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      Demography of alpine red squirrel populations in relation to fluctuations in seed crop size

      , , , , ,

      Ecography

      Wiley

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          Most cited references 62

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          Modeling Survival and Testing Biological Hypotheses Using Marked Animals: A Unified Approach with Case Studies

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            Pulsed resources and community dynamics of consumers in terrestrial ecosystems.

            Many terrestrial ecosystems are characterized by intermittent production of abundant resources for consumers, such as mast seeding and pulses of primary production following unusually heavy rains. Recent research is revealing patterns in the ways that consumer communities respond to these pulsed resources. Studies of the ramifying effects of pulsed resources on consumer communities integrate 'top-down' and 'bottom-up' approaches to community dynamics, and illustrate how the strength of species interactions can change dramatically through time.
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              Sources and sinks in population biology.

               Paula Dias (1996)
              The various habitats inhabited by a given species are never of the same quality. When demographic models take into account this habitat heterogeneity, the source-sink concept naturally emerges: a local demographic surplus arises in good quality habitats (source), and a local demographic deficit occurs in habitats of poor quality (sink). Within a landscape, a permanent migration of propagules or individuals from source to sink habitats may lead to a stabilization of the overall demographic system. This simple situation, explored in the recent literature, has surprising properties. In particular, it requires a change in our view of classical concepts such as ecological niche and carrying capacity, it can explain the existence and persistence of local maladaptation and it can improve conservation practice.
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                Author and article information

                Journal
                ECOG
                Ecography
                Wiley
                09067590
                16000587
                February 2008
                February 2008
                : 31
                : 1
                : 104-114
                Article
                10.1111/j.2007.0906-7590.05251.x
                © 2008

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