Safeguarding plants as seeds in ex situ collections is a cost effective element in an integrated plant conservation approach.The European Alps are a regional centre of plant diversity.Six institutions have established...Safeguarding plants as seeds in ex situ collections is a cost effective element in an integrated plant conservation approach.The European Alps are a regional centre of plant diversity.Six institutions have established a regional network covering the European Alps which will conserve at least 500 priority plant species and which will improve the conservation status of plant species in grassland communities in the subalpine,alpine and nival altitudinal belts.Targeted research will expand the knowledge of the ecology of target species.Public engagement activities will raise the awareness for the importance of specific conservation actions in the European Alps.展开更多
The sword lily Gladiolus palustris Gaudin is protected on European level and listed in Annexes II and IV of the EC Habitat Directive 92/43/EEC.It grows in nutrient-poor,calcareous meadows in central and eastern Europe...The sword lily Gladiolus palustris Gaudin is protected on European level and listed in Annexes II and IV of the EC Habitat Directive 92/43/EEC.It grows in nutrient-poor,calcareous meadows in central and eastern Europe.Tree encroachment in montane meadows of the European Alps as a result of recent land use changes and the abandonment of traditional farming practices threaten the survival of this species.Conservation-driven mowing is considered a feasible conservation measure for maintaining high species diversity in abandoned semi-natural grasslands.To assess the effects of tenyears of biennial mowing on a grassland community in the Dolomiti Bellunesi National Park,Italy(Site of Community Importance,Natura 2000 network),ten25 m2 plots were established whereby four plots were placed in the mowed area,four in the non-mowed area and two in a small non-mowed patch of grassland inside the mowed area.In each plot the following variables were recorded,total percentage of plant cover,percentage cover of woody species,percentage cover of herbaceous species,percentage cover and number of flowering ramets of G.palustris and a complete list of species and their percentage abundance.Mowed plots showed a higher species richness than non-mowed plots.The number of G.palustris flowering ramets and percentage cover increased manifold in mowed plots compared to nonmowed plots.The resumption of mowing forconservation purposes undertaken by the managing authority halted the process of tree encroachment and avoided a drastic change in plant composition.Periodic mowing(every second or third year)was demonstrated to be a cost-effective conservation measure in non-productive grasslands to keep grasses at bay in favour of forbs of high conversation value.展开更多
基金funding from the David and Claudia Harding Foundation to ensure the survival of endangered plants and habitats in the European Alps
文摘Safeguarding plants as seeds in ex situ collections is a cost effective element in an integrated plant conservation approach.The European Alps are a regional centre of plant diversity.Six institutions have established a regional network covering the European Alps which will conserve at least 500 priority plant species and which will improve the conservation status of plant species in grassland communities in the subalpine,alpine and nival altitudinal belts.Targeted research will expand the knowledge of the ecology of target species.Public engagement activities will raise the awareness for the importance of specific conservation actions in the European Alps.
基金funded by Dolomiti Bellunesi National Park in the context of European‘Habitat’directive 92/43/CEE monitoringfunding provided by Universitàdegli Studi di Pavia within the CRUI-CARE Agreement。
文摘The sword lily Gladiolus palustris Gaudin is protected on European level and listed in Annexes II and IV of the EC Habitat Directive 92/43/EEC.It grows in nutrient-poor,calcareous meadows in central and eastern Europe.Tree encroachment in montane meadows of the European Alps as a result of recent land use changes and the abandonment of traditional farming practices threaten the survival of this species.Conservation-driven mowing is considered a feasible conservation measure for maintaining high species diversity in abandoned semi-natural grasslands.To assess the effects of tenyears of biennial mowing on a grassland community in the Dolomiti Bellunesi National Park,Italy(Site of Community Importance,Natura 2000 network),ten25 m2 plots were established whereby four plots were placed in the mowed area,four in the non-mowed area and two in a small non-mowed patch of grassland inside the mowed area.In each plot the following variables were recorded,total percentage of plant cover,percentage cover of woody species,percentage cover of herbaceous species,percentage cover and number of flowering ramets of G.palustris and a complete list of species and their percentage abundance.Mowed plots showed a higher species richness than non-mowed plots.The number of G.palustris flowering ramets and percentage cover increased manifold in mowed plots compared to nonmowed plots.The resumption of mowing forconservation purposes undertaken by the managing authority halted the process of tree encroachment and avoided a drastic change in plant composition.Periodic mowing(every second or third year)was demonstrated to be a cost-effective conservation measure in non-productive grasslands to keep grasses at bay in favour of forbs of high conversation value.
