Results 31 to 40 of about 662 (149)

The Effects of Crop Type and Production Systems on the Activity of Beneficial Invertebrates [PDF]

open access: yes, 2007
Beneficial invertebrate activity (13 groups) was assessed in five crop types on a split-plot experimental system in northern England using pitfall trapping and suction sampling in May-October 2005.
Eyre, M.D.   +3 more
core  

The wasps, bees and ants (Insecta: Vespida=Hymenoptera) from the Insect Limestone (Late Eocene) of the Isle of Wight, UK [PDF]

open access: yes, 2014
The types and undescribed material of the hymenopteran fossils of the Insect Bed of the Bembridge Marls from the Isle of Wight (UK) are critically revised and studied. A total of 1460 fossils are recorded and attributed to 20 families: Gasteruptiidae s.l.
Antropov, AV   +8 more
core   +1 more source

Fifty years of monitoring changes in the abundance of invertebrates in the cereal ecosystem of the Sussex Downs, England

open access: yesInsect Conservation and Diversity, Volume 17, Issue 5, Page 758-787, September 2024.
Monitoring invertebrates in cereal fields in southern England over 50 years (1970–2019) showed an overall decline in abundance. For taxa at the order/family level, 47% declined in abundance, 16% increased and 37% showed no change. Most functional groups declined, expect for pollinators—whose abundance did not change overall.
J. A. Ewald   +5 more
wiley   +1 more source

Fenología anual y actividad nictemeral de los Hymenoptera (Insecta) en un bosque mixto mediterráneo [PDF]

open access: yes, 2012
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   +1 more source

Soil Traversing Arthropod Populations as Sampled by Pitfall Traps in Sunflower and Three Adjacent Habitats in Northeast Arkansas [PDF]

open access: yes, 1982
Soil traversing arthropod populations were sampled by pitfall traps in sunflower (Helianthus spp.) and three adjacent habitats during the months of July, August and September of 1980 and May, June, July and August of 1981.
Barton, Harvey E., Lee, Linda A.
core   +2 more sources

Two New Genera of Diapriinae (Diapriidae, Hymenoptera) With Transantarctic Relationships

open access: yes, 1969
Psyche: A Journal of Entomology, Volume 76, Issue 3, Page 311-325, 1969.
Lubomir Masner
wiley   +1 more source

First record of the genus and species Phaneroserphus punctibasis Townes, 1981 (Hymenoptera: Proctotrupidae) from Iran

open access: yesJournal of Crop Protection, 2015
The genus Phaneroserphus Pschorn–Walcher, 1958 is recorded for the first time from Iran and its allied species, Phaneroserphus punctibasis Townes, 1981 is recorded from West Palaearctic region for the first time.
Mohammad Izadizadeh   +3 more
doaj  

The Types of Proctotrupoidea Hymenoptera) in the Charles T. Brues Collection at the Museum of Comparative Zoology

open access: yes, 1965
Psyche: A Journal of Entomology, Volume 72, Issue 4, Page 295-304, 1965.
Lubomir Masner
wiley   +1 more source

Diversidade de artrópodes terrestres em dois tipos de culturas frutícolas na ilha Terceira, Açores: os predadores generalistas e himenópteros parasitóides (Hymenoptera, Parasitica) [PDF]

open access: yes, 2009
I Congresso de Fruticultura e Viticultura. Angra do Heroísmo 17-19 Abril 2008.Trabalho de investigação desenvolvido no projecto INTERFRUTA II, financiado pelo programa INTERREG III-B."[…].
Borges, Paulo A. V., Moniz, João
core  

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