Filial cannibalism in a paternal mouthbrooding fish in relation to mate availability

Article Abstract:

The filial cannibalism in mouthbrooding males of the cardinal fish, Apogon doederleini, in southern Japan is related to the mating techniques of females that reduce inter-spawning intervals by changing mates. This cannibalism occurs within a day of spawning. Males prefer to eat broods produced by smaller and non-resident females. They change mates after cannibalism, and re-mate faster than males whose broods are removed. Cannibalistic males are able to indulge in multiple mating by eating their first brood and rearing the next one.

Sexual behavior, Causes of, Fishes, Cannibalism (Animals), Animal cannibalism

---

Pup contact promotes paternal responsiveness in male meadow voles

Article Abstract:

Analysis of social factors affecting paternal responsiveness and suppression of infanticide in male meadow voles, Microtus pennsylvanicus, tested with unrelated pups shows that pup exposure enhances paternal responsiveness. Rearing of pups as neonates with their fathers increases the responsiveness of adult males to pups. Intense exposure to pups is associated with diminished aggression and increased paternal responsiveness. Copulation and female contact do not influence male responsiveness to pups.

Analysis, Behavior, Parental behavior in animals, Animal parental behavior, Microtus pennsylvanicus, Meadow vole

---

Effect of maternal and paternal line on spatial and temporal marine distribution in Atlantic salmon

Article Abstract:

The influence of maternal and paternal line on spatial and temporal marine distribution in Atlantic salmon was studied.

Fish migration, Atlantic salmon

Similar abstracts:

• Abstracts: Genetic imprinting suggested by maternal heterodisomy in nondeletion Prader-Willi syndrome. Obesity in the new millennium
• Abstracts: Automatic design and manufacture of robotic lifeforms. The relationship between matter and life. From robot dreams to reality
• Abstracts: Globins in the brain. A vertebrate globin expressed in the brain. Netrin-1-mediated axon outgrowth and cAMP production requires interaction with adenosine A2b receptor
• Abstracts: Gained in the translation. A victim of truth: Vitalism was an attempt to reconcile rationality with a sense of wonder
• Abstracts: Deep-ocean gradients in the concentration of dissolved organic carbon. Drifters reveal deep circulation

This website is not affiliated with document authors or copyright owners. This page is provided for informational purposes only. Unintentional errors are possible.