Handbook of field sampling for multi-taxon biodiversity studies in European forests

Sabina Burrascano, Giovanni Trentanovi, Yoan Paillet, Jacob Heilmann-Clausen, Paolo Giordani, Simonetta Bagella, Andrés Bravo-Oviedo, Thomas Campagnaro, Alessandro Campanaro, Chianucci Francesco, Pallieter De Smedt, García-Mijangos Itziar, Dinka Matošević, Tommaso Sitzia, Réka Aszalós, Gediminas Brazaitis, Cutini Andrea, D'Andrea Ettore, Inken Doerfler, Jeňýk HofmeisterJan Hošek, Philippe Janssen, Sebastian Kepfer Rojas, Nathalie Korboulewsky, Daniel Kozák, Thibault Lachat, Asko Lõhmus, Rosana Lopez, Anders Mårell, Radim Matula, Martin Mikoláš, Silvana Munzi, Björn Nordén, Meelis Pärtel, Johannes Penner, Kadri Runnel, Peter Schall, Miroslav Svoboda, Flóra Tinya, Mariana Ujházyová, Kris Vandekerkhove, Kris Verheyen, Fotios Xystrakis, Péter Ódor

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Abstract

Forests host most terrestrial biodiversity and their sustainable management is crucial to halt biodiversity loss. Although scientific evidence indicates that sustainable forest management (SFM) should be assessed by monitoring multi-taxon biodiversity, most current SFM criteria and indicators account only for trees or consider indirect biodiversity proxies. Several projects performed multi-taxon sampling to investigate the effects of forest management on biodiversity, but the large variability of their sampling approaches hampers the identification of general trends, and limits broad-scale inference for designing SFM. Here we address the need of common sampling protocols for forest structure and multi-taxon biodiversity to be used at broad spatial scales. We established a network of researchers involved in 41 projects on forest multi-taxon biodiversity across 13 European countries. The network data structure comprised the assessment of at least three taxa, and the measurement of forest stand structure in the same plots or stands. We mapped the sampling approaches to multi-taxon biodiversity, standing trees and deadwood, and used this overview to provide operational answers to two simple, yet crucial, questions: what to sample? How to sample? The most commonly sampled taxonomic groups are vascular plants (83% of datasets), beetles (80%), lichens (66%), birds (66%), fungi (61%), bryophytes (49%). They cover different forest structures and habitats, with a limited focus on soil, litter and forest canopy. Notwithstanding the common goal of assessing forest management effects on biodiversity, sampling approaches differed widely within and among taxonomic groups. Differences derive from sampling units (plots size, use of stand vs. plot scale), and from the focus on different substrates or functional groups of organisms. Sampling methods for standing trees and lying deadwood were relatively homogeneous and focused on volume calculations, but with a great variability in sampling units and diameter thresholds. We developed a handbook of sampling methods (SI 3) aimed at the greatest possible comparability across taxonomic groups and studies as a basis for European-wide biodiversity monitoring programs, robust understanding of biodiversity response to forest structure and management, and the identification of direct indicators of SFM.
Original languageEnglish
Article number108266
JournalEcological Indicators
Volume132
Number of pages13
ISSN1470-160X
DOIs
Publication statusPublished - 1-Dec-2021

Thematic List 2020

  • Forest

Thematic list

  • Forest management
  • Fauna
  • Flora
  • Woods and parks

EWI Biomedical sciences

  • B003-ecology
  • B430-sylviculture

Policy

  • woodland protection

Geographic list

  • Europe

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