GO
en-USnb-NO

Spring-fieldwork in Varanger

Publisert 23.05.2019

In the end of April COAT Varanger conducted its spring-fieldwork. This year the spring-fieldwork consisted of the yearly deployment of sound stations by the ptarmigan module and start-up of monitoring of breeding locations for Gyrfalcon and Ravens.

Telescoping for breeding locations for Gyrfalcon and Ravens in Varanger. Photo: Eivind Flittie Kleiven
Telescoping for breeding locations for Gyrfalcon and Ravens in Varanger. Photo: Eivind Flittie Kleiven

Ptarmigan module: Automatic sound stations

COAT personnel has in the period, 24-26.04.2019 deployed the sound stations for this year’s monitoring in the study area just above Bergebydalen in Nesseby municipality. The sound stations is used for the complementary monitoring of willow and rock ptarmigan in the period when the cocks are territorial, i.e. the breeding part of the population of males, as we also monitor predation risk in the summer and chick production in early autumn. This year’s deployment went reasonably well, even though the spring was well on its way. Because of limited snow and many open creeks, rivers and mires in the lower end of the study area (close to forested areas), one sound station was not deployed.

One of the automatic sound stations in Varanger. Photo: John-André Henden

 

Monitoring of breeding locations for Gyrfalcon and Ravens

Another team of COAT personnel spent the last week of April on the Varanger peninsula to monitor breeding locations of Gyrfalcon and Ravens in and around the study areas in Vestre Jakobselv and Komagdalen. Following two years of mapping of both new/recent and historical breeding localities of Gyrfalcon on the Varanger Peninsula, the ptarmigan module have selected 15-20 localities in both the eastern and the western part of the peninsula to represent our two intensive study areas in Vestre Jakobselv and Komagdalen, respectively. They found four breeding pairs of Gyrfalcons and eight breeding pairs of ravens. The Gyrfalcon is known to have cyclic population sizes related to the density of their preferred prey, ptarmigans. However since this is the first year this monitoring is conducted we cannot say if it is a good or a bad year. Regarding ravens little is known about yearly variations in population size, therefore it will be very interesting to follow this monitoring in the years to come.

More news

Aug28 Deployment of CO2 sensors
Created by Leif Einar Støvern on 8/28/2019 10:24:00 AM

As a part of the project COAT-Tools we are collaborating with the department of computer science he...
Read More..

Aug02 Dispersal movement of a COAT-instrumented Arctic fox went viral
Created by Leif Einar Støvern on 8/2/2019 1:24:00 AM

Climate change is expected to impact area use and dispersal movements in Arctic animals, and this i...
Read More..

Jul26 COAT researchers in lead of pan-Arctic assessments of status of lemming and ptarmigan populations
Created by Leif Einar Støvern on 7/26/2019 2:24:00 AM

The working groups of the Arctic Council conduct periodic assessments of state of the Arctic enviro...
Read More..

Jul01 Declining tundra bird populations linked to Arctic greening
Created by Leif Einar Støvern on 7/1/2019 5:24:00 AM

Many arctic bird populations have declined substantially during the last decades. Preliminary analy...
Read More..

May23 Spring-fieldwork in Varanger
Created by Leif Einar Støvern on 5/23/2019 11:24:00 AM

In the end of April COAT Varanger conducted its spring-fieldwork. This year the spring-fieldwork co...
Read More..

May03 Winter fieldwork in Varanger, Finnmark and Svalbard
Created by Leif Einar Støvern on 5/3/2019 3:24:00 AM

Several COAT modules both in Varnger, Finnmark and in Svalbard have carried out winter fieldwork in...
Read More..

Dec19 COAT CASE STORY
Created by Leif Einar Støvern on 12/19/2018 9:24:00 AM

NEW! COAT CASE STORIES are short popular handouts from COAT. This second COAT CASE STORY about the ...
Read More..

Dec17 An uncertain future for the mountain birch forest
Created by Leif Einar Støvern on 12/17/2018 9:58:34 AM

Outbreaks by geometrid moths have caused extensive damage to mountain birch forest in northern Scan...
Read More..

Nov19 First recording of a breeding introduced arctic fox on Varanger Peninsula
Created by Leif Einar Støvern on 11/19/2018 11:13:04 AM

Screening of the photos from trail cameras has just revealed that one arctic fox litter was born on...
Read More..

Nov06 Weather stations up and running!
Created by Eeva Soininen on 11/6/2018 2:22:28 PM

We proudly announce that the first three COAT weather stations at the Varanger peninsula are now in...
Read More..