Adaption to climate-related changes in seagrass ecosystems in
... Global extent of seagrasses has dramatically reduced over the past century, due to human and natural pressures [Björk et al, 2008]. Signifcant anthropogenic threats to seagrass ecosystems include eutrophication and sedimentation caused by poor farming and forestry practices, and destructive fshing m ...
... Global extent of seagrasses has dramatically reduced over the past century, due to human and natural pressures [Björk et al, 2008]. Signifcant anthropogenic threats to seagrass ecosystems include eutrophication and sedimentation caused by poor farming and forestry practices, and destructive fshing m ...
New Cost Estimates for Carbon Sequestration Through Afforestation
... The first studies on the cost of sequestering carbon in forests appeared in the late 1980s (Dudek and LeBlanc 1990, Marland 1988, Sedjo 1989) and provided point estimates of the average cost of forest carbon sequestration. Moulton and Richards (1990) provided the first marginal cost estimates for th ...
... The first studies on the cost of sequestering carbon in forests appeared in the late 1980s (Dudek and LeBlanc 1990, Marland 1988, Sedjo 1989) and provided point estimates of the average cost of forest carbon sequestration. Moulton and Richards (1990) provided the first marginal cost estimates for th ...
File
... • Phosphorus may enter soil and water when rocks erode. • Small amounts of phosphorus dissolve as phosphate, which moves into the soil. • Plants absorb phosphates in the soil through their roots. • Some phosphorus washes off the land and ends up in the ocean. • Because many phosphate salts are not s ...
... • Phosphorus may enter soil and water when rocks erode. • Small amounts of phosphorus dissolve as phosphate, which moves into the soil. • Plants absorb phosphates in the soil through their roots. • Some phosphorus washes off the land and ends up in the ocean. • Because many phosphate salts are not s ...
EnvSci Ch5 PPT
... • Phosphorus may enter soil and water when rocks erode. • Small amounts of phosphorus dissolve as phosphate, which moves into the soil. • Plants absorb phosphates in the soil through their roots. • Some phosphorus washes off the land and ends up in the ocean. • Because many phosphate salts are not s ...
... • Phosphorus may enter soil and water when rocks erode. • Small amounts of phosphorus dissolve as phosphate, which moves into the soil. • Plants absorb phosphates in the soil through their roots. • Some phosphorus washes off the land and ends up in the ocean. • Because many phosphate salts are not s ...
Hoto (AZTI response)
... huge variations in a complex system, including for the original water dynamics conditions witch were the factors of the site selection. The close link between wave, hydrodynamics, sediment transport and morphology make some systems very sensible to interferences like the ones created by aquaculture ...
... huge variations in a complex system, including for the original water dynamics conditions witch were the factors of the site selection. The close link between wave, hydrodynamics, sediment transport and morphology make some systems very sensible to interferences like the ones created by aquaculture ...
Sedimentary Rocks
... Bedding/Stratification - Sediments transported by water and wind are typically bedded (or stratified) due to fluccuations in the velocity of transport and sediment load. Graded bedding is a gradual change from coarse particles at the base to fine particles at the top of a bed that reflects a gradual ...
... Bedding/Stratification - Sediments transported by water and wind are typically bedded (or stratified) due to fluccuations in the velocity of transport and sediment load. Graded bedding is a gradual change from coarse particles at the base to fine particles at the top of a bed that reflects a gradual ...
Characterizing postindustrial changes in the ocean carbon cycle in
... atmospheric O2 and CO2 measurements (Keeling and Shertz, 1992; Keeling et al., 1996). While these independent methods have their own uncertainties, they consistently indicate that oceans have absorbed approximately 2 PgC yr−1 in the past two decades. The estimation of the cumulative global ocean upt ...
... atmospheric O2 and CO2 measurements (Keeling and Shertz, 1992; Keeling et al., 1996). While these independent methods have their own uncertainties, they consistently indicate that oceans have absorbed approximately 2 PgC yr−1 in the past two decades. The estimation of the cumulative global ocean upt ...
Abstract Book - Center for Integrative Geosciences
... surface–deep ocean δ13C gradients after the Cretaceous-Palaeogene (K-Pg) boundary1. It describes a post-extinction ocean where primary productivity was drastically reduced, eliminating the surface-to-deep carbon isotope gradient produced by the biological pump. Survival of benthic foraminifera acros ...
... surface–deep ocean δ13C gradients after the Cretaceous-Palaeogene (K-Pg) boundary1. It describes a post-extinction ocean where primary productivity was drastically reduced, eliminating the surface-to-deep carbon isotope gradient produced by the biological pump. Survival of benthic foraminifera acros ...
PDF - Oceans at MIT
... The dashed line is from year 9 of the circuit, in the lower latitudes of the gyre. Warm, shallow mixed layers have outgassed COZ to the atmosphere, but overlay the deep carbon rich column created in the subduction region. The dotted line is from year 12 of the circuit, following the rapid transit th ...
... The dashed line is from year 9 of the circuit, in the lower latitudes of the gyre. Warm, shallow mixed layers have outgassed COZ to the atmosphere, but overlay the deep carbon rich column created in the subduction region. The dotted line is from year 12 of the circuit, following the rapid transit th ...
Terrestrial Carbon Sequestration as a Climate Change Mitigation
... subsystem. Plant species which are less vulnerable to climate change have a greater potential of carbon sequestration. This view is supported by Negi and Chauhan [3], who studied the greenhouse gas mitigation potential by Sal (Shorea robusta Gaertn F.) forests in Doon valley, Uttaranchal, India. Sal ...
... subsystem. Plant species which are less vulnerable to climate change have a greater potential of carbon sequestration. This view is supported by Negi and Chauhan [3], who studied the greenhouse gas mitigation potential by Sal (Shorea robusta Gaertn F.) forests in Doon valley, Uttaranchal, India. Sal ...
Speed installation of system to monitor vital signs of global ocean
... the poles. Threatened are tiny life forms that help the oceans absorb an estimated 50 gigatonnes of carbon from Earth's atmosphere annually, about the same as all plants and trees on land. Humanity has a vital interest in authoritative information about ocean conditions and a global network of obser ...
... the poles. Threatened are tiny life forms that help the oceans absorb an estimated 50 gigatonnes of carbon from Earth's atmosphere annually, about the same as all plants and trees on land. Humanity has a vital interest in authoritative information about ocean conditions and a global network of obser ...
Michelle Budny
... Climate change Although deforestation is threatening mangroves most quickly, climate change is expected to have several impacts on mangroves as well. The Intergovernmental Panel on Climate Change (2007) has reported dramatic increases in the atmospheric levels of greenhouse gases, especially carbon ...
... Climate change Although deforestation is threatening mangroves most quickly, climate change is expected to have several impacts on mangroves as well. The Intergovernmental Panel on Climate Change (2007) has reported dramatic increases in the atmospheric levels of greenhouse gases, especially carbon ...
2002 Benthic Ecology Meeting, Tallahassee, Florida
... Coastal mangrove ecosystems are among the most productive systems in the tropics. Mangroves provide a variety of intrinsic ecological benefits including the nursery grounds for a number of commercially important finfish and shellfish. Accordingly, mangroves form an important part of the economic res ...
... Coastal mangrove ecosystems are among the most productive systems in the tropics. Mangroves provide a variety of intrinsic ecological benefits including the nursery grounds for a number of commercially important finfish and shellfish. Accordingly, mangroves form an important part of the economic res ...
Chapter 12: The Changing Face of the Land
... Land plants synthesize other carbon-based acids in their roots to leach chemical nutrients from rocks. Streams transport weathering products to the ocean. ...
... Land plants synthesize other carbon-based acids in their roots to leach chemical nutrients from rocks. Streams transport weathering products to the ocean. ...
Carbon Cycle Dynamics For a Neoproterozoic Climate Model
... penetrate the thin ice (<10m) [eg. McKay, 2000], it was later shown that regions of thin ice could not survive at the equator due to crystallized brine pockets of salt which would alter the albedo and surface heat flux of the ice and also due to the intrusion of sea glaciers which would rip apart an ...
... penetrate the thin ice (<10m) [eg. McKay, 2000], it was later shown that regions of thin ice could not survive at the equator due to crystallized brine pockets of salt which would alter the albedo and surface heat flux of the ice and also due to the intrusion of sea glaciers which would rip apart an ...
Biosphere Exam Study Guide PreAP Biosphere Exam Study Guide
... 1. Identify the limiting factors that determine the type of life found in biomes and water ecosystems. 2. Be able to identify the characteristics of each biome/water ecosystem: climate, animal life, plant life, plant and animal adaptations. 3. Be able to identify the location of a biome on a world m ...
... 1. Identify the limiting factors that determine the type of life found in biomes and water ecosystems. 2. Be able to identify the characteristics of each biome/water ecosystem: climate, animal life, plant life, plant and animal adaptations. 3. Be able to identify the location of a biome on a world m ...
hanging by a Thread On Rocky shores
... That’s exactly what is happening to species that are ubiquitous along the rocky shores of both the US West and East Coasts: blue mussels. Mussels make use of what are called byssal threads—strong, silky fibers—to attach to rocks, pilings, and other hard substrates. They produce the threads using bys ...
... That’s exactly what is happening to species that are ubiquitous along the rocky shores of both the US West and East Coasts: blue mussels. Mussels make use of what are called byssal threads—strong, silky fibers—to attach to rocks, pilings, and other hard substrates. They produce the threads using bys ...
Student_Worksheet_sediments
... attempt was made to study marine sediments and the sea floor. The data it generated has greatly expanded the field of oceanography as well as our understanding of climate change, Earth history, marine resources, natural hazards, and the development and evolution of life. ODP began in 1985 as a US an ...
... attempt was made to study marine sediments and the sea floor. The data it generated has greatly expanded the field of oceanography as well as our understanding of climate change, Earth history, marine resources, natural hazards, and the development and evolution of life. ODP began in 1985 as a US an ...
Ecosystems: the flux of energy and matter
... endothermic consumers spend a much greater proportion of their assimilated energy on respiration than do ectothermic consumers. An endothermic animal eating low-quality plant food may have a net production efficiency of less than 1%, while an ectothermic carnivore that eats a high-quality animal pre ...
... endothermic consumers spend a much greater proportion of their assimilated energy on respiration than do ectothermic consumers. An endothermic animal eating low-quality plant food may have a net production efficiency of less than 1%, while an ectothermic carnivore that eats a high-quality animal pre ...
Accelerating Tropicalization and the Transformation of Temperate
... suggested that the continuing influx of tropically associated herbivores into the northern, warm temperate Gulf of Mexico would likely result in seagrass meadows that are cropped down to the height of closely mowed lawns, greatly reducing their value as nursery grounds for many economically importan ...
... suggested that the continuing influx of tropically associated herbivores into the northern, warm temperate Gulf of Mexico would likely result in seagrass meadows that are cropped down to the height of closely mowed lawns, greatly reducing their value as nursery grounds for many economically importan ...
Differential response of ants to nutrient addition in a tropical Brown
... microbial activity is nutrient limited, both in temperate and tropical forests (Scheu and Schaefer, 1998; Krashevska et al., 2010). Additions of C (as glucose), N and P lead to both higher microbial biomass and respiration. Some of these experiments aim at increasing the availability of resources (m ...
... microbial activity is nutrient limited, both in temperate and tropical forests (Scheu and Schaefer, 1998; Krashevska et al., 2010). Additions of C (as glucose), N and P lead to both higher microbial biomass and respiration. Some of these experiments aim at increasing the availability of resources (m ...
Carbon-climate coupling in the Northern High Latitudes
... IPCC 2007). Most of these studies show a positive feedback to the climate system. That is, under a warmer scenario, ecosystems will further reduce their capacity to absorb anthropogenic emissions, leading to more CO2 being retained in the atmosphere and an acceleration of global warming. However, qu ...
... IPCC 2007). Most of these studies show a positive feedback to the climate system. That is, under a warmer scenario, ecosystems will further reduce their capacity to absorb anthropogenic emissions, leading to more CO2 being retained in the atmosphere and an acceleration of global warming. However, qu ...
Chapter 4: Marine sediments
... Metal sulfides Contain iron, nickel, copper, zinc, silver, and other metals Associated with hydrothermal vents ...
... Metal sulfides Contain iron, nickel, copper, zinc, silver, and other metals Associated with hydrothermal vents ...
primary production methods - Center for Microbial Oceanography
... and the dissolved inorganic carbon pool is labeled with a known amount of radioactive 14C-bicarbonate. After incubation in clear containers, carbon Rxation is quantiRed by liquid scintillation counting to detect the appearance of 14C in organic form. Generally, organic carbon is collected as particl ...
... and the dissolved inorganic carbon pool is labeled with a known amount of radioactive 14C-bicarbonate. After incubation in clear containers, carbon Rxation is quantiRed by liquid scintillation counting to detect the appearance of 14C in organic form. Generally, organic carbon is collected as particl ...