Species Protection Program in Gravel Pits in Germany
Transcription
Species Protection Program in Gravel Pits in Germany
Species Protection Program Sand Martin (Riperia riparia) in the sand pits and gravel pits of HeidelbergCement AG/ Sector Aggregates Location Gravel pits (Germany) Operator HeidelbergCement AG/ Sector Aggregates Mineral Type Sand, sand-lime brick and gravel Habitat(s) created Steep faces for Sand Martin breeding colonies. Size 42 sand pits and gravel pits (Germany) Background The Sand Martin is a regularly breeding bird in the gravel pits and sand pits of HeidelbergCement AG. For their breeding areas they prefer the freshly uncompleted steep faces of sandy-clayey material. Before the straightening of the most rivers in Central Europe there was enough natural breeding space for the Sand Martin, because they used the bank demolitions after every high-water. With the flood control a large part of the dynamism has got lost. Today the animals breed only in exploitation sites of the stones-earth-industry in Germany. Here the forming strength is no more the high water, but the excavator shovel. So the continual gravel and sand exploitation became the survival guarantee of these birds. The Sand Martin is on the red list of Germany and is protected according to the federal nature conservation act as especially protected. Generally there are a peaceful coexistence between persons and Sand Martins in the exploitation sites, but in the individual cases it can come to problems, especially when the 1 animals breed in the steep faces which must be mine. In spite of an existing permission, the protective status of the Sand Martin prevents the mining until the end of the breeding season. On this account HeidelbergCement starts the “Species Protection Program Sand Martin” in 2007. Project Description The purpose of the project is to recognize the possible conflicts in forefront, between the interests of the exploitation and the protection of the species and nature conservation by management measures and care measures. Therefore a continuous “Species Protection Program” was developed plus management plan (see figure 1 below). The basis of the project is the mapping of the breeding holes in the exploitation sites, the assessment of the conflict potentials and the elaboration of control measures. Figure1: Species Protection Program Sand Martin Artenschutzprogramm Ist-Zustand Managementplan Monitoring Getrennte Erfassung für jede Abbaustätte Zielkonflikte mit zukünftigem Abbau, Zweijahresplanung Jährliche Bestandskontrolle, Datenverwaltung HTC Geschätzte Anzahl Brutröhren und -paare Schaffung Alternative Brutplätze Konflikte zeitnah melden Grobe Darstellung in einem Lageplan Zusammenarbeit mit Dritten organisieren Jahresbericht erstellen „Was läuft gut?“ Was kann verbessert werden?“ Ansprechpartner: Behörden, Verbände, Privatpersonen Habitat creation details In the breeding season between June and July all breeding holes are counted in the exploitation sites and shown in a map (see figure 2 below). During the winter months the plant managers have to plan her mining for the coming months. If there are attractive steep faces for the Sand Martins which must be mine, the workers of the plant must regards and recon tours the steep faces before the animals return. Also they must create evasive accommodations for the birds, e.g. unused steep faces. These are released as far as possible radically from bushes and plant. Additionally they can pile 2 up a waste dumps with sandy-clayey top soil material. The controls of the agreed measures will be once a year. Measures: • Annual and continuance control of the breeding areas, breeding holes, coordination of the mining and definition of the measures for the next breeding seasons. • No mining as well as the continuation of work in excavation pits at the breeding season; if possibly secure the breeding area. • Planning and realization of care measures: cutting of the steep faces after every breeding season with spavins or an excavator, so the Sand Martin can breed at the same place again next year. • No back filling of the sand pits and gravel pits. • Creation of top soil waste dumps. • Available water surfaces in breeding areas should be kept by tourist activities, because they are important food habitats. 3 Figure 2: Results of the Sand Martin mapping 2007 and 2008 Langhagen Sermuth Demmin Pinnow hof Babenhausen Hohen Wangelin Perniek Waghäusel-Wiesental Erw eiterung Gerlinde Leupahn Gotha Nord Merseburg Forchheim Zirkow Niederlehme Mitteldonk Lindw erder Strachtizt Durmersheim Amberg Achim Hagenbach Hallalit Penig Dettelbach Babst Andresen Büschow Burgstall Stolzenau Otterstadt Flemmingen Kronau Wörth Windheim Wietersheim Kaper Rheinberg/Gerlinde Kamp-Lintfort/R. Flemmingen Süd Niedersteinbach Müncheberg breeding holes 2008 breeding holes 2007 0 30 60 90 120 150 180 210 240 270 300 330 360 390 420 450 480 510 540 570 600 630 660 690 720 750 780 n=42 num bers of breeding holes Key species Sand Martin (Riparia riparia) Characteristics Sand Martin: • • • • • • • smallest European swallow colonial bird and migratory bird Germany: April/May to August/September hibernation: October to April: Central Africa and North-west Africa age: 9 -10 years body structure: - size: about 12 cm - both genders: same look - upper side: dull gray-brown to earth-brown - chin, throat, cervical sides, underside: white with brown wristband Living space: - steep face of gravel pits or sand pits 4 - upper layers of the rock faces - rare: glay pits or loess pits - conditions: - “ soft material” - all walls which are higher than 1.50 m - free landing possibilities - not too high vegetation under and upper the breeding area Public benefits The Sand Martin is a very popular kind of bird with a big nature conservation value; because the bird is on the red list Germany and counts according to the federal nature conservation law as especially protected. Within the scope of publications, signs, excursions, day of the open door etc. HeidelbergCement can demonstrate to the interested general public his contribution of nature conservation. Contact Details Martin Wollschläger Project Manager Tina Gölzer Project Operator Heidelberg Sand und Kies GmbH, Team Geology and Raw Materials; Germany Heidelberg Technology Center GmbH, Germany [email protected] www.heidelbergcement.com [email protected] www.heidelbergcement.com 5