Environmental science and managements kjguig 0.0 / 5 ? BiologyEnvironmental scienceUniversityNone Created by: lucymizellaCreated on: 01-05-19 13:14 Reference for food security: How many people are food insecure Wheeler et al 2013: 2 billion out of 7 billion people are food insecure as fall below FAO's dimensions of food secuirty 1 of 25 What are the 4 dimensions of food security 1) Availability 2) Access 3) Utilisation 4) Stability 2 of 25 Reference for predicted temperatures Soloman et al 2007. By 2100 will be 1.8-4.0C warmer than at the end of last century 3 of 25 Direct effects of CC on food secuirty 1) increase CO2 fertilisation (Sabine 2005) 2)increased growth season 3)increased pests and pathogens 4 of 25 Indirect effects of CC on food security 1) Soil depletion/salinisation 2)increases in prices 3)Extreme weather events 4)Decreased health 5 of 25 Ways to mitigate food insecurity 1) Reduced intensive farming methods eg tillage 2) GMOs 3) Agrochemicals 4) Irrigation techniques 6 of 25 Example of better pesticide Bacillus Thuringiensis 7 of 25 What % of wheat loss is due to pests 46% 8 of 25 Example of pest which decreases crop yield for many crop types Desert Locust 9 of 25 2 References for increased productivity due to CO2 fertilisation Sabine 2005 and parry et al 2007 (experiments) 10 of 25 Reference for ecosystem services from wetlands Maltby et al 2011 11 of 25 Reference for carbon storage in wetlands Acreman et al 2009 12 of 25 Reference for bird services Whelan et al 2008: birds and nutrient cycling 13 of 25 Reference for termites services Bignell 2011 14 of 25 Intergovernmental treaty on conservation of wetlands Ramsar convention 15 of 25 Carbon cycle and climate change in soil 1) CO2 fertilisation. 2)Degregation of soil. 3) Increased forest fires 4)Release CO2 in permafrost 5)Increase microbial activity 16 of 25 Carbon cycle and climate change in oceans 1) Increase temp = reduced ability to hold gas. 2) Altered thermohaline circulation 3)Acidification 4)Stronger hydrological cycle and salinisalinity at higher latitudes 5) increased exchange with atmosphere 17 of 25 Nitrogen cycle and climate change in soil 1) Increased temp = increased mineralisation. 2) N becomes limiting factor. 3)Increased microbial activity 4)Increased run off 18 of 25 Nitrogen cycle and climate change in ocean 1) Warming in water = cannot carry gas = N2. 2)cyanobacteria fix N2 but Fe limited Fu et al 2018. 3)OMZ = positive feedback loop 19 of 25 Ecosystem services from wetlands S= nutrient retention, soil development, C sinks. R= water quality, remove pollutants,flood,habitats,pH. P=fish,peat for fuel 20 of 25 Ecosystem services from animals S= nutrients, photosynthesis. R= pollination, biodiversity, pest and disease. P=food, leather 21 of 25 Reference for Fe limits Fu et al 2018 22 of 25 Ecosystem services produced by microbes S= PP, nutrient, soil formation, abiotic stresses. R= climate regulation, water regulation,disease and pest, soil contamination. P= biofuels, enzymes, antibiotics 23 of 25 Microbe which degrades herbicides Rhodococcus spp 24 of 25 biotechnological project to find new antibiotics METACONTROL project 25 of 25
The effect of temperature on the Heartrate and Respiration of Daphnia 5.0 / 5 based on 1 rating Teacher recommended
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