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gradual process of change & replacement of some or all species in a community. Ecological Succession
Final and stable community climax community
occurs on a surface with no ecosystem that has existed before. primary succession
the first organisms to colonize any newly available area and begins ecological succession pioneer species
occurs on a surface where an ecosystem existed before secondary succession
secondary succession occurs in ecosystems that have been disturbed or ___________ by animals, humans or by natural processes. disrupted
ecosystems are always changing
occurs on farmland that is abandoned old field succession
what species can live without soil other than lichens bacteria
what species were important to early pioneers in primary succession lichens

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Ecological Succession Crossword

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A ______ community includes mature trees and a thriving ecosystem CLIMAX
What people in the South call a marsh SWAMP
Annual plants wildflowers
These includes fires, hurricanes, and tornados naturaldisasters
A vegetated field with grasses, flowers, and trees meadow
_______ succession is the series of changes that occur in an area where no ecosystem previously existed primary
_________ succession is the series of changes that occur after a disturbance in an existing ecosystem secondary
Secondary succession differs from primary succession because the area already has ____ soil
Other pioneer species mosses
Area of standing water that is smaller than a lake pond
First organisms to inhabit an area pioneerspecies
Even shallower water that has grasses growing in it and trees growing around it marsh
__________ enables an ecosystem to recover succession
One of the pioneer species lichens
Where primary succession begins barerock
A wetland that has shallow water because of all the deposits of dead plants bog

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How Ecosystems Work Crossword

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organism that get their energy by eating other organisms Consumer
consumers that get their food by breaking down dead organisms Decomposer
the process of breaking down food to yield energy Cellular Respiration
a sequence in which energy is transferred from one organism to the next as each organism eats another organism Food Chain
shows many feeding relationships that are possible in an ecosystem Food Web
each step through which energy is transferred in a food chain Trophic Level
a process by which carbon is cycled between the atmosphere, land, water, and organisms Carbon Cycle
a process in which nitrogen is cycled between the atmosphere, bacteria, and other organisms Nitrogen Cycle
the movement of phosphorus from the environment to organisms and then back to the environment Phosphorus Cycle
bacteria that convert atmospheric nitrogen into ammonia Nitrogen-fixing Bacteria
a gradual process of change and replacement of some or all of the species in a community Ecological Succession
the type of succession that occurs on a surface where no ecosystem existed before, such as on rocks or sand dunes Primary Succession
the more common type of succession; occurs on a surface where an ecosystem has previously existed Secondary Succession
the first organism to colonize any newly available area and begin the process of ecological succession Pioneer Species
a final and stable community Climax Community

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Ecological succession Crossword

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This crossword contains the following questions and answers:

What is ecological succession
Ecological succession is the changing sequence of communities that live in an ecosystem during a given time period
What are pioneer species? What is the role of pioneer species
Pioneer species are the first species that colonize places where there were previously no other living organisms, such as algae that colonize bare rocks. In general, pioneer species are autotrophs or maintain harmonious ecological interaction with autotrophic organisms(such as autotrophic bacteria, herbaceous plants, lichens
A pioneer community is formed of species able to survive in hostile environments. The presence of these species modifies the microenvironment, generating changes in the abiotic and biotic factors of the ecosystem in formation. Therefore, they pave the way for other species to establish themselves at the location through the creation of new potential ecological niches
What is the difference between primary ecological succession and secondary ecological succession
Primary ecological succession is the changing sequence of communities starting with the first biological occupation of a place where there were no living organisms previously. For example, the colonization and the following succession of communities on a bare rock is a case of primary ecological succession
Secondary ecological succession is the changing sequence of communities starting with the substitution of a community by a new one in a given place. An example of this is the ecological succession of the invasion of plants and animals on an abandoned crop or land
What is the climax stage of an ecological succession
The climax stage is the stage of the ecological succession in which the community of an ecosystem becomes stable and does not undergo significant changes. In the climax community, practically all ecological niches are explored and greater biodiversity is possible. In this stage the biomass, the photosynthesis rate and cellular respiration reach their maximum levels and therefore net primary production (NPP = organic material made by the producers – organic material consumed in the cellular respiration of the producers) approaches zero. During the climax, the amount of oxygen released by photosynthesis is practically equal to the oxygen consumed by respiration. (This is one more reason why it is wrong to say that the Amazon Rainforest, an ecosystem at the climax stage, is “the lung” of the earth. Other reasons are: because lungs are not producers of oxygen; and because the algae and cyanobacteria of phytoplankton are the main producers of the molecular oxygen on the planet

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Ecological Succession Vocab. Puzzle Crossword

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This crossword contains the following questions and answers:

the process of change in the species structure of an ecological community over time. Ecological Succession
one of two types of biological and ecological succession of plant life, occurring in an environment Primary Succession
process started by an event that reduces an already established ecosystem Secondary Succession
species which are the first to colonize previously disrupted or damaged ecosystems, beginning a chain of ecological succession that ultimately leads to a more biodiverse steady-state ecosystem. Pioneer Species
a simple slow-growing plant that typically forms a low crustlike, leaflike, or branching growth on rocks, walls, and trees Lichen
the interruption of a settled and peaceful condition. Disturbance
a stable mature community in a successive series which has reached equilibrium after having evolved through stages and adapted to its environment Climax Community
a habitat that is of small or limited extent and which differs in character from some surrounding more extensive habitat. Micro habitat

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Community ecology crossword

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Both organisms benefit from this relationship Mutualism
Lions and hyenas both prey on zebras Interspecific competition
Tapeworms , heart worms , and lice are all examples of Parasitism
An individual of one species eats all or part of an individual of a different species Predation
Relative abundance of each species Species evenness
Community goes through predictable stages resulting in a stable end point Climax community
Close long term relationship between two organisms Symbiosis
Gradual sequential re growth of a community of species in an area Ecological succession
One organism benefits while the other is unaffected Commensalism
Number of species in a community Species richness
Tendency of a community to maintain relatively constant conditions Stability
Species that predominates early in succession Pioneer species
The After the area the more species it has the smaller the area the less species it has Species-area effect
Sequential replacement of species that follows disruption of an existing community Secondary succession
Development of community in an rea that has not previously supported life Primary succession
Events that change communities , remove or destroy organisms from communities , or alter avilibility of resources Disturbances

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principles of ecology Crossword

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a symbiotic relationship in which both partners benefit mutualism
a symbiotic relationship that benefits one species while the other species is harmed parasitism
all the living organisms in an enviroment biotic factor
all strategies and adaptions a species uses in its enviroment habitat
any relationship in which two species live closely together symbiosis
organisms that seek out and eat other organisms predators
organisms that are eeaten prey
made up of populations or organisms that live in a common area community
anything that limits an organisms ability to live in a particular enviroment limiting factor
the process of gradual, natural change and species replacement that takes place in the communities of an ecosystem over time succession
a stable community formed after primary or secondary succession climax community
large group of ecosystems that shares the same type of climax and a diverse group of plants biomes

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Ecological Succession Word Search

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This word search contains the following answers:

community
dispertion
pioneer species
climax species
soil
limiting factors
tolerance
secondary succession
primary succession
ecological succession

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ECOLOGY Crossword

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This crossword contains the following questions and answers:

non living factors that effect an organism ABIOTICFACTOR
an organism that eats only meat CARNIVORE
the number of people, other living organisms, or crops CARRYINGCAPACITY
a group of interdependent organisms of different species growing or living together in a specified habitat COMMUNITY
an organism, especially a soil bacterium, fungus, or invertebrate, that decomposes organic material. DECOMPOSER
an animal that feeds on dead organic material DETRITIVORES
The ecological role and space that an organism fills in an ecosystem. ECOLOGICALNICHE
The progressive replacement of one dominant type of species or community by another in an ecosystem until a stable climax community is established. ECOLOGICALSUCCESSION
the scientific analysis and study of interactions among organisms and their environment ECOLOGY
to represent the flow of food energy and the feeding relationships between organisms FOODCHAIN
A graphical model showing the interconnecting food chains in an ecological community FOODWEB
an organism that eats only plants HERBIVORE
Non-native species disrupting and replacing native species INVASIVESPECIES
A factor present in an environment that controls a process, particularly the growth, abundance or distribution of a population of organisms in an ecosystem. LIMITINGFACTORS
both benefits MUTUALISM
an organism that eats plants and animals OMNIVORE
the amount of organisms of the same species in an area POPULATION
one is predator, one is prey PREDATION
an organism that makes its own food PRODUCER
A position in a food chain or Ecological Pyramid occupied by a group of organisms with similar feeding mode. TROPHICLEVEL
a biological community of interacting organisms and their physical environment ECOSYSTEM
the increasing concentration of toxic substances within each successive link in the food chain. BIOTICFACTORS
a species that has a disproportionately large effect on its environment relative to its abundance KEYSTONESPECIES
An organism that generally obtains food by feeding on other organisms CONSUMER

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Succession Crossword

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First plants that reappear will be crabgrass
In a pioneer community lichens and mosses is Not needed
The weedy community will be replaced by perennial weeds and by shrubs
The changes that take place during any form of succession depend on a variety of environmental factors
Succession begin with the simple plants like lichens and Mosses
Succession will involve the death of individual trees and the growth for New ones
While environmental conditions change even climax communities continue to Evolve
Change in ecological communities is a universal phenomenon
Process of change in the species Structure
The time scale can be Decades
Process by which a ecological community undergoes more or Less
Ecological succession go back to the start of the 19th Century
French naturalist Adolphe Dureau de la malle was the first to make use of the word Succession
In 1859 Henry David Thoreau wrote an address called “The succession of forests trees
developed more formal concept of succession Henry Chandler Cowles
Succession is a process of ecological
Secondary succession is far more common
A charateristic of plants is they devote a great deal of energy
Plants that make up the early stage of succession die
Soil is able to support complex plants
Larger shrubs and small trees gradually take over from early communities
In the last stage of succession taller trees begin to grow
The last stage of ecological succession is known as a climax community
A climax community is outlined that might consist of birch,white spruce, and Balsam fir
Succession is a process of ecological Change
Secondary succession occurs in an area where life once Existed
When pioneer plants die they decompose
The second stage of plants may have grasses,herbs,and small shrubs
The weedy commuinty will be replaced by perennial weeds
Ecologists refer to the last highest stage of ecological Development

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Activity 5-Ecology Crossword puzzle

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Crossword
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This crossword contains the following questions and answers:

non-living organisms in an ecosystem Abiotic
interaction between two different species living in a ecosystem symbiosis
the ratio of the number of births to the size of the population natality
the number of deaths in a given area or period mortality
living organisms in the ecosystem biotic
beneficial to both organisms mutualism
a community of interacting organisms and their physical environment ecosystem
the number of all the organisms of the same group or species population
a species that other species in the ecosystem depends on keystone species
one of the two types of biological and ecological succession of plant life primary succesion
the series of community changes which take place on a damaged habitat secondary succession
the process of certain organisms that move up the food chain biological magnification
the number of organisms a region can support without environmental issues carrying capacity
the extinction of a large number of species within a short period of time mass exstinction
a graph that shows the biomass or bio productivity at each trophic level ecological pyramid
factors that effect the size of the population density dependent factors
weather/climate that influence the population size density independent factors
environmental conditions that limit certain things for organisms in the ecosystem limiting factor
the variety of life in the world/habitat biodiversity
the important benefits for organisms that comes from species working in the ecosystem ecosystem services

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