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How does the presence of a predator in a community increase the variety of species living in the community?
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How does a predator increase numbers of species in an ecosystem?
When a predator reduces the number of one species in a habitat, the population of competing species can increase. With less competition for food, water, and shelter, a species can thrive and reproduce more rapidly than when it is being out-competed.
Do invasive species increase or decrease the resilience of a biological community?
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How would the introduction of a predator species affect the stability of an ecosystem?
The introduction of a new predator can have the species eaten with no time to evolve to defend against it
What does the species richness of a community refer to?
The species richness of a community refers to the number of different species found in a community
Do the prey of one species might also be the predator of another species?
Yes.
How does a predator increase numbers of species in an ecosystem?
When a predator reduces the number of one species in a habitat, the population of competing species can increase. With less competition for food, water, and shelter, a species can thrive and reproduce more rapidly than when it is being out-competed.
A keystone species is a species whose presence does what?
A keystone species is a species whose presence has an influence on the size of the population of several other species in its community. A jaguar would be an example.
Do invasive species increase or decrease the resilience of a biological community?
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What could cause a sudden increase or decreas e in the number of species?
Having a predator that preys on that certain species or something to do with the environment conditions
How is co-evolution significant in community ecology?
because it determines whether a species will evolve to keep up with its predator or prey
How does introduction of animals affect the pond community?
Almost any animal species you introduce into a community will affect it. However, what the effect will be and how dramatic, is highly dependent on what it is you introduce. For example, if you were to introduce a predator fish into your pond community, it would greatly reduce the population of smaller fish and subsequently increase the population of the small fish's prey. This could to a number of things, from ruining the living conditions for all other species or perhaps make more food available for another species to thrive.
How will the size of a predator population affect the numbers of prey?
This will depend on the specific ecosystem and the specific predator and prey relationship being examined within that ecosystem. If, as an oversimplified example, a drought caused a reduction in edible plant foods for a prey animal, the population of said prey animal may decrease. If the prey population decreased, there would not be enough food to support the current predator population, and a number of the predators would die until a balance was reached.The overall idea is fairly simple, however. If weather conditions are favorable to the increase of the population of a prey species, then the prey species's population will increase, all other things being equal. When the population of a prey species increases, then more of the offspring of the predator species can survive, allowing the population of the predator to increase. If weather somehow decreases the population of a prey animal, then this will also reduce the population of the predator species, all other things being equal.It is important to remember, however, that ecosystems are very complicated and it is rare that a predator will only have one prey item and a prey item will have only one predator. As a result, if a changed condition caused one prey species to decrease but another one to increase, the predator population may not be affected, and so on.
How are a population and community different?
A population biologist studies the number(s) of species as they increase or decline in relation to their density or some environmental factor. Community ecologists study the numbers and interactions of all the species in a given location.
The population size of a predator species is directly controlled by?
The population size (number) of a predator species is directly controlled by the availability of a food source (prey). The more prey available, the greater growth in the number of predator species.
What is a community of species?
There isn't a community of a species, but there could be a population.
What does the species richness of a community refer to?
The species richness of a community refers to the number of different species found in a community
How would the introduction of a predator species affect the stability of an ecosystem?
The introduction of a new predator can have the species eaten with no time to evolve to defend against it
