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  • Ecosystems.  (1)
  • Environment Pollution; Earth Resources and Remote Sensing  (1)
  • 1
    Online Resource
    Online Resource
    Cham :Springer International Publishing :
    Keywords: Biotic communities. ; Ecology . ; Conservation biology. ; Environmental management. ; Physical geography. ; Sustainability. ; Ecosystems. ; Ecology. ; Conservation Biology. ; Environmental Management. ; Earth System Sciences. ; Sustainability.
    Description / Table of Contents: Ecosystem Collapse and Climate Change: An Introduction -- PART I. Polar and Boreal Ecosystems -- Ecosystem Collapse on a Sub-Antarctic Island -- Permafrost Thaw in Northern Peatlands: Rapid Changes in Ecosystem and Landscape Functions -- Post-fire Recruitment Failure as a Driver of Forest to Non-forest Ecosystem Shifts in Boreal Regions -- A Paleo-perspective on Ecosystem Collapse in Boreal North America -- PART II. Temperate and Semi-arid Ecosystems -- The 2016 Tasmanian Wilderness Fires: Fire Regime Shifts and Climate Change in a Gondwanan Biogeographic Refugium -- Climate-Induced Global Forest Shifts due to Heatwave-Drought -- Extreme Events Trigger Terrestrial and Marine Ecosystem Collapses in the Southwestern USA and Southwestern Australia -- PART III. Tropical and Temperate Coastal Ecosystems -- Processes and Factors Driving Change in Mangrove Forests: An Evaluation Based on the Mass Dieback Event in Australia’s Gulf of Carpentaria -- Recurrent Mass-Bleaching and the Potential for Ecosystem Collapse on Australia’s Great Barrier Reef -- Sliding Toward the Collapse of Mediterranean Coastal Marine Rocky Ecosystems -- Marine Heatwave Drives Collapse of Kelp Forests in Western Australia -- Impact of Marine Heatwaves on Seagrass Ecosystems.
    Abstract: Human-driven greenhouse emissions are increasing the velocity of climate change and the frequency and intensity of climate extremes far above historical levels. These changes, along with other human-perturbations, are setting the conditions for more rapid and abrupt ecosystem dynamics and collapse. This book presents new evidence on the rapid emergence of ecosystem collapse in response to the progression of anthropogenic climate change dynamics that are expected to intensify as the climate continues to warm. Discussing implications for biodiversity conservation, the chapters provide examples of such dynamics globally covering polar and boreal ecosystems, temperate and semi-arid ecosystems, as well as tropical and temperate coastal ecosystems. Given its scope, the volume appeals to scientists in the fields of general ecology, terrestrial and coastal ecology, climate change impacts, and biodiversity conservation.
    Type of Medium: Online Resource
    Pages: VIII, 366 p. 93 illus., 86 illus. in color. , online resource.
    Edition: 1st ed. 2021.
    ISBN: 9783030713300
    Series Statement: Ecological Studies, Analysis and Synthesis, 241
    DDC: 577
    Language: English
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  • 2
    Publication Date: 2019-07-13
    Description: Methane is an important greenhouse gas, responsible for about 20 of the warming induced by long-lived greenhouse gases since pre-industrial times. By reacting with hydroxyl radicals, methane reduces the oxidizing capacity of the atmosphere and generates ozone in the troposphere. Although most sources and sinks of methane have been identified, their relative contributions to atmospheric methane levels are highly uncertain. As such, the factors responsible for the observed stabilization of atmospheric methane levels in the early 2000s, and the renewed rise after 2006, remain unclear. Here, we construct decadal budgets for methane sources and sinks between 1980 and 2010, using a combination of atmospheric measurements and results from chemical transport models, ecosystem models, climate chemistry models and inventories of anthropogenic emissions. The resultant budgets suggest that data-driven approaches and ecosystem models overestimate total natural emissions. We build three contrasting emission scenarios which differ in fossil fuel and microbial emissions to explain the decadal variability in atmospheric methane levels detected, here and in previous studies, since 1985. Although uncertainties in emission trends do not allow definitive conclusions to be drawn, we show that the observed stabilization of methane levels between 1999 and 2006 can potentially be explained by decreasing-to-stable fossil fuel emissions, combined with stable-to-increasing microbial emissions. We show that a rise in natural wetland emissions and fossil fuel emissions probably accounts for the renewed increase in global methane levels after 2006, although the relative contribution of these two sources remains uncertain.
    Keywords: Environment Pollution; Earth Resources and Remote Sensing
    Type: GSFC-E-DAA-TN11450 , Nature Geoscience (ISSN 1752-0894) (e-ISSN 1752-0908); 6; 813-823
    Format: text
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