Project

Inventory of the Kellerwald-Edersee National Park (Hesse, Germany)

Goal: Callistus - Gemeinschaft für Zoologische & Ökologische Untersuchungen [association for zoological and ecological research] is involved in the zoological inventory of the Kellerwald-Edersee National Park. We are trapping and collecting in selected habitats and reached meanwhile totals of 340 spider species (Araneae), 138 carabid species (Coleoptera: Carabidae), 19 havestmen species (Opiliones) and 10 pseudoscorpion (Pseudoscorpiones) species. Numerous Red Data List species, rare species and species at the border of their known distribution are recorded.

Updates
0 new
1
Recommendations
0 new
0
Followers
0 new
22
Reads
0 new
216

Project log

Theo Blick
added a research item
In the north-western part of the Kellerwald-Edersee National Park the spider and carabid fauna was investigated at nine sites. From mid July 2011 to mid July 2012, during 12 months, five pitfall traps were operated at each site. On four dates additional hand collecting (sweeping, beating, searching on the ground) was done. This contribution describes the collecting sites and their structures, as far as the latter are important for spiders and carabids. Furthermore, temperature measurements obtained during the investigation are reported and discussed. The results for the spiders and carabids are included in separate contributions.
Theo Blick
added a research item
In the north-western part of the Kellerwald- Edersee National Park the spider fauna was investigated at nine sites. Continuously during 12 months from mid July 2011 to mid July 2012, five pitfall traps were operated at each site. On four dates additional hand collecting (sweeping, beating, searching on the ground) was done. A total of 9371 spiders was trapped. 6631 adults and 381 juveniles were determined to species level. 231 species of 23 spider families were recorded – an exceptionally high number of species for such an investigation. 200 species were in the pitfall traps. The linyphiids was the most species rich family with the highest number of specimens. At each site between 43 and 118 species were recorded. Two forest edges were the richest, with 118 and 112 species. 17 species which are rare or very rare in Germany were recorded. 9 species are evaluated as remarkable, being those which are at least rare and are listed in the German Red Data Book. These are discussed separately and their German records are presented on maps: eight linyphiids (Agyneta equestris, Bathyphantes similis, Glyphesis servulus, Improphantes nitidus, Kratochviliella bicapitata, Trichoncus saxicola, Trichoncyboides simoni, Typhochrestus simoni) and one gnaphosid (Drassodex lesserti). At the sites at the Daudenberg the highest number of remarkable species was recorded, especially on the forested cliffs. For some of the species the Kellerwald is the northernmost known locality. The total number of spider species known from the National Park Kellerwald- Edersee rose with this investigation to 271.
Theo Blick
added a research item
The inventory of the spider fauna of the Kellerwald-Edersee National Park (northern Hesse, Germany) is based on four types of zoological research. (a) The investigation of the Strict Forest Reserve “Locheiche”, which is part of the National Park, follows the standards established for zoological research in other Strict Forest Reserves in Hesse. A total of 96 species were recorded in a comparison of a regular design (100x100m) versus an “expert design” (respectively 54 and 91 species). (b) Specific trapping and collecting in selected habitats (e.g. forest borders, wet places, rocky sites, heather, xerothermic slopes) over 3 years in 27 sites, which resulted in 314 species. (c) Analysis of collections made during the survey and mapping of springs: 109 species. (d) Analysis of by-catches of other research projects, e.g. from Malaise traps: 80 species. Up to now 340 spider species are known from the National Park (48% of the species of Hesse, 34% of Germany) – at least 400 can be expected. A correspondence analysis of the data from the Kellerwald shows, on the one hand, the broad spectrum of the hitherto investigated habitats and, on the other hand, gaps in the knowledge of fresh and moderately shaded sites. Furthermore, the fauna of trees and trunks can be expected to yield additions to the species list. Comparable numbers are only known from two other German National Parks: Bavarian Forest (308 species) and Lower Oder Valley (343 species).
Theo Blick
added 2 research items
The spider fauna of the Rabenstein, in the eastern part of the Kellerwald-Edersee National Park, was investigated by sampling at nine sites. Five pitfall traps were operated continuously at each site for 12 months from mid September 2012 to mid September 2013. On four dates additional hand collecting (sweeping, beating, searching on the ground) was done. A total of 11806 spiders was trapped. 6504 adults and 683 juveniles were determined to species level. 202 species of 24 spider families were recorded – a high number of species for such an investigation. 174 species were represented in the pitfall traps. The Linyphiidae was the most species rich family with the highest number of specimens. At each site between 52 and 107 species were recorded. The richest sites were a forest edge (107 species) and a heathland (83 species). Eleven species which are rare or very rare or red listed in Germany were recorded. Five species are evaluated as remarkable, being those which are at least rare and are listed in the German Red Data Book. These are discussed separately: three linyphiids (Agyneta equestris, Improphantes nitidus, Theonina cornix), one gnaphosid (Drassodex lesserti) and one thomisid (Ozyptila brevipes). The German records of two of them are presented on maps. Four of these remarkable species inhabit a wooded cliff and a neglected grassland on shallow soil. For some of the species the Kellerwald is the northernmost known locality. This investigation raised the total number of spider species known from the National Park Kellerwald-Edersee from 271 to 304.
In the second year of the inventory of the spider and carabid fauna of the Kellerwald-Edersee National Park the “Rabenstein” in the eastern part of the national park was investigated at nine sites. From mid September 2012 to mid September 2013, during 12 months, five pitfall traps were operated at each site. On four dates additional hand collecting (sweeping, beating, searching on the ground) was done. This contribution describes the collecting sites and their structures, as far as the latter are important for spiders and carabids. Furthermore, temperature measurements obtained during the investigation are reported and discussed. The results for the spiders and carabids are included in separate contributions (Blick 2015, Fritze 2015).
Michael-Andreas Fritze
added a research item
Investigation of the carabid fauna (Coleoptera: Carabidae) in north-western parts of the Kellerwald- Edersee National Park (Germany, Hesse) in 2011/2012. In the north-western part of the Kellerwald-Edersee National Park the carabid fauna was investigated at ten sites. From mid July 2011 to mid July 2012, continuously for 12 months, five pitfall traps were operated at each of nine sites. On four dates additional hand collecting (searching on the ground and on the bark) was done. The tenth site was investigated exclusively using this method. A total of 2818 carabid beetles was trapped. 89 species were recorded; at each site between 4 and 30 species. The floodplain forests in the area Untere Banfe and below the Daudenberg were the richest with respectively 28 and 30 species. 8 species are listed in the Red Data Book of Germany and/or Hesse. Agonum piceum and Agonum versutum, both of which are endangered and very rare in Hesse, were the most important finds. The total number of carabid species known in the Kellerwald- Edersee National Park rose to 106. 40 species were recorded for the first time in the National Park.
Michael-Andreas Fritze
added a research item
The carabid beetle fauna of the Rabenstein, in the eastern part of the National Park Kellerwald- Edersee, was investigated by sampling at nine sites. Five pitfall traps were operated continuously at each site for 12 months from mid September 2012 to mid September 2013. On four dates additional hand collecting, mainly by searching on the ground, was done. A total of 1430 carabids were trapped and determined to species level. 59 species were represented in the investigation. At each site between 2 and 23 species were recorded. The richest sites were a forest edge, two different types of wetland and a neglected grassland. Seven species which are red listed in Germany were recorded. Amara littorea and Panagaeus cruxmajor, both very rare and endangered in Hesse, are the most remarkable records. This investigation raised the total number of carabid beetle species known from the National Park Kellerwald-Edersee from 108 to 119.
Theo Blick
added an update
Laufkäfer (Insecta: Coleoptera: Carabidae) am Rabenstein im Nationalpark Kellerwald-Edersee (Hessen) 2012/2013. [Carabid beetles (Insecta: Coleoptera: Carbidae) of the Rabenstein in the Kellerwald-Edersee National Park (Germany, Hesse) in 2012/2013]
 
Theo Blick
added a project goal
Callistus - Gemeinschaft für Zoologische & Ökologische Untersuchungen [association for zoological and ecological research] is involved in the zoological inventory of the Kellerwald-Edersee National Park. We are trapping and collecting in selected habitats and reached meanwhile totals of 340 spider species (Araneae), 138 carabid species (Coleoptera: Carabidae), 19 havestmen species (Opiliones) and 10 pseudoscorpion (Pseudoscorpiones) species. Numerous Red Data List species, rare species and species at the border of their known distribution are recorded.