Results 1 to 10 of about 17,782 (128)
Functional morphology of immature mating in a widow spider [PDF]
Frontiers in Zoology, 2021 Background Mating generally occurs after individuals reach adulthood. In many arthropods including spiders, the adult stage is marked by a final moult after which the genitalia are fully developed and functional.
Lenka Sentenská +2 more
exaly +7 more sources
Differences in Mating Propensity Between Immature Female Color Morphs in the Damselfly Ischnura elegans (Insecta: Odonata) [PDF]
Journal of Insect Behavior, 2009 Female-limited color polymorphisms occur in a variety of animal taxa where excessive male sexual harassment may explain the coexistence of multiple female color morphs. In the color polymorphic damselfly Ischnura elegans, mature and immature female color morphs coexist at the mating site where males are in search for suitable mating partners.
Martijn Hammers +2 more
exaly +3 more sources
Induction of ovulation, mating, and conception in androgen-treated immature rats [PDF]
Reproduction, 1987 Summary. Attempts were made to induce pregnancy in androgen-treated immature rats. Treatment with PMSG alone, which causes ovulation in normal immature rats, failed to cause ovulation in androgenized rats. However, treatment with PMSG plus LHRH was effective in causing ovulation.
T Sawada
exaly +3 more sources
Alternative mating tactics in brown widow spiders: mating with or without male self-sacrifice does not affect the copulatory mechanism [PDF]
Frontiers in ZoologyBackground Male self-sacrifice during mating is one of the most extreme forms of male reproductive investment. In two species of widow spiders (genus Latrodectus), males trigger sexual cannibalism by “somersaulting” into the fangs of the female after ...
Lenka Sentenská +3 more
doaj +2 more sources
Evidence of mating by sexually immature female American lobsters Homarus americanus (H. Milne Edwards, 1837) (Decapoda: Nephropidae) [PDF]
Journal of Crustacean Biology, 2017 Recent findings indicate that female American lobsters, Homarus americanus (H. Milne Edwards, 1837), are either reaching sexual maturity at smaller sizes than in the past, due to ocean warming or fishery-induced selection, or they are mating before they are sexually mature.
Winsor H Watson +2 more
exaly +3 more sources
Revista Brasileira De Entomologia, 2016 AbstractLiogenys fusca is a rizophagous insect pest in various crops of economic importance in Brazil. Here we investigated the morphology of immature stages and mating behavior of this species. The redescription of the 3rd instar larvae of L. fusca in this work allows identification and registration of occurrence independently of adults, which occur ...
Sérgio Roberto Rodrigues +2 more
exaly +7 more sources
Revista Brasileira De Entomologia, 2018 Mating behavior and description of immature stages of Cyclocephala melanocephala (Fabricius, 1775) (Coleoptera: Scarabaeidae: Dynastinae), identification key and remarks on known immatures of Cyclocephalini species. Some species of Cyclocephala Dejean, 1821 are regarded as rhizophagous crop pests and others as beneficial species.
Sérgio Roberto Rodrigues +1 more
exaly +6 more sources
BMC Ecology and Evolution, 2023 Background The ‘wallflower’ hypothesis proposes females mate indiscriminately to avoid reproductive delays. Post-copulatory mechanisms may then allow ‘trading up’, favouring paternity of future mates.
Lenka Sentenská +3 more
doaj +1 more source
Transcriptome profiling of sexual maturation and mating in the Mediterranean fruit fly, Ceratitis capitata. [PDF]
PLoS ONE, 2012 Sexual maturation and mating in insects are generally accompanied by major physiological and behavioural changes. Many of these changes are related to the need to locate a mate and subsequently, in the case of females, to switch from mate searching to ...
Ludvik M Gomulski +8 more
doaj +1 more source
Insects, 2021 Understanding how species that follow different life-history strategies respond to stressful temperature can be essential for efficient treatments of agricultural pests.
Weixiang Lv +5 more
doaj +1 more source