Results 61 to 70 of about 22,003 (258)

Bottom–up and top–down diversification: asymmetric processes over space and time

open access: yesOikos, EarlyView.
Coevolution in trophic interactions is often considered as a major factor underlying diversification in interacting species. Most focus hitherto has however been on bottom–up processes where host‐associated differentiation drives diversification, and less on top–down processes through enemy‐associated differentiation.
Peter A. Hambäck, Niklas Janz
wiley   +1 more source

Chalcosicya maya n. sp, a new Mexican species (Coleoptera: Chrysomelidae: Eumoplinae) and its implications for morphology and biogeography [PDF]

open access: yes, 2012
Chalcosicya maya, new species, (Coleoptera: Chrysomelidae: Eumolpinae) is described and the species key of Blake (1951) is modified to accommodate it. This is the first known mainland species of this previously Antillean genus.
Flowers, R. Wills
core   +1 more source

High β‐diversity in fig wasp communities driven by species turnover in widely distributed Neotropical fig trees

open access: yesOikos, EarlyView.
Wasp communities associated with fig trees, Ficus spp., are a model system to investigate how local and regional processes shape biodiversity across large geographical ranges. We investigated the β‐diversity of fig wasp assemblages associated with three widely distributed Neotropical fig species – F. citrifolia, F. obtusifolia and F. pertusa – using 27
Elmecelli Moraes de Castro Souza   +6 more
wiley   +1 more source

Wood wasp inspired space and earth drill [PDF]

open access: yes, 2010
In this chapter, we explain why the low gravity encountered on Mars or on the Moon and the low mass of the probes, landers and rovers that carry drilling devices limit classical drilling techniques.
Coste, Pierre   +3 more
core  

Saltbush-associated Asphondylia species (Diptera: Cecidomyiidae) in the Mediterranean Basin and their chalcidoid parasitoids (Hymenoptera: Chalcidoidea) [PDF]

open access: yes, 2014
Numerous species of gall midges (Diptera: Cecidomyiidae) have been recorded from saltbush (Chenopodiaceae: Atriplex) around the world but only 11 of them belong to the large cecidomyiid genus Asphondylia. Of these, two species were de-scribed in the late
Askew, Richard R.   +2 more
core   +3 more sources

First Records of the Genus Parthenocodrus (Hymenoptera: Proctotrupidae) from Japan and South Korea [PDF]

open access: yesAnimal Systematics, Evolution and Diversity, 2016
Two species of the genus Parthenocodrus Pschorn-Walcher, 1958 (Hymenoptera: Proctotrupidae) are reported: P. elongatus from Japan and South Korea and P. puncticauda from South Korea.
Chang-Jun Kim, Bia Park, Jong-Wook Lee
doaj   +1 more source

Muffled olfactory and sensory cues from the reproductive stage soybean selectively reduce oviposition of a major polyphagous herbivore, fall armyworm (Spodoptera frugiperda)

open access: yesPest Management Science, EarlyView.
Fall armyworm (FAW) preferred ovipositing on vegetative‐stage soybeans. While ‘mother knows best’ may not apply in soybean‐FAW system, muffled cues in the reproductive stage could positively influence host success. Abstract BACKGROUND While the mother knows best/preference performance hypothesis has been well tested in natural ecosystems, how these ...
Krishnarao Gandham   +4 more
wiley   +1 more source

Oviposition behaviour of Gryon gallardoi (Hymenoptera, Scelionidae) on eggs of different ages of Spartocera dentiventris (Hemiptera, Coreidae) Comportamento de oviposição de Gryon gallardoi (Hymenoptera, Scelionidae) sobre ovos de diferentes idades de Spartocera dentiventris (Hemiptera, Coreidae)

open access: yesIheringia: Série Zoologia, 2006
The oviposition behaviour of Gryon gallardoi (Brèthes, 1914) on eggs of Spartocera dentiventris Mendonça Jr. (Berg, 1884) of different ages (2, 3, 4, 5, 6, 7, 8 and 12 days) was investigated.
Luciane da Rocha   +2 more
doaj   +1 more source

Winter fruit contribution to the performance of the invasive fruit fly Drosophila suzukii under different thermal regimes

open access: yesInsect Science, EarlyView.
Highlights: The contribution of winter and early spring‐available fruit (Aucuba japonica, Elaeagnus ×submacrophylla, and Viscum album) to the performance of D. suzukii depended on their P:C ratio and biophysical properties Even though D. suzukii performance was the lowest in A.
Jordy Larges   +9 more
wiley   +1 more source

Aphidiinae (Hymenoptera, Braconidae) aphid parasitoids of Malta : review and key to species [PDF]

open access: yes, 2015
This paper brings an annotated list of the 16 aphid parasitoids detected up to 2015 in Malta. All the species were reared from identified aphid-plant associations. An illustrated key to the identification of the recorded species from Malta is provided.
Mifsud, David   +3 more
core   +1 more source

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