Results 211 to 220 of about 9,652 (252)

The ecology of predatory hoverflies as ecosystem-service providers in agricultural systems

, 2020
The main contemporary challenge for agriculture is to meet the food demands of the increasing world population while becoming more environmentally sustainable. One way to achieve this is through the promotion of functional biodiversity and the ecosystem (
Neus Rodríguez-Gasol, G. Alins, E. Veronesi, S. Wratten   +3 more
semanticscholar   +1 more source

AUTOMATIC HOVERFLY SPECIES DISCRIMINATION

Proceedings of the 1st International Conference on Pattern Recognition Applications and Methods, 2012
An novel approach to automatic hoverfly species discrimination based on detection and extraction of vein junctions in wing venation patterns of insects is presented in the paper. The dataset used in our experiments consists of high resolution microscopic wing images of several hoverfly species collected over a relatively long period of time at ...
Brkljač, Branko, Panić, Marko, Ćulibrk, Dubravko, Crnojević, Vladimir, Ačanski, Jelena, Vujić, Ante   +5 more
openaire   +2 more sources

Drastic acceleration of the extinction rate of hoverflies (Diptera: Syrphidae) in the Netherlands in recent decades, contrary to wild bees (Hymenoptera: Anthophila)

Journaal van Syrphidae
The averaged yearly rate of extinction of hoverfly species (Diptera: Syrphidae) in the Netherlands is shown to be variable over time: over the period 1993–2017, it is nearly five times higher than over the period 1942–1992.
Theo Zeegers, Wouter van Steenis, M. Reemer, John Smit   +3 more
semanticscholar   +1 more source

Hoverfly mimicry deceives humans

Journal of Zoology, 2005
AbstractIt is believed that the resemblance of many hoverflies to stinging hymenopterans is a case of Batesian mimicry, though there is little experimental evidence that it is effective in protecting them from predators. In this study the effectiveness of hoverfly mimicry was investigated for humans by presenting groups of university students and ...
Golding, Yvonne, Ennos, Roland, Sullivan, Matthew, Edmunds, Malcolm   +3 more
openaire   +2 more sources

How hoverflies compute interception courses

Journal of Comparative Physiology ? A, 1978
1. Males of many species of hoverfly hover in one spot ready to pursue passing objects, presumably in order to catch a mate. We have filmed two of the larger species as they begin their pursuit of an approaching projectile shot at them from a peashooter.
T. S. Collett, M. F. Land
openaire   +1 more source

Are all urban green spaces a favourable habitat for pollinator communities? Bees, butterflies and hoverflies in different urban green areas

Ecological Entomology, 2019
1. Urban ecosystems create suitable habitats for many plant and animal species, including pollinators. However, heterogenic habitats in city centres and suburban areas have various effects on pollinators due to variations in the composition of vegetation
Ł. Dylewski, Ł. Maćkowiak, Weronika Banaszak‐Cibicka   +2 more
semanticscholar   +1 more source

The Hoverfly Body

2004
A hoverfly's body consists of head, thorax and abdomen. This chapter provides descriptions and names for the main structural features associated with these body parts. Much of the head is occupied by the compound eyes, which are usually brownish or reddish in colour.
openaire   +1 more source

Pollinators on the edge: our European hoverflies. The European red list of hoverflies

2023
This European Red List provides a summary of the conservation status of the European species of hoverflies (Diptera: Syrphidae), evaluated according to the IUCN Red List Categories and Criteria (2012a) and IUCN’s global (IUCN Standards and Petitions Committee, 2022) and regional (IUCN, 2012b) guidelines. It provides the first comprehensive, region-wide
Vujić, Ante, Gilbert, Francis, Flinn, G., Englefield, E., Varga, Z., Ferreira, C.C., Eggert, F., Woolcock, S., Böhm, M., Mergy, R., Ssymank, Axel, van Steenis, Wouter, Aracil, Andrea, Földesi, Rita, Grković, Ana, Mazanek, Libor, Nedeljković, Zorica, Pennards, Gerard, Pérez-Bañón, Celeste, Radenković, Snezana, Ricarte, Antonio, Rojo, Santos, Ståhls, Gunilla, van der Ent, Leendert-Jan, van Steenis, Jeroen, Barkalov, A., Campoy, Andrés, Janković Milosavljević, Marina, Likov, Laura, Lillo, María Inés, Mengual Sanchis, Ximo, Milić, Dubravka, Miličić, Marija, Nielsen, Tore R., Popov, Grigory, Romig, T., Šebić, Anja, Speight, Martin C.D., Tot, Tamara, van Eck, André, Veselić, Sanja, Andrić, Andrijana, Bowles, P., De Groot, M., Marcos-García, M. Ángeles, Hadrava, J., Lair, Xavier, Malidžan, S., Nève, G., Obreht-Vidaković, Dragana, Popov, Snežana, Smit, Jan, Van De Meutter, F., Veličković, Nevena   +53 more
openaire   +1 more source

Flower visiting by hoverflies (Syrphidae)

Journal of Biological Education, 1980
An account is given of a study of resource-partitioning in hoverflies (Syrphidae) which feed almost exclusively on flowers. Suggestions are made for school project work using hoverflies.
openaire   +1 more source

Hoverflies

Biological Conservation, 1987
openaire   +1 more source