Tenders Are Invited For Environmental Services-Covering Of The Influence Of Invasive Predator Species On The Occurrence Of Particularly And Strictly Protected Amphibian Species Between Dessau-Roßlau And Wartenburg

Environmental Services-Covering Of The Influence Of Invasive Predator Species On The Occurrence Of Particularly And Strictly Protected Amphibian Species Between Dessau-Roßlau And Wartenburg. The Aim Of The Project Is To Record The Influence Of Invasive Predator Species On The Occurrence Of Particularly And Strictly Protected Amphibian Species In The Northeast Of The State Of Saxony-Anhalt Between The Towns Of Dessau-Roßlau And Wartenburg. The Project Area Provided For The Investigations (Hereinafter Below The Ug) Is Located In The East Of Saxony-Anhalt Between The Villages Of Dessau-Roßlau In The West And Wartenburg In The East. It Essentially Comprises The Floodplain South Of The Elbe And Is Limited In The North By The Course Of The Elbe (See Fig. 1). The Ug Is Located To Larger Parts In The Wittenberg District And Also Includes Parts Of The Independent City Of Dessau-Roßlau In The West. The Ug Comprises A Total Area Of ​​Approx. 318.73 Km2, Which Corresponds To An Area Of ​​Approx. 2.5 Full Measuring Table Leaves (On Average 127.3 Km2/Mtb) (Fig. 1, Tab. 1). The Aim Of The Performance Is To Record The Amphibien Species Group As Well As Their Invasive Main Predators Raccoon And Mink Of As Many Suitable Waters Within The Respective Measuring Table Sheet (Mtb), Whereby Waters With High Potential For Types Of Attachments Ii And Iv Must Be Treated. At Least 3 Inspections Should Be Carried Out For The Recording, With 4 (Contextual) Terrain Days (Each With 8 Mapping Lessons Each) To Be Used For An Inspection Of A Complete Measuring Table Sheet (Corresponds To An Off -Road Day Per Beg. And Mtb Q). There Are 12 Full Terrain Days Per Mtb Available For The Entire Recording (At Least 3 Inspections). In Any Case, These Are To Be Completed - Regardless Of The Number Of Mapped Waters. Between Mid -March/Early April And Mid -May 2026, The Populations Of The Amphibians Are To Be Grasped On The Waters In The Ug. A Corresponding Pre -Selection Of The Most Suitable Waters In The Mtb Can Be Made In Advance On The Basis Of The Cards And As Part Of The First Inspection. The Waters Suitable For Amphibians Must Be Mapped In Total On At Least 3 Appointments At The Main Recurrence Period Of The Relevant Amphibian Species, Whereby The Inspections Must Be Carried Out In A Proportionate At Dusk / At Night. Ideally, The First Inspection In March Takes Place Both During The Day, As Well As At Dusk/At Night (E.G. From 2:00 P.M. To 9:00 P.M.), So That In Daylight A Pre-Selection Of The Most Suitable Waters In The Mtb-Q And In The Evening There Is A New Inspection For The Actual Recording. This Approach Can Also Be Followed For The Further Inspections To Increase The Probability Of Evidence. If The Minimum Number Of Waters Cannot Be Reached Per Mtb (Lack Of Suitable Waters In The Mtb), Alternatively Selected Water In The Neighboring Mtb Of The Respective Loose. During The Inspections, The Usual Standard Methods To Record Amphibians (Spawning Search, Interrogation, Visibility, Lighting Lights Of The Banks Of The Water, Larvae, Possibly Reusenfall Catches) Are To Be Used. All A Are

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