild bee taxonomic and functional diversity

open access: yesFunctional Ecology, Volume 40, Issue 4, Page 878-892, April 2026.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Pollinators, especially bees, are in global decline, threatening biodiversity and food security. While intensive agriculture is a primary driver, its impact on bee functional diversity—particularly in the diverse Mediterranean region—remains understudied.
Manuel López‐Aliste   +9 more
wiley   +1 more source

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