Results 11 to 20 of about 18,588 (258)

Neutral fitness outcomes contradict inferences of sexual ‘coercion’ derived from male’s damaging mating tactic in a widow spider

open access: yesScientific Reports, 2017
Sexual conflict over mating frequency has driven the evolution of morphological and behavioural traits across taxa. Interactions may be termed ‘coercive’ and assumed to arise from conflict when male mating behaviours cause physical injury to females and ...
Luciana Baruffaldi   +1 more
doaj   +3 more sources

Does Male Care, Provided to Immature Individuals, Influence Immature Fitness in Rhesus Macaques? [PDF]

open access: yesPLoS ONE, 2015
Among many mammals, maternal care strongly impacts infant survival; however, less is known about whether adult males also affect infant fitness. Paternal care is expected when providing care enhances offspring survival and reproduction, which likewise ...
Doreen Langos   +3 more
doaj   +3 more sources

The relevance of age and nutritional status on the mating competitiveness of medfly males (Diptera: Teprhitidae) [PDF]

open access: yesZoologia (Curitiba), 2013
Results of previous investigations trying to ascertain which physiological factors are more important to the mating success of medfly males are controversial.
Alzira Kelly Passos Roriz   +1 more
doaj   +2 more sources

Mating success and potential male-worker conflict in a male-dimorphic ant [PDF]

open access: yesBMC Evolutionary Biology, 2007
Background Males of many species adjust their reproductive tactics with regard to their condition and status. For example, large males may develop weapons and fight for access to females, whereas small or undernourished males do not express costly ...
Darrouzet Eric   +2 more
doaj   +2 more sources

Survival and Development of Striacosta albicosta (Smith) (Lepidoptera: Noctuidae) Immature Stages on Dry Beans, non-Bt, Cry1F, and Vip3A Maize

open access: yesInsects, 2019
Striacosta albicosta is a crop pest that causes economic damage in the United States and Canada. Only maize and dry beans are shown to be suitable hosts, since larval development is incomplete on other hosts.
Débora G. Montezano   +4 more
doaj   +3 more sources

Dynamic Changes in the Phenotype of Dendritic Cells in the Uterus and Uterine Draining Lymph Nodes After Coitus

open access: yesFrontiers in Immunology, 2020
Dendritic cells (DCs) are essential for successful embryo implantation. However, the properties of uterine DCs (uDCs) during the implantation period are not well characterized.
Ippei Yasuda   +10 more
doaj   +1 more source

Sex-specific chemical cues from immatures facilitate the evolution of mate guarding inHeliconiusbutterflies [PDF]

open access: yesProceedings of the Royal Society B: Biological Sciences, 2009
Competition for mates has substantial effects on sensory systems and often leads to the evolution of extraordinary mating behaviours in nature. The ability of males to find sexually immature females and associate with them until mating is a remarkable example.
Catalina, Estrada   +3 more
openaire   +2 more sources

Surface Membrane Hydrophobicity of Paramecium primaurelia Mating Types: Analysis under Immaturity and Maturity Conditions [PDF]

open access: yesZoological Science, 1995
Abstract Paramecium primaurelia stock 90 clones were examined in their mating immaturity and maturity stages, under starving conditions triggering mating reactivity in mature cells. Living samples were labelled by cycloheptaamilosedansyl chloride (CDC) complex, which has been proved to be an effective fluorescent marker of outer membrane proteins in ...
Maria Umberta Delmonte Corrado   +4 more
openaire   +1 more source

First documentation of putative mating behavior in blue sharks (Prionace glauca) reveals a potential reproductive area in the Northeast Atlantic [PDF]

open access: yesWeb Ecology
Reproductive behavior in sharks remains poorly understood, with direct observations of mating reported in only a few species. The blue shark (Prionace glauca) is a widely distributed, placental viviparous species, yet direct evidence of mating behavior ...
L. Vossgaetter   +5 more
doaj   +1 more source

MAT1-1-3, a Mating Type Gene in the Villosiclava virens, Is Required for Fruiting Bodies and Sclerotia Formation, Asexual Development and Pathogenicity

open access: yesFrontiers in Microbiology, 2020
Villosiclava virens is the prevalent causative pathogen of rice false smut, a destructive rice disease. Mating-type genes play a vital role in the evolution of mating systems in fungi.
Mingli Yong   +12 more
doaj   +1 more source

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