David Boertmann
Biographic Data
| ID | 5593368 |
|---|---|
| NAME | David Boertmann |
| GIVEN NAMES | David |
| FAMILY NAME | Boertmann |
| SIGNATURE | BOERTMANN D |
| AFFILIATIONS | Aarhus University |
| ORCID | 0000-0002-5620-7356 |
| VERIFIED | Yes |
| TOTAL WORKS | 7 |
| TOTAL CITATIONS | 1 |
| WORKS AS AUTHOR | 7 |
| WORKS AS EDITOR | 0 |
| FIRST PUBLICATION YEAR | 1999 |
| LATEST PUBLICATION YEAR | 2020 |
| H-INDEX | 1 |
Seabird Breeding Colonies in East and North Greenland
This paper presents the results of a number of aircraft- and boat-based surveys for seabird breeding colonies in East and North Greenland carried out in the period 2003 to 2018 and gives the first comprehensive overview of the distribution and size of the seabird breeding colonies in this remote and mainly uninhabited region. Seventeen seabird species breed in approximately 800 sites distributed very unevenly along the coasts, with high concentra…
The Status of Glaucous Gulls Larus hyperboreus in the Circumpolar Arctic
The entire world population of the Glaucous Gull Larus hyperboreus breeds in the circumpolar Arctic. Some local populations appear to be declining significanty. In this paper, we summarize the current state of knowledge on Glaucous Gull populations and trends. The total Arctic population is estimated at approximately 171 000 breeding pairs (> 342 000 breeding individuals) distributed among at least 2700 colonies (many not documented). Population …
A bowhead whale calf observed in northeast Greenland waters
A bowhead whale mother and calf pair was recorded off the northeast Greenland coast in July 2009. This is apparently the first calf observed in the Spitsbergen stock of the bowhead whale since 1981
Ivory gulls breeding on ice
A breeding colony of ivory gulls was discovered on an ice floe in northeast Greenland in August 2008. The ice floe resembled nearby islands in that it was covered with a thick layer of gravely moraine, and furthermore its position was fixed throughout most of the breeding season as the surrounding first year ice only broke up in mid August when most of the gull chicks had fledged
Ross's Gulls ( Rhodostethia rosea ) Breeding in Greenland
This review summarizes breeding records of Ross’s gull in Greenland with special emphasis on the period between 1979 and 2007. The review comprises both previously published records (including some published only in Danish) and unpublished reports and breeding records from 2004 and 2006. The majority of the Greenland breeding records fall into two geographically isolated areas that differ in habitat and climate: the Disko Bay area in West Greenla…
The Lesser Black-backed Gull, Larus fuscus , in Greenland
The lesser black-backed gull (Larus fuscus) became a frequent visitor in Greenland in the mid-1980s. Breeding was confirmed in 1990, and today the species is a common breeder in at least two areas in Southwest Greenland between 60° and 66° N. The current breeding population is estimated at more than 700 pairs. Even though the colonization of Greenland by this species may be primarily the result of an increasing source population in Northwest Euro…
Distribution, Abundance and Reaction to Aerial Surveys of Post-breeding King Eiders ( Somateria spectabilis ) in Western Greenland
Moulting and post-breeding king eiders in western Greenland were surveyed in late August and early September of 1993, 1994, and 1995. We counted all eiders observed during fixed-winged aircraft flights along coastlines and offshore transects. The coastline in the survey area is roughly 13 400 km long, and our flightlines totalled approximately 16 500 km. The areas optimal for the birds were covered fully several times; in less suitable areas, onl…
Ivory gulls breeding on ice
A breeding colony of ivory gulls was discovered on an ice floe in northeast Greenland in August 2008. The ice floe resembled nearby islands in that it was covered with a thick layer of gravely moraine, and furthermore its position was fixed throughout most of the breeding season as the surrounding first year ice only broke up in mid August when most of the gull chicks had fledged
Distribution, Abundance and Reaction to Aerial Surveys of Post-breeding King Eiders ( Somateria spectabilis ) in Western Greenland
Moulting and post-breeding king eiders in western Greenland were surveyed in late August and early September of 1993, 1994, and 1995. We counted all eiders observed during fixed-winged aircraft flights along coastlines and offshore transects. The coastline in the survey area is roughly 13 400 km long, and our flightlines totalled approximately 16 500 km. The areas optimal for the birds were covered fully several times; in less suitable areas, onl…
Ross's Gulls ( Rhodostethia rosea ) Breeding in Greenland
This review summarizes breeding records of Ross’s gull in Greenland with special emphasis on the period between 1979 and 2007. The review comprises both previously published records (including some published only in Danish) and unpublished reports and breeding records from 2004 and 2006. The majority of the Greenland breeding records fall into two geographically isolated areas that differ in habitat and climate: the Disko Bay area in West Greenla…
The Lesser Black-backed Gull, Larus fuscus , in Greenland
The lesser black-backed gull (Larus fuscus) became a frequent visitor in Greenland in the mid-1980s. Breeding was confirmed in 1990, and today the species is a common breeder in at least two areas in Southwest Greenland between 60° and 66° N. The current breeding population is estimated at more than 700 pairs. Even though the colonization of Greenland by this species may be primarily the result of an increasing source population in Northwest Euro…
A bowhead whale calf observed in northeast Greenland waters
A bowhead whale mother and calf pair was recorded off the northeast Greenland coast in July 2009. This is apparently the first calf observed in the Spitsbergen stock of the bowhead whale since 1981
Ivory gulls breeding on ice
A breeding colony of ivory gulls was discovered on an ice floe in northeast Greenland in August 2008. The ice floe resembled nearby islands in that it was covered with a thick layer of gravely moraine, and furthermore its position was fixed throughout most of the breeding season as the surrounding first year ice only broke up in mid August when most of the gull chicks had fledged
The Status of Glaucous Gulls Larus hyperboreus in the Circumpolar Arctic
The entire world population of the Glaucous Gull Larus hyperboreus breeds in the circumpolar Arctic. Some local populations appear to be declining significanty. In this paper, we summarize the current state of knowledge on Glaucous Gull populations and trends. The total Arctic population is estimated at approximately 171 000 breeding pairs (> 342 000 breeding individuals) distributed among at least 2700 colonies (many not documented). Population …
Seabird Breeding Colonies in East and North Greenland
This paper presents the results of a number of aircraft- and boat-based surveys for seabird breeding colonies in East and North Greenland carried out in the period 2003 to 2018 and gives the first comprehensive overview of the distribution and size of the seabird breeding colonies in this remote and mainly uninhabited region. Seventeen seabird species breed in approximately 800 sites distributed very unevenly along the coasts, with high concentra…
Biology (7 works) · Geography (7 works) · Ecology (6 works) · Ecology (6 works) · Oceanography (5 works) · Oceanography (5 works) · Physical geography (5 works) · Arctic (4 works) · Fishery (4 works) · Geology (4 works)