Case study:Toce River: conservation of riparian habitats for breeding and migratory birds - LIFE02 NAT/IT/008572

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Location: 46° 4' 41.56" N, 8° 16' 58.94" E

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Project overview

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Status	Complete
Project web site
Themes
Country	Italy
Main contact forename	Barbara
Main contact surname	Lomazzi
Main contact user ID
Contact organisation	Verbania County
Contact organisation web site
Partner organisations
Parent multi-site project
This is a parent project encompassing the following projects	No

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Project summary

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The river Toce in the Alps is the next largest tributary of Lake Maggiore after the river Ticino. It is a very important site for nesting birds and especially migrating birds including priority species, such as the corncrake (Crex crex). The Toce fulfils a vital role as an ecological corridor across the Alps during bird migration. The project aimed to help the conservation, rehabilitation and extension of the river and riverbank habitats along a stretch of the river Toce downstream Domodossola. The project achieved some relevant results such as the creation of an area with different water levels down to a maximum depth of 1 m, thus favouring amphibians and birds in the locality of Prata (Municipality of Vogogna); the reduction of the presence of invasive exotic trees and shrubs in termophilous shrub habitats; the maintenance of suitable habitat for nesting birds in the lowland hay meadows through specific management intervention consisting in mowing; the creation of new alluvial forests.

Monitoring surveys and results

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The results of the monitoring survey started in 2003 revealed an increase of some bird species using the restored habitats as nesting, feeding and hunting (raptors) areas as a positive consequence of the interventions, especially in the lowland hay meadows and in the dry scrublands.

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Image gallery

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Eutrophic lake before the activities.

Eutrophic lake after the activities.

River bank with scions of Salix.

Catchment and subcatchment Select a catchment/subcatchment Edit the catchment and subcatchment details (affects all case studies in this subcatchment) Catchment River basin district Distretto idrografico del fiume PO River basin Bacino del Toce Subcatchment River name Toce Area category 10 - 100 km² Area (km2) Maximum altitude category 200 - 500 m Maximum altitude (m) Dominant geology Siliceous Ecoregion Italy and Corsica Dominant land cover Urban Waterbody ID Site Edit site Name IT1140006 “Greto del torrente Toce tra Domodossola e Villadossola” WFD water body codes 01SS4N829PI WFD (national) typology PE01ss4n WFD water body name Pre-project morphology Braided Reference morphology Braided Desired post project morphology Heavily modified water body National/international site designation EU - Special Area of Conservation Local/regional site designations SIC e ZPS “Greto del torrente Toce tra Domodossola e Villadossola”, IT1140006 Protected species present Invasive species present Species of interest Dominant hydrology Dominant substrate Gravel, Mixture with sand and lime River corridor land use Urban Average bankfull channel width category Average bankfull channel width (m) Average bankfull channel depth category Average bankfull channel depth (m) Mean discharge category Mean annual discharge (m3/s) Average channel gradient category Average channel gradient 4.6 Average unit stream power (W/m2) Project background Edit project background Reach length directly affected (m) Project started 2003/01/01 Works started Works completed Project completed 2006/12/31 Total cost category Total cost (k€) 532.708532.708 k€ <br />532,708 € <br /> Benefit to cost ratio Funding sources UE founds (LIFE02 NAT/IT/008572), Provincia del Verbano-Cuneo-Ossola Cost for project phases Phase cost category cost exact (k€) Lead organisation Contact forename Contact surname Investigation and design Stakeholder engagement and communication Works and works supervision Post-project management and maintenance Monitoring Reasons for river restoration Edit reasons for restoration Mitigation of a pressure Hydromorphology Structure & condition of riparian/lake shore zones Biology Physico-chemical Other reasons for the project rehabilitation and extension of the river and riverbank habitats for nesting and migrating birds Measures Edit Measures Structural measures Bank/bed modifications Bank stabilization and erosion protection, Removal of sediments Floodplain / River corridor Control of invasive species, Riparian planting, Creation of wetlands Planform / Channel pattern Other Non-structural measures Management interventions Social measures (incl. engagement) Other Monitoring Hydromorphological quality elements Edit Hydromorphological quality elements Element When monitored Type of monitoring Control site used Result Before measures After measures Qualitative Quantitative [[]] Biological quality elements Edit biological quality elements Element When monitored Type of monitoring Control site used Result Before measures After measures Qualitative Quantitative [[]] Physico-chemical quality elements Edit Physico-chemical quality elements Element When monitored Type of monitoring Control site used Result Before measures After measures Qualitative Quantitative [[]] Any other monitoring, e.g. social, economic Edit Other responses Element When monitored Type of monitoring Control site used Result Before measures After measures Qualitative Quantitative Birds Yes Yes No No No Improvement Monitoring documents Upload monitoring documents Additional documents and videos Upload additional documents Additional links and references Edit links and references Link Description http://ec.europa.eu/environment/life/project/Projects/index.cfm?fuseaction=search.dspPage&n proj id=1981 Project description in the LIFE database Supplementary Information Edit Supplementary Information