Northwestern Arctic Alaska beaver dam locations, northern Baldwin Peninsula region, 2010-2019
Arctic landscapes are in a state of transition due to changes in climate occurring during both the summer and winter seasons. Scattered observations indicate that beavers (Castor canadensis) have moved from the forest into tundra areas during the last 20 years, likely in response to broader physical...
Main Authors: | , , , , , |
---|---|
Format: | Dataset |
Language: | unknown |
Published: |
Arctic Data Center
|
Subjects: | |
Online Access: | https://doi.org/10.18739/A2HQ3RZ8Q |
id |
dataone:doi:10.18739/A2HQ3RZ8Q |
---|---|
record_format |
openpolar |
spelling |
dataone:doi:10.18739/A2HQ3RZ8Q 2023-11-08T14:14:16+01:00 Northwestern Arctic Alaska beaver dam locations, northern Baldwin Peninsula region, 2010-2019 Benjamin Jones Kenneth Tape Jason Clark Ingmar Nitze Guido Grosse Jeff Disbrow 430 square kilometer region encompassing the northern Baldwin Peninsula, Alaska ENVELOPE(-162.65875,-161.96307,66.94681,66.688545) BEGINDATE: 2010-01-01T00:00:00Z ENDDATE: 2019-01-01T00:00:00Z 2020-04-20T16:25:43.1Z https://doi.org/10.18739/A2HQ3RZ8Q unknown Arctic Data Center beavers beaver dams arctic tundra Dataset dataone:urn:node:ARCTIC https://doi.org/10.18739/A2HQ3RZ8Q 2023-11-08T13:46:03Z Arctic landscapes are in a state of transition due to changes in climate occurring during both the summer and winter seasons. Scattered observations indicate that beavers (Castor canadensis) have moved from the forest into tundra areas during the last 20 years, likely in response to broader physical and ecosystem changes occurring in Arctic and Boreal regions. The implications of beaver inhabitation in the Arctic and Boreal are unique relative to other ecosystems due to the presence of permafrost and its vulnerability associated with beaver dams and inundation. Our study specifically examines the role of beavers in controlling surface water dynamics and related thermokarst development in low Arctic tundra regions. We mapped the number of beaver dams visible in sub-meter resolution satellite images acquired between 2002 and 2019 for a 100 square kilometer study area (12 years of imagery) near Kotzebue, Alaska and a 430 square kilometer study area (3 years of imagery) encompassing the entire northern Baldwin Peninsula, Alaska. We show that during the last two decades beaver-driven ecosystem engineering is responsible for the majority of surface water area changes and inferred thermokarst development in the study area. This has implications for interpreting surface water area changes and thermokarst dynamics in other Arctic and Boreal regions that may also result from beaver dam building activities. This geospatial dataset provides the location of beaver dams in a 430 square kilometer study area encompassing the entire northern Baldwin Peninsula, Alaska. The location of beaver dams were manually digitized using sub-meter resolution satellite imagery mosaics for the years 2010, 2013, and 2019. Dataset Arctic permafrost Thermokarst Tundra Alaska Arctic Data Center (via DataONE) Arctic Baldwin ENVELOPE(163.300,163.300,-72.250,-72.250) ENVELOPE(-162.65875,-161.96307,66.94681,66.688545) |
institution |
Open Polar |
collection |
Arctic Data Center (via DataONE) |
op_collection_id |
dataone:urn:node:ARCTIC |
language |
unknown |
topic |
beavers beaver dams arctic tundra |
spellingShingle |
beavers beaver dams arctic tundra Benjamin Jones Kenneth Tape Jason Clark Ingmar Nitze Guido Grosse Jeff Disbrow Northwestern Arctic Alaska beaver dam locations, northern Baldwin Peninsula region, 2010-2019 |
topic_facet |
beavers beaver dams arctic tundra |
description |
Arctic landscapes are in a state of transition due to changes in climate occurring during both the summer and winter seasons. Scattered observations indicate that beavers (Castor canadensis) have moved from the forest into tundra areas during the last 20 years, likely in response to broader physical and ecosystem changes occurring in Arctic and Boreal regions. The implications of beaver inhabitation in the Arctic and Boreal are unique relative to other ecosystems due to the presence of permafrost and its vulnerability associated with beaver dams and inundation. Our study specifically examines the role of beavers in controlling surface water dynamics and related thermokarst development in low Arctic tundra regions. We mapped the number of beaver dams visible in sub-meter resolution satellite images acquired between 2002 and 2019 for a 100 square kilometer study area (12 years of imagery) near Kotzebue, Alaska and a 430 square kilometer study area (3 years of imagery) encompassing the entire northern Baldwin Peninsula, Alaska. We show that during the last two decades beaver-driven ecosystem engineering is responsible for the majority of surface water area changes and inferred thermokarst development in the study area. This has implications for interpreting surface water area changes and thermokarst dynamics in other Arctic and Boreal regions that may also result from beaver dam building activities. This geospatial dataset provides the location of beaver dams in a 430 square kilometer study area encompassing the entire northern Baldwin Peninsula, Alaska. The location of beaver dams were manually digitized using sub-meter resolution satellite imagery mosaics for the years 2010, 2013, and 2019. |
format |
Dataset |
author |
Benjamin Jones Kenneth Tape Jason Clark Ingmar Nitze Guido Grosse Jeff Disbrow |
author_facet |
Benjamin Jones Kenneth Tape Jason Clark Ingmar Nitze Guido Grosse Jeff Disbrow |
author_sort |
Benjamin Jones |
title |
Northwestern Arctic Alaska beaver dam locations, northern Baldwin Peninsula region, 2010-2019 |
title_short |
Northwestern Arctic Alaska beaver dam locations, northern Baldwin Peninsula region, 2010-2019 |
title_full |
Northwestern Arctic Alaska beaver dam locations, northern Baldwin Peninsula region, 2010-2019 |
title_fullStr |
Northwestern Arctic Alaska beaver dam locations, northern Baldwin Peninsula region, 2010-2019 |
title_full_unstemmed |
Northwestern Arctic Alaska beaver dam locations, northern Baldwin Peninsula region, 2010-2019 |
title_sort |
northwestern arctic alaska beaver dam locations, northern baldwin peninsula region, 2010-2019 |
publisher |
Arctic Data Center |
publishDate |
|
url |
https://doi.org/10.18739/A2HQ3RZ8Q |
op_coverage |
430 square kilometer region encompassing the northern Baldwin Peninsula, Alaska ENVELOPE(-162.65875,-161.96307,66.94681,66.688545) BEGINDATE: 2010-01-01T00:00:00Z ENDDATE: 2019-01-01T00:00:00Z |
long_lat |
ENVELOPE(163.300,163.300,-72.250,-72.250) ENVELOPE(-162.65875,-161.96307,66.94681,66.688545) |
geographic |
Arctic Baldwin |
geographic_facet |
Arctic Baldwin |
genre |
Arctic permafrost Thermokarst Tundra Alaska |
genre_facet |
Arctic permafrost Thermokarst Tundra Alaska |
op_doi |
https://doi.org/10.18739/A2HQ3RZ8Q |
_version_ |
1782012694702850048 |