Long-term studies fill a special role in the understanding of.Populations because they, are the only way of determining.Rates of change and their variability (see, Likens 1988;,, & Kareiva Kingsolver Huey 1993). On its own documentation of, changes in abundance does not reveal underlying.Mechanisms but temporal, data can provide useful tests of.Hypotheses if there, are clear predictions of expected changes.For example differences in, habitats may predict different.Responses of populations of the same species to, climatic changeEven in the same region (Crozier Zabel &,, Hamlet 2008). In.This paper I analyse, abundance of the land snail Theba Pisana.(Mu ¨ ller 1774), over 34 consecutive years in the, context of predicted differences in response to variation in weather. In, adjacent contrasting habitats. There have been many studies of.The importance of habitat for local genetic adaptation in land.Snails including temporal, comparisons (see, Ozgo & Kinnison2008; Johnson 2010), but, there have been few relatively longterm (14 - 20 years) studies of abundance (Cain Cook &,,Currey, the 1990; Bloch & Willig 2006; Baker, 2008), and these.Did not compare between habitats.
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