Colonization dynamics of new ponds, and the age structure of colonizing Alpine newts, Triturus alpestris

  • Published source details Joly P. & Grolet O. (1996) Colonization dynamics of new ponds, and the age structure of colonizing Alpine newts, Triturus alpestris. Acta Oecologica, 17, 599-608.


This study is summarised as evidence for the following.

Action Category

Create ponds for salamanders (including newts)

Action Link
Amphibian Conservation
  1. Create ponds for salamanders (including newts)

    A replicated, before-and-after study in 1992–1995 of five created ponds in meadows near Lyon, France (Joly & Grolet 1996) found that alpine newts Triturus alpestris established a stable breeding population in one of five ponds over the first three years. Breeding occurred in three ponds in 1–3 years (3–38 larvae/pond). All ponds were used by newts in the first year, although four ponds only had 2–7 animals, the fifth had 40 newts. First year colonizers were biased towards males (38 vs 15) and tended to be 1–2 years old. By the third year one pond was used by 176 newts, two by 3–6 and two by zero newts. Colonization failed in the two ponds that were colonized by fish, although two of three fish species disappeared within a year. Five ponds were excavated in September 1992. Each was 12 x 5 m and 1.5 m deep with sloping banks. Newts were sampled by netting once a month in March-June 1993–1995. Animals were aged and tagged.


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