BIOL 1001 Chapter Notes - Chapter Final: Primary Succession, Lithosphere, Ecosystem Services

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6 Apr 2012

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Batesian mimicry- when a platable or harmless species resembles an unplatable or poisonous species. Mullarian mimicry- involves two or more unplatable species looking the same, to teach predators to stay away. Live off of and get nourishment from a host. Direct contact between two species, negatively interfere with the host. Take resources, and redouce the characteristics of survival and reproduction of host. Ecto: live on surface of host (lice and ticks) Endo: live within the host (tick worms and nimotoads). An interaction where individuals use the same limited resources, where there is a greater demand than supply for the resource. Interspecific competition: competition between individuals of different species. Intraspecific competition: competition between individuals of the same species. Conditions and resources required for a species" survival. Conditions are abiotic non-consumable elements ex: temperature, ph, humidity etc Resources are consumable requirements in an environment. A niche, is a species" functional role in an ecosystem.

Related Questions

Community Ecology

6. Competition between species is called ____________ competition. A. interspecific
B. exploitative
C. interference

D. fundamental E. intraspecific

7. A species that plays a critical role in maintaining the structure of an ecological community and helps to determine the types and numbers of various other species in the community is known as
A. a predator.

B. a keystone species. C. the primary species. D. the dominant species. E. the alpha species.

Evolution

1. We build trees because:
A. Organisms are related like members of a family are related.
B. Each lineage has a common ancestor that gave rise to that lineage. C. Characteristics are passed on from parents to offspring.
D. all of the above

2. Evolution basically denotes change in populations to: A. Improve reproductive success.
B. Remove defective individuals.
C. Increase the survival of the most fit individuals.

D. Discover better genes.

3. We can put species into groups based on shared: A. genes.
B. characteristics.
C. ecology.

D. environment.

4. Bats and birds share a common characteristic like having four limbs- homologies- with: A. Amphibians
B. Rodents.
C. Reptiles.

D. all of the above.

5. Which of these are mechanisms of evolution? A. Mutation
B. Migration
C. Gene flow

D. all of the above

6. Natural selection involves the following: A. Variation in traits
B. Differential reproduction
C. Hereditary

D. all of the above

GENETIC BASIS OF LIFE; In Batesian mimicry, a palatable species gains protection by mimicking an unpalatable one. Imagine that individuals of a palatable, brightly colored fly species are blown to three remote islands. The first island has no predators of that species; the second has predators but no similarly colored, unpalatable species; and the third has both predators and a similarly colored unpalatable species. In a short essay (100-150 words), predict what might happen to the coloration of the palatable species on each island through evolutionary time if coloration is a genetically controlled trait. Explain your predictions.

1)In the Arroyo Seco, the Western Toad feeds on beetles, bees, and small aquatic insects. The Bull Frog has been introduced and eats the same foods. The based on this information interaction between these two species can best be described as:

2)Introduced species such as the Polyphagous Shot Hole Borer can damage the communities they are introduced to by:

changing communities to have a uniform distribution

providing food for native species

increasing species richness

spreading new parasites and diseases

3)Species that compete for the same resources often switch to either use different resources or find ways to reduce competition. Why is this often true?

introduced (exotic species) are always going to be the best competitors

to avoid parasites

direct competition harms both species, even the superior competitor

competition only benefits one of the species

BIOL 1001 Chapter Notes - Chapter Final: Primary Succession, Lithosphere, Ecosystem Services

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