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What are two examples of physical environment factors causing population stabilization?
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∙ 11y ago
Physical enviromental factors are behaviors that cannot be attributed.
Wiki User
∙ 11y ago
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Explain and illustrate how the long-term survival of a species depends on resources that may be limited from time to time?
Even if a number of individuals survive, the population size may become too small for the species to continue. Small populations may have breeding problems. They are susceptible to random environmental fluctuations and genetic drift to a greater degree than are larger populations. The chance of extinction increases exponentially with decreasing population size. The MVP is the smallest population size that can avoid extinction by the two reasons listed above. If no severe environmental fluxes develop for a long enough time, a small population will recover. The MVP depends heavily on reproductive rates of the species. The environment is the ultimate cause of population stabilization. Two categories of factors are commonly used: physical environment and biological environment. Three subdivisions of the biological environment (BIOTIC factors) are competition, predation, and symbiosis. Physical environment (ABIOTIC) factors include FOOD, SHELTER, WATER supply, SPACE availability, and (for plants) SOIL and LIGHT. One of these factors may severely limit population size, even if the others are not as constrained. The LAW OF THE MINIMUM states that population growth is limited by the resource in the shortest supply. The biological role played by a species in the environment is called a niche. Organisms/populations in competition have a NICHE OVERLAP of a scarce resource for which they compete. COMPETITIVE EXCLUSION occurs between two species when competition for resources is so intense that one species completely eliminates the second species from an area. Population Decline and EXTINCTION Extinction is the elimination of all individuals in a group. Local extinction is the loss of all individuals in a population. Species extinction occurs when all members of a species and its component populations go extinct. Scientists estimate that 99% of all species that ever existed are now extinct. The ultimate cause of decline and extinction is ENVIRONMENTAL CHANGE. Changes in one of the physical factors of the environment may cause the decline and extinction; likewise the fossil record indicates that some extinctions are caused by migration of a competitor.
What are the examples of biosphere?
The examples of biosphere in the Physical Geography are: plants, animals, one-celled organisms, etc.
A community unit with its physical environment?
A community unit with a relationship between its physical environment is called an ecosystem. An ecosystem contains both abiotic and biotic factors.
Is made up of both living thing and the physical environment?
dog
The physical characteristic of an organism?
A physical characteristic of an organism are its phenotype. The phenotype comes from the organisms genes and the environment it lives in.
Influx of population had on the physical environment of the United states?
The region has grown in population overall, but that growth masks two defining population patterns.
What are three examples of nonliving factors supplied to organisms by their physical environment?
Nonliving factors that are found in an organism's physical environment are also known as abiotic factors. Abiotic factors can be physical or chemical. Examples include light, water, air, soil, and temperature. These various factors can affect different organisms in different ways.
The uneven distribution of population in russia is due to?
The uneven distribution of population in Russia is due to the physical environment. Parts of Russia are very difficult to live in, while others are ideal.
Are all physical changes reversible with examples?
Not all physical changes are reversible because most times when such changes occur parts of the substance is lost to the environment.
What does physical environment means?
it is the environment that is physical
How did new France and new Spain adapt to the physical environment in the new world?
they raped the indians to have increased population
how did new Spain and new France adapt to the physical environment in the new world?
they raped the indians to have increased population
What are examples of physical geography?
What are some examples of physical geography
Are mountains part of the physical environment?
Yes, mountains are part of the physical environment. They are large landforms that rise prominently above their surroundings and are a significant feature of the Earth's landscape. Mountains can impact local weather patterns, biodiversity, and human activities.
How can an already extant feature of physical security of a target environment be used for security purposes?
How can extant features of a target environment be adapted for security purposes (such as for detection or asset protection)? Provide specific examples.
How does physical environment effect human sediment?
how does physical environment effect human sediment?
What are some physical examples?
physical examples are examples of thing or changes or transformations which you can see with you eyes or hold with your hands.
