Wintering waterbirds along coastal wetlands of Friuli-Venezia Giulia and Veneto (1997-2006)

Francesco Scarton, Mauro Bon, Fabio Perco, Emiliano Verza
  • Francesco Scarton
    Associazione Faunisti Veneti, c/o Museo Civico di Storia Naturale di Venezia, Venezia, Italy | scarton@selc.it
  • Mauro Bon
    Associazione Faunisti Veneti, c/o Museo Civico di Storia Naturale di Venezia, Venezia, Italy
  • Fabio Perco
    Stazione Biologica, Staranzano (GO), Italy
  • Emiliano Verza
    Associazione Cult. Nat. Sagittaria, Rovigo, Italy

Abstract

In the decade 1997-2006 the upper Adriatic coastal wetlands (Veneto and Friuli-Venezia Giulia) hosted relevant wintering waterbird numbers: between 295,567 (1997) up to 517,596 (2005), with an overall trend of increase. In the year 2000 this area held almost one third of total wintering waterbirds throughout Italy. Several species (eg. Great White Egret, Common Teal, Wigeon, Curlew, Dunlin) were close to or above 50% of the national total. During the studied period most species increased or remained stable, albeit with annual fluctuations. Few species only decreased. Although a generally positive trend is evident, mainly due to reduced human disturbance, many problematic aspects remain. In the widely distributed privately owned “valli” (hunting/ fishing ponds in the lagoon), “disturbance” is generally calibrated and massive feeding performed, in order to optimize hunting bags. In such areas the management is addressed in favour of quarry species, with positive (or maybe negative) consequences on the other species. In public areas high levels of “disturbance” (shooting included) contributes keeping waterbirds below capacity.

Keywords

Wintering waterbirds, wetlands, Friuli-Venezia Giulia, Veneto, census.

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Submitted: 2014-10-03 14:54:52
Published: 2012-09-30 00:00:00
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Copyright (c) 2012 Francesco Scarton, Mauro Bon, Fabio Perco, Emiliano Verza

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