The British Herpetological Society

The Herpetological Journal is the Society's prestigious quarterly scientific journal. Articles are listed in Biological Abstracts, Current Awareness in Biological Sciences,Current Contents, Science Citation Index, and Zoological Record.

The 2017/18  impact factor of the Herpetological Journal is 1.268

  pdfBHS Ethics Policy

Download Access:

  • The latest 20 issues can be downloaded when logged in with a Herpetological Journal subscription membership.
  • Individual articles can be purchased for download.
  • Older issues and occasional Open Access articles are available for public download

pdf 07. Growth, movement and population dynamics of Natrix maura in a drying river


Open Access


Authors: Adrian Hailey And P. M. C. Davies

Abstract: Viperine water snakes were studied by mark-recapture in a small river in Eastern Spain from 1981 to 1983, a period of drought. Observed growth rates between captures were low and highly variable. Growth rings were counted in skull bones; narrow rings could not be found, and the observed rings were probably from periods of faster growth or normal growth before the drought. The rings predict that males and females reached maturity in their third and fifth years, respectively. The effect of drought was greater on growth than on reproduction. Movements of snakes captured several times at long intervals suggest that the home ranges of mature males and females were I 70m and 250m of river, respectively, although some individuals moved I km between years. A review of published data showed that widely foraging grass and garter snakes have greater displacements between captures than the more sedentary water snakes.
There were estimated to be 1 060 and 390 adult males and females in the main study area, which was a 2km length of river which included most of the permanent unpolluted water in the river system. Annual survival of adult snakes remaining within the study area was estimated as 0.53 ± 0. 16 and 0. 71 ± 0.25 in males and females, respectively. A simple model of the dynamics of this population was developed from results on survival, recruitment, growth and fecundity, as a hypothesis for further study. The model suggested that: I) There was dispersal of adult males but not adult females - this was supported by the population size structure in peripheral areas where mature females were scarce and which were probably stocked by dispersal. 2) The n um ber of adult males and females was stable or increasing, and juvenile survival of about 0.65 year- I would be necessary for total population stability.


For further information and submission guidelines please see our Journal Instructions to Authors



NOTE: as of January 2017, all new editions of the HJ are ONLY available online via the BHS website. The BHS no longer has a commercial hosting agreement with Ingenta  -  although editions prior to end 2016 remain accessible on Ingenta .  Those editions are of course also accessible on the BHS website for subscribers with an active and valid membership.  Should you experience any difficulty accessing HJ editions via the website or have any queries in this regard, please contact