Results 41 to 50 of about 410 (150)

Diploid males support a two-step mechanism of endosymbiont-induced thelytoky in a parasitoid wasp [PDF]

BMC Evolutionary Biology, 2015
Haplodiploidy, where females develop from diploid, fertilized eggs and males from haploid, unfertilized eggs, is abundant in some insect lineages. Some species in these lineages reproduce by thelytoky that is caused by infection with endosymbionts: infected females lay haploid eggs that undergo diploidization and develop into females, while males are ...
Ma, W.J., Pannebakker, B.A., van de Zande, L., Schwander, T., Wertheim, B., Beukeboom, L.W.   +5 more
openaire   +7 more sources

Impact of Host and Food Availability on Life‐History Traits in Six Egg Parasitoid Species of the Genus Trichogramma

Entomologia Experimentalis et Applicata, Volume 174, Issue 8, Page 887-895, August 2026.
In this study we measured the impact of access to sugar and hosts on the longevity and fecundity of six Trichogramma species: T. cacoeciae, T. chilonis, T. minutum, T. leptoparameron, T. pintoi and T. sibericum. The impact of food differed among species, but there was a general tendency of increased life expectancy and potential fecundity with sugar ...
Véronique Martel, Marlène Goubault, Guy Boivin   +2 more
wiley   +1 more source

Molecular identification of Trichogramma egg parasitoids of Ostrinia nubilalis in northeastern Serbia [PDF]

Archives of Biological Sciences, 2018
The European corn borer Ostrinia nubilalis (Hubner, 1796) (Lepidoptera: Pyralidae) is a major pest of corn (Zea mays Linnaeus, 1753) in Serbia. Regular monitoring of O.
Ivezić Aleksandar, Rugman-Jones Paul, Stouthamer Richard, Ignjatović-Ćupina Aleksandra   +3 more
doaj   +1 more source

Potential of the Predatory Mites Gamasellodes lavafesii (Mesostigmata: Ascidae) and Cosmolaelaps mediocuspis (Mesostigmata: Laelapidae) on Different Soil Pests/Parasites and Alternative Prey for Large‐Scale Rearing

Journal of Applied Entomology, Volume 150, Issue 5, Page 562-572, June 2026.
ABSTRACT Many species of Mesostigmata soil mites have potential as biological control agents of pests/parasites. This study evaluated the predation potential of two of these species, Gamasellodes lavafesii (Ascidae) and Cosmolaelaps mediocuspis (Laelapidae).
A. R. A. Barros, J. P. I. Martin, G. J. Moraes, M. M. Inomoto, R. C. Castilho   +4 more
wiley   +1 more source

Cytogenetics of a parthenogenetic Arctic species of Micropsectra (Diptera, Chironomidae)

Comparative Cytogenetics, 2011
Micropsectra sedna (Oliver, 1976) is a parthenogenetic midge from the Canadian Arctic. The parthenogenetic mechanism is apomictic thelytoky, with a restitutional division during oogenesis, as found in other parthenogenetic Chironomidae.
David Porter, Jon Martin
doaj   +1 more source

Heating up parasitoid–host interactions: High temperature increased mortality of late‐instar braconid larvae and reduced ladybird recovery rate

Functional Ecology, Volume 40, Issue 4, Page 773-785, April 2026.
Read the free Plain Language Summary for this article on the Journal blog. Abstract With ongoing climate change, temperature‐dependent outcomes of host–parasitoid interactions can affect ecosystem functioning and key ecosystem services such as biological control. However, most studies addressing the impacts of temperature on host–parasitoid systems are
Florencia Baudino, Barbora Žabová, Michal Řeřicha, Michal Knapp   +3 more
wiley   +1 more source

Potential Drivers of Successful Biocontrol: A Perspective on Parasitoids

New Zealand Journal of Zoology, Volume 53, Issue 1, March 2026.
Parasitoids are central to classical biological control, yet predicting their long‐term effectiveness post release remains challenging. In Aotearoa New Zealand, three Microctonus (Hymenoptera: Braconidae) species have been used against pest weevils, but key aspects of their biology remain poorly understood.
Meeran Hussain, Elahe Parvizi, Mark R. McNeill, Ang McGaughran   +3 more
wiley   +1 more source

Parthenogenetic vs. sexual reproduction in oribatid mite communities

Ecology and Evolution, 2019
The dominance of sex in Metazoa is enigmatic. Sexual species allocate resources to the production of males, while potentially facing negative effects such as the loss of well‐adapted genotypes due to recombination, and exposure to diseases and predators ...
Mark Maraun, Tancredi Caruso, Jonathan Hense, Ricarda Lehmitz, Levan Mumladze, Maka Murvanidze, Ioana Nae, Julia Schulz, Anna Seniczak, Stefan Scheu   +9 more
doaj   +1 more source

The Overlooked Threat of Global Warming on Elasmobranch Fertility

Fish and Fisheries, Volume 27, Issue 1, Page 41-55, January 2026.
ABSTRACT Climate change is increasingly recognised as a critical threat to global biodiversity, yet its impacts on reproductive processes remain poorly understood in many marine taxa. Elasmobranchs (sharks, skates and rays) represent a particularly vulnerable group due to their peculiar life histories, low fecundity, and diverse reproductive modes.
Noémie Coulon, Eric Feunteun, Alexandre Carpentier, Anne Lizé   +3 more
wiley   +1 more source

Infection dynamics of endosymbionts that manipulate arthropod reproduction

Biological Reviews, Volume 100, Issue 5, Page 1787-1812, October 2025.
ABSTRACT A large proportion of arthropod species are infected with endosymbionts, some of which selfishly alter host reproduction. The currently known forms of parasitic reproductive manipulations are male‐killing, feminization, cytoplasmic incompatibility, parthenogenesis induction and distortion of sex allocation.
Franziska A. Brenninger, Roman Zug, Hanna Kokko   +2 more
wiley   +1 more source