Results 31 to 40 of about 547 (142)

Longevity, fertility, and average eggs viability of parthenogenetic females of Cladomorphus phyllinus Gray (Phasmatodea - Phasmatidae)

EntomoBrasilis, 2022
The order Phasmatodea includes insects known as stick insects. In Brazil, few taxonomic, ecological or evolutionary studies have been published in recent years, the reason is related to the few number of researchers dedicated to this particular group ...
Lucas da Silva Torres, Hugo Alejandro Benítez, Jane Costa   +2 more
doaj   +1 more source

Facultative use of thelytokous parthenogenesis for queen production in the polyandrous ant Cataglyphis cursor [PDF]

Journal of Evolutionary Biology, 2013
AbstractThe evolutionary paradox of sex remains one of the major debates in evolutionary biology. The study of species capable of both sexual and asexual reproduction can elucidate factors important in the evolution of sex. One such species is the ant Cataglyphis cursor, where the queen maximizes the transmission of her genes by producing new queens ...
Doums, Claudie, Cronin, Adam, Ruel, Camille, Fédérici, Pierre, Haussy, Claudy, Tirard, Claire, Monnin, Thibaud   +6 more
openaire   +4 more sources

Reproduction in the spider mite Oligonychus yothersi (Acari: Tetranychidae) [PDF]

Anais da Academia Brasileira de Ciências
In this work we reported injuries caused by the spider mite Oligonychus yothersi on Vitis vinifera leaves and we also investigate the sex ratio of this species under laboratory conditions. To access the aspects regarding reproduction, females were placed
JÚLIA J. FERLA, JULIANA GRANICH, NOELI J. FERLA   +2 more
doaj   +1 more source

Viable Triploid Honey Bees (Apis mellifera capensis) Are Reliably Produced in the Progeny of CO2 Narcotised Queens

G3: Genes, Genomes, Genetics, 2018
The haplodiploid system of sex determination of Hymenoptera acts as an exaptation for species to evolve novel forms of asexual reproduction including thelytoky (clonal offspring of the mother). During normal reproduction in Hymenoptera, three of the four
Benjamin P. Oldroyd, Sarah E. Aamidor, Gabriele Buchmann, Michael H. Allsopp, Emily J. Remnant, Fan F. Kao, Rebecca J. Reid, Madeleine Beekman   +7 more
doaj   +1 more source

Gradual, temperature-induced change of secondary sexual characteristics in Trichogramma pretiosum infected with parthenogenesis-inducing Wolbachia [PDF]

PeerJ, 2019
Intersex is an intermediate stage of sexual differentiation in insects. Determining intersex morphology and the cause of its production will aid in the understanding of the mechanism of sexual differentiation in insects. In this paper, Wolbachia-infected
Su-fang Ning, Jin-cheng Zhou, Quan-quan Liu, Qian Zhao, Hui Dong   +4 more
doaj   +2 more sources

Observations on the Burrow Structures and Larval Behavior of Ephoron shigae (Takahashi, 1924) (Ephemeroptera: Polymitarcyidae) in River Sediments

International Review of Hydrobiology, Volume 111, Issue 2, December 2026.
ABSTRACT The larvae of the mayfly Ephoron shigae (Takahashi, 1924) (Ephemeroptera: Polymitarcyidae) inhabit distinctive U‐shaped burrows in river and lake sediments, yet their ecology remains poorly documented. Using newly developed mechatronic technology, we obtained continuous observations that revealed new aspects of larval behavior.
Yuichi Hasuda, Hitoshi Sugiyama
wiley   +1 more source

Genetic diversity and the phylogeography of parthenogenesis: comparing bisexual and thelytokous populations of Nemasoma varicorne (Diplopoda: Nemasomatidae) in Denmark [PDF]

Hereditas, 2002
The millipede, Nemasoma varicorne, represents a textbook example of geographic parthenogenesis with thelytokous populations being distributed north, east, south and west of the distribution of the bisexual ancestor in the deciduous forests of central Europe.
Jensen, Lone Hoy, Enghoff, Henrik, Frydenberg, Jane, Parker Jr., E. Davis   +3 more
openaire   +3 more sources

Life-history of the parthenogenetic oonopid spider, Triaeris stenaspis (Araneae: Oonopidae)

European Journal of Entomology, 2009
Selected life-history traits of an oonopid spider, Triaeris stenaspis Simon, which has been introduced into greenhouses in Europe, were investigated. Spiders were reared in the laboratory under constant physical and dietary conditions, and followed from ...
Stanislav KORENKO, Jakub ŠMERDA, Stano PEKÁR   +2 more
doaj   +1 more source

Population Dynamics of Greenhouse Thrips (Heliothrips haemorrhoidalis) on Avocado Under Single and Combined Predator Releases

New Zealand Journal of Zoology, Volume 53, Issue 3, September 2026.
The greenhouse thrips, Heliothrips haemorrhoidalis (Bouché, 1833), is an important avocado pest in New Zealand, where repeated infestations reduce leaf quality and tree vigour. To assess biological control stability under different predator assemblages, this study evaluated thrips population dynamics and predator survival across two sequential phases ...
Junlin Cao, Zhi‐Qiang Zhang
wiley   +1 more source

A method for estimating variation in the phenotypic expression of morphological characters by thelytokous parthenogenesis in Apis mellifera capensis [PDF]

Apidologie, 2002
Les ouvrieres pondeuses de l'abeille du Cap (Apis mellifera capensis Escholtz) produisent une descendance femelle par parthenogenese thelytoque, ce qui permet de quantifier les effets de l'environnement sur l'expression du genotype dans les lignees clonales.
Radloff, Sarah E., Hepburn, Randall, Neumann, Peter, Moritz, Robin F.A., Kryger, Per; id_orcid 0000-0001-5306-3230   +4 more
openaire   +2 more sources