caribbean and large marine ecosystems north brazil shelf
... for shipping, and holds significant potential as a major producer of hydrocarbons (oil and gas). A total of 12,046 marine species have been reported for the Caribbean region. ...
... for shipping, and holds significant potential as a major producer of hydrocarbons (oil and gas). A total of 12,046 marine species have been reported for the Caribbean region. ...
Organism Size, Life History, and N:P Stoichiometry
... ratio of zooplankton that dramatically affect the relative rates of recycling of nitrogen and phosphorus by elementally homeostatic consumers (Sterner 1990). For example, when the food web structure favors dominance by consumers with high body N:P (e.g., calanoid copepods, with body N:P ratio greate ...
... ratio of zooplankton that dramatically affect the relative rates of recycling of nitrogen and phosphorus by elementally homeostatic consumers (Sterner 1990). For example, when the food web structure favors dominance by consumers with high body N:P (e.g., calanoid copepods, with body N:P ratio greate ...
Managing for ocean biodiversity to sustain marine ecosystem services.
... 2005). These ecosystems provide food, shelter, recycling, and other support mechanisms that human communities require, but fundamental services are declining as ecosystems are unraveled by human impacts (Palmer et al. 2004). Marine ecosystems (Figure 1) provide a constellation of services: they prod ...
... 2005). These ecosystems provide food, shelter, recycling, and other support mechanisms that human communities require, but fundamental services are declining as ecosystems are unraveled by human impacts (Palmer et al. 2004). Marine ecosystems (Figure 1) provide a constellation of services: they prod ...
Invertebrates in Canopy and Ground Organic Matter in a Tropical
... forest biodiversity by contributing resources for a diverse aggregation of arboreal vertebrates, invertebrates and microbes [4, 5]. Global estimates of 30 million invertebrate species by Erwin [6] were principally based on early canopy fogging studies in lowland tropical forests. These estimates wer ...
... forest biodiversity by contributing resources for a diverse aggregation of arboreal vertebrates, invertebrates and microbes [4, 5]. Global estimates of 30 million invertebrate species by Erwin [6] were principally based on early canopy fogging studies in lowland tropical forests. These estimates wer ...
To what extent do natural disturbances contribute to Andean plant
... species history traits, while ongoing recent triggers of diversification can be largely reduced to local disturbance and regional stress effects. Stress such as high radiation rates might foster speciation by mutagen ramifications while the majority of disturbances like man-made clearings or natural ...
... species history traits, while ongoing recent triggers of diversification can be largely reduced to local disturbance and regional stress effects. Stress such as high radiation rates might foster speciation by mutagen ramifications while the majority of disturbances like man-made clearings or natural ...
Soil as a Resource
... • Laterite soil – Extreme version of pedalfer – Forms in tropical climates – Contains few soluble nutrients – Forests in tropical areas hold the nutrients, not the soil – Slash and burn agriculture quickly depletes the nutrients over time – In areas where climates are monsoonal, soil may form ‘brick ...
... • Laterite soil – Extreme version of pedalfer – Forms in tropical climates – Contains few soluble nutrients – Forests in tropical areas hold the nutrients, not the soil – Slash and burn agriculture quickly depletes the nutrients over time – In areas where climates are monsoonal, soil may form ‘brick ...
Ecology of Ecosystems
... two environments are especially important to aerobic respirators worldwide as the phytoplankton perform 40 percent of all photosynthesis on Earth. Although not as diverse as the other two, deep ocean ecosystems contain a wide variety of marine organisms. Such ecosystems exist even at the bottom of t ...
... two environments are especially important to aerobic respirators worldwide as the phytoplankton perform 40 percent of all photosynthesis on Earth. Although not as diverse as the other two, deep ocean ecosystems contain a wide variety of marine organisms. Such ecosystems exist even at the bottom of t ...
2013 Lake Eyre Basin Conference Proceedings
... presence and bank damage from Sus scrofa (feral pigs) and stocked cattle were also recorded. The physical changes to aquatic ecosystems due to the impacts of cattle and feral pigs within riparian zones can result in numerous ecological responses within the system. Grazing (both pigs and cattle) can ...
... presence and bank damage from Sus scrofa (feral pigs) and stocked cattle were also recorded. The physical changes to aquatic ecosystems due to the impacts of cattle and feral pigs within riparian zones can result in numerous ecological responses within the system. Grazing (both pigs and cattle) can ...
EuteneuerSpr14
... sampled by density (A) and biomass (B) for the entire data set (n=144). Worms in the “Unknown” group were juveniles and their ecotype could not be determined. Results. All three worm ecotypes are present in the Boundary Waters. Endogeic worms were the most abundant numerically. Anecic worms were the ...
... sampled by density (A) and biomass (B) for the entire data set (n=144). Worms in the “Unknown” group were juveniles and their ecotype could not be determined. Results. All three worm ecotypes are present in the Boundary Waters. Endogeic worms were the most abundant numerically. Anecic worms were the ...
Aquatic Ecosystems
... use externally derived organic inputs. Consequently, these headwater streams are considered heterotrophic (i.e., dependent on the energy produced in the surrounding watershed). Temperature regimes are also relatively stable due to the influence of ground water recharge and shading, which tend to red ...
... use externally derived organic inputs. Consequently, these headwater streams are considered heterotrophic (i.e., dependent on the energy produced in the surrounding watershed). Temperature regimes are also relatively stable due to the influence of ground water recharge and shading, which tend to red ...
420-1373-2-RV
... environmental conditions (e.g. Feng et al. 2007). At this time it we should leave the debates and realise that these two theories can be applied in different conditions (we cannot use the general theories for terrestrial/marine, woodland/grasslands and rainforest/deserts ecosystems). Applying compet ...
... environmental conditions (e.g. Feng et al. 2007). At this time it we should leave the debates and realise that these two theories can be applied in different conditions (we cannot use the general theories for terrestrial/marine, woodland/grasslands and rainforest/deserts ecosystems). Applying compet ...
fall final exam review ws #1
... 1. What was the question that Redi was attempting to answer with this experiment? 2. What was his hypothesis? 3. What was Redi’s independent variable (manipulated variable)? 4. What was Redi’s dependent variable (responding variable)? 5. Give an example of “quantitative data” from Redi’s experiment. ...
... 1. What was the question that Redi was attempting to answer with this experiment? 2. What was his hypothesis? 3. What was Redi’s independent variable (manipulated variable)? 4. What was Redi’s dependent variable (responding variable)? 5. Give an example of “quantitative data” from Redi’s experiment. ...
Air pollution and biodiversity
... plant species declined by only 25 per cent under the same conditions . Most affected species decline due to pollution, but a minority increase. Studies suggest that if a species is affected by air pollution at all, it is likely to decline. However, a minority of species thrive under polluted condit ...
... plant species declined by only 25 per cent under the same conditions . Most affected species decline due to pollution, but a minority increase. Studies suggest that if a species is affected by air pollution at all, it is likely to decline. However, a minority of species thrive under polluted condit ...
. Carp, Cyprinus carpio Overview Overview table Invasion history
... The life-history is flexible, with long breeding seasons (up to 9 months) and the ability to spawn multiple times each year. Spawning occurs two or three times over a 14 day interval. Mating groups of one female and several males swim actively before spawning. A temperature of 18°C is required for s ...
... The life-history is flexible, with long breeding seasons (up to 9 months) and the ability to spawn multiple times each year. Spawning occurs two or three times over a 14 day interval. Mating groups of one female and several males swim actively before spawning. A temperature of 18°C is required for s ...
Dissolved Oxygen (Marine) - Canadian Environmental Quality
... be 8.6 mg⋅L-1 (Davis 1975a). Values of 130% and 165% saturation would correspond to concentrations of 11.1 mg⋅L-1 and 14.2 mg⋅L-1 , respectively. In deeper waters, especially where light is scarce, oxygen is consumed by bacteria during decomposition of organic matter. In these cases, oxygen concentr ...
... be 8.6 mg⋅L-1 (Davis 1975a). Values of 130% and 165% saturation would correspond to concentrations of 11.1 mg⋅L-1 and 14.2 mg⋅L-1 , respectively. In deeper waters, especially where light is scarce, oxygen is consumed by bacteria during decomposition of organic matter. In these cases, oxygen concentr ...
Appendix C: Typical Soil Types
... relative proportions of sand, silt and clay found in a particular soil sample determine soil texture. Overall, there are 12 recognized soil textural classifications based on the particle size. The percentages of particle sizes that can pass through various sieve sizes will determine soil texture. A ...
... relative proportions of sand, silt and clay found in a particular soil sample determine soil texture. Overall, there are 12 recognized soil textural classifications based on the particle size. The percentages of particle sizes that can pass through various sieve sizes will determine soil texture. A ...
Ecosystems
... Communities could include urban examples such as squirrels, bird populations, trees and other plants. 3. An ecosystem is an area whose communities are determined by the environmental conditions (abiotic factors) of the area. Example: Forests of Michigan thrive with certain soil conditions and amount ...
... Communities could include urban examples such as squirrels, bird populations, trees and other plants. 3. An ecosystem is an area whose communities are determined by the environmental conditions (abiotic factors) of the area. Example: Forests of Michigan thrive with certain soil conditions and amount ...
Formation of Soil lesson 3
... the weathering of the underlying bedrock into smaller pieces. This determines the basic mineral composition. Transported soil is soil that has been moved from its origin to the section of soil. Erosion is the main agent of soil transport. ...
... the weathering of the underlying bedrock into smaller pieces. This determines the basic mineral composition. Transported soil is soil that has been moved from its origin to the section of soil. Erosion is the main agent of soil transport. ...
Small Mammals: Pests or Vital Components of the Ecosystem
... 1936). Other authors (e.g., Smith 1940) viewed the presence of these small mammals as a symptom of poor range condition, rather than a cause. Small mammals have been credited with assisting in the control of undesirable plants. Plant communities in Montana, Utah, and Nevada were altered by extensive ...
... 1936). Other authors (e.g., Smith 1940) viewed the presence of these small mammals as a symptom of poor range condition, rather than a cause. Small mammals have been credited with assisting in the control of undesirable plants. Plant communities in Montana, Utah, and Nevada were altered by extensive ...
Linking Biodiversity and Ecosystem Services: Current Uncertainties and the Necessary Next Steps Forum
... this impact is, at least in the case of primary productivity, as large as some other global change drivers, including climate warming, elevated carbon dioxide, ocean acidification, or nutrient additions (Hooper et al. 2012, Tilman et al. 2012). Despite these impacts, current knowledge of the links b ...
... this impact is, at least in the case of primary productivity, as large as some other global change drivers, including climate warming, elevated carbon dioxide, ocean acidification, or nutrient additions (Hooper et al. 2012, Tilman et al. 2012). Despite these impacts, current knowledge of the links b ...
UNIVERSITY OF NOVI SAD FACULTY OF AGRICULTURE 21000
... Students will have increased knowledge about soil science that will enable them to understand the problems related to the soil in agricultural production and will have basic knowledge of soil science and land reclamation, which will enable them to better understand the problems related to agronomic ...
... Students will have increased knowledge about soil science that will enable them to understand the problems related to the soil in agricultural production and will have basic knowledge of soil science and land reclamation, which will enable them to better understand the problems related to agronomic ...
Folie 1
... Short rotation coppice of black locust (Robinia pseudoacacia L.) measurements on a regular cycle:measures of plant growth, site- and plant-parameters, element and nutrient cycle, ecology and economy rotation 4 years: the first harvest (winter 2009) resulted in an average biomass productivity of 3 t ...
... Short rotation coppice of black locust (Robinia pseudoacacia L.) measurements on a regular cycle:measures of plant growth, site- and plant-parameters, element and nutrient cycle, ecology and economy rotation 4 years: the first harvest (winter 2009) resulted in an average biomass productivity of 3 t ...
Bengtsson, J., Nilsson, SG, Franc, A., and Menozzi, P. (2000).
... with plagues and with industrialism and trade, respectively. The last century has seen the most rapid landscape changes, as technological advances have made agriculture capable to utilise more land, and the remaining marginal areas have gradually been converted to managed forests. During this proces ...
... with plagues and with industrialism and trade, respectively. The last century has seen the most rapid landscape changes, as technological advances have made agriculture capable to utilise more land, and the remaining marginal areas have gradually been converted to managed forests. During this proces ...
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.