Microsoft Word document
... What can affect biodiversity in rivers? There are many factors. Species need an acceptable range of temperature, pH, dissolved oxygen and mineral levels. Latitude—the distance north or south of the equator— affects temperatures, although biodiversity is affected by latitude to a much higher degree i ...
... What can affect biodiversity in rivers? There are many factors. Species need an acceptable range of temperature, pH, dissolved oxygen and mineral levels. Latitude—the distance north or south of the equator— affects temperatures, although biodiversity is affected by latitude to a much higher degree i ...
Establishing minimum and maximum freshwater inflows to the
... The VEC approach has been modified to focus on critical estuarine habitat. In some cases that habitat might be physical, such as an open water oligohaline zone. In other cases the habitat is biological and typified by one or more prominent species (e.g. an oyster bar, mangrove prop roots, grass beds ...
... The VEC approach has been modified to focus on critical estuarine habitat. In some cases that habitat might be physical, such as an open water oligohaline zone. In other cases the habitat is biological and typified by one or more prominent species (e.g. an oyster bar, mangrove prop roots, grass beds ...
Ecology
... – Carrying capacity: population of critters that an ecosystem can support • Abiotic and biotic factors in an ecosystem can affect the carrying capacity of the environment. ...
... – Carrying capacity: population of critters that an ecosystem can support • Abiotic and biotic factors in an ecosystem can affect the carrying capacity of the environment. ...
Core Idea LS2 Ecosystems: Interactions, Energy, and Dynamics
... chemical elements make up molecules food web only a small fraction of the matter consumed at one level is captured by the next level up matter cycles energy flows conservation of matter and energy carbon cycle photosynthesis digestion respiration decomposition biosphere atmosphere oceans geosphere b ...
... chemical elements make up molecules food web only a small fraction of the matter consumed at one level is captured by the next level up matter cycles energy flows conservation of matter and energy carbon cycle photosynthesis digestion respiration decomposition biosphere atmosphere oceans geosphere b ...
Ecosystem Structure
... 2. All organisms also have a niche or a role in their environment. This role includes how the organism meets its need for food, shelter and resources. It also explains how an organism reproduces and survives. The niche of a species includes all its interactions with biotic and abiotic parts of its h ...
... 2. All organisms also have a niche or a role in their environment. This role includes how the organism meets its need for food, shelter and resources. It also explains how an organism reproduces and survives. The niche of a species includes all its interactions with biotic and abiotic parts of its h ...
Ecosystems and Population Change
... a particular species that can be supported in an ecosystem at a particular time. This is determined by the availability of food, presence of predators, disease and other resources. If a population exceeds the carrying capacity, there will be a decline in number until the population re-stabilizes. ...
... a particular species that can be supported in an ecosystem at a particular time. This is determined by the availability of food, presence of predators, disease and other resources. If a population exceeds the carrying capacity, there will be a decline in number until the population re-stabilizes. ...
Wk 8
... • high light reflectance due to snow cover (low penetration) • moderate to high nutrient availability Phytoplankton community dominated by small, motile, lowlight adapted phytoplankton Though not common, in some cases rates of primary production under ice cover can be constitute a significant portio ...
... • high light reflectance due to snow cover (low penetration) • moderate to high nutrient availability Phytoplankton community dominated by small, motile, lowlight adapted phytoplankton Though not common, in some cases rates of primary production under ice cover can be constitute a significant portio ...
34.1 The Biosphere is the Global Ecosystem
... The Study of Ecology • ecology: the scientific study of the interactions among organisms and between organisms and their environments • helps make decisions ...
... The Study of Ecology • ecology: the scientific study of the interactions among organisms and between organisms and their environments • helps make decisions ...
energy flows in ONE direction in an ecosystem!!!
... PYRAMID OF NUMBERS: represents the relative _________________________________________ at each trophic level ...
... PYRAMID OF NUMBERS: represents the relative _________________________________________ at each trophic level ...
Oyster Reef Restoration:
... • Determine if the system is robust to potential changes. • Finally, the constraining feedbacks are disrupted and the system is engineered toward the desired state. ...
... • Determine if the system is robust to potential changes. • Finally, the constraining feedbacks are disrupted and the system is engineered toward the desired state. ...
final slideshow
... carbohydrates, fats, proteins, DNA, and other organic compounds necessary for life. The carbon cycle is based on CO2 from the aerobic respiration of organisms, volcanic eruptions, the weathering of carbonate rocks, and the burning of carbon containing compounds. Aerobic respiration breaks down g ...
... carbohydrates, fats, proteins, DNA, and other organic compounds necessary for life. The carbon cycle is based on CO2 from the aerobic respiration of organisms, volcanic eruptions, the weathering of carbonate rocks, and the burning of carbon containing compounds. Aerobic respiration breaks down g ...
Science Concepts Planning Sheet Stability: What might happen if a
... ecosystem. So for example, Is it the temperature or humidity that effects the distribution of invertebrates through-out the day? Is it the availability of the food source that affects the distribution of invertebrates through-out the day? Should learners have been collecting data on the things that ...
... ecosystem. So for example, Is it the temperature or humidity that effects the distribution of invertebrates through-out the day? Is it the availability of the food source that affects the distribution of invertebrates through-out the day? Should learners have been collecting data on the things that ...
Topic 5 – Living In Water ( pgs
... Streams and rivers usually alternate between areas where water is calm (pools) and areas where water is moving quickly (riffles). Because of the constantly moving environment, organisms often attach themselves to rocks as their habitat. Oceans Ocean Diversity (see diagram in textbook SF pgs. 433) Oc ...
... Streams and rivers usually alternate between areas where water is calm (pools) and areas where water is moving quickly (riffles). Because of the constantly moving environment, organisms often attach themselves to rocks as their habitat. Oceans Ocean Diversity (see diagram in textbook SF pgs. 433) Oc ...
Eutrophication: managing a growing problem in aquatic systems
... Species losses may be short-term or even permanent in localised areas (e.g., the northern Gulf of Mexico, the Baltic Sea shelf, or the northwestern shelf of the Black Sea). There are no documented cases of a species extinction due to eutrophication, but there are many examples of localized or tempor ...
... Species losses may be short-term or even permanent in localised areas (e.g., the northern Gulf of Mexico, the Baltic Sea shelf, or the northwestern shelf of the Black Sea). There are no documented cases of a species extinction due to eutrophication, but there are many examples of localized or tempor ...
March 27, 2013 State Water Resources Control Board Members
... As a water resources and ecology researcher from California I am deeply concerned about the State Water Resources Control Board draft decision about flows on the San Joaquin River. Based on the best available scientific evidence, I believe the State Board must increase flows on the San Joaquin River ...
... As a water resources and ecology researcher from California I am deeply concerned about the State Water Resources Control Board draft decision about flows on the San Joaquin River. Based on the best available scientific evidence, I believe the State Board must increase flows on the San Joaquin River ...
Fundamentals Science and the environment
... – Some energy or material moves into or out of the system – Plants ...
... – Some energy or material moves into or out of the system – Plants ...
Document
... help explain how the Earth can support more people if people would eat more grains, vegetables, etc., and not eat consumers of those grains (steer, deer, etc.) Top level carnivores (eagles, hawks, tigers, sharks) are few in number and are the first to suffer when the ecosystems are disrupted. - maki ...
... help explain how the Earth can support more people if people would eat more grains, vegetables, etc., and not eat consumers of those grains (steer, deer, etc.) Top level carnivores (eagles, hawks, tigers, sharks) are few in number and are the first to suffer when the ecosystems are disrupted. - maki ...
aquatic ecosystems
... the class of marine plants and animals which have limited ability or no ability to move or "swim". They simply drift in the ocean currents and occupy most of the surface area of the earth's oceans. Marine means “of the ocean", so marine plankton are organisms which can live and grow in salt water. ...
... the class of marine plants and animals which have limited ability or no ability to move or "swim". They simply drift in the ocean currents and occupy most of the surface area of the earth's oceans. Marine means “of the ocean", so marine plankton are organisms which can live and grow in salt water. ...
Muscular System - walker2011
... ecosystems that have been disturbed or disrupted by humans, animals, or by natural process such as storms, floods, earthquakes, or volcanic eruptions. ...
... ecosystems that have been disturbed or disrupted by humans, animals, or by natural process such as storms, floods, earthquakes, or volcanic eruptions. ...
Unit1 Notes
... -treeline: the altitude at which tree growth is impossible. -struggle zone: trees become fewer and shorter as conditions become less hospitable. ...
... -treeline: the altitude at which tree growth is impossible. -struggle zone: trees become fewer and shorter as conditions become less hospitable. ...
Document
... • There are five major fields of study related to Environmental Science, which are: Biology, Chemistry, Earth Science, Social Sciences, and Humanities. • Sustainability is the ability of the Earth’s various natural systems and human cultural systems to survive and adapt to changing environmental con ...
... • There are five major fields of study related to Environmental Science, which are: Biology, Chemistry, Earth Science, Social Sciences, and Humanities. • Sustainability is the ability of the Earth’s various natural systems and human cultural systems to survive and adapt to changing environmental con ...
Prediction of ecological consequences of a major
... Higher water velocities, as induced by minimum flow increases, may involve a shift from a higher biomass of filamentous algae towards a low diatom biomass, which may affect grazing efficiency. Herbivores should dominate lower courses of rivers (Vannote et al., 1980). However, the effect of water vel ...
... Higher water velocities, as induced by minimum flow increases, may involve a shift from a higher biomass of filamentous algae towards a low diatom biomass, which may affect grazing efficiency. Herbivores should dominate lower courses of rivers (Vannote et al., 1980). However, the effect of water vel ...
Presentation
... C. Range of Tolerance • 1. There is an upper and lower limit for any environmental factor • 2. Tolerance: ability of an organism to survive when subjected to biotic or abiotic factors ...
... C. Range of Tolerance • 1. There is an upper and lower limit for any environmental factor • 2. Tolerance: ability of an organism to survive when subjected to biotic or abiotic factors ...
River ecosystem
The ecosystem of a river is the river viewed as a system operating in its natural environment, and includes biotic (living) interactions amongst plants, animals and micro-organisms, as well as abiotic (nonliving) physical and chemical interactions.River ecosystems are prime examples of lotic ecosystems. Lotic refers to flowing water, from the Latin lotus, washed. Lotic waters range from springs only a few centimeters wide to major rivers kilometers in width. Much of this article applies to lotic ecosystems in general, including related lotic systems such as streams and springs. Lotic ecosystems can be contrasted with lentic ecosystems, which involve relatively still terrestrial waters such as lakes and ponds. Together, these two fields form the more general study area of freshwater or aquatic ecology. The following unifying characteristics make the ecology of running waters unique from that of other aquatic habitats. Flow is unidirectional. There is a state of continuous physical change. There is a high degree of spatial and temporal heterogeneity at all scales (microhabitats). Variability between lotic systems is quite high. The biota is specialized to live with flow conditions.↑ ↑ ↑ ↑