Rock ptarmigan road transect survey

Ólafur Karl Nielsen1, Noemie Boulanger-Lapointe2, Kjartan Birgisson3

1 Icleandic Institution on natural history, Garðabær, Iceland; 2 University of Iceland, , Iceland; 3 

Corresponding author(s): Ólafur Karl Nielsen (olafur.k.nielsen@ni.is), Noemie Boulanger-Lapointe (nbl@hi.is)

Received {date}; Revised {date}; Accepted {date}; Published {date}

Citation: Combination of authors, year of data paper publication (in parentheses), Title, Journal Name, Volume, Issue number (in parentheses), and doi of the data paper.

Resource Citation

Nielsen Ó K (2022): Rock ptarmigan road transect survey. v1.3. Icelandic Institute of Natural History. Dataset/Occurrence. https://ipt.ni.is/ipt/resource?r=rock_ptarmigan_road_transect_survey&v=1.3

Abstract

Since 1981, the Icelandic Institute of Natural History has surveyed rock ptarmigan using a distance sampling methodology (Buckland et al., 2001) along road transects located in the lowlands to derive population indices (Icelandic Institute of Natural History, 2021a). Transects are monitored in late April or early May, which corresponds to the period when birds are expected to have moved to the breeding grounds, where they will stay until the end of August (Gardarsson, 1988). During sampling, observers recorded the location on the transect when a bird was observed as well as the distance from the transect to the bird and whether it was located on the left or the right side of the transect (Ferrarini, 2022). In 2011, data from 2005 to 2010 were processed and assigned a geographic position for each bird sighting, i.e., using the distance to the individual and direction of the observation, geographic records were moved from the transect to the estimated location of the animal.

Keywords: Occurrence, Rock ptarmigan, Lagopus muta, Rjúpa, Observation

Project details

Project title: Rock ptarmigan road transect survey (2005-2010)
Personnel: Ólafur Karl Nielsen, Noémie Boulanger-Lapointe

Data published through GBIF: https://ipt.ni.is/ipt/resource?r=rock_ptarmigan_road_transect_survey

Taxonomic coverage

Taxonomic ranks
Species: Lagopus muta
Subspecies: Lagopus muta islandorum
Common names: Rock ptarmigan, Rock ptarmigan

Spatial coverage

General spatial coverage: Iceland mainland
Coordinates: 62°40'26.4''N and 66°59'56.4''N Latitude; 24°57'39.6''W and 13°21'32.4''W Longitude 

Temporal coverage: January 1, 2005 - December 31, 2010

Methods

Method step description: See Ferrarini, M. 2022. Population index for the rock ptarmigan (lagopus muta) in Iceland: Analysis of road transect data. M.Sc. thesis, University of Iceland, Reykjavik.
Study extent description: Iceland mainland
Sampling description: Since 1981, the Icelandic Institute of Natural History has surveyed rock ptarmigan using a distance sampling methodology (Buckland et al., 2001) along road transects located in the lowlands to derive population indices (Icelandic Institute of Natural History, 2021a). Transects are monitored in late April or early May, which corresponds to the period when birds are expected to have moved to the breeding grounds, where they will stay until the end of August (Gardarsson, 1988). During sampling, observers recorded the location on the transect when a bird was observed as well as the distance from the transect to the bird and whether it was located on the left or the right side of the transect (Ferrarini, 2022). In 2011, data from 2005 to 2010 were processed and assigned a geographic position for each bird sighting, i.e., using the distance to the individual and direction of the observation, geographic records were moved from the transect to the estimated location of the animal.

Datasets

Dataset description
Object name: Darwin Core Archive Rock ptarmigan road transect survey
Character encoding: UTF-8
Format name: Darwin Core Archive format
Format version: 1.0
Distribution: https://ipt.ni.is/ipt/archive.do?r=rock_ptarmigan_road_transect_survey
Publication date of data: 2022-06-28
Language: English
Licences of use: Creative Commons Attribution (CC-BY) 4.0 License

Metadata language: English
Date of metadata creation: 2022-05-03
Hierarchy level: Dataset