Results 81 to 90 of about 4,521,295 (246)

No concordant phylogeographies of the rose gall wasp Diplolepis rosae (Hymenoptera, Cynipidae) and two associated parasitoids across Europe.

PLoS ONE, 2012
According to the Host-tracking Hypothesis, species of higher trophic levels with a close relationship to their hosts, such as parasites or parasitoids, are expected to show spatio-temporal phylogeographic patterns similar to those of their host ...
Annette Kohnen, Iris Richter, Roland Brandl   +2 more
doaj   +1 more source

Iflaviruses in arthropods: when small is mighty

Insect Science, EarlyView.
Many arthropod species harbor iflaviruses, which often cause covert (asymptomatic) infections, but may still affect host fitness. We review the impact of iflaviruses on arthropod fitness, immunity, behaviour as well as the iflavirus’ host range, transmission, tissue tropism and the interactions with other microorganisms within arthropods.
Annamaria Mattia, Hannah‐Isadora Huditz, Monique M. van Oers, Vera I.D. Ros   +3 more
wiley   +1 more source

SURVEILLANCE STUDIES ON SOME PARASITOIDS ATTACKING THE SOFT SCALE INSECT, Pulvinaria psidii MASK INFESTING GUAVA TREES. [PDF]

Journal of Plant Protection and Pathology, 2005
The present experiments were earned out in the farm of Agriculturat Research Center. Faculty of Agriculture. Mansoura University on guava trees during the two successive years 2001 and 2002 at Mansoura district.
Hala EI-Serafi
doaj   +1 more source

Offspring Defensive Investment Covaries With Brood Value in a Female Cobweb Spider

Integrative Zoology, EarlyView.
We performed a thorough field investigation on the web architectures of Campanicola campanulata to research its cobweb architecture variation under the condition of whether it carried egg sacs, in order to test the theory of its brood value. Our results demonstrate that retreat construction in female cobweb spiders is modulated by brood value.
Haixin Zhang, Jie Liu, Changchun Li, Lelei Wen, Lang Hu, Fan Zhang, Kai Wang, Shichang Zhang   +7 more
wiley   +1 more source

Revenge of the host: Cannibalism, ontogenetic niche shifts, and the evolution of life-history strategies in host-parasitoid systems [PDF]

, 2012
Question: How does cannibalism in the host alter the evolution of a parasitoid’s oviposition strategy? Can differences in cannibalism risk between parasitized vs. healthy hosts alter the stage foraging of parasitoids?
Rudolf, Volker H.W., Sorrell, Ian, Pedersen, Amy   +2 more
core  

The dual crisis: Climate change simultaneously drives pollinator decline and pest outbreaks

Agricultural and Forest Entomology, EarlyView.
Climate change acts as an asymmetric ecological filter, favouring r‐selected pest traits (rapid reproduction, generalism) while disadvantaging K‐selected pollinators. For every 1°C of warming, bee species richness declines ~25% since the 1990s, while pest‐induced crop losses increase by 10%–25%. A network‐centric approach integrating climate‐responsive
Diriba Fufa Serdo
wiley   +1 more source

Larval parasitism of the autumnal moth reduces feeding intensity on the mountain birch [PDF]

, 2013
Plants respond to grazing by herbivorous insects by emitting a range of volatile organic compounds, which attract parasitoids to their insect hosts. However, a positive outcome for the host plant is a necessary precondition for making the attraction ...
Klemola, Netta, Ammunét, Tea, Klemola, Tero, Heisswolf, Annette   +3 more
core  

Where are they now? Establishment and impact reports of bark beetle biocontrol agents with a case study of introduced parasitoids from Southeast Queensland, Australia

Agricultural and Forest Entomology, EarlyView.
Twenty‐four bark beetle biocontrol programmes involving 41 natural enemy introductions are reported globally. A total of 36.6% of agents were established and 9.8% were reported effective, while many agent establishments and impacts often remained unassessed and incomparable across regions.
Praneet Goundar, Simon A. Lawson, R. Andrew Hayes, Michael Ramsden, M. Lukas Seehausen, Madaline Healey   +5 more
wiley   +1 more source

Unravelling mummies: cryptic diversity, host specificity, trophic and coevolutionary interactions in psyllid – parasitoid food webs

BMC Evolutionary Biology, 2017
Background Parasitoids are hyperdiverse and can contain morphologically and functionally cryptic species, making them challenging to study. Parasitoid speciation can arise from specialisation on niches or diverging hosts. However, which process dominates
Aidan A. G. Hall, Martin J. Steinbauer, Gary S. Taylor, Scott N. Johnson, James M. Cook, Markus Riegler   +5 more
doaj   +1 more source

Biology, ecology and dynamics of Deborrea malgassa (Heylarts 1884) (Lepidoptera: Psychidae), the main threat to apple Malus domestica Borkh growing in Madagascar

Agricultural and Forest Entomology, EarlyView.
Bioecology parameters of the endemic Psychidae Deborrea malgassa, the main pest of apple trees in Madagascar. Spatiotemporal dynamics of Deborrea malgassa, with a peak infestation between May and August. Proposed targeted prophylaxis techniques associated with other agroecological principles will be key to reducing the vulnerability of apple orchards ...
Miora Ranaivozandriny, Henriette Rasolofoarivao, Santatra Ravelomanantsoa, Bruno Rasmussen, Bertrand Muller, Lala Harivelo Raveloson Ravaomanarivo, Hélène Delatte   +6 more
wiley   +1 more source