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Dinger EC, Hendrickson DA, Winsborough BM, Marks JC (2006)
... (Grotzinger, 1990) and competition for space with other algal forms (Moore & Burne, 1994). Application of food web theory may increase understanding of the interactions of vertebrates, invertebrates and stromatolites. Food web theory predicts that in a two trophic level system, topdown effects of her ...
... (Grotzinger, 1990) and competition for space with other algal forms (Moore & Burne, 1994). Application of food web theory may increase understanding of the interactions of vertebrates, invertebrates and stromatolites. Food web theory predicts that in a two trophic level system, topdown effects of her ...
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... This curriculum focuses on the coastal ecosystem in the Gulf of the Farallones. Birds, the sandy beach, and oceanographic currents are all connected in this ecosystem. One goal of this curriculum is to teach high school students about the natural connections in the ecosystem and how humans fit into ...
... This curriculum focuses on the coastal ecosystem in the Gulf of the Farallones. Birds, the sandy beach, and oceanographic currents are all connected in this ecosystem. One goal of this curriculum is to teach high school students about the natural connections in the ecosystem and how humans fit into ...
Rangelands and Pasturelands - Manitoba Forestry Association
... periodic renovation and/or cultural treatments such as tillage, fertilization, mowing, weed control and may be irrigated. They are not in rotation with crops”. In Manitoba, three factors require adjustments to these definitions: 1) widespread introduction of nonnative species, 2) greater overlap of ...
... periodic renovation and/or cultural treatments such as tillage, fertilization, mowing, weed control and may be irrigated. They are not in rotation with crops”. In Manitoba, three factors require adjustments to these definitions: 1) widespread introduction of nonnative species, 2) greater overlap of ...
Decline in top predator body size and changing climate alter trophic
... prey populations. Where it has been examined, the effects of overfishing have cascaded down the food chain. In an intensively fished area on the western Scotian Shelf, Northwest Atlantic, the biomass of prey species increased exponentially (doubling time of 11 years) even though the aggregate biomas ...
... prey populations. Where it has been examined, the effects of overfishing have cascaded down the food chain. In an intensively fished area on the western Scotian Shelf, Northwest Atlantic, the biomass of prey species increased exponentially (doubling time of 11 years) even though the aggregate biomas ...
"Allometry and Metabolic Scaling in Ecology". - People
... plants (Niklas, 1994). In general, this body of work supports Bartholomew’s 1982 contention by showing that many key features of organisms are governed by metabolic rate, and thus by body size, through its effects on metabolic rate. See also: Ecological Consequences of Body Size; Huxley, Julian Sorre ...
... plants (Niklas, 1994). In general, this body of work supports Bartholomew’s 1982 contention by showing that many key features of organisms are governed by metabolic rate, and thus by body size, through its effects on metabolic rate. See also: Ecological Consequences of Body Size; Huxley, Julian Sorre ...
Your Indigenous - City of Whittlesea
... plants a mix of natives (low nutrient needs) and exotics (high nutrient needs)? Are your plants layered with the smallest at the front of your garden beds rising to taller plants at the back? Have they been grouped according to their water needs? Do you have any trees that may need attention? If you ...
... plants a mix of natives (low nutrient needs) and exotics (high nutrient needs)? Are your plants layered with the smallest at the front of your garden beds rising to taller plants at the back? Have they been grouped according to their water needs? Do you have any trees that may need attention? If you ...
Reef Fishes at All Trophic Levels Respond Positively to
... populations of large fishes. According to this prediction, large predatory species that are disproportionately targeted by fishers should benefit more from MPAs than other groups, with effects of increased predation pressure cascading through the food web and variably affecting non-predatory species ...
... populations of large fishes. According to this prediction, large predatory species that are disproportionately targeted by fishers should benefit more from MPAs than other groups, with effects of increased predation pressure cascading through the food web and variably affecting non-predatory species ...
Disturbance - Paul Keddy
... 6.2.4 Area This is self-explanatory, but it bears mention because it reminds one of at least one way to rank disturbances in terms of their ecological significance. Disturbances that affect huge areas will usually demand more attention than those influencing smaller areas. Hurricanes, for example, a ...
... 6.2.4 Area This is self-explanatory, but it bears mention because it reminds one of at least one way to rank disturbances in terms of their ecological significance. Disturbances that affect huge areas will usually demand more attention than those influencing smaller areas. Hurricanes, for example, a ...
... Florida is in a constant state of change: People move in and out of the state; they build communities; rebuild hurricane-damaged structures; enjoy the beaches, weather and wildlife; they also pollute, commute and contribute to the growth that impacts the various resources that make Florida unique. E ...
Littoral - pelagic zone food web interactions in fishless, highly humic
... is also coupled to consumer production (Cole et al. 2002). Studies of zooplankton using natural abundances of stable isotopes support this view and indicate that zooplankton acquire some of their carbon from terrestrial sources. Aquatic bacteria use allochthonous DOC and consumption of bacteria by p ...
... is also coupled to consumer production (Cole et al. 2002). Studies of zooplankton using natural abundances of stable isotopes support this view and indicate that zooplankton acquire some of their carbon from terrestrial sources. Aquatic bacteria use allochthonous DOC and consumption of bacteria by p ...
Herbicidal effect of Ailanthus altissima leaves water extracts on
... variety of habitat types (Vilà et al., 2008). On a south to north gradient its distribution is getting more confined to urban areas which provide milder winter temperatures. Due to its tolerance to pollution (Gatti, 2008; Gravano et al., 2003), A. altissima is widespread in urban environments and ot ...
... variety of habitat types (Vilà et al., 2008). On a south to north gradient its distribution is getting more confined to urban areas which provide milder winter temperatures. Due to its tolerance to pollution (Gatti, 2008; Gravano et al., 2003), A. altissima is widespread in urban environments and ot ...
Phenolics and Plant Allelopathy
... technique to extract analytes from solid samples. Although sonication has been shown to be faster than Soxhlet extraction, it also requires large volumes of toxic and expensive organic solvents. However, such methods do not provide correct data either on the amount of phenolics compounds or on their ...
... technique to extract analytes from solid samples. Although sonication has been shown to be faster than Soxhlet extraction, it also requires large volumes of toxic and expensive organic solvents. However, such methods do not provide correct data either on the amount of phenolics compounds or on their ...
- Vision Landwirtschaft
... of illness, but the maintenance of physical, mental, social and ecological well-being. Immunity, resilience and regeneration are key characteristics of health. The role of organic agriculture, whether in farming, processing, distribution, or consumption, is to sustain and enhance the health of ecosy ...
... of illness, but the maintenance of physical, mental, social and ecological well-being. Immunity, resilience and regeneration are key characteristics of health. The role of organic agriculture, whether in farming, processing, distribution, or consumption, is to sustain and enhance the health of ecosy ...
Wetland Ecology and conversation in Hong Kong
... 1.It is important for the water recycling in the ecosystem. 2.Wetlands hold the groundwater and regulate surface runoff. 3.Those can prevent desiccation of the land and droughts. 4.wetlands can protect coastal areas form invasion of sea water, they reduce the degree of Stalinization of the soil in c ...
... 1.It is important for the water recycling in the ecosystem. 2.Wetlands hold the groundwater and regulate surface runoff. 3.Those can prevent desiccation of the land and droughts. 4.wetlands can protect coastal areas form invasion of sea water, they reduce the degree of Stalinization of the soil in c ...
Coexistence of two stage-structured intraguild predators
... fixed population P have widened their niche compared to juveniles, feeding on both resource and juveniles of the varied population (Gj). Just like in the unstructured IGP system (Mylius et al., 2001), four equilibrium types at FG ¼1 occur: (1) a resource-only equilibrium; (2) a consumer-resource equi ...
... fixed population P have widened their niche compared to juveniles, feeding on both resource and juveniles of the varied population (Gj). Just like in the unstructured IGP system (Mylius et al., 2001), four equilibrium types at FG ¼1 occur: (1) a resource-only equilibrium; (2) a consumer-resource equi ...
Effects of body size and resource availability on
... with increasing snail density, causing snails to disperse more. If dispersal is motivated primarily by low levels of resources, when resources are high the relationship between dispersal and snail density should be weak regardless of snail density. At a later sampling time however, I expected densit ...
... with increasing snail density, causing snails to disperse more. If dispersal is motivated primarily by low levels of resources, when resources are high the relationship between dispersal and snail density should be weak regardless of snail density. At a later sampling time however, I expected densit ...
2009. Phytotechnology Technical and Regulatory Guidance and
... progress as the plants grow year over year (Section 2.3.2.3). For wetland species, typical depths are less than 1 foot due to oxygen limitations (Section 1.3). For trees, typical depths are 10–15 feet but often require special culturing practices (Section 2.4.3.2). Typical penetrations can be 3– 5 ...
... progress as the plants grow year over year (Section 2.3.2.3). For wetland species, typical depths are less than 1 foot due to oxygen limitations (Section 1.3). For trees, typical depths are 10–15 feet but often require special culturing practices (Section 2.4.3.2). Typical penetrations can be 3– 5 ...
Biology and Ecology of Juvenile Procambarus alleni and
... two previous studies examined life history and ecology of both P. alleni and P. fallax. The two species appear to differ in reproductive strategies, growth and maturation rates, and migration and burrowing behavior patterns. The sparse information available centers on adults rather than juvenile cr ...
... two previous studies examined life history and ecology of both P. alleni and P. fallax. The two species appear to differ in reproductive strategies, growth and maturation rates, and migration and burrowing behavior patterns. The sparse information available centers on adults rather than juvenile cr ...
Forcing Bulbs Indoors
... throughout the winter and spring months. The easiest and most common hardy bulbs for forcing are crocuses (Crocus species), daffodils (Narcissus species), hyacinths (Hyacinthus species), and tulips (Tulipa species). Others that can easily be forced include Dutch iris (I. x hollandica), snowdrop (Gal ...
... throughout the winter and spring months. The easiest and most common hardy bulbs for forcing are crocuses (Crocus species), daffodils (Narcissus species), hyacinths (Hyacinthus species), and tulips (Tulipa species). Others that can easily be forced include Dutch iris (I. x hollandica), snowdrop (Gal ...
Plant competition in mediterranean
... (Connell 1990), including all limiting effects plants may have on each other, indirectly (resource exploitation) or directly (interference via physical contact or the release of toxic substances: allelopathy) that reduce or prevent plant growth and survival, and increase susceptibility to damage of ...
... (Connell 1990), including all limiting effects plants may have on each other, indirectly (resource exploitation) or directly (interference via physical contact or the release of toxic substances: allelopathy) that reduce or prevent plant growth and survival, and increase susceptibility to damage of ...
Plant Diversity Surpasses Plant Functional Groups and Plant
... groups on soil biota by investigating the performance of soil microorganisms and soil fauna two, four and six years after the establishment of model grasslands. The results indicate that temporal changes of plant community effects depend on the trophic affiliation of soil animals: plant diversity ef ...
... groups on soil biota by investigating the performance of soil microorganisms and soil fauna two, four and six years after the establishment of model grasslands. The results indicate that temporal changes of plant community effects depend on the trophic affiliation of soil animals: plant diversity ef ...
English version
... National biodiversity targets Tanzania is still in the process of developing comprehensive national biodiversity targets in line with the 2020 Aichi Targets. Tanzania is in the process of revising and updating the National Biodiversity Strategy and Action Plan (NBSAP) (2001), which is expected to se ...
... National biodiversity targets Tanzania is still in the process of developing comprehensive national biodiversity targets in line with the 2020 Aichi Targets. Tanzania is in the process of revising and updating the National Biodiversity Strategy and Action Plan (NBSAP) (2001), which is expected to se ...
When is a trophic cascade a trophic cascade?
... factor that would tend to increase the statistical frequency and strength of trophic interactions in the published literature, above that actually occurring in nature. As a community, trophic ecologists ought to agree upon some specific criteria that provide evidence for a cascading effect. Strong9 ...
... factor that would tend to increase the statistical frequency and strength of trophic interactions in the published literature, above that actually occurring in nature. As a community, trophic ecologists ought to agree upon some specific criteria that provide evidence for a cascading effect. Strong9 ...