LECTURE NOTES – CHAPTER 5
... 3) because of energy loss, ecosystems usually have only four or five trophic levels a) not enough energy left to support higher levels b) organisms that feed on top level are usually small and need little energy; Example: parasitic worms & fleas IV. The Carbon Cycle – the process by which carbon is ...
... 3) because of energy loss, ecosystems usually have only four or five trophic levels a) not enough energy left to support higher levels b) organisms that feed on top level are usually small and need little energy; Example: parasitic worms & fleas IV. The Carbon Cycle – the process by which carbon is ...
Conservation Biology and Restoration Ecology
... • The structure of a landscape can strongly influence biodiversity • The boundaries, or edges, between ecosystems – Are defining features of landscapes (a) Natural edges. Grasslands give way to forst ecosystems in ...
... • The structure of a landscape can strongly influence biodiversity • The boundaries, or edges, between ecosystems – Are defining features of landscapes (a) Natural edges. Grasslands give way to forst ecosystems in ...
Name Test Date: Friday, Jan. 24th, 2014 6th Grade Science Midterm
... 7. Carbon-Oxygen Cycle – circulation of carbon and oxygen in the atmosphere a. Plants take in carbon dioxide from the air. b. Plants release oxygen as a result of photosynthesis. c. Animals breathe in oxygen from the air. d. Animals breathe out carbon dioxide and the cycle begins again. 8. Nitrogen ...
... 7. Carbon-Oxygen Cycle – circulation of carbon and oxygen in the atmosphere a. Plants take in carbon dioxide from the air. b. Plants release oxygen as a result of photosynthesis. c. Animals breathe in oxygen from the air. d. Animals breathe out carbon dioxide and the cycle begins again. 8. Nitrogen ...
Ch. 37
... substances, making them available to other organisms bacteria and fungi are the principal decomposers in land ...
... substances, making them available to other organisms bacteria and fungi are the principal decomposers in land ...
Feeding Relationships
... • Abiotic factors- nonliving parts of the environment (i.e. temperature, soil, light, moisture, air currents) ...
... • Abiotic factors- nonliving parts of the environment (i.e. temperature, soil, light, moisture, air currents) ...
Ecosystems OLE
... How is an Ecosystem Organized? Most organisms do not live all alone in their habitat. Instead, organisms live together in populations and communities that interact with abiotic factors in their ecosystems. Organisms Black-tailed prairie dogs that live in prairie dog towns are all members of one spec ...
... How is an Ecosystem Organized? Most organisms do not live all alone in their habitat. Instead, organisms live together in populations and communities that interact with abiotic factors in their ecosystems. Organisms Black-tailed prairie dogs that live in prairie dog towns are all members of one spec ...
pyramid of energy
... GRAZING FOOD CHAIN- In grazing food chain; the plants are eatenliveby the herbivores. This involves a fairly rapid and direct transfer of food energy from the living plants to grazing animals and carnivores. DETRITUS FOOD CHAIN – In detritus food chain; dead plants materials (detritus), such as dead ...
... GRAZING FOOD CHAIN- In grazing food chain; the plants are eatenliveby the herbivores. This involves a fairly rapid and direct transfer of food energy from the living plants to grazing animals and carnivores. DETRITUS FOOD CHAIN – In detritus food chain; dead plants materials (detritus), such as dead ...
ICES activities - follow up to the Marine Strategy
... other issues /sectors – Considerations of environmental drivers on specific issue – Considerations of wider ecosystem impacts of options for societal action – Considerations of interactions with other human activities – If requested – trade off between losses and gains for relevant stakeholder group ...
... other issues /sectors – Considerations of environmental drivers on specific issue – Considerations of wider ecosystem impacts of options for societal action – Considerations of interactions with other human activities – If requested – trade off between losses and gains for relevant stakeholder group ...
Practice Ecology Test
... 32. A new island formed by volcanic action may eventually become populated with biotic communities as a result of A) a decrease in the amount of organic material present B) decreased levels of carbon dioxide in the area C) the lack of abiotic factors in the area D) the process of ecological successi ...
... 32. A new island formed by volcanic action may eventually become populated with biotic communities as a result of A) a decrease in the amount of organic material present B) decreased levels of carbon dioxide in the area C) the lack of abiotic factors in the area D) the process of ecological successi ...
Interactions of Living Things
... Living things use energy! Living things are divided groups by how they get their energy. – Producers: gets energy from sunlight – Consumers: gets energy from other things • Herbivore: eats only plants • Carnivore: eats only animals • Omnivore: eats plants and animals ...
... Living things use energy! Living things are divided groups by how they get their energy. – Producers: gets energy from sunlight – Consumers: gets energy from other things • Herbivore: eats only plants • Carnivore: eats only animals • Omnivore: eats plants and animals ...
UNIT 7 – EVOLUTION - BaysideFastTrackBiology2015
... Energy flows through an ecosystem; it does NOT cycle. It begins with the sun’s light energy that is absorbed by producers and converted to chemical energy in the form of glucose. Nutrients cycle through an ecosystem. The most common examples include carbon, oxygen, nitrogen, and water. Ecosyst ...
... Energy flows through an ecosystem; it does NOT cycle. It begins with the sun’s light energy that is absorbed by producers and converted to chemical energy in the form of glucose. Nutrients cycle through an ecosystem. The most common examples include carbon, oxygen, nitrogen, and water. Ecosyst ...
Ecology Unit Study Guide Levels of organization Organism
... Producers: plants, green bacteria, algae. They go through photosynthesis, 6CO2 + 6H2O C6H12O6 + 6O2, which creates food for all organisms, including plants. They are the base of all ...
... Producers: plants, green bacteria, algae. They go through photosynthesis, 6CO2 + 6H2O C6H12O6 + 6O2, which creates food for all organisms, including plants. They are the base of all ...
Chapter 12, lesson 1: Living Things and Nonliving
... Example: succession of a pond community forest community. Pond community – small fish, insects and small plants. Young pond = small organisms and few plants, little soil in bottom of pond. Organisms die and settle on bottom decompose layer of soil formed. Soil also washed into pond ...
... Example: succession of a pond community forest community. Pond community – small fish, insects and small plants. Young pond = small organisms and few plants, little soil in bottom of pond. Organisms die and settle on bottom decompose layer of soil formed. Soil also washed into pond ...
HOMEWORK PACKET UNIT 2A Part I: Introduction to Ecology
... G. the portion of Earth and its atmosphere that contains organisms H. a process in which producers use light energy to make carbohydrates ...
... G. the portion of Earth and its atmosphere that contains organisms H. a process in which producers use light energy to make carbohydrates ...
Clash of Classes Review Ecology 2014 2015.notebook
... 33 Which of the following has a direct role in the nitrogen cycle? A bacteria B legumes C decomposers D all of the above 34 Organisms need nutrients in order to A utilize hydrogen and oxygen B carry out essential life functions C recycle chemical compounds D carry out nitrogen fixation 35 Biogeochem ...
... 33 Which of the following has a direct role in the nitrogen cycle? A bacteria B legumes C decomposers D all of the above 34 Organisms need nutrients in order to A utilize hydrogen and oxygen B carry out essential life functions C recycle chemical compounds D carry out nitrogen fixation 35 Biogeochem ...
THE ECO-UNIT
... plant biomass returned as soil On-site storage terra preta formation with charcoal and consumption production from gas generators of organic material food production for local use incremental changes, traditions Slow stuctural change Water export by evaporation ...
... plant biomass returned as soil On-site storage terra preta formation with charcoal and consumption production from gas generators of organic material food production for local use incremental changes, traditions Slow stuctural change Water export by evaporation ...
bioch2b - Otterville R
... it depends upon original pioneer species, climate and interaction among later species. – * No two succession sequences are exactly alike but will tend toward similar communities in similar physical ...
... it depends upon original pioneer species, climate and interaction among later species. – * No two succession sequences are exactly alike but will tend toward similar communities in similar physical ...
ecology-notes - Deepwater Communications
... Prey Populations may be influenced by numbers of predators, availability of food supplies, or other factors. Predator-prey relationships may result in cycles of population numbers, increases in species diversity, and evolutionary change for the species involved. 3. symbiosis: the interaction betwee ...
... Prey Populations may be influenced by numbers of predators, availability of food supplies, or other factors. Predator-prey relationships may result in cycles of population numbers, increases in species diversity, and evolutionary change for the species involved. 3. symbiosis: the interaction betwee ...
Unit 5
... 1. Each ecosystem has a trophic structure of feeding relationships that determines the pathways of energy flow and chemical cycling. The trophic level that ultimately supports all others consists of autotrophs, or the primary producers of the ecosystem most producers are photosynthetic organisms tha ...
... 1. Each ecosystem has a trophic structure of feeding relationships that determines the pathways of energy flow and chemical cycling. The trophic level that ultimately supports all others consists of autotrophs, or the primary producers of the ecosystem most producers are photosynthetic organisms tha ...
Power Point - Science Olympiad
... Highest summer temperature is only about 10o C • Annual precipitation (mostly as snow) is 6 to 10 inches (15 to 25 cm) which is desert-like • Winds - often reach speeds of 30 to 60 miles (48 to 97 km/hr) • Sunlight - During the winter there are only a few hours or less of sunlight in the summer, the ...
... Highest summer temperature is only about 10o C • Annual precipitation (mostly as snow) is 6 to 10 inches (15 to 25 cm) which is desert-like • Winds - often reach speeds of 30 to 60 miles (48 to 97 km/hr) • Sunlight - During the winter there are only a few hours or less of sunlight in the summer, the ...
Ecosystem
An ecosystem is a community of living organisms in conjunction with the nonliving components of their environment (things like air, water and mineral soil), interacting as a system. These biotic and abiotic components are regarded as linked together through nutrient cycles and energy flows. As ecosystems are defined by the network of interactions among organisms, and between organisms and their environment, they can be of any size but usually encompass specific, limited spaces (although some scientists say that the entire planet is an ecosystem).Energy, water, nitrogen and soil minerals are other essential abiotic components of an ecosystem. The energy that flows through ecosystems is obtained primarily from the sun. It generally enters the system through photosynthesis, a process that also captures carbon from the atmosphere. By feeding on plants and on one another, animals play an important role in the movement of matter and energy through the system. They also influence the quantity of plant and microbial biomass present. By breaking down dead organic matter, decomposers release carbon back to the atmosphere and facilitate nutrient cycling by converting nutrients stored in dead biomass back to a form that can be readily used by plants and other microbes.Ecosystems are controlled both by external and internal factors. External factors such as climate, the parent material which forms the soil and topography, control the overall structure of an ecosystem and the way things work within it, but are not themselves influenced by the ecosystem. Other external factors include time and potential biota. Ecosystems are dynamic entities—invariably, they are subject to periodic disturbances and are in the process of recovering from some past disturbance. Ecosystems in similar environments that are located in different parts of the world can have very different characteristics simply because they contain different species. The introduction of non-native species can cause substantial shifts in ecosystem function. Internal factors not only control ecosystem processes but are also controlled by them and are often subject to feedback loops. While the resource inputs are generally controlled by external processes like climate and parent material, the availability of these resources within the ecosystem is controlled by internal factors like decomposition, root competition or shading. Other internal factors include disturbance, succession and the types of species present. Although humans exist and operate within ecosystems, their cumulative effects are large enough to influence external factors like climate.Biodiversity affects ecosystem function, as do the processes of disturbance and succession. Ecosystems provide a variety of goods and services upon which people depend; the principles of ecosystem management suggest that rather than managing individual species, natural resources should be managed at the level of the ecosystem itself. Classifying ecosystems into ecologically homogeneous units is an important step towards effective ecosystem management, but there is no single, agreed-upon way to do this.