Spatially explicit database of tree related microhabitats (TreMs)

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Data Records

The data in this occurrence resource has been published as a Darwin Core Archive (DwC-A), which is a standardized format for sharing biodiversity data as a set of one or more data tables. The core data table contains 42,078 records. 1 extension data tables also exist. An extension record supplies extra information about a core record. The number of records in each extension data table is illustrated below.

This IPT archives the data and thus serves as the data repository. The data and resource metadata are available for download in the downloads section. The versions table lists other versions of the resource that have been made publicly available and allows tracking changes made to the resource over time.

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Versions

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How to cite

Researchers should cite this work as follows:

Kraus D, Schuck A, Bebi P, Blaschke M, Bütler R, Flade M, Heintz W, Krumm F, Lachat T, Larrieu L, Lehnerova L, Levin M, Mergner U, Pach M, Paillet Y, Pyttel P, Rydkvist T, Santopuoli G, Sever K, Sturm K, Vandekerkhove K, Winter S, Witz M, Winnock M, Marcandella M, Roth I, Jakob A, Dickele R, Hofmann G, Ruis-Eckhardt D, Boschen S, Schölmerich U, Leder B, Guericke M, Merkel H, Löffler D, Schusser S, Runkel M, Steinmetz A, Marx K H, Mongelluzzi A, Wilshusen F, Boutteaux J, Duchamp L, Dericbourg N, Rouyer E, Csikos V, Sweeny K, Steichen D, Leytem M, Konczal S, Stereńczak K, Kazimirovic M, Šebeň V, Baiges Zapater T, van der Maaten-Theunissen M, Pommer A, Nord-Larsen T, Fuhr M, Delebeque L, Navarro L M, Lasala D, Waez-Mousavi S, Sefidi K, Abellanas B (2017): Spatially explicit database of tree related microhabitats (TreMs). v1.26. Institut national de recherche pour l’agriculture, l’alimentation et l’environnement (INRAE). Dataset/Occurrence. http://dynids.toulouse.inra.fr:8180/ipt/resource?r=trems_integrate&v=1.26

Rights

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The publisher and rights holder of this work is Institut national de recherche pour l’agriculture, l’alimentation et l’environnement (INRAE). This work is licensed under a Creative Commons Attribution (CC-BY) 4.0 License.

GBIF Registration

This resource has been registered with GBIF, and assigned the following GBIF UUID: 2e102194-f384-4712-89a4-5db7a3fc409a.  Institut national de recherche pour l’agriculture, l’alimentation et l’environnement (INRAE) publishes this resource, and is itself registered in GBIF as a data publisher endorsed by GBIF France.

Keywords

Forest ecosystem; spatially explicit; demonstration plots; tree species; tree related microhabitat occurrences; taxonomic biodiversity; saproxylic; Occurrence; Observation

Contacts

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Geographic Coverage

Europe: Belgium, Bosnia and Herzegovina, Czech Republic, Denmark, France, Germany, Hungary, Ireland, Italy, Luxembourg, Poland, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland. The network of marteloscopes continues to grow due to an ongoing interest of institutions from Europe but also other world regions. A few plots in this database are located in Chile and Iran.

Taxonomic Coverage

Included are all tree species that occurred at least once in any of the plots.

Temporal Coverage

Project Data

Integrate+ (2013-2016) aimed at establishing permanent plots as demonstration sites (marteloscopes) in main forest types in Europe. Focus was on showing good practice examples of integrative forest management concepts. Integrate+ developed IT support tools for decision-making when it comes to linking objectives of biodiversity conservation and timber production. Such mobile training software applications allow practitioners to perform virtual tree selection exercises in the demonstration sites based on different scenarios and forest management strategies. Immediate feedback on their decisions is given in terms of ecological and economic impacts. Particular attention was given to tree related microhabitats as these structures are home to many, also endangered, species. Retaining and restoring such habitats in managed forests can be well integrated into the work portfolio of forest managers and thus be a direct contribution to biodiversity conservation in managed forests. In the follow up projects Informar (2017-2020) and FoReSite (2020-2022) the marteloscope site network has been/is being expanded continuously. In the course of these projects the'European Network Integrate' was initiated in 2016. It is an alliance of representatives of different European countries that promotes the integration of nature conservation into sustainable forest management at the policy, practice and research level. The Network stimulates the exchange of successful management practices and experiences amongst its members and hosts the marteloscope demonstration site network. The European Forest Institute accompanies the activities of the Network as facilitator and scientific advisor. (integratenetwork.org/)

The personnel involved in the project:

Sampling Methods

Tree location: polar coordinates Tree species: scientific name (Note: tree species was also recorded for standing dead trees as far as possible; in the case of late decay stages or stands with a wide variety of trees species this was not done. The tree species was then recorded as “0”). Diameter breast height (dbh): in [cm] at 1.3 meters height Tree height: in [m] Tree related microhabitats: 64 saproxylic and epixylic tree related microhabitat types are defined and described in detail within a hierarchical structure (published as a field guide; see: quality control for reference).

Method step description:

1. Plot selection: The permanent plots are selected non-systematically based on criteria, such as representative silvicultural systems for a region, accessibility or the availability of TreMs. Further plot selection was limited also by availability of forest stands which could ensure that tree removals would not take place within the next 5 to 10 years. Plot establishment: The plots are usually 1 hectare in size (100 m x 100 m) and of rectangular shape. Some of them, however, deviate in size and outline due to local site conditions, availability of resources or high tree numbers. Our standard approach is to divide the plot into 4 quadrants to facilitate orientation and the use of data subsets. All corners and centre points (incl. the centre points of each quadrant) are permanently marked. All trees with more than 7 cm diameter measured at breast height (dbh 1.30 m) are recorded and numbered. Data collection: All standing living and dead trees are recorded above a dbh of 7 cm. So is the species, spatial position, tree height and crown base height and the abundance of TreMs. Height measurements can e.g. be conducted with a digital hypsometer (VERTEX IV, Haglöf, Sweden), dbh usually with a measuring tape. Tree locations are determined e.g. by using a compass and the distance function of the Vertex digital hypsometer as a standard. In some plots the measurements were/are carried out using a specialized inventory software (Fieldmap, Czech Republic). In other plots tree coordinates were recorded using a GPS Trimble Geo7x. Note that a few trees with a dbh above 7 cm miss coordinates. They are still made available in this dataset to ensure completeness of all trees in the plots. Coordinates for those trees are labelled N/A. TreM recording in the field is based on the catalogue of tree microhabitats (see also quality control).

Collection Data

Additional Metadata

The first version of the database was compiled and published in 2017 by the European Forest Institute in the course of the Integrate+ project (2013-2017; supported by the German Federal Ministry for Food and Agriculture). The database contained at the time 15191 records. The second, updated version of the database was compiled and published in 2020 in the course of the FoReSite project (2020-2022; supported by the German Federal Ministry for Food and Agriculture) by the European Forest Institute in its role as secretariat for the European Integrate network (https://integratenetwork.org/). The database now contains 42078 records.