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Macroalgae - NSW Department of Primary Industries
... native species. They are simply responding to changes in environmental conditions as most plants do. These major blooms are mostly natural phenomena and occur all over the world. Within NSW waters, they have recently occurred at places such as Port Macquarie, Port Stephens, Jervis Bay, and Merimbula ...
... native species. They are simply responding to changes in environmental conditions as most plants do. These major blooms are mostly natural phenomena and occur all over the world. Within NSW waters, they have recently occurred at places such as Port Macquarie, Port Stephens, Jervis Bay, and Merimbula ...
Examining predator–prey body size, trophic level and body mass
... more easily accessible to consumers within the marine environment. Where terrestrial primary producers represent a higher proportion of the earth’s primary-producer biomass (approx. 99.8%), their net turnover rate is much slower than the oceanic primary producers (e.g. carbon turnover 19 years for t ...
... more easily accessible to consumers within the marine environment. Where terrestrial primary producers represent a higher proportion of the earth’s primary-producer biomass (approx. 99.8%), their net turnover rate is much slower than the oceanic primary producers (e.g. carbon turnover 19 years for t ...
BIODIVERSITY-ECOSYSTEM FUNCTION RESEARCH
... two (Poa pratensis and Achillea millefolium) are considered invasive weeds in many North American grasslands (Stubbendieck et al. 1994). Because a positive relationship between diversity and productivity was found in this system, could the results be used to suggest that exotic species should be enc ...
... two (Poa pratensis and Achillea millefolium) are considered invasive weeds in many North American grasslands (Stubbendieck et al. 1994). Because a positive relationship between diversity and productivity was found in this system, could the results be used to suggest that exotic species should be enc ...
Vegetation cover reduces erosion and enhances
... physical protection of the soil surface, the contribution of organic matter from the plant canopy and the root system (Bronick and Lal, 2005), and by the increased soil structural stability due to increasing soil organic carbon (SOC) and aggregation (Six et al., 1998). Indeed, the loss and redistrib ...
... physical protection of the soil surface, the contribution of organic matter from the plant canopy and the root system (Bronick and Lal, 2005), and by the increased soil structural stability due to increasing soil organic carbon (SOC) and aggregation (Six et al., 1998). Indeed, the loss and redistrib ...
Chapter 1: A Brief Summary of the Atmosphere (pdf format)
... Mean free path: average distance a particle must travel before colliding with another particle. ...
... Mean free path: average distance a particle must travel before colliding with another particle. ...
Food web assembly along salt marsh succession
... complexity first increased after which they became stable. Considering all this, detritivores may form an important determinant for the successional development of an ecosystem. Thirdly, invertebrate community assembly - in general - changes along succession. In an Arctic ecosystem, invertebrate spe ...
... complexity first increased after which they became stable. Considering all this, detritivores may form an important determinant for the successional development of an ecosystem. Thirdly, invertebrate community assembly - in general - changes along succession. In an Arctic ecosystem, invertebrate spe ...
Seamounts Report Vol 2
... seamounts of the South West Indian Ridge. The first one, which took place in 2009 aboard the R/V Dr Fridtjof Nansen as part of the EAF-Nansen project, studied the pelagic fauna (in the water column) associated with seamounts, while the second expedition, aboard the RRS James Cook (funded by the Natu ...
... seamounts of the South West Indian Ridge. The first one, which took place in 2009 aboard the R/V Dr Fridtjof Nansen as part of the EAF-Nansen project, studied the pelagic fauna (in the water column) associated with seamounts, while the second expedition, aboard the RRS James Cook (funded by the Natu ...
Stoichiometry of nutrient excretion by fish: interspecific variation in a
... in their diets (Mathews 1998) and in their body nutrient contents (Davis and Boyd 1978, Tanner et al. 2000, Vanni et al. 2002). Thus, the potential exists for substantial interspecific variation in the rates and ratios by which they release nutrients (Elser et al. 1996, Vanni et al. 2002). However, ...
... in their diets (Mathews 1998) and in their body nutrient contents (Davis and Boyd 1978, Tanner et al. 2000, Vanni et al. 2002). Thus, the potential exists for substantial interspecific variation in the rates and ratios by which they release nutrients (Elser et al. 1996, Vanni et al. 2002). However, ...
Invertebrate assemblages of pools in aridland streams have high
... 1. Seasonal droughts are predictable components of arid-land stream hydrology, and many arid-land aquatic taxa have adapted to their extreme environment. However, climate change is altering this predictable hydrology, producing longer and more severe droughts and creating novel disturbance regimes f ...
... 1. Seasonal droughts are predictable components of arid-land stream hydrology, and many arid-land aquatic taxa have adapted to their extreme environment. However, climate change is altering this predictable hydrology, producing longer and more severe droughts and creating novel disturbance regimes f ...
EFFECT OF SOIL COMPOSITION ON ELECTROKINETIC GROUTING
... day by day. So a need arises that one should utilize the lands for construction; residential and industrial mainly; which were considered unfit for structural erections and were rejected earlier. Moreover, the numerous existing structures are also needed to be treated for their foundation problems s ...
... day by day. So a need arises that one should utilize the lands for construction; residential and industrial mainly; which were considered unfit for structural erections and were rejected earlier. Moreover, the numerous existing structures are also needed to be treated for their foundation problems s ...
PEWOceans.Aquaculture Report
... to travel away from its parents. This potential is not always realized because it depends on ocean currents and other environmental variables. For example, species with a long planktonic phase in their early life have a high dispersal potential because they can potentially drift long distances. An e ...
... to travel away from its parents. This potential is not always realized because it depends on ocean currents and other environmental variables. For example, species with a long planktonic phase in their early life have a high dispersal potential because they can potentially drift long distances. An e ...
See Offprint - Fundación BBVA
... connectivity should be equally intuitive, however: organisms still play the key roles, but it is their trophic interactions (who eats whom) that dictate connectivity of nutrients and energy (i.e. food) through a food web and, potentially, across ecosystem boundaries. Food web connectivity (as we app ...
... connectivity should be equally intuitive, however: organisms still play the key roles, but it is their trophic interactions (who eats whom) that dictate connectivity of nutrients and energy (i.e. food) through a food web and, potentially, across ecosystem boundaries. Food web connectivity (as we app ...
current research, monitoring, and education
... conservatively estimate that between senior scientist projects and masters and dissertation studies conducted by graduate students, more than 1,000 grant and institutionally-funded projects have taken place at BMFL. This work has contributed substantially to the 1,738 peer-reviewed scientific articl ...
... conservatively estimate that between senior scientist projects and masters and dissertation studies conducted by graduate students, more than 1,000 grant and institutionally-funded projects have taken place at BMFL. This work has contributed substantially to the 1,738 peer-reviewed scientific articl ...
Salinized rivers: degraded systems or new habitats for salt
... are lentic [11] and the colonization of more unstable lotic habitats might be difficult [20]. Although there is limited knowledge on the dispersal capacity of species in naturally saline systems, one study showed that the coleopteran Ochthebius glaber had high spatial genetic variation, suggesting l ...
... are lentic [11] and the colonization of more unstable lotic habitats might be difficult [20]. Although there is limited knowledge on the dispersal capacity of species in naturally saline systems, one study showed that the coleopteran Ochthebius glaber had high spatial genetic variation, suggesting l ...
Migratory Animals Couple Biodiversity and Ecosystem Functioning
... originate in one habitat but are moved into another) can result in a net inflow of energy and nutrients (10). Although allochthonous inputs are likely to occur in most (if not all) migratory systems, quantitative estimates of these subsidies— and their consequences—are primarily limited to the trans ...
... originate in one habitat but are moved into another) can result in a net inflow of energy and nutrients (10). Although allochthonous inputs are likely to occur in most (if not all) migratory systems, quantitative estimates of these subsidies— and their consequences—are primarily limited to the trans ...
toward an ecological classification of soil bacteria
... soil bacterial communities. Traditionally microbiologists have characterized bacteria by studying individual strains that could be cultivated in the laboratory. However this approach, by itself, provides little information on soil bacterial ecology since the vast majority of soil bacteria are uncult ...
... soil bacterial communities. Traditionally microbiologists have characterized bacteria by studying individual strains that could be cultivated in the laboratory. However this approach, by itself, provides little information on soil bacterial ecology since the vast majority of soil bacteria are uncult ...
Integrating food web diversity, structure and stability
... efficiencies (i.e. low interaction strengths) (ii) higher trophiclevel species had high levels of self regulation; or (iii) donor control had a large effect on the ecosystem in question. Tilman and colleagues [11–15] have effectively argued for several mechanisms by which the diversity of plant comm ...
... efficiencies (i.e. low interaction strengths) (ii) higher trophiclevel species had high levels of self regulation; or (iii) donor control had a large effect on the ecosystem in question. Tilman and colleagues [11–15] have effectively argued for several mechanisms by which the diversity of plant comm ...
TOWARD AN ECOLOGICAL CLASSIFICATION OF SOIL BACTERIA N F ,
... soil bacterial communities. Traditionally microbiologists have characterized bacteria by studying individual strains that could be cultivated in the laboratory. However this approach, by itself, provides little information on soil bacterial ecology since the vast majority of soil bacteria are uncult ...
... soil bacterial communities. Traditionally microbiologists have characterized bacteria by studying individual strains that could be cultivated in the laboratory. However this approach, by itself, provides little information on soil bacterial ecology since the vast majority of soil bacteria are uncult ...
Global Biodiversity Outlook 3
... has major implications for current and future human well-being. The provision of food, fibre, medicines and fresh water, pollination of crops, filtration of pollutants, and protection from natural disasters are among those ecosystem services potentially threatened by declines and changes in biodiver ...
... has major implications for current and future human well-being. The provision of food, fibre, medicines and fresh water, pollination of crops, filtration of pollutants, and protection from natural disasters are among those ecosystem services potentially threatened by declines and changes in biodiver ...
Isotopes of Volatile Organic Compounds: An Emerging Approach for
... While the major source categories for biogenic and anthropogenic NMHCs are well known, the range of compounds emitted, their absolute emission rates, their chemical transformations in the atmosphere, and their impact on atmospheric photochemical processes are all active areas of research. Oxygenated ...
... While the major source categories for biogenic and anthropogenic NMHCs are well known, the range of compounds emitted, their absolute emission rates, their chemical transformations in the atmosphere, and their impact on atmospheric photochemical processes are all active areas of research. Oxygenated ...
KS3 Humanities Homework Project Geography: Ecosystem
... Explain why people are changing the ecosystem. Research and describe the impacts of changes that are taking place in the ecosystem. Rank the changes according to which you consider to be the most serious. Explain how these changes can have impacts at a range of ...
... Explain why people are changing the ecosystem. Research and describe the impacts of changes that are taking place in the ecosystem. Rank the changes according to which you consider to be the most serious. Explain how these changes can have impacts at a range of ...
Final Report - Rufford Small Grants
... degradation of mangrove forest ecosystems are now being addressed through legislative, management, conservation and rehabilitation efforts aimed at mitigating the negative impacts of previous (and planned) coastal development. Examples of mangrove forest conservation are rather isolated, usually sma ...
... degradation of mangrove forest ecosystems are now being addressed through legislative, management, conservation and rehabilitation efforts aimed at mitigating the negative impacts of previous (and planned) coastal development. Examples of mangrove forest conservation are rather isolated, usually sma ...
Abundance matters: a Weld experiment testing the more individuals
... richness with productivity was not simply a result of more individuals. In a similar aquatic container system – pitcher plants – increases in resources (dead ants) led to an increase in protozoan richness, which may have resulted from an increase in the abundance of rare taxa in higher resource trea ...
... richness with productivity was not simply a result of more individuals. In a similar aquatic container system – pitcher plants – increases in resources (dead ants) led to an increase in protozoan richness, which may have resulted from an increase in the abundance of rare taxa in higher resource trea ...
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.