international standards for the practice of ecological restoration
... HUMAN WELLBEING The planet’s local native ecosystems (whether natural, semi-natural or restored) are globally recognized as having high biological, societal and economic value. Ecosystem services include, for example, provision of clean water, healthy soils, clean air, and food/fiber/medicines that ...
... HUMAN WELLBEING The planet’s local native ecosystems (whether natural, semi-natural or restored) are globally recognized as having high biological, societal and economic value. Ecosystem services include, for example, provision of clean water, healthy soils, clean air, and food/fiber/medicines that ...
Productivity, dispersal and the coexistence of intraguild predators
... IGP is strong and/or when the Intraguild Prey has an overall advantage, and impedes coexistence when the trade-off is weak and/or when the Intraguild Predator has an overall advantage. Second, the Intraguild Prey’s abundance–productivity relationship depends crucially on the dispersal rate of the In ...
... IGP is strong and/or when the Intraguild Prey has an overall advantage, and impedes coexistence when the trade-off is weak and/or when the Intraguild Predator has an overall advantage. Second, the Intraguild Prey’s abundance–productivity relationship depends crucially on the dispersal rate of the In ...
POTASSIUM - Agronomy - K
... by negatively charged clay particles, potassium does not move readily in most soils. When potassium fertilizers are applied to medium- or fine-textured soils, it takes many years for K+ ions to move over an inch or two by natural processes. In these soils, potassium is considered an immobile nutrien ...
... by negatively charged clay particles, potassium does not move readily in most soils. When potassium fertilizers are applied to medium- or fine-textured soils, it takes many years for K+ ions to move over an inch or two by natural processes. In these soils, potassium is considered an immobile nutrien ...
dasar ilmu tanah
... Bacteria dapat dikelompokkan menjadi empak kelompok fungsional. 1. Most are DECOMPOSERS That consume simple carbon compounds, such as root exudates and fresh plant litter. By this process, bacteria convert energy in soil organic matter into forms useful to the rest of the organisms in the soil food ...
... Bacteria dapat dikelompokkan menjadi empak kelompok fungsional. 1. Most are DECOMPOSERS That consume simple carbon compounds, such as root exudates and fresh plant litter. By this process, bacteria convert energy in soil organic matter into forms useful to the rest of the organisms in the soil food ...
Richness–productivity relationships between trophic levels in a
... in many food webs passes through detrital pathways (O’Neill and Reichle 1980; Wetzel 1995; Moore et al. 2004). Detritus can support higher diversity, larger predator biomass, and longer food chains than would be supported by primary productivity alone (Hairston and Hairston 1993), and it can stabili ...
... in many food webs passes through detrital pathways (O’Neill and Reichle 1980; Wetzel 1995; Moore et al. 2004). Detritus can support higher diversity, larger predator biomass, and longer food chains than would be supported by primary productivity alone (Hairston and Hairston 1993), and it can stabili ...
Functioning of mycorrhizas along the mutualism
... actions and interactions between the plant–mycorrhiza–fungus and the milieu of biotic and abiotic factors in the rhizosphere, community, and ecosystem. Some studies reporting ‘ parasitic effects ’ of mycorrhizal fungi were conducted in extremely simplified experimental systems, or were the result of ...
... actions and interactions between the plant–mycorrhiza–fungus and the milieu of biotic and abiotic factors in the rhizosphere, community, and ecosystem. Some studies reporting ‘ parasitic effects ’ of mycorrhizal fungi were conducted in extremely simplified experimental systems, or were the result of ...
McClanahan, T.N. 2002. The near future of coral reefs.
... phosphorus are likely to cause a number of changes to reef calcification and ecology (Ferrier-Pagès et al. 2000; McClanahan et al. 2002a). Nitrogen is often fixed by algae and hard corals (Shashar et al. 1994a) and exported from reefs (Pilson & Betzer 1973; Wilkinson et al. 1984; Shashar et al. 1994 ...
... phosphorus are likely to cause a number of changes to reef calcification and ecology (Ferrier-Pagès et al. 2000; McClanahan et al. 2002a). Nitrogen is often fixed by algae and hard corals (Shashar et al. 1994a) and exported from reefs (Pilson & Betzer 1973; Wilkinson et al. 1984; Shashar et al. 1994 ...
Effect of hypoxia and anoxia on invertebrate behaviour: ecological
... Abstract. Coastal hypoxia and anoxia have become a global key stressor to marine ecosystems, with almost 500 dead zones recorded worldwide. By triggering cascading effects from the individual organism to the community- and ecosystem level, oxygen depletions threaten marine biodiversity and can alter ...
... Abstract. Coastal hypoxia and anoxia have become a global key stressor to marine ecosystems, with almost 500 dead zones recorded worldwide. By triggering cascading effects from the individual organism to the community- and ecosystem level, oxygen depletions threaten marine biodiversity and can alter ...
The significance of ratios of detritus types and micro
... (Tilman 1982; Chase & Leibold 2003). Multiple mechanisms can result in competitive coexistence, including trade-offs between competitive ability and ...
... (Tilman 1982; Chase & Leibold 2003). Multiple mechanisms can result in competitive coexistence, including trade-offs between competitive ability and ...
A Simple Technique for Trapping Siren lacertina, Amphiuma means
... sameunlined traps to capture Florida applesnails(Pomacea pa/udosa), also reported mortality of snakes (20% of snakes captured)as well as injuries to A. means. The higher .mortality and morbidity observed by Darby et al. (2001) was likely due to their longer soaktimes (72 hr vs. 24 hr). In addition t ...
... sameunlined traps to capture Florida applesnails(Pomacea pa/udosa), also reported mortality of snakes (20% of snakes captured)as well as injuries to A. means. The higher .mortality and morbidity observed by Darby et al. (2001) was likely due to their longer soaktimes (72 hr vs. 24 hr). In addition t ...
plant responses to defoliation: a physiological, morphological and
... ryegrass (Lolium perenne) growing in nutrient solution demonstrated that the rate of nitrate (NO3-) absorption began to decline within 30 minutes following removal of 70% of shoot biomass. NO3- absorption decreased to less than 40% of the pre-defoliation rate within 2 hours following defoliation (C ...
... ryegrass (Lolium perenne) growing in nutrient solution demonstrated that the rate of nitrate (NO3-) absorption began to decline within 30 minutes following removal of 70% of shoot biomass. NO3- absorption decreased to less than 40% of the pre-defoliation rate within 2 hours following defoliation (C ...
The Role of Zooplankton in Global Ecosystem Dynamics
... Presentations showed that small-scale turbulence affects a range of zooplankters and processes. There are bottom-up effects that should increase the net production of the system as well as top-down effects that should move biomass into the heterotrophic compartments. Small-scale turbulence also affects ...
... Presentations showed that small-scale turbulence affects a range of zooplankters and processes. There are bottom-up effects that should increase the net production of the system as well as top-down effects that should move biomass into the heterotrophic compartments. Small-scale turbulence also affects ...
Paper
... for others, and a species with a diverse repertoire of behaviors may respond differently to climate change than species with less flexible life-history strategies. These differences among zooplankton may have dramatic effects on marine ecosystem structure (Peterson, 2009; Johnson et al., 2011). Pop ...
... for others, and a species with a diverse repertoire of behaviors may respond differently to climate change than species with less flexible life-history strategies. These differences among zooplankton may have dramatic effects on marine ecosystem structure (Peterson, 2009; Johnson et al., 2011). Pop ...
FREE Sample Here
... 1. Pedology is the study of soil formation, classification, and mapping. Soil formation is also known as soil ____________________. ANS: genesis PTS: 1 2. The three types of bedrock are igneous, metamorphic, and ____________________. ANS: sedimentary PTS: 1 3. Deltas form when rivers flowing into an ...
... 1. Pedology is the study of soil formation, classification, and mapping. Soil formation is also known as soil ____________________. ANS: genesis PTS: 1 2. The three types of bedrock are igneous, metamorphic, and ____________________. ANS: sedimentary PTS: 1 3. Deltas form when rivers flowing into an ...
Assessing the future global impacts of ozone on
... Ozone is a major secondary air pollutant, the current concentrations of which have been shown to have significant adverse effects on crop yields, forest growth and species composition. In North America and Europe, emissions of ozone precursors are decreasing but in other regions of the world, especi ...
... Ozone is a major secondary air pollutant, the current concentrations of which have been shown to have significant adverse effects on crop yields, forest growth and species composition. In North America and Europe, emissions of ozone precursors are decreasing but in other regions of the world, especi ...
Direct inhibition of leaf dark respiration by elevated CO is
... on leaf respiration in nine temperate deciduous tree species was small, averaging a 1.5% reduction in rate at 800 compared with 400 µmol mol−1 CO2 (Amthor, 2000). Other metabolic mechanisms await experimental testing (Drake et al., 1999). In addition, the potential role of systematic errors in influ ...
... on leaf respiration in nine temperate deciduous tree species was small, averaging a 1.5% reduction in rate at 800 compared with 400 µmol mol−1 CO2 (Amthor, 2000). Other metabolic mechanisms await experimental testing (Drake et al., 1999). In addition, the potential role of systematic errors in influ ...
Soil profile CO2 concentrations variations from forested and clear
... interest at a given site. Variability in subsurface CO2 concentration represents differences in rates of CO2 production and transport caused by the complex interactions between biotic and environmental factors. Soil air generally exhibits much higher CO2 levels relative to the atmosphere. Plant root ...
... interest at a given site. Variability in subsurface CO2 concentration represents differences in rates of CO2 production and transport caused by the complex interactions between biotic and environmental factors. Soil air generally exhibits much higher CO2 levels relative to the atmosphere. Plant root ...
Soil detritivore functioning in heterogeneously contaminated soils
... contamination on soil fauna were found which was probably due to the low availability of the contamination. In addition, laboratory tests were performed to address specific hypotheses of this thesis in a more controlled environment. One microcosm experiment studied the effect of vertically heterogen ...
... contamination on soil fauna were found which was probably due to the low availability of the contamination. In addition, laboratory tests were performed to address specific hypotheses of this thesis in a more controlled environment. One microcosm experiment studied the effect of vertically heterogen ...
Annotated Bibliography on Ecological Intensification
... function change over time (functional turnover) or because they are more likely to contain key species with temporally stable functioning. Across 7 y in a large biodiversity experiment, we show that more diverse plant communities had consistently higher productivity, that is, a higher level of funct ...
... function change over time (functional turnover) or because they are more likely to contain key species with temporally stable functioning. Across 7 y in a large biodiversity experiment, we show that more diverse plant communities had consistently higher productivity, that is, a higher level of funct ...
Canopy facilitates seaweed recruitment on subtidal temperate reefs
... 1. Facilitation through physical stress amelioration has been largely overlooked in subtidal marine ecosystems, where abiotic gradients are perceived to be benign. However, seemingly subtle changes in marine environmental conditions can alter community structure across vast areas, and therefore, the ...
... 1. Facilitation through physical stress amelioration has been largely overlooked in subtidal marine ecosystems, where abiotic gradients are perceived to be benign. However, seemingly subtle changes in marine environmental conditions can alter community structure across vast areas, and therefore, the ...
as a PDF
... developmental readiness. Hatching is initiDelayed hatching with extended incuba- ated by environmental cues corresponding tion involves straightforward development to the return of aquatic conditions suitable during an obligatory primary incubation pe- for larval survival and growth. The chorion rio ...
... developmental readiness. Hatching is initiDelayed hatching with extended incuba- ated by environmental cues corresponding tion involves straightforward development to the return of aquatic conditions suitable during an obligatory primary incubation pe- for larval survival and growth. The chorion rio ...
Ready and Waiting: Delayed Hatching and Extended Incubation of
... developmental readiness. Hatching is initiDelayed hatching with extended incuba- ated by environmental cues corresponding tion involves straightforward development to the return of aquatic conditions suitable during an obligatory primary incubation pe- for larval survival and growth. The chorion rio ...
... developmental readiness. Hatching is initiDelayed hatching with extended incuba- ated by environmental cues corresponding tion involves straightforward development to the return of aquatic conditions suitable during an obligatory primary incubation pe- for larval survival and growth. The chorion rio ...
The ecosystem approach to fisheries
... management-oriented research, poor or inexistent long-term monitoring, lack of strategic, integrated planning of conflicting uses, etc. The relative failure of conventional fisheries management has been abundantly described (Garcia, 1992; Garcia, 1996a; Garcia and Grainger, 1997; Sutinen and Soboil, ...
... management-oriented research, poor or inexistent long-term monitoring, lack of strategic, integrated planning of conflicting uses, etc. The relative failure of conventional fisheries management has been abundantly described (Garcia, 1992; Garcia, 1996a; Garcia and Grainger, 1997; Sutinen and Soboil, ...
Soil type determines how root and rhizosphere traits relate
... produced and released only by microorganisms (George et al. 2002). However, the quantitative contribution of microbial activity to P availability under field conditions is still debated (Richardson and Simpson 2011). Growing cereals accounts for more than half of world’s P fertilizer consumption, an ...
... produced and released only by microorganisms (George et al. 2002). However, the quantitative contribution of microbial activity to P availability under field conditions is still debated (Richardson and Simpson 2011). Growing cereals accounts for more than half of world’s P fertilizer consumption, an ...
The influence of soil type, congeneric cues, and
... depending upon groundwater conditions (Grow and ...
... depending upon groundwater conditions (Grow and ...
Human impact on the nitrogen cycle
Human impact on the nitrogen cycle is diverse. Agricultural and industrial nitrogen (N) inputs to the environment currently exceed inputs from natural N fixation. As a consequence of anthropogenic inputs, the global nitrogen cycle (Fig. 1) has been significantly altered over the past century. Global atmospheric nitrous oxide (N2O) mole fractions have increased from a pre-industrial value of ~270 nmol/mol to ~319 nmol/mol in 2005. Human activities account for over one-third of N2O emissions, most of which are due to the agricultural sector. This article is intended to give a brief review of the history of anthropogenic N inputs, and reported impacts of nitrogen inputs on selected terrestrial and aquatic ecosystems.