Results 61 to 70 of about 140,942 (252)

Solving the trophic puzzle: Host–parasite associations in Neotropical fig wasps associated with fig trees of section Americanae

open access: yesEcological Entomology, EarlyView.
We determined the trophic associations among fig wasp species associated with Ficus citrifolia by integrating gall morphology, the temporal sequence of wasp colonization, and oviposition behaviour. Dissection of galls produced by four gall‐inducing species at a late developmental phase enabled direct identification of occupants and inference of host ...
Leví Oliveira Barros   +2 more
wiley   +1 more source

Infestation of poppy cultures with the poppy stem gall wasp (Timaspis papaveris) Cynipidae: Hymenoptera

open access: yesPlant Protection Science, 2005
The mortality of pupae in stems lying on the ground during hibernation was 51.7% in 2003. The emergence of adults in 2003 and 2004 was monitored from late April to early July by photoeclectors placed on fields that grew poppy the previous year.
Josef Šedivý, Pavel Cihlař
doaj   +1 more source

Non-pollinator fig wasp impact on the reproductive success of an invasive fig tree: why so little? [PDF]

open access: yes, 2016
Classical biological control agents fail to achieve an impact on their hosts for a variety of reasons and an understanding of why they fail can help shape decisions on subsequent releases.
Beardsley J. W.   +19 more
core   +2 more sources

Pathogenic fungus Ustilago maydis exploits the lateral root regulators to induce pluripotency in maize shoots

open access: yesNew Phytologist, EarlyView.
Summary Biotrophic plant–pathogens secrete effector molecules to redirect and exploit endogenous signaling and developmental pathways in their favor. The biotrophic fungus Ustilago maydis causes galls on all aerial parts of maize. However, the responsible gall‐inducing effectors and corresponding plant signaling pathway(s) remain largely unknown. Using
Mamoona Khan   +7 more
wiley   +1 more source

Preservation of sweet chestnut genetic resources (Castanea sativa Mill.) against attack by chestnut gall wasp (Dryocosmus kuriphilus Yasumatsu, 1951)

open access: yesActa Agriculturae Slovenica, 2018
European sweet chestnut (Castanea sativa Mill.) is one of the most important wood species due to its environmental and economic role in many agro-forestry systems. Chestnut gall wasp (Dryocosmus kuriphilus Yasumatsu, 1951) is currently the most dangerous
Rebecca VOLLMEIER   +2 more
doaj   +1 more source

Coevolution and Functional Effects of Endosymbiotic Rickettsia in Leptocybe invasa Fisher & LaSalle (Hymenoptera: Eulophidae) Across China

open access: yesEcology and Evolution, Volume 16, Issue 2, February 2026.
Two distinct lineages of L. invasa and the dominant endosymbiont, Rickettsia, was identified, followed by an analysis of its infection density across various developmental stages and tissues of L. invasa. Furthermore, two distinct strains of the Rickettsia endosymbiont were detected, and the phylogenetic relationships between these strains and their L.
Xiu Xu   +5 more
wiley   +1 more source

Leptocybe invasa Fisher & La Salle, 2004 and Ophelimus maskelli Haliday, 1844 - two new records of gall forming Eulophidae from Malta (Hymenoptera, Chalcidoidea) [PDF]

open access: yes, 2012
The Eulophidae (Hymenoptera, Chalcidoidea) currently accommodates more than 4,000 described species worldwide in some 300 genera (noyES, 2003). In Europe, the family is represented by about 1,100 species (GAuld & Bolton, 1988).
Mifsud, David
core  

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

open access: yesOikos, Volume 2026, Issue 2, February 2026.
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

FIRST RECORD IN ITALY OF PSYLLAEPHAGUS BLITEUS RIEK (Hymenoptera Encyrtidae) PARASITOID OF GLYCASPIS BRIMBLECOMBEI MOORE (Hemiptera Psyllidae) [PDF]

open access: yes, 2011
Psyllaephagus bliteus Riek (Hymenoptera Encyrtidae), parasitoid of the red gum lerp psyllid Glycaspis brimblecombei Moore (Hemiptera Psyllidae), has been recorded for the first time in Italy in September 2011. The arrival of P.
Caleca, Virgilio   +2 more
core  

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

open access: yesOikos, Volume 2026, Issue 1, January 2026.
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

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