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Presentation_Nehls - DIVER · Project HELBIRD (FTZ Büsum, Stefan Garthe) ... windfarm planning Martin Grimm Martin Grimm . DIVER – project background . DIVER – …

May 02, 2018

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Page 1: Presentation_Nehls - DIVER · Project HELBIRD (FTZ Büsum, Stefan Garthe) ... windfarm planning Martin Grimm Martin Grimm . DIVER – project background . DIVER – …
Page 2: Presentation_Nehls - DIVER · Project HELBIRD (FTZ Büsum, Stefan Garthe) ... windfarm planning Martin Grimm Martin Grimm . DIVER – project background . DIVER – …

DIVER – Satellite telemetry of Divers (Gaviidae)

Page 3: Presentation_Nehls - DIVER · Project HELBIRD (FTZ Büsum, Stefan Garthe) ... windfarm planning Martin Grimm Martin Grimm . DIVER – project background . DIVER – …

DIVER – project structure

Project partners:

Ramūnas Žydelis

Stefan Heinänen

Georg Nehls

Monika Dorsch

Petra Quillfeldt

Birgit Kleinschmidt AG Verhaltensökologie

und Ökophysiologie

in collaboration with:

Project HELBIRD

(FTZ Büsum, Stefan Garthe)

01.11.2014 – 30.04.2018

Page 4: Presentation_Nehls - DIVER · Project HELBIRD (FTZ Büsum, Stefan Garthe) ... windfarm planning Martin Grimm Martin Grimm . DIVER – project background . DIVER – …

DIVER – project background

• High spring abundance of red-throated

diver in German Bight

• Protected species (annex 1 BD)

• Sensitive to disturbance

• Diver staging area is of interest for

windfarm planning

Martin Grimm

Martin Grimm

Page 5: Presentation_Nehls - DIVER · Project HELBIRD (FTZ Büsum, Stefan Garthe) ... windfarm planning Martin Grimm Martin Grimm . DIVER – project background . DIVER – …

DIVER – project background

Page 6: Presentation_Nehls - DIVER · Project HELBIRD (FTZ Büsum, Stefan Garthe) ... windfarm planning Martin Grimm Martin Grimm . DIVER – project background . DIVER – …

DIVER – satellite tracking as main method

• Tagging of 45 red-throated divers

• transmitters: Telonics IMPTAV-Modelle (Argos)

• Duty cycle: 1x per day

• advantages:

No recapture required

Up to 2 year tracking

• Limitations: coarse resolution, only coordinates

www,telonics.com

Page 7: Presentation_Nehls - DIVER · Project HELBIRD (FTZ Büsum, Stefan Garthe) ... windfarm planning Martin Grimm Martin Grimm . DIVER – project background . DIVER – …

DIVER – catching and tagging

Three field seasons 2015 – 2017:

(1) spring2015: 16 RTDs (13 ♀, 3 ♂)

(2) Spring 2016: 20 RTDs(17 ♀, 3 ♂)

(3) Spring 2017: still to come

Page 8: Presentation_Nehls - DIVER · Project HELBIRD (FTZ Büsum, Stefan Garthe) ... windfarm planning Martin Grimm Martin Grimm . DIVER – project background . DIVER – …

Implants by trained vetenerian (Julius Morkunas)

DIVER – tagging

Page 9: Presentation_Nehls - DIVER · Project HELBIRD (FTZ Büsum, Stefan Garthe) ... windfarm planning Martin Grimm Martin Grimm . DIVER – project background . DIVER – …

Release of tagged birds

DIVER – tagging

Page 10: Presentation_Nehls - DIVER · Project HELBIRD (FTZ Büsum, Stefan Garthe) ... windfarm planning Martin Grimm Martin Grimm . DIVER – project background . DIVER – …

DIVER – digital video surveys

Page 11: Presentation_Nehls - DIVER · Project HELBIRD (FTZ Büsum, Stefan Garthe) ... windfarm planning Martin Grimm Martin Grimm . DIVER – project background . DIVER – …

DIVER – deliverable

• Habitat utilization of staging areas

• Displacement by offshore-windfarms

• Home-Ranges

• Site-fidelity

• Origin (breeding areas)

• Migration routes and patterns

• Food choice