Results 141 to 150 of about 20,747 (314)

Revision of the genus Eutyglossina Cockerell (Apoidea : Colletidae)

Australian Journal of Zoology, 1968
The genus Euryglossina Cockerell, 1910, is revised. Fifty species are recognized including the following 27 species described as new : E. kellyi, E. stygica, E. healesvillensis, E. douglasi, E. lobiocula, E. gigantocephala, E. nigra, E. atra, E. glenmorganensis, E. bowenensis, E. townsvillensis, E. pulchra, E. polita, E. grandigena, E. angulifacies,
openaire   +3 more sources

Ecological impact and population status of non-native bees in a Brazilian urban environment

Revista Brasileira de Entomologia
The introduction of species is an important global threat to native ecosystems and yet little is known about invasion risks of non-native bees. Moreover, urbanization is increasing rapidly around the world with impact on the bee fauna.
Letícia Vanessa Graf, Rafael Dudeque Zenni, Rodrigo Barbosa Gonçalves   +2 more
doaj   +1 more source

Range expansion of the Asian native giant resin bee Megachile sculpturalis (Hymenoptera, Apoidea, Megachilidae) in France

Ecology and Evolution, 2018
In 2008, a new species for the French bee fauna was recorded in Allauch near Marseille: the giant resin bee, Megachile sculpturalis (Smith, 1853). This was the first European record of this species that is native to East Asia. To our knowledge, it is the
Violette Le Féon, M. Aubert, D. Genoud, Valérie Andrieu‐Ponel, P. Westrich, B. Geslin   +5 more
semanticscholar   +1 more source

Sex-biased parental care and sexual size dimorphism in a provisioning arthropod [PDF]

, 2015
The diverse selection pressures driving the evolution of sexual size dimorphism (SSD) have long been debated. While the balance between fecundity selection and sexual selection has received much attention, explanations based on sex-specific ecology have ...
A Herrel, AJS Weaving, AJS Weaving, AJS Weaving, AK Chippendale, AV Hedrick, B Hurlbutt, CH Hicks, CR Pavey, DJ Fairbairn, DJ Fairbairn, DJ Fairbairn, E Paradis, E Petersson, E Ranta, EJ Temeles, FD Parker, FE Kurczewski, G Halffter, G Head, G Shreeves, Gavin Shreeves, GB Monteith, GP Baerends, H Dollfuss, H Weimerskirch, HE Evans, HE Evans, HE Evans, HE Hinton, J Field, J Field, J Field, J Field, J Field, J Field, J Hunt, J Tormos, JA Powell, JA Rosenheim, JA Rosenheim, James D. J. Gilbert, JC Costa, JDJ Gilbert, JDJ Gilbert, Jeremy Field, JF Berry, JH Marden, JJ Gilbert, JR Coelho, JR Lighton, K Ralls, KM O’Neill, KM O’Neill, M Andersson, M Blösch, M Goubault, Martyn Kennedy, ME Favila, MF O’Brien, MS Iglesias, O Krüger, O Lomholdt, P Lindenfors, P Myers, P Wheeler, PB Edwards, PR Stephens, R Lande, R Shine, R Tornberg, RC Castillo del, RC Stillwell, RF Preziosi, RM Bohart, RM Cox, S Nylin, SC Stearns, SD Gaimari, Selina Brace, ST Trumbo, TE Reimchen, TH Clutton-Brock, VL Kazenas, W Groot De, WU Blanckenhorn, WU Blanckenhorn, X Han   +87 more
core   +1 more source

NOTAS BIOLÓGICAS Y TAXONÓMICAS SOBRE LOS ABEJORROS DEL MARACUYÁ DEL GÉNERO Xylocopa (HYMENOPTERA: APIDAE, XYLOCOPINI) EN COLOMBIA

Acta Biológica Colombiana, 2009
RESUMEN Presentamos información sobre los hábitos de nidificación de la abeja carpintera Xylocopa (Neoxylocopa) lachnea en la cordillera Oriental de Colombia.
MARGARITA GONZALES, YURANNY CUELLAR
doaj  

Floral phenology, floral rewards and insect visitation in an ornamental species Geranium platypetalum Fisch. and C. A. Mey., Geraniaceae

Acta Agrobotanica, 2012
This 4-year study examined the flowering pattern, floral display, nectar and pollen production as well as insect visitation to a perennial Geranium platypetalum Fisch. and C. A. Mey. G. platypetalum bloomed from the end of May until the end of June.
Marzena Masierowska
doaj   +1 more source

Native bees (Hymenoptera: Apoidea) and berry polycultures: Studying farmers’ motivations for diversification and the impact of mass floral resources on pollinator communities [PDF]

, 2017
Floral resource continuity is an important component in pollinator conservation. Mass blooms early in the season may bolster pollinator communities on sequentially flowering crops by creating a resource pulse in an agricultural landscape.
Hayes, Jen
core   +1 more source

Integrative taxonomy resuscitates two species in the Lasioglossum villosulum complex (Kirby, 1802) (Hymenoptera: Apoidea: Halictidae)

European Journal of Taxonomy, 2019
Morphological and allozyme analyses suggested the occurrence of a pseudocryptic species in the Lasioglossum villosulum (Kirby, 1802) species complex (Hymenoptera: Halictidae).
A. Pauly, Grégoire Noël, G. Sonet, D. Notton, J. Boevé   +4 more
semanticscholar   +1 more source

Systematic and biological studies of the family Andrenidae of Japan (Hymenoptera, Apoidea). Part 2. Systematics, 1 [PDF]

, 1962
Yoshihiro Hirashima
openalex   +1 more source

Revision of the genus Brachyhesma Michener (Apoidea : Colletidae)

Australian Journal of Zoology, 1968
The genus Brachyhesma Michener, 1965, is revised. Seventeen species are recognized including the following 11 species described as new: B. bitrichopedalis, B. cavagnari, B. healesvillensis, B. josephinae, B. macdonaldensis, B. rossi, B, barrowensis, B. dedari, B. longicornis, B. renneri, B. wyndhami. All species have been redescribed.
openaire   +4 more sources