Bird Diversity as a Support Decision Tool for Sustainable Management in Temperate Forested Floodplain Landscapes

Abstract

Sustainably managed forests provide multiple ecosystem services in cultural landscapes, including maintaining biodiversity. Better understanding of the benefits regarding the biodiversity of different silvicultural practices is important for sustainable landscape management. Conservation targets in forested landscapes should be determined by land managers and policy-makers, based on serious ecological research. This study deals with response of bird diversity to three different habitat types of temperate hardwood floodplain forests, which reflect specific forms of forest management. Research was based on long-term field bird census in the years 1998 to 2002 applying the point count method. Data was analysed using regression analysis with dummy variables. The results of the study indicate that hardwood floodplain forest heterogeneity, supported by different types of forest management (old-growth forest protection, group-selection harvesting and forest edge protection), provides large-scale habitat mosaic conditions suitable for many breeding bird species with different ecological niches. This result suggests that comparison of bird diversity response to different forest management types can be used as a decision support tool for sustainable landscape management strategy and local management practices in forested cultural lowland landscapes. Improvements in both regional and local ecological knowledge are generally needed in order to control floodplain land use decisions, which are typically made on the scale of landscape management. 2 of 15 above transition zones, below which, species loss is likely to occur. Forest ecosystems are crucial in maintaining climate, biodiversity and human well-being [7]. At the landscape scale, the benefits produced by forests are strongly influenced by forest management [8]. This is especially important in cultural lowland landscapes along large rivers, areas which have suffered from a significant decline in riparian floodplain forests [9].In the European temperate zone, hardwood floodplain forests (HFF) are endangered habitats. HFF provide various important ecosystem services in the lowland landscapes [10]. Land use changes and land use intensification induced by human activities are closely connected to the current ecological status of HFF in many European regions [11]. Despite centuries of intense human pressure, HFF are forest ecosystems with very rich alpha-biodiversity on the scale of individual trees and on the scale of forest stands [12,13]. A mosaic of floodplain forest habitats (including rivers and wetlands) creates a unique ecological gradient of beta-biodiversity [14]. Thus, HFF are key ecosystems in the maintenance of biodiversity on the scale of lowland riparian landscapes [15]. Because of their high biodiversity value, the natural and semi-natural remnants of HFF are usually included in ecological networks in a landscape [16]. They are also protected within the framework of international (such as the Natura 2000 European Network) or national systems for protected area...

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