Results 101 to 110 of about 5,729 (219)

Three new species of Eupetersia Blüthgen, 1928 (Hymenoptera, Halictidae) from the Oriental Region [PDF]

open access: yes, 2012
Three new species, Eupetersia (Nesoeupetersia) singaporensis sp. nov., collected in a mangrove swamp in Singapore, and Eupetersia (Nesoeupetersia) sabahensis sp.
Pauly, Alain
core   +3 more sources

The first record of phoretic mite Sennertia cerambycina (Acari, Chaetodactylidae) in Serbia [PDF]

open access: yesTravaux du Muséum National d’Histoire Naturelle “Grigore Antipa”
The phoretic mite Sennertia cerambycina (Scopoli, 1763) (Acari, Chaetodactylidae) has been documented for the first time within the territory of Serbia.
Mihailo Vujić, Vukašin Gojšina
doaj   +3 more sources

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

open access: yes, 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   +2 more
core   +1 more source

Observations on an unusual behaviour in the Carpenter Bee Xylocopa aestuans (Latreille, 1802) (Hymenoptera: Apidae) of the Western Ghats, India

open access: yesJournal of Threatened Taxa, 2010
The Carpenter Bee Xylocopa aestuans is a known pollen and nectar feeder. However, at Anshi National Park of Karnataka (India), the bee happens to be switching over to facultative carnivorous habit as they are found to feed on Red Tree Ants Oecophylla ...
S.A. Punekar, N.K.P. Kumaran, H.R. Bhat
doaj   +1 more source

Reproductive phenology and pollination biology of Canavalia brasiliensis Mart. ex Benth (Fabaceae). [PDF]

open access: yesBiotemas, 2009
This work studied the phenology and biology of the pollination of C. brasiliensis in an area of its natural occurrence (Pocinhos – PB). Fifteen plants were marked and observed every two weeks for the study of phenology.
Roberta Sales Guedes   +2 more
doaj  

Cargas polínicas de abelhas polinizadoras de Byrsonima chrysophylla Kunth. (Malpighiaceae): fidelidade e fontes alternativas de recursos florais Pollen loads of pollinator bees of Byrsonima chrysophylla Kunth. (Malpighiaceae): fidelity and alternative sources of flower resources

open access: yesActa Botânica Brasílica, 2008
Byrsonima chrysophylla, conhecida popularmente como murici pitanga, é uma espécie arbustiva que ocorre em restinga. Dentre seus visitantes, além de abelhas da tribo Centridini, também se encontram com freqüência abelhas Xylocopini.
Éville Karina Maciel Delgado Ribeiro   +2 more
doaj   +1 more source

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

open access: yes, 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

A NEW SPECIES OF XYLOCOPA (NANOXYLOCOPA) FROM BRAZIL (HYMENOPTERA, APIDAE)

open access: yesPapéis Avulsos de Zoologia
Xylocopa bella sp. nov., the second known species of the subgenus Xylocopa (Nanoxylocopa) Hurd & Moure, is newly described from the Espinhaço mountain range, in the state of Minas Gerais, and the Chapada Diamantina, in the state of Bahia, in eastern ...
GABRIEL A.R. MELO
doaj   +1 more source

Abejas asociadas a cultivos de Berenjena (Solanum melongena L., Solanaceae) en invernadero del Cinturón Hortícola de La Plata, Buenos Aires, Argentina [PDF]

open access: yes, 2014
El cultivo de berenjena tiene en muchos países gran importancia económica, por este motivo actualmente se encuentra en amplia expansión a nivel mundial. En este trabajo se estudiaron las abejas asociadas a este cultivo producido en invernadero en la zona
Abrahamovich, Alberto Horacio   +4 more
core  

Megachile sculpturalis, the Giant Resin Bee, overcomes the blossom structure of Sunn Hemp (Crotalaria juncea) that impedes pollination [PDF]

open access: yes, 2016
Bee species that are effective pollinators of sunn hemp (Crotalaria juncea L.: Fabaceae: Crotalarieae) are few in number because of the large size and papilionaceous structure of the plant’s blossom.
Avila, Laura, Hall, H Glenn
core   +2 more sources

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