Results 21 to 30 of about 96,401 (352)

Allozyme variation and sociogenetic structure of Polistes satan Bequaert 1940 colonies (Hymenoptera, Vespidae)

open access: yesGenetics and Molecular Biology, 2007
We collected 40 colonies of the wasp Polistes satan in November 1993 (Population A = 23 colonies) and October 1995 (Population B = 17 colonies) from the town of Delfinopólis in the Brazilian state of Minas Gerais.
Jane Cristina Wehren Gaspar   +2 more
doaj   +1 more source

Investigations into stability in the fig/ fig-wasp mutualism [PDF]

open access: yes, 2010
Fig trees (Ficus, Moraceae) and their pollinating wasps (Chalcidoidea, Agaonidae) are involved in an obligate mutualism where each partner relies on the other in order to reproduce: the pollinating fig wasps are a fig tree’s only pollen disperser ...
Al-Beidh, Sarah, Al-Beidh, Sarah
core   +1 more source

Nestmate Recognition in Social Insects: What Does It Mean to Be Chemically Insignificant?

open access: yesFrontiers in Ecology and Evolution, 2020
Social insects use the blend of hydrocarbons present on their cuticle to efficiently distinguish nestmates from aliens. Intruders must therefore find a strategy to break the recognition code in order to exploit the colony resources. Twenty years ago, the
Maria Cristina Lorenzi   +2 more
doaj   +1 more source

Spatio‐temporal shifts in British wild bees in response to changing climate

open access: yesEcology and Evolution, 2023
Climate plays a major role in determining where species occur, and when they are active throughout the year. In the face of a changing climate, many species are shifting their ranges poleward.
Chris Wyver   +4 more
doaj   +1 more source

Wasps (Crabronidae, Sphecidae, Scoliidae, and Pompilidae) of Rivne Nature Reserve and their trophic relationships with angiosperms

open access: yesБіологічні студії, 2023
Background. The article presents data obtained as a result of our research on the territory of Rivne Nature Reserve during 2018–2022. We collected 118 individuals belon­ging to 43 species, 19 genera from the Crabronidae, Sphecidae, Scoliidae, and ...
Sophia Pytel-Huta
doaj   +1 more source

Deep mtDNA divergences indicate cryptic species in a fig-pollinating wasp [PDF]

open access: yes, 2006
Background: Figs and fig-pollinating wasps are obligate mutualists that have coevolved for ca 90 million years. They have radiated together, but do not show strict cospeciation.
Cook, J.M., Haine, E.R., Martin, J.
core   +1 more source

Samurai Wasp Trissolcus japonicus (Ashmead) (Insecta: Hymenoptera: Scelionidae: Telenominae)­

open access: yesEDIS, 2017
Includes: Introduction - Distribution - Description and Life Cycle - Hosts - Selected References Also published on the Featured Creatures website at http://entnemdept.ufl.edu/creatures/beneficial/wasps/Trissolcus_japonicus ...
Anita S. Neal
doaj   +5 more sources

Reproductive aspects of the Purple-throated Euphonia, Euphonia chlorotica (Aves: Fringillidae) in southeastern Brazil, and first record of the species nesting inside a vespiary

open access: yesZoologia (Curitiba), 2017
Despite the fact that E. chlorotica (Linnaeus, 1766) is common and widely distributed in South America, the reproductive aspects of the species are poorly documented. Here we present data on 18 active nests found from August to February, between 2007 and
Daniel F. Perrella   +4 more
doaj   +1 more source

No Intersexual Differences in Host Size and Species Usage in \u3ci\u3eSpalangia Endius\u3c/i\u3e (Hymenoptera: Pteromalidae) [PDF]

open access: yes, 2017
Spalangia endius were collected from fly pupae, primarily house fly and stable fly, from a poultry house in Indiana. Male and female wasps did not differ within and across host species in host size usage.
King, B. H
core   +2 more sources

Rossiter-McLaughlin effect measurements for WASP-16, WASP-25 and WASP-31★ [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2012
We present new measurements of the Rossiter-McLaughlin (RM) effect for three WASP planetary systems, WASP-16, WASP-25 and WASP-31, from a combined analysis of their complete sets of photometric and spectroscopic data. We find a low amplitude RM effect for WASP-16 (Teff = 5700 \pm 150K), suggesting that the star is a slow rotator and thus of an advanced
Pierre F. L. Maxted   +17 more
openaire   +6 more sources

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