Environmental Science

45問 • 1年前

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is a collection of organisms of particular species sharing a particular characteristics of interest, most often that of living in a given area. It is also a group of similar species living in a certain place at the same time.

Population

it is the interaction between the organism that causes a population to change. it is considered as the major functional unit of ecosystem. organisms of the same species that live in the same area and interact with one another

Population

it pertains to the number of individuals in population. it may change when ndividuals enter or leave the populations.

Size

(Several factors that can affect the size of population) -number of species that entered the land -number of species that leave the land -number of species that are born -number of species that die

Immigration Emigration Natality Mortality

it is the number of the individuals of species living in a particular area of the population. it increases when the factors are favorable to the population and decreases when they are unfavorable

Density

it is another characteristics of population that tells how individuals are located in a particular area. it is simply the arrangement or how organisms belong in a population is organized with a particular space.

Distribution

there is no specific order in this type of distribution; the organism spread throughout the area without an overall pattern example of this are the shrubs

Random Distribution

the organisms are evenly distributed over an area. example of this is the coconut plantation

Uniform Distribution

the organisms are concentrated in an area. it may offer the population protection from enemies. example of this is the school of fishes.

Clumped Distribution

is an assemblage of all the interacting population that different species of organisms in an area. some species play minor roles but other play major roles but all are part of this populations of different species that live in the same area and interact with one another

community

Are living things that can make food in the process of photosynthesis

Producers (Autotrophs)

are organisms that do not produce their own food and depends an organic matter

consumers (Heterotrophs)

are animals that eat plants or phytoplankton

Primary Herbivores

These are the Secondary consumers

-eat other animals -eat both plants and animals -eat meathat from animals that died or killed by other animals

An organisms that feed on dead plants and animals

Decomposers

is a specific place or natural conditions in which a plant or animals live and has become adapted

Habitat

four essential things that organisms should have on its habitat or the reason why organisms still contact or dwell with its habitat

Food water Cover/shelter Space

in ecology it is a term with a variety of meanings related to the behavior of a species living under specific environmental conditions

Niches

it describes how an organism or population respond to the distribution of resources and competitors

Ecological Niche

it is a concept that embodies the idea that the nature of the species is determined by the habitat and which it lives and its accompanying behavioral adaptations. in other words, the niche is the sum of the habitat requirements and behaviors that allows species to persist and produce offspring

Ginnellian Niche

it is classified as niches according to forraging activities (food habits). for instance there is the niche that is filled by birds of prey which eat small animals such as Shrewsbury and mice

Eltonian Niche

is an n-dimensional hyper volume, where the dimensions are environmental conditions and resources that define the requirements of an individual or a species to practice "its"way of life more particularly for its population to persist

Hutchinsonian niche

is the passage of energy in a community from one organism to another, or it can be defined as a sequence of organisms related to one another as prey and predators. in an ecosystem we have to consider the kinds of organisms the producers autotrophs and consumers heterotrophs.

Food chain

it is called as storage steps along a food chain

Trophic Level

is a pattern of food chain that interlocks and forms a network. it is a diagram of the links among species in an ecosystem essentially who eats what.

Food web

refers to the amount of energy stored and chemical compounds of plants

Productivity

refers to the rate at which organic matter is produced during photosynthesis

Gross Primary Productivity

is the rate at which this organic matters stored in plants produces growth

Net Productivity

in the environment the sun is the source of energy, the light from it is absorbed by the plants in the means of photosynthesis, when the producer is eaten by the herbivore and herbivore is eaten by another consumer the amount of energy transfer decreases at each trophic level. 90% of the energy in taken by a consumer is used for a metabolic activities like breathing and respiration so there is only 10% of energy left to be passed to the next level

Pyramid of Energy

it refers to the total weight of dry matter present in an ecosystem. This kind of pyramid refers to the size of the weight of each trophic level. the higher the level is the lesser the quantity and greater in mass. it indicates that a large number of producers are needed to support a small amount of consumers

Pyramid of Biomass

just like the pyramid of biomass this pyramid takes form of an upright position. this pyramid shows the decreasing amount of consumer present at each level. therefore the number of producer is greater than the number of consumer. in this kind of environment, for example, there is a need for a large amount of grass to feed two goats because of the mass and size of the producer which is the grass

Pyramid of Numbers

This kind of pyramid is just another type of biomass pyramid presenting that we can use a small amount of producer into feed a large quantity of consumers depending to the size of the producers. For example there is only a need for one mango tree to feed on 100 children

Inverted Pyramid

Is a natural unit consisting of all living organisms in an area functioning together with all nonliving physical factors of the environment.

ecosystem

Ecosystems are not close at least in terms of energy. Where do most ecosystem obtain energy? And some ecosystem obtain energy from?

Sunlight chemical compounds

Elements such as_____are needed by living organisms are used over and over again

carbon and nitrogen

Refers to the role of a species in its ecosystem. it includes all the way species members interact with the abiotic and biotic components of the ecosystem. Two important aspects of this include the food it eats and how it obtains the food

niche

It is the chief food producers in the ocean. refers to all the tiny photoautotrophs found on or near the surface of a body of water.

Phytoplankton

An example of a descriptive statistic is

mean

Scientific study of the interactions of living things with each other and their environments

ecology

are organisms that use energy from sunlight to make glucose from carbon dioxide and water by photosynthesis. Glucose, a carbohydrate, is an organic compound that can be used by autotrophs and other organisms for energy.

Photoautotrophs

Some places where life is found on Earth, there is not enough light to provide energy for photosynthesis. Instead of energy from sunlight, it depends on energy from the oxidation of inorganic compounds, such as hydrogen sulfide (H2S). Oxidation is an energy-releasing chemical reaction in which a molecule, atom, or ion loses electrons.

chemoautotrophs

carnivores that mainly eat the carcasses of dead animals

scavengers

small organisms that consume producers on or near the surface of a body of water

Zooplankton

He defined that the niche of an animal means it's place in biotic environment, it's relations to food and enemies

Charles Sutherland Elton

An organism that feeds on and breaks down dead plant or animal matter, returning essential nutrients to the ecosystem

Detrivore

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Leah Jean Better · 28問 · 2年前

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