Competitive dominance among sessile marine organisms in a high
... by 2025 (Clarke and Harris 2003), particularly in coastal regions (Morison et al. 2000). We suggest that Arctic nearshore systems such as the Boulder Patch would actually experience more disturbances as a result of climate change. Lack of shore fast-ice cover could result in ...
... by 2025 (Clarke and Harris 2003), particularly in coastal regions (Morison et al. 2000). We suggest that Arctic nearshore systems such as the Boulder Patch would actually experience more disturbances as a result of climate change. Lack of shore fast-ice cover could result in ...
5 - Arctic Council
... So Many Ponds In the Arctic, the abundance of ponds is partly due to the abundance of permafrost, the permanently frozen ground that lies just below the ground surface through much of ...
... So Many Ponds In the Arctic, the abundance of ponds is partly due to the abundance of permafrost, the permanently frozen ground that lies just below the ground surface through much of ...
Ponds - CAFF
... Pond Guck and Pond Scum Many of the most important occupants of ponds are almost invisible except in very large numbers. They make up the guck at the bottom of the pond and the scum that ...
... Pond Guck and Pond Scum Many of the most important occupants of ponds are almost invisible except in very large numbers. They make up the guck at the bottom of the pond and the scum that ...
as a PDF
... are caused by climate change, fires and to some extent direct human impact. Increasing air temperatures, together with changes in snow depth, influence permafrost-related processes ranging from changes in the thickness of the active layer, enhanced alas thermokarst formation, and complete thawing (Ost ...
... are caused by climate change, fires and to some extent direct human impact. Increasing air temperatures, together with changes in snow depth, influence permafrost-related processes ranging from changes in the thickness of the active layer, enhanced alas thermokarst formation, and complete thawing (Ost ...
Polar Bear - World Wildlife Fund
... Acknowledgments: Abigail Hehmeyer, Femke Koopmans, Elisabeth Kruger, Brandon LaForest, Melanie Lancaster, Shaun Martin, Gert Polet, Nicky Sundt, and Clive Tesar (all of WWF). All Photos: © Florian Schulz/visionsofthewild.com. References: 1. Wiig O et al., 2015. Ursus maritimus. The IUCN Red List of ...
... Acknowledgments: Abigail Hehmeyer, Femke Koopmans, Elisabeth Kruger, Brandon LaForest, Melanie Lancaster, Shaun Martin, Gert Polet, Nicky Sundt, and Clive Tesar (all of WWF). All Photos: © Florian Schulz/visionsofthewild.com. References: 1. Wiig O et al., 2015. Ursus maritimus. The IUCN Red List of ...
The tropical, the temperate and the arctic seas as media
... to the bottom which becomes in places devoid of animal life because of an oxygen deficit created by bacterial decomposition. On the coast, however, in shallow water where wave action causes mixing of the water the standing stock of benthos in the sediment may be large. Few fishes have adapted themse ...
... to the bottom which becomes in places devoid of animal life because of an oxygen deficit created by bacterial decomposition. On the coast, however, in shallow water where wave action causes mixing of the water the standing stock of benthos in the sediment may be large. Few fishes have adapted themse ...
The role of herbivores in mediating responses of tundra ecosystems
... above- and belowground food webs (Schmitz, 2008). ...
... above- and belowground food webs (Schmitz, 2008). ...
Arctic Tern - Alaska Center for Conservation Science
... colonies is also a potential threat. Increasing gull populations in parts of Atlantic Canada caused displacement of nesters and increased chick and egg mortality (Lock 1992); artificial concentrations of predaceous gull populations near tern colonies could be a potential threat in Alaska. In additio ...
... colonies is also a potential threat. Increasing gull populations in parts of Atlantic Canada caused displacement of nesters and increased chick and egg mortality (Lock 1992); artificial concentrations of predaceous gull populations near tern colonies could be a potential threat in Alaska. In additio ...
Les biomes : les facteurs de distribution
... freezing trees may grow. The mean annual temperature hovers near the ______________________ point, and the ground remains frozen for over half of the year. ...
... freezing trees may grow. The mean annual temperature hovers near the ______________________ point, and the ground remains frozen for over half of the year. ...
Predation and Animal Populations: Lessons from Lemmings and
... of white-fronted geese (Anser albifrons) and Canada geese (Branta canadensis) on the Kent Peninsula in the Northwest Territories, fluctuations in nesting success were not completely synchronized with the lemming cycle. Two questions emerge from this story that are of particular interest to me, and I ...
... of white-fronted geese (Anser albifrons) and Canada geese (Branta canadensis) on the Kent Peninsula in the Northwest Territories, fluctuations in nesting success were not completely synchronized with the lemming cycle. Two questions emerge from this story that are of particular interest to me, and I ...
Student - Amazon S3
... trees may grow. The mean annual temperature hovers near the ______________________ point, and the ground remains frozen for over half of the year. s) In the ________________________ zone, from 2400 m up, only bushes and grasses can survive, with a growing season of two to three months. It is cold al ...
... trees may grow. The mean annual temperature hovers near the ______________________ point, and the ground remains frozen for over half of the year. s) In the ________________________ zone, from 2400 m up, only bushes and grasses can survive, with a growing season of two to three months. It is cold al ...
Representation of tundra vegetation by pollen in lake
... weathering and eolian deposition, and thus are characterized by gentle topography and fine-textured soils (Hamilton, 1994). Summer thaw layers are shallow on these older surfaces, resulting in poor drainage and large areas of waterlogged soils (Walker et al., 1989, 1994). Landscapes dating to the It ...
... weathering and eolian deposition, and thus are characterized by gentle topography and fine-textured soils (Hamilton, 1994). Summer thaw layers are shallow on these older surfaces, resulting in poor drainage and large areas of waterlogged soils (Walker et al., 1989, 1994). Landscapes dating to the It ...
advice relevant to the identification of critical habitat
... Cumberland Sound belugas were hunted commercially in the 1800s and 1900s, and for subsistence for centuries. The population was depleted as a result of the commercial whaling and assessed by the Committee on the Status of Endangered Wildlife in Canada (COSEWIC) as Endangered in 1990. In spring of 20 ...
... Cumberland Sound belugas were hunted commercially in the 1800s and 1900s, and for subsistence for centuries. The population was depleted as a result of the commercial whaling and assessed by the Committee on the Status of Endangered Wildlife in Canada (COSEWIC) as Endangered in 1990. In spring of 20 ...
3D geodynamics of Arctic region and model of Amerasia Basin
... Kamchatka rift and the Miocene volcanic belt of the Central Kamchatka Range, that could also be viewed as evidence of a plate boundary running across Kamchatka. Some evidence for the recent (post-Early Miocene) small-offset sinistral strikeslip displacements along the faults of NW strike was obtaine ...
... Kamchatka rift and the Miocene volcanic belt of the Central Kamchatka Range, that could also be viewed as evidence of a plate boundary running across Kamchatka. Some evidence for the recent (post-Early Miocene) small-offset sinistral strikeslip displacements along the faults of NW strike was obtaine ...
canadian wildlife service permit application
... most shorebirds species across North-America, by monitoring abundance, survival, and migratory patterns. Project description: (non-technical summary; 300 words or less; describe purpose, nature and occasion of all activities; include the anticipated intensity of vehicle use) We will monitor the abun ...
... most shorebirds species across North-America, by monitoring abundance, survival, and migratory patterns. Project description: (non-technical summary; 300 words or less; describe purpose, nature and occasion of all activities; include the anticipated intensity of vehicle use) We will monitor the abun ...
Polar bear species poster
... Pollution: Toxic chemicals can pass through the food chain and accumulate in the body fat and tissue of predators: the further up the food chain, the more concentrations of toxic chemicals there are. Pollution brought by wind and water from other parts of the globe also affects them, as does develop ...
... Pollution: Toxic chemicals can pass through the food chain and accumulate in the body fat and tissue of predators: the further up the food chain, the more concentrations of toxic chemicals there are. Pollution brought by wind and water from other parts of the globe also affects them, as does develop ...
Ecological Influences of Canis lupus arctos and Canis lupus of
... In contrast to the accessible, protected, and highly observed wolves of YNP, arctic wolves have not been under intense observation, possibly because their ranges are so remote. Most data in the past has come from hunters, Inuits, and such (Mech, 2000). ...
... In contrast to the accessible, protected, and highly observed wolves of YNP, arctic wolves have not been under intense observation, possibly because their ranges are so remote. Most data in the past has come from hunters, Inuits, and such (Mech, 2000). ...
1 - SanfordChemistry
... Explain why the tundra can be compared to a desert. Rank the Canadian biomes from least to greatest for a) biodiversity b) length of growing season True or False? ...
... Explain why the tundra can be compared to a desert. Rank the Canadian biomes from least to greatest for a) biodiversity b) length of growing season True or False? ...
Presentation slides for October 2012 community meetings.
... • A2 2km 5 Model Decadal Standard Deviation Temperature • A2 2km 5 Model Decadal Standard Deviation Precipitation Other data • Water temperature and snow depth data (IMIQ) ...
... • A2 2km 5 Model Decadal Standard Deviation Temperature • A2 2km 5 Model Decadal Standard Deviation Precipitation Other data • Water temperature and snow depth data (IMIQ) ...
A Comparative Review of North American Tundra Delineations
... The Tundra is a region that has been delineated in many ecoregion maps and is sometimes further split into sub-regions. It has landscapes ranging from vast plains to ice covered lakes, average temperature ranging from −17 °C to −7 °C, and subsoil that is permanently frozen. The associated vegetation ...
... The Tundra is a region that has been delineated in many ecoregion maps and is sometimes further split into sub-regions. It has landscapes ranging from vast plains to ice covered lakes, average temperature ranging from −17 °C to −7 °C, and subsoil that is permanently frozen. The associated vegetation ...
Matter and energy flow in Spitsbergen ornithogenic tundra
... minimize the effects of man on the natural environment in polar communities (Rosswall & Heal 1975). IBP did not investigate the Spitsbergen tundra, not only because it is small in size compared to the Alaskan tundra, the Canadian Arctics, and Siberia, but also because the Spitsbergen tundra has some ...
... minimize the effects of man on the natural environment in polar communities (Rosswall & Heal 1975). IBP did not investigate the Spitsbergen tundra, not only because it is small in size compared to the Alaskan tundra, the Canadian Arctics, and Siberia, but also because the Spitsbergen tundra has some ...
Project title: The ecological function of mosses in high
... reconstruction method previously used for estimating growth rates of high-arctic aquatic mosses in order to describe the influence of climate variations. Background Aquatic mosses are often the only kind of macrophytes in high-arctic lakes. Despite the low nutrient availability and short ice free pe ...
... reconstruction method previously used for estimating growth rates of high-arctic aquatic mosses in order to describe the influence of climate variations. Background Aquatic mosses are often the only kind of macrophytes in high-arctic lakes. Despite the low nutrient availability and short ice free pe ...
The Importance of Ice Ages in Diversification of Arctic Collared
... (CHALINE1987). The phylogenetic expectation under this scenario is that all North American species, including D. hudsonius, represent a monophyletic group relative to the Eurasian D. torquatus. Apart from speciation, the isolation by the Pleistocene glacial barriers generated genetic diversification ...
... (CHALINE1987). The phylogenetic expectation under this scenario is that all North American species, including D. hudsonius, represent a monophyletic group relative to the Eurasian D. torquatus. Apart from speciation, the isolation by the Pleistocene glacial barriers generated genetic diversification ...