Rolf A Ims
Datos Biográficos
| ID | 1349032 |
|---|---|
| NOMBRE | Rolf A Ims |
| NOMBRES | Rolf A |
| APELLIDO | Ims |
| FIRMA | IMS R A |
| AFILIACIONES | UiT The Arctic University of Norway |
| ORCID | 0000-0002-3687-9753 |
| VERIFICADO | Sí |
| TOTAL DE OBRAS | 25 |
| TOTAL DE CITAS | 98 |
| TOTAL COMO AUTOR | 25 |
| TOTAL COMO EDITOR | 0 |
| PRIMER AÑO DE PUBLICACIÓN | 2004 |
| AÑO MÁS RECIENTE DE PUBLICACIÓN | 2020 |
| ÍNDICE H | 7 |
Documenting lemming population change in the Arctic
Lemmings are a key component of tundra food webs and changes in their dynamics can affect the whole ecosystem. We present a comprehensive overview of lemming monitoring and research activities, and assess recent trends in lemming abundance across the circumpolar Arctic. Since 2000, lemmings have been monitored at 49 sites of which 38 are still active. The sites were not evenly distributed with notably Russia and high Arctic Canada underrepresente…
Circumpolar status of Arctic ptarmigan
Rock ptarmigan (Lagopus muta) and willow ptarmigan (L. lagopus) are Arctic birds with a circumpolar distribution but there is limited knowledge about their status and trends across their circumpolar distribution. Here, we compiled information from 90 ptarmigan study sites from 7 Arctic countries, where almost half of the sites are still monitored. Rock ptarmigan showed an overall negative trend on Iceland and Greenland, while Svalbard and Newfoun…
Ecosystem-based monitoring in the age of rapid climate change and new technologies
Emergent Rainy Winter Warm Spells May Promote Boreal Predator Expansion into the Arctic
Climate change has been characterized as the most serious threat to Arctic biodiversity. In addition to gradual changes such as climate warming, extreme weather events, such as melting temperatures in winter and rain on snow, can have profound consequences for ecosystems. Rain-on-snow events lead to the formation of ice layers in the snow pack, which can restrict access to forage plants and cause crashes of herbivore populations. These direct imp…
Future changes in the supply of goods and services from natural ecosystems
Jansson, R., C. Nilsson, E. C. H. Keskitalo, T. Vlasova, M.-L. Sutinen, J. Moen, F. Chapin III, K. Bråthen, M. Cabeza, T. V. Callaghan, B. Van Oort, H. Dannevig, I. A. Bay-larsen, R. A. Ims, and P. Aspholm. 2015. Future changes in the supply of goods and services from natural ecosystems: prospects for the European north. Ecology and Society 20(3): 32.http://dx.doi.org/10.5751/ES-07607-200332
The Ghost of Development Past
Hausner, V. H., P. Fauchald, T. Tveraa, E. Pedersen, J. Jernsletten, B. Ulvevadet, R. A. Ims, N. G. Yoccoz, and K. Anne Bråthen. 2011. The ghost of development past: the impact of economic security policies on Saami pastoral ecosystems . Ecology and Society 16(3): 4. https://doi.org/10.5751/ES-04193-160304
Ecological Dynamics Across the Arctic Associated with Recent Climate Change
Assessing the Arctic The Arctic is experiencing some of the most rapid climate change currently under way across the globe, but consequent ecological responses have not been widely reported. At the close of the Fourth International Polar Year, Post et al. (p. 1355 ) review observations on ecological impacts in this sensitive region. The widespread changes occurring in terrestrial, freshwater, and marine systems, presage changes at lower latitudes…
Uncertainties and Recommendations
An assessment of the impacts of changes in climate and UV-B radiation on Arctic terrestrial ecosystems, made within the Arctic Climate Impacts Assessment (ACIA), highlighted the profound implications of projected warming in particular for future ecosystem services, biodiversity and feedbacks to climate. However, although our current understanding of ecological processes and changes driven by climate and UV-B is strong in some geographical areas a…
Past Changes in Arctic Terrestrial Ecosystems, Climate and UV Radiation
At the last glacial maximum, vast ice sheets covered many continental areas. The beds of some shallow seas were exposed thereby connecting previously separated landmasses. Although some areas were ice-free and supported a flora and fauna, mean annual temperatures were 10–13°C colder than during the Holocene. Within a few millennia of the glacial maximum, deglaciation started, characterized by a series of climatic fluctuations between about 18 000…
Rationale, Concepts and Approach to the Assessment
Uncertainties and Recommendations
An assessment of the impacts of changes in climate and UV-B radiation on Arctic terrestrial ecosystems, made within the Arctic Climate Impacts Assessment (ACIA), highlighted the profound implications of projected warming in particular for future ecosystem services, biodiversity and feedbacks to climate. However, although our current understanding of ecological processes and changes driven by climate and UV-B is strong in some geographical areas a…
Synthesis of Effects in Four Arctic Subregions
An assessment of impacts on Arctic terrestrial ecosystems has emphasized geographical variability in responses of species and ecosystems to environmental change. This variability is usually associated with north-south gradients in climate, biodiversity, vegetation zones, and ecosystem structure and function. It is clear, however, that significant east-west variability in environment, ecosystem structure and function, environmental history, and re…
Responses to Projected Changes in Climate and UV-B at the Species Level
Environmental manipulation experiments showed that species respond individualistically to each environmental-change variable. The greatest responses of plants were generally to nutrient, particularly nitrogen, addition. Summer warming experiments showed that woody plant responses were dominant and that mosses and lichens became less abundant. Responses to warming were controlled by moisture availability and snow cover. Many invertebrates increase…
Effects on the Structure of Arctic Ecosystems in the Short- and Long-term Perspectives
Historically, the function of Arctic ecosystems in terms of cycles of nutrients and carbon has led to low levels of primary production and exchanges of energy, water and greenhouse gases have led to low local and regional cooling. Sequestration of carbon from atmospheric CO2, in extensive, cold organic soils and the high albedo from low, snow-covered vegetation have had impacts on regional climate. However, many aspects of the functioning of Arct…
Responses to Projected Changes in Climate and UV-B at the Species Level
Environmental manipulation experiments showed that species respond individualistically to each environmental-change variable. The greatest responses of plants were generally to nutrient, particularly nitrogen, addition. Summer warming experiments showed that woody plant responses were dominant and that mosses and lichens became less abundant. Responses to warming were controlled by moisture availability and snow cover. Many invertebrates increase…
Past Changes in Arctic Terrestrial Ecosystems, Climate and UV Radiation
At the last glacial maximum, vast ice sheets covered many continental areas. The beds of some shallow seas were exposed thereby connecting previously separated landmasses. Although some areas were ice-free and supported a flora and fauna, mean annual temperatures were 10-13 degrees C colder than during the Holocene. Within a few millennia of the glacial maximum, deglaciation started, characterized by a series of climatic fluctuations between abou…
Key Findings and Extended Summaries
Effects of Changes in Climate on Landscape and Regional Processes, and Feedbacks to the Climate System
Biological and physical processes in the Arctic system operate at various temporal and spatial scales to impact large-scale feedbacks and interactions with the earth system. There are four main potential feedback mechanisms between the impacts of climate change on the Arctic and the global climate system: albedo, greenhouse gas emissions or uptake by ecosystems, greenhouse gas emissions from methane hydrates, and increased freshwater fluxes that …
Rationale, Concepts and Approach to the Assessment
A general recognition that the Arctic will amplify global climate warming, that UV-B radiation may continue to increase there because of possible delays in the repair of stratospheric ozone, and that the Arctic environment and its peoples are likely to be particularly susceptible to such environmental changes stimulated an international assessment of climate change impacts. The Arctic Climate Impacts Assessment (ACIA) is a four-year study, culmin…
Effects on the Structure of Arctic Ecosystems in the Short- and Long-term Perspectives
Species individualistic responses to warming and increased UV-B radiation are moderated by the responses of neighbors within communities, and trophic interactions within ecosystems. All of these responses lead to changes in ecosystem structure. Experimental manipulation of environmental factors expected to change at high latitudes showed that summer warming of tundra vegetation has generally led to smaller changes than fertilizer addition. Some o…
Effects of Changes in Climate on Landscape and Regional Processes, and Feedbacks to the Climate System
Biological and physical processes in the Arctic system operate at various temporal and spatial scales to impact large-scale feedbacks and interactions with the earth system. There are four main potential feedback mechanisms between the impacts of climate change on the Arctic and the global climate system: albedo, greenhouse gas emissions or uptake by ecosystems, greenhouse gas emissions from methane hydrates, and increased freshwater fluxes that …
Biodiversity, Distributions and Adaptations of Arctic Species in the Context of Environmental Change
The individual of a species is the basic unit which responds to climate and UV-B changes, and it responds over a wide range of time scales. The diversity of animal, plant and microbial species appears to be low in the Arctic, and decreases from the boreal forests to the polar deserts of the extreme North but primitive species are particularly abundant. This latitudinal decline is associated with an increase in super-dominant species that occupy a…
Key Findings and Extended Summaries
TEST 02 - Elsevier's Scopus, the largest abstract and citation database of peer-reviewed literature. Search and access research from the science, technology, medicine, social sciences and arts and humanities fields
Effects on the Function of Arctic Ecosystems in the Short- and Long-term Perspectives
Historically, the function of Arctic ecosystems in terms of cycles of nutrients and carbon has led to low levels of primary production and exchanges of energy, water and greenhouse gases have led to low local and regional cooling. Sequestration of carbon from atmospheric CO2, in extensive, cold organic soils and the high albedo from low, snow-covered vegetation have had impacts on regional climate. However, many aspects of the functioning of Arct…
Synthesis of Effects in Four Arctic Subregions
An assessment of impacts on Arctic terrestrial ecosystems has emphasized geographical variability in responses of species and ecosystems to environmental change. This variability is usually associated with north-south gradients in climate, biodiversity, vegetation zones, and ecosystem structure and function. It is clear, however, that significant east-west variability in environment, ecosystem structure and function, environmental history, and re…
Biodiversity, Distributions and Adaptations of Arctic Species in the Context of Environmental Change
The individual of a species is the basic unit which responds to climate and UV-B changes, and it responds over a wide range of time scales. The diversity of animal, plant and microbial species appears to be low in the Arctic, and decreases from the boreal forests to the polar deserts of the extreme North but primitive species are particularly abundant. This latitudinal decline is associated with an increase in super-dominant species that occupy a…
Effects of Changes in Climate on Landscape and Regional Processes, and Feedbacks to the Climate System
Biological and physical processes in the Arctic system operate at various temporal and spatial scales to impact large-scale feedbacks and interactions with the earth system. There are four main potential feedback mechanisms between the impacts of climate change on the Arctic and the global climate system: albedo, greenhouse gas emissions or uptake by ecosystems, greenhouse gas emissions from methane hydrates, and increased freshwater fluxes that …
Effects on the Function of Arctic Ecosystems in the Short- and Long-term Perspectives
Historically, the function of Arctic ecosystems in terms of cycles of nutrients and carbon has led to low levels of primary production and exchanges of energy, water and greenhouse gases have led to low local and regional cooling. Sequestration of carbon from atmospheric CO2, in extensive, cold organic soils and the high albedo from low, snow-covered vegetation have had impacts on regional climate. However, many aspects of the functioning of Arct…
Effects on the Structure of Arctic Ecosystems in the Short- and Long-term Perspectives
Historically, the function of Arctic ecosystems in terms of cycles of nutrients and carbon has led to low levels of primary production and exchanges of energy, water and greenhouse gases have led to low local and regional cooling. Sequestration of carbon from atmospheric CO2, in extensive, cold organic soils and the high albedo from low, snow-covered vegetation have had impacts on regional climate. However, many aspects of the functioning of Arct…
The Ghost of Development Past
Hausner, V. H., P. Fauchald, T. Tveraa, E. Pedersen, J. Jernsletten, B. Ulvevadet, R. A. Ims, N. G. Yoccoz, and K. Anne Bråthen. 2011. The ghost of development past: the impact of economic security policies on Saami pastoral ecosystems . Ecology and Society 16(3): 4. https://doi.org/10.5751/ES-04193-160304
Rationale, Concepts and Approach to the Assessment
Responses to Projected Changes in Climate and UV-B at the Species Level
Environmental manipulation experiments showed that species respond individualistically to each environmental-change variable. The greatest responses of plants were generally to nutrient, particularly nitrogen, addition. Summer warming experiments showed that woody plant responses were dominant and that mosses and lichens became less abundant. Responses to warming were controlled by moisture availability and snow cover. Many invertebrates increase…
Past Changes in Arctic Terrestrial Ecosystems, Climate and UV Radiation
At the last glacial maximum, vast ice sheets covered many continental areas. The beds of some shallow seas were exposed thereby connecting previously separated landmasses. Although some areas were ice-free and supported a flora and fauna, mean annual temperatures were 10-13 degrees C colder than during the Holocene. Within a few millennia of the glacial maximum, deglaciation started, characterized by a series of climatic fluctuations between abou…
Synthesis of Effects in Four Arctic Subregions
An assessment of impacts on Arctic terrestrial ecosystems has emphasized geographical variability in responses of species and ecosystems to environmental change. This variability is usually associated with north-south gradients in climate, biodiversity, vegetation zones, and ecosystem structure and function. It is clear, however, that significant east-west variability in environment, ecosystem structure and function, environmental history, and re…
Uncertainties and Recommendations
An assessment of the impacts of changes in climate and UV-B radiation on Arctic terrestrial ecosystems, made within the Arctic Climate Impacts Assessment (ACIA), highlighted the profound implications of projected warming in particular for future ecosystem services, biodiversity and feedbacks to climate. However, although our current understanding of ecological processes and changes driven by climate and UV-B is strong in some geographical areas a…
Documenting lemming population change in the Arctic
Lemmings are a key component of tundra food webs and changes in their dynamics can affect the whole ecosystem. We present a comprehensive overview of lemming monitoring and research activities, and assess recent trends in lemming abundance across the circumpolar Arctic. Since 2000, lemmings have been monitored at 49 sites of which 38 are still active. The sites were not evenly distributed with notably Russia and high Arctic Canada underrepresente…
Circumpolar status of Arctic ptarmigan
Rock ptarmigan (Lagopus muta) and willow ptarmigan (L. lagopus) are Arctic birds with a circumpolar distribution but there is limited knowledge about their status and trends across their circumpolar distribution. Here, we compiled information from 90 ptarmigan study sites from 7 Arctic countries, where almost half of the sites are still monitored. Rock ptarmigan showed an overall negative trend on Iceland and Greenland, while Svalbard and Newfoun…
Ecosystem-based monitoring in the age of rapid climate change and new technologies
Future changes in the supply of goods and services from natural ecosystems
Jansson, R., C. Nilsson, E. C. H. Keskitalo, T. Vlasova, M.-L. Sutinen, J. Moen, F. Chapin III, K. Bråthen, M. Cabeza, T. V. Callaghan, B. Van Oort, H. Dannevig, I. A. Bay-larsen, R. A. Ims, and P. Aspholm. 2015. Future changes in the supply of goods and services from natural ecosystems: prospects for the European north. Ecology and Society 20(3): 32.http://dx.doi.org/10.5751/ES-07607-200332
Key Findings and Extended Summaries
TEST 02 - Elsevier's Scopus, the largest abstract and citation database of peer-reviewed literature. Search and access research from the science, technology, medicine, social sciences and arts and humanities fields
Uncertainties and Recommendations
An assessment of the impacts of changes in climate and UV-B radiation on Arctic terrestrial ecosystems, made within the Arctic Climate Impacts Assessment (ACIA), highlighted the profound implications of projected warming in particular for future ecosystem services, biodiversity and feedbacks to climate. However, although our current understanding of ecological processes and changes driven by climate and UV-B is strong in some geographical areas a…
Past Changes in Arctic Terrestrial Ecosystems, Climate and UV Radiation
At the last glacial maximum, vast ice sheets covered many continental areas. The beds of some shallow seas were exposed thereby connecting previously separated landmasses. Although some areas were ice-free and supported a flora and fauna, mean annual temperatures were 10–13°C colder than during the Holocene. Within a few millennia of the glacial maximum, deglaciation started, characterized by a series of climatic fluctuations between about 18 000…
Rationale, Concepts and Approach to the Assessment
Uncertainties and Recommendations
An assessment of the impacts of changes in climate and UV-B radiation on Arctic terrestrial ecosystems, made within the Arctic Climate Impacts Assessment (ACIA), highlighted the profound implications of projected warming in particular for future ecosystem services, biodiversity and feedbacks to climate. However, although our current understanding of ecological processes and changes driven by climate and UV-B is strong in some geographical areas a…
Synthesis of Effects in Four Arctic Subregions
An assessment of impacts on Arctic terrestrial ecosystems has emphasized geographical variability in responses of species and ecosystems to environmental change. This variability is usually associated with north-south gradients in climate, biodiversity, vegetation zones, and ecosystem structure and function. It is clear, however, that significant east-west variability in environment, ecosystem structure and function, environmental history, and re…
Responses to Projected Changes in Climate and UV-B at the Species Level
Environmental manipulation experiments showed that species respond individualistically to each environmental-change variable. The greatest responses of plants were generally to nutrient, particularly nitrogen, addition. Summer warming experiments showed that woody plant responses were dominant and that mosses and lichens became less abundant. Responses to warming were controlled by moisture availability and snow cover. Many invertebrates increase…
Effects on the Structure of Arctic Ecosystems in the Short- and Long-term Perspectives
Historically, the function of Arctic ecosystems in terms of cycles of nutrients and carbon has led to low levels of primary production and exchanges of energy, water and greenhouse gases have led to low local and regional cooling. Sequestration of carbon from atmospheric CO2, in extensive, cold organic soils and the high albedo from low, snow-covered vegetation have had impacts on regional climate. However, many aspects of the functioning of Arct…
Responses to Projected Changes in Climate and UV-B at the Species Level
Environmental manipulation experiments showed that species respond individualistically to each environmental-change variable. The greatest responses of plants were generally to nutrient, particularly nitrogen, addition. Summer warming experiments showed that woody plant responses were dominant and that mosses and lichens became less abundant. Responses to warming were controlled by moisture availability and snow cover. Many invertebrates increase…
Past Changes in Arctic Terrestrial Ecosystems, Climate and UV Radiation
At the last glacial maximum, vast ice sheets covered many continental areas. The beds of some shallow seas were exposed thereby connecting previously separated landmasses. Although some areas were ice-free and supported a flora and fauna, mean annual temperatures were 10-13 degrees C colder than during the Holocene. Within a few millennia of the glacial maximum, deglaciation started, characterized by a series of climatic fluctuations between abou…
Key Findings and Extended Summaries
Effects of Changes in Climate on Landscape and Regional Processes, and Feedbacks to the Climate System
Biological and physical processes in the Arctic system operate at various temporal and spatial scales to impact large-scale feedbacks and interactions with the earth system. There are four main potential feedback mechanisms between the impacts of climate change on the Arctic and the global climate system: albedo, greenhouse gas emissions or uptake by ecosystems, greenhouse gas emissions from methane hydrates, and increased freshwater fluxes that …
Rationale, Concepts and Approach to the Assessment
A general recognition that the Arctic will amplify global climate warming, that UV-B radiation may continue to increase there because of possible delays in the repair of stratospheric ozone, and that the Arctic environment and its peoples are likely to be particularly susceptible to such environmental changes stimulated an international assessment of climate change impacts. The Arctic Climate Impacts Assessment (ACIA) is a four-year study, culmin…
Effects on the Structure of Arctic Ecosystems in the Short- and Long-term Perspectives
Species individualistic responses to warming and increased UV-B radiation are moderated by the responses of neighbors within communities, and trophic interactions within ecosystems. All of these responses lead to changes in ecosystem structure. Experimental manipulation of environmental factors expected to change at high latitudes showed that summer warming of tundra vegetation has generally led to smaller changes than fertilizer addition. Some o…
Effects of Changes in Climate on Landscape and Regional Processes, and Feedbacks to the Climate System
Biological and physical processes in the Arctic system operate at various temporal and spatial scales to impact large-scale feedbacks and interactions with the earth system. There are four main potential feedback mechanisms between the impacts of climate change on the Arctic and the global climate system: albedo, greenhouse gas emissions or uptake by ecosystems, greenhouse gas emissions from methane hydrates, and increased freshwater fluxes that …
Biodiversity, Distributions and Adaptations of Arctic Species in the Context of Environmental Change
The individual of a species is the basic unit which responds to climate and UV-B changes, and it responds over a wide range of time scales. The diversity of animal, plant and microbial species appears to be low in the Arctic, and decreases from the boreal forests to the polar deserts of the extreme North but primitive species are particularly abundant. This latitudinal decline is associated with an increase in super-dominant species that occupy a…
Key Findings and Extended Summaries
TEST 02 - Elsevier's Scopus, the largest abstract and citation database of peer-reviewed literature. Search and access research from the science, technology, medicine, social sciences and arts and humanities fields
Effects on the Function of Arctic Ecosystems in the Short- and Long-term Perspectives
Historically, the function of Arctic ecosystems in terms of cycles of nutrients and carbon has led to low levels of primary production and exchanges of energy, water and greenhouse gases have led to low local and regional cooling. Sequestration of carbon from atmospheric CO2, in extensive, cold organic soils and the high albedo from low, snow-covered vegetation have had impacts on regional climate. However, many aspects of the functioning of Arct…
Synthesis of Effects in Four Arctic Subregions
An assessment of impacts on Arctic terrestrial ecosystems has emphasized geographical variability in responses of species and ecosystems to environmental change. This variability is usually associated with north-south gradients in climate, biodiversity, vegetation zones, and ecosystem structure and function. It is clear, however, that significant east-west variability in environment, ecosystem structure and function, environmental history, and re…
Ecological Dynamics Across the Arctic Associated with Recent Climate Change
Assessing the Arctic The Arctic is experiencing some of the most rapid climate change currently under way across the globe, but consequent ecological responses have not been widely reported. At the close of the Fourth International Polar Year, Post et al. (p. 1355 ) review observations on ecological impacts in this sensitive region. The widespread changes occurring in terrestrial, freshwater, and marine systems, presage changes at lower latitudes…
The Ghost of Development Past
Hausner, V. H., P. Fauchald, T. Tveraa, E. Pedersen, J. Jernsletten, B. Ulvevadet, R. A. Ims, N. G. Yoccoz, and K. Anne Bråthen. 2011. The ghost of development past: the impact of economic security policies on Saami pastoral ecosystems . Ecology and Society 16(3): 4. https://doi.org/10.5751/ES-04193-160304
Future changes in the supply of goods and services from natural ecosystems
Jansson, R., C. Nilsson, E. C. H. Keskitalo, T. Vlasova, M.-L. Sutinen, J. Moen, F. Chapin III, K. Bråthen, M. Cabeza, T. V. Callaghan, B. Van Oort, H. Dannevig, I. A. Bay-larsen, R. A. Ims, and P. Aspholm. 2015. Future changes in the supply of goods and services from natural ecosystems: prospects for the European north. Ecology and Society 20(3): 32.http://dx.doi.org/10.5751/ES-07607-200332
Emergent Rainy Winter Warm Spells May Promote Boreal Predator Expansion into the Arctic
Climate change has been characterized as the most serious threat to Arctic biodiversity. In addition to gradual changes such as climate warming, extreme weather events, such as melting temperatures in winter and rain on snow, can have profound consequences for ecosystems. Rain-on-snow events lead to the formation of ice layers in the snow pack, which can restrict access to forage plants and cause crashes of herbivore populations. These direct imp…
Ecosystem-based monitoring in the age of rapid climate change and new technologies
Documenting lemming population change in the Arctic
Lemmings are a key component of tundra food webs and changes in their dynamics can affect the whole ecosystem. We present a comprehensive overview of lemming monitoring and research activities, and assess recent trends in lemming abundance across the circumpolar Arctic. Since 2000, lemmings have been monitored at 49 sites of which 38 are still active. The sites were not evenly distributed with notably Russia and high Arctic Canada underrepresente…
Circumpolar status of Arctic ptarmigan
Rock ptarmigan (Lagopus muta) and willow ptarmigan (L. lagopus) are Arctic birds with a circumpolar distribution but there is limited knowledge about their status and trends across their circumpolar distribution. Here, we compiled information from 90 ptarmigan study sites from 7 Arctic countries, where almost half of the sites are still monitored. Rock ptarmigan showed an overall negative trend on Iceland and Greenland, while Svalbard and Newfoun…
Arctic (19 obras) · Ecology (18 obras) · Environmental Science (18 obras) · Climate change and permafrost (17 obras) · Ecosystem (16 obras) · Climate change (15 obras) · Geography (14 obras) · Tundra (14 obras) · Biology (13 obras) · Ecology (13 obras)