Results 41 to 50 of about 21,307 (268)

Six new species of the genus Eumerus Meigen, 1822 from Iran (Diptera, Syrphidae) [PDF]

open access: yesJournal of Insect Biodiversity and Systematics, 2022
View on Scopus Six new species of the genus Eumerus Meigen, 1822 are here described from Iran. The new species and their four related groups are as follows: E. nadoosheni Gilasian & van Steenis sp. nov. of the Eumerus barbarus group; E.
Ebrahim Gilasian   +2 more
doaj  

Forest management intensity affects aquatic communities in artificial tree holes [PDF]

open access: yes, 2016
Forest management could potentially affect organisms in all forest habitats. However, aquatic communities in water-filled tree-holes may be especially sensitive because of small population sizes, the risk of drought and potential dispersal limitation. We
Gossner, Martin M.   +6 more
core   +4 more sources

Checklist of hover flies (Diptera, Syrphidae) of the Republic of Georgia

open access: yesZooKeys, 2020
A checklist of the Syrphidae species of the Republic of Georgia is presented. New hover fly (Diptera: Syrphidae) records from Georgia are provided as a result of field work conducted in 2018.
X. Mengual   +5 more
semanticscholar   +1 more source

Revision of the Merodon bombiformis group (Diptera: Syrphidae) – rare and endemic African hoverflies

open access: yesEuropean Journal of Taxonomy, 2021
In the present work, the Afrotropical species of the bombiformis species group, part of the aureus lineage, are revised. Six species are recognized, based on a combination of morphological and genetic features.
A. Vujić   +6 more
semanticscholar   +1 more source

Sampling of flower-visiting insects: Poor correspondence between the catches of colour pan-trap and sweep netting

open access: yesEuropean Journal of Entomology, 2019
Pollinating insects are important and therefore, it is important to be able to assess and monitor changes in their abundance. Consequently, it is essential that the methods used to collect data have some level of precision and are accurate.
Hilda-Linn BERGLUND, Per MILBERG
doaj   +1 more source

Countdown to 2010: Can we assess Ireland’s insect species diversity and loss? [PDF]

open access: yes, 2010
peer-reviewedThe insects are the most diverse organisms on this planet and play an essential role in ecosystem functioning, yet we know very little about them.
McCormack, Stephen   +4 more
core   +1 more source

Patterns in diurnal co-occurrence in an assemblage of hoverflies (Diptera: Syrphidae)

open access: yesEuropean Journal of Entomology, 2013
In this study we analyzed the inter-specific relationships in assemblages of syrphids at a site in northern Italy in order to determine whether there are patterns in diurnal co-occurrence. We adopted a null model approach and calculated two co-occurrence
Manuela D'AMEN   +3 more
doaj   +1 more source

Systematics, Ecology and Host Associations of \u3ci\u3eNaiadacarus\u3c/i\u3e (Acari: Acaridae) in the Great Lakes Region [PDF]

open access: yes, 2017
Naiadacarus arboricola Fashing, is reported from adults collected from water-filled treeholes and deutonymphs phoretic on Mallota species, Eristalis bardus and Somula decora (Diptera: Syrphidae) from Michigan, Illinois, and New York. Naiadacarus fashingi,
OConnor, Barry M
core   +2 more sources

Insects Associated with Michigan Bumblebees (\u3ci\u3eBombus\u3c/i\u3e Spp.) [PDF]

open access: yes, 2017
(excerpt) Studies of insect associates of bumblebees are not new. For example, Tuck (1896, 1897) reported over 50 species of insects associated with nests of British bumblebees. Sladen (1912) discussed nest associates and parasites of European bumblebees,
Brown, Thomas M, Husband, Richard W
core   +2 more sources

Flower visitation by hoverflies (Diptera: Syrphidae) in a temperate plant-pollinator network

open access: yesPeerJ, 2018
Hoverflies (Diptera: Syrphidae) are among the most important pollinators, although they attract less attention than bees. They are usually thought to be rather opportunistic flower visitors, although previous studied demonstrated that they show colour ...
J. Klečka   +3 more
semanticscholar   +1 more source

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