Results 111 to 120 of about 1,104,726 (307)

Global Fluoride Toxicology Landscape: Bibliometric Approaches and Scientific Mapping

open access: yesEnvironmental Toxicology, EarlyView.
ABSTRACT This study analyzed research trends in the 100 most‐cited articles on fluoride toxicology, a topic widely debated due to the toxic effects associated with levels deemed safe for human exposure. A bibliometric analysis was conducted using the Web of Science‐Core Collection, extracting data such as citation count, authors, keywords, journal ...
Maria Karolina Martins Ferreira   +8 more
wiley   +1 more source

Is sperm morphology functionally related to sperm swimming ability? A case study in a wild passerine bird with male hierarchies

open access: yesBMC Evolutionary Biology, 2018
Background Sexual selection continues after copulation via either sperm competition or cryptic female choice, and favors sperm traits that maximize sperm competitiveness.
Alfonso Rojas Mora   +3 more
doaj   +1 more source

Quantification of steroid hormones in free‐ranging Apennine wolf Canis lupus italicus hair samples collected post‐mortem

open access: yesWildlife Biology, EarlyView.
After decades of dramatic reductions in their populations, Italian wolves have begun recolonizing parts of their historic range. This growth in populations can lead to potential conflicts with human activities, which remain the main cause of wolf mortality.
Ilaria Troisio   +8 more
wiley   +1 more source

<i>Drosophila</i> Arc1 is not required for male fertility or sperm competition success. [PDF]

open access: yesMicroPubl Biol, 2023
Gordon K   +6 more
europepmc   +1 more source

Sperm competition and ejaculate economics

open access: yesBiological Reviews, 2010
Sperm competition was identified in 1970 as a pervasive selective force in post‐copulatory sexual selection that occurs when the ejaculates of different males compete to fertilise a given set of ova. Since then, sperm competition has been much studied both empirically and theoretically.
Parker, G, Pizzari, T
openaire   +2 more sources

Warm waters undermine cryptic female choice

open access: yesFunctional Ecology, EarlyView.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Understanding the thermal sensitivity of reproductive interactions is crucial given global warming. Previous studies have almost exclusively focused on interactions before mating, even though important interactions between the sexes also occur after mating (e.g.
Matthew C. Kustra   +7 more
wiley   +1 more source

Enduring Sperm Competition

open access: yesJournal of Avian Biology, 1994
continued with the trip. On getting home late that night I put the corpse in the fridge and the next morning, some 20 hours after I'd found the bird, I dissected out its testes and seminal glomera a sperm store at the end of the vas deferens which forms the cloacal protuberance in male passerines. To count the total numbers of spermatozoa I diluted the
openaire   +1 more source

Spawning behavior of Arctic charr (Salvelinus alpinus): Spawning synchrony, vibrational communication, and mate guarding

open access: yesEcology and Evolution, 2018
A mismatch in synchrony between male and female gamete release in external fertilizers can result in reduced or failed fertilization, sperm competition, and reduced paternity.
Magnus B. Brattli   +3 more
doaj   +1 more source

Intraspecific morphological variation of the sperm storing organ in two hermaphroditic land snail species

open access: yesJournal of Biological Research - Thessaloniki, 2019
Background Postcopulatory sexual selection is very important in species with reproductive strategies that involve multiple mating and prolonged sperm storage.
Alexandra Staikou   +1 more
doaj   +1 more source

Intergenerational response to sperm competition risk in an invasive mammal. [PDF]

open access: yesProc Biol Sci, 2023
Firman RC   +3 more
europepmc   +1 more source

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