Results 71 to 80 of about 594 (133)

Is the alpine divide becoming more permeable to biological invasions? - Insights on the invasion and establishment of the Walnut Husk Fly, Rhagoletis completa (Diptera: Tephritidae) in Switzerland [PDF]

open access: yes, 2017
The Walnut Husk Fly, Rhagoletis completa Cresson (Diptera: Tephritidae), is native to North America (Midwestern US and north-eastern Mexico) and has invaded several European countries in the past decades by likely crossing the alpine divide separating ...
Aluja, M.   +6 more
core  

Annual phenology and nictemeral activity of the Hymenoptera (Insecta) in a Mediterranean mixed forest [PDF]

open access: yes
El Parque de Collserola es un espacio natural adyacente a la ciudad de Barcelona que recientemente ha sido declarado Parque Natural. El presente estudio se centra en las familias de Hymenoptera muestreadas en un bosque mixto mediterráneo de Pinus-Quercus.
Mata-Casanova, Noel   +2 more
core  

Drosofilídeos e seus himenópteros parasitoides em Coffea arabica L. [PDF]

open access: yes, 2009
The objective of this study was to evaluate the occurrence of Drosophilidae and their parasitoids in coffee fruits in Cravinhos, SP, Brazil. The fruits were collected directly from the tree, and a portion was exposed under the canopy.
Fernandes, Daniell Rodrigo Rodrigues   +2 more
core   +1 more source

Afrotropical cynipoidea (hymenoptera). [PDF]

open access: yesZookeys, 2015
van Noort S, Buffington ML, Forshage M.
europepmc   +1 more source

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