Results 91 to 100 of about 2,468 (195)

Historical and recent investigations on the bee fauna of Taiwan (Hymenoptera, Apoidea) [PDF]

open access: yes, 2008
The bee fauna of Taiwan was studied intensively in the first half of last century and was based in large parts on the extensive material collected by Hans Sauter between 1902 and 1914. Subsequent studies on bees of Taiwan have only been sporadic.
Dubitzky, Andreas   +2 more
core  

Species status and new distribution records for Lithurgus huberi Ducke (Hymenoptera, Megachilidae, Lithurginae) [PDF]

open access: yes, 2013
Notes are provided on the morphology of males and females of the enigmatic Lithurgus huberi Ducke (Lithurginae: Lithurgini), a species historically believed to have been introduced into South America from Asia and to be a possible synonym of the more ...
Alvarez, Leopoldo Jesús   +3 more
core   +3 more sources

Pollination ecology and floral visitor spectrum of turtlehead (Chelone glabra L.; Plantaginaceae)

open access: yesJournal of Pollination Ecology, 2015
Many flowering plants engage in mutualistic interactions with animals in order to sexually reproduce, exchanging food rewards such as nectar and pollen for the service of pollen transfer between flowers.
Leif L. Richardson, Rebecca E. Irwin
doaj   +1 more source

Rote Liste der Bienen Baden-Württembergs [PDF]

open access: yes, 2009
In der jüngsten Vergangenheit hat die Anwendung der inzwischen veralteten Liste zunehmend Probleme bereitet und zwar nicht nur im Zusammenhang mit der Begründung von Naturschutzmaßnahmen, sondern auch bei Bewertungen von Flächen z.B.
Herrmann, Mike   +6 more
core  

Unveiling the trap-nesting bees and wasps’ fauna (Hymenoptera: Apocrita) and associated organisms of the Jardim Botânico do Rio de Janeiro, Brazil [PDF]

open access: yesPapéis Avulsos de Zoologia
Urban areas, as cities, are frequently overlooked as refuges for the native fauna. However, these places may support several species and house relevant biodiversity contributing to important ecosystemic functions.
Diego Marinho, Felipe Vivallo
doaj   +2 more sources

Géneros de Hymenoptera asociados al cultivo de maíz (Zea mays) durante la etapa de floración

open access: yesAIA Avances en Investigación Agropecuaria
Introducción. Hymenoptera juega un papel fundamental en los procesos ecológicos en el cultivo del maíz. El polen del maíz es usado por una amplia diversidad de himenópteros como fuente de proteína.
Selmy Adriana Ayala-Tzab   +4 more
doaj   +1 more source

Laudatio für Herrn Prof. Dr. Holger H. Dathe anlässlich der Verleihung der Meigen-Medaille 2005 der Deutschen Gesellschaft für allgemeine und angewandte Entomologie am 23. März 2005 in Dresden [PDF]

open access: yes, 2008
Wir ehren in HOLGER DATHE einen ungewöhnlich vielseitigen Wissenschaftler. Er arbeitete als Wild- und Zootierbiologe, Ornithologe und Ethologe über Biophysik und Physiologie des Vogelfluges, hormonelle Verhaltensregulation und Verhaltensbiologie der ...
Klausnitzer, Bernhard
core  

Habitat-Dependency of Transect Walk and Pan Trap Methods for Bee Sampling in Farmlands

open access: yesJournal of Apicultural Science, 2019
Bees are the most important group of flower visitors providing an essential ecosystem service, namely pollination. Due to the worldwide decline of bees, there should be standardized sampling methods in place to ensure consistent and comparable results ...
Templ Barbara   +6 more
doaj   +1 more source

An update on the wild bee fauna (Hymenoptera, Apoidea, Anthophila) of Serbia [PDF]

open access: yesJournal of Hymenoptera Research
Numerous wild bee (Hymenoptera, Apoidea, Anthophila) species show negative population trends, while the knowledge gaps on their occurrences and distributions prevent adequate conservation actions.
Sonja Mudri-Stojnić   +6 more
doaj   +3 more sources

Las abejas de Porce familia colletidae (hymenoptera: apoidea) notas y claves para los géneros presentes en la zona de influencia del embalse Porce ii.

open access: yesRevista Facultad Nacional de Agronomía Medellín, 1999
Se presentan claves taxonómicas a nivel de género para la identificación de las abejas colletidas de la zona de Influencia del Embalse Porce II (Porce, Antioquía, Colombia S.A).
Smith Pardo Allan H.
doaj  

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