Matrilineal kin clusters and their effect on reproductive success in the field vole Microtus agrestis
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چکیده
منابع مشابه
Sebaceous glands on the hindquarters of the vole, Microtus agrestis.
on the hindquarters at the age of about 3 months. In the following 1 to 2 months, hair is lost from these regions revealing raised patches of bright pink skin. Each patch is about 20 mm long and 15 mm wide, has a coarse texture, one or two characteristic folds (Pl. 1, Fig. 1) and a musty odour. Histologically, the skin contains very greatly enlarged holocrine sebaceous glands (Pl. 1, Fig. 2). T...
متن کاملHypothalamo-hypophysial control of ovulation in the vole (Microtus agrestis).
Electrical stimulation of the anterior hypothalamus of the vole, Microtus agrestis, usually results in ovulation, whereas stimulation of areas in the posterior hypothalamus do not. Ovulation can also be elicited by injections of sheep median-eminence extracts, and by preparations ofsheep luteinizing hormone. Observations on the number of corpora lutea formed, and ripe Graafian follicles remaini...
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previous studies regarding teachers’ beliefs have revealed that teachers’ beliefs have influence on their classroom practices. the current study aimed to investigate the effect of teachers’ beliefs about teaching reading strategies on students’ motivation and success in reading comprehension in the context of english teaching as a foreign language in high schools of mazandaran, iran. data were ...
Effects of sheep grazing on abundance and predators of field vole (Microtus agrestis) in upland Britain
A technique using fresh feeding signs as an index of density was validated and used to survey the effects of sheep grazing on vole population densities in four upland habitats in the northern Peak District National Park, UK. In grazed areas Molinia caerulea grasslands supported most voles, Nardus stricta grasslands supported fewer and Eriophorum vaginatum and Calluna vulgaris-dominated areas su...
متن کاملPhotoperiodic control of testis activity in the vole, Microtus agrestis.
Under natural conditions the vole (Microtus agrestis) breeds in the spring and summer but not in the autumn and winter. This seasonal change was attributed by Baker & Ranson (1933) to the influence of hours of sunshine, and in the laboratory it has been shown that photoperiod affects the growth ofgonads and maintenance of their activity (Baker & Ranson, 1932; Clarke & Kennedy, 1967; Breed & Cla...
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ژورنال
عنوان ژورنال: Behavioral Ecology
سال: 1998
ISSN: 1045-2249,1465-7279
DOI: 10.1093/beheco/9.1.85