Social and spatial organization of free-ranging shrews, Sorex coronatus and Neomys fodiens (Insectivora, Mammalia)
Article Abstract:
The spatial distribution and social organization of free ranging shrews depends on environmental conditions and the availability of food resources. The risk of predators, competition and spatial distribution affects mating systems of the shrews. The shrew species Sorex coronatus and Neomys fodiens are territorial during winter and in the non-breeding season. A variation in mating behavior is seen in the two species, the first being monogamous with a tendency toward polygamy, and the latter being promiscuous.
Publication Name: Animal Behaviour
Subject: Zoology and wildlife conservation
ISSN: 0003-3472
Year: 1993
User Contributions:
Comment about this article or add new information about this topic:
Paternal investment and reproductive success in the California mouse
Article Abstract:
Male parental investment in California mice shows that male presence can increase the number of pups raised fourfold during a 74-day period. Single females could raise two pup litters but four pup litters were too large for them. There was also a shorter interval between litters for females in pairs compared to single females, with an average of 37 days compared to a 53-day average between litters. The mice were made to forage by using a wheel.
Publication Name: Animal Behaviour
Subject: Zoology and wildlife conservation
ISSN: 0003-3472
Year: 1997
User Contributions:
Comment about this article or add new information about this topic:
Paternal care enhances male reproductive success in pine engraver beetles
Article Abstract:
Male pine engravers, Ips pini, excavate debris from breeding chambers built beneath the bark of host trees. The duration of parental care provided by individual male pine engravers was measured, along with the reproductive success based on the total number of eggs laid. The residence time of males in the chambers was positively correlated with the distance between eggs and the total number of eggs.
Publication Name: Animal Behaviour
Subject: Zoology and wildlife conservation
ISSN: 0003-3472
Year: 1998
User Contributions:
Comment about this article or add new information about this topic:
- Abstracts: Historical and experimental learned predator recognition in free-living New Zealand robins. Physiological dependence on copulation in parthenogenetic females can reduce the cost of sex
- Abstracts: Two different areas within the primary motor cortex of man. Sensitization of meningeal sensory neurons and the origin of headaches
- Abstracts: Vocal behaviour of the frog Eleutherodactylus antillensis on the British Virgin Islands. Behaviourally mediated sex selection: characteristics of successful male black grouse
- Abstracts: Sperm transfer and male competition in a bumblebee. Functions of mudballing behaviour in the European fiddler crab Uca tangeri
- Abstracts: Ecology, evolution and division of labour in social insects. Effects of adult mortality risks on parasitoid foraging tactics