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We investigated the impact of deer on an isolated marginal population of Matteuccia struthiopteris and on its plant community in the northern Apennines, where in recent decades the species has decreased dramatically. Our experiment was based on a 6‐year before and after control impact (BACI) design, comparing plots with deer grazing and plots where deer were excluded. Exclusion of grazing interacted...
The best duration of cold treatment for germination of Saxifraga aizoides and S. paniculata was investigated comparing seeds collected from Alpine and Apennine populations. For S. aizoides seeds of both provenances,the highest germination was obtained after 12 weeks of cold treatment, and Apennine seeds showed the best performance. For S. paniculata, the effect of cold treatment differed greatly in...
Generalized linear models were used to test the effect of fish, using ponds with and without fish and habitat features as covariates, on richness and abundance of amphibian species. Five fish species and six amphibian species were recorded in 60 permanent ponds located in central Italy. The choice of covariates (macrophyte cover and pond surface area) was made after studying the correlations. The...
Our primary goal was to test how consistently macrophytes, physico-chemical features and amphibians classify pond sites, by applying a measure of classification strength based on a set of cross-tests performed with randomisation protocols. Finally, we used ordination methods to identify the major environmental factors correlated with each biotic group. Significant results of concordance and higher...
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