Results 81 to 90 of about 7,637 (280)

Leucospis leucotelus (Hymenoptera: Leucospidae) as a parasitoid of the large carpenter bee Xylocopa lateralis (Hymenoptera: Apidae, Xylocopinae) in Colombia

Revista de la Sociedad Entomológica Argentina, 2019
Registramos la presencia de Leucospis leucotelus Walker parasitando nidos de Xylocopa (Schonnherria) lateralis Say en Colombia. Además, recopilamos todos los registros previos citados en la bibliografía de especies del género Leucospis asociados a ...
Mariano LUCIA, Hoffmann WOLFGANG, Victor H. GONZALEZ   +2 more
doaj  

Task allocation and reproductive skew in social mass provisioning carpenter bees in relation to age and size [PDF]

, 1998
The mass provisioning carpenter bees comprise two tribes, the Xylocopini and the Ceratinini. Although social nesting occurs in both tribes, no morphological castes have evolved and females are totipotent, which makes the tribe as a whole highly ...
Hogendoorn, K., Velthuis, H.H.W.
core   +1 more source

First record of the carpenter bee Xylocopa pubescens (Hymenoptera, Apidae) in the Canary Islands confirmed by DNA barcoding

Journal of Hymenoptera Research, 2020
Island ecosystems are particularly vulnerable to the introduction of exotic species that can have an impact on local fauna and flora. Here, the carpenter bee Xylocopa pubescens is reported in Gran Canaria (Canary Islands, Spain) for the first time.
C. Ruiz, Daniel Suárez, M. Naranjo, P. De la Rúa   +3 more
semanticscholar   +1 more source

Bacterial Communities in Three Parts of Intestinal Tracts of Carpenter Bees (Xylocopa tenuiscapa)

Insects, 2020
This study investigated different bacterial communities in three intestinal parts (foregut, midgut and hindgut) of Xylocopa tenuiscapa to understand the roles of gut bacteria. Our phylogenetic analysis revealed that X.
Phakamas Subta, Phongsathon Yodsuwan, R. Yongsawas, Ammarin In-on, Natapot Warrit, S. Panha, Kitiphong Khongphinitbunjong, P. Chantawannakul, Korrawat Attasopa, Terd Disayathanoowat   +9 more
semanticscholar   +1 more source

Long‐range pollen transport across the North Sea: Insights from migratory hoverflies landing on a remote oil rig

Journal of Animal Ecology, Volume 94, Issue 11, Page 2267-2281, November 2025.
This study identifies pollen from over 100 plant species—including wildflowers, food and crops—carried by hoverflies alighting onto an oilrig 200 km off the coast during seasonal migrations. Analysis of their movements indicates a huge potential to enhance long distance gene flow between plants and increase pollination services.
Toby D. Doyle, Eva Jimenez‐Guri, Jaimie C. Barnes, Craig Hannah, Simon Murray, Christopher D. R. Wyatt, Oliver M. Poole, Karl R. Wotton   +7 more
wiley   +1 more source

Studies on pollinator fauna and their relative abundance of sunflower (Helianthus annuus L.) at Pantnagar, Uttarakhand, India [PDF]

, 2013
Pollinators provide key services to both natural and agricultural ecosystems. Agricultural productivity depends, in part on pollinator populations from adjacent semi natural habitats.The diversity and abundance of different insect visitors on sunflower ...
Goswami, Vimla, Khan, M. S., Usha, Usha
core   +2 more sources

Solitary oil‐collecting bee in cities: Habitat suitability and lack of population structuring in Centris analis

Insect Conservation and Diversity, Volume 18, Issue 6, Page 982-996, November 2025.
Lack of genetic population structure in urban populations of Centris analis. Low morphological differentiation across four phytogeographical regions in Brazil. Monogyny‐monandry mating system in C. analis. Abstract The decline of insect populations worldwide has raised concerns about the negative impact on ecosystem services, particularly pollination ...
Leandro Pereira Rezende, Cintia Akemi Oi, Katia Maria Ferreira, Isabel Cristina de Godoy, Marco Antonio Del Lama   +4 more
wiley   +1 more source

Requerimentos de polinização e biologia floral da castanheira-do-brasil (Bertholletia excelsa Bonpl., Lecythidaceae) em um SAF em Tomé-Açu, Pará. [PDF]

, 2011
A castanheira-do-brasil (Bertholletia excelsa Bonpl.) pertence à família Lecythidaceae predominantemente alógama. Estudos prévios mostram que os polinizadores são abelhas da família Apidae (Bombus, Xylocopa, Eulaema, Epicharis, Centris).
CORRÊA, F. da S., MAUES, M. M., MOURA, T. do S. A. de, SANTOS, A. C. S.   +3 more
core  

Pollen exploitation by non‐native, feral honey bees: Potential consequences for interspecific competition

Insect Conservation and Diversity, Volume 18, Issue 6, Page 1109-1119, November 2025.
In Southern California, a global hotspot of bee biodiversity, predominantly feral populations of the exotic western honey bee constitute an estimated 90% of individual bees and 98% of bee biomass. Honey bee foragers remove 80% of total pollen during the first day flowers open on three common native species, with their first two visits removing over 60%
Dillon J. Travis, Joshua R. Kohn, David A. Holway, Keng‐Lou James Hung   +3 more
wiley   +1 more source

Pollen: ovule ratio and its relationship with other reproductive traits in some Passiflora species (Passifloraceae) [PDF]

, 2014
The pollen/ovule (P/O) ratio has been used as predictor of the reproductive system of angiosperms (lowest P/O values correspond to obligate autogamous species while the highest correlate with obligate xenogamous species) but it does not keep for all the ...
Amela Garcia, Maria Teresa, Gottsberger, Gerhard, Miguez, María Belén   +2 more
core   +1 more source