| 1. |
- HOGGREN, M, et al.
(författare)
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DNA-FINGERPRINTING SHOWS WITHIN-SEASON MULTIPLE PATERNITY IN THE ADDER (VIPERA-BERUS)
- 1995
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Ingår i: COPEIA. - : AMER SOC ICHTHYOLOGISTS HERPETOLOGISTS BUSINESS OFFICE. - 0045-8511. ; :2, s. 271-277
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Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract
- Female adders (Vipera berus) have been observed to copulate several times per season with different males. Observations of matings may not truly reflect paternity because prolonged contractions of the female uterus may function as a ''copulatory plug.'' W
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| 2. |
- Hoggren, M, et al.
(författare)
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Does long-term storage of spermatozoa occur in the adder (Vipera berus)?
- 1996
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Ingår i: JOURNAL OF ZOOLOGY. - : OXFORD UNIV PRESS UNITED KINGDOM. - 0952-8369. ; 240, s. 501-510
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Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract
- In the adder (Vipera berus) multiple inseminations during the spring mating season have been demonstrated. with fertilization taking place several weeks after mating activities have ceased. Subsequent sperm competition in the female reproductive tract can
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| 3. |
- NILSON, G, et al.
(författare)
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PHYLOGENY OF THE VIPERS OF THE CAUCASUS (REPTILIA, VIPERIDAE)
- 1994
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Ingår i: ZOOLOGICA SCRIPTA. - : PERGAMON-ELSEVIER SCIENCE LTD. - 0300-3256. ; 23:4, s. 353-360
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Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract
- Phylogenetic relationships for five taxa of Palearctic vipers (genus Vipera) from the Caucasian region were revealed by cladistic analyses of separate and combined morphological and biochemical characters. The different data sets yielded largely congruent
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| 4. |
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