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Population ecology

Population Growth Questions

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Bio 270 Practice Population Growth Questions 1 Population Growth Questions Answer Key 1. Distinguish between exponential and logistic population growth. Give the equations for each. Exponential growth is continuous population growth in an environment where resources are unlimited; it is density-independent growth. dN/dt = rN where, dN/dt = change in population size; r = intrinsic rate of increase (= per capita rate of increase and equals birth rate minus death rate); N = population size. Nt = Noert where, Nt = population size at time t; No = original population size, r = intrinsic rate of increase and t = time Logistic growth is continuous population growth in an environment where resources are

Living in the Environment 16th Ed. : Ch.5 Key Terms

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Chapter 5 age structure A population?s age structure?the proportions of individuals at various ages?can have a strong effect on how rapidly it increases or decreases in size. biotic potential Species vary in their biotic potential or capacity for population growth under ideal conditions. carrying capacity (K) Together, biotic potential and environmental resistance determine the carrying capacity (K): the maximum population of a given species that a particular habitat can sustain indefinitely without being degraded. coevolution

Population Problems

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AP Biology Population Practice Problems dN/dt = rN = B-D dN/dt = rN(K-N/K) There is a population of tigers that has 100 individuals. In one month, there are 12 births and 22 deaths. Calculate the individual growth rate. A population of 500 mealworms exhibits logistic growth. If the carrying capacity is 450 mealworms and r = 0.1, what is the population growth rate? In other words, how many individuals are added/lost to the population in one generation? You collect the following information during a one-year period. There are at the start of the year 1,000 deer on the island; 120 deer die, 200 deer are born, 20 immigrate, and 10 emigrate. Calculate the growth rate.

Population Problems

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AP Biology Population Practice Problems dN/dt = rN = B-D dN/dt = rN(K-N/K) There is a population of tigers that has 100 individuals. In one month, there are 12 births and 22 deaths. Calculate the individual growth rate. A population of 500 mealworms exhibits logistic growth. If the carrying capacity is 450 mealworms and r = 0.1, what is the population growth rate? In other words, how many individuals are added/lost to the population in one generation? You collect the following information during a one-year period. There are at the start of the year 1,000 deer on the island; 120 deer die, 200 deer are born, 20 immigrate, and 10 emigrate. Calculate the growth rate.

Population Ecology Lab

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Zoe Collins Mrs. G AP Bio Population Ecology Lab Introduction: For any population, a wide range of conditions can influence population size. Some of these conditions include environmental changes such as weather, habitat quality, and food availability. Other conditions involve interactions with competing populations of other species, and predator-prey relationships.

Ch 2 Cultural Landscape

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Term Definition British Received Pronunciation (BRP) The dialect of English associated with upper-class Britons living in the London area and now considered standard in the United Kingdom. Creole or creolized language A language that results from mixing of a colonizer's language with the indigenous language of the people documented. Dialect A regional variety of a language distinguished by vocabulary, spelling, and pronunciation. Ebonic Dialect spoken by some African Americans. Extinct language A language that was once used by people in daily activities but is no longer used. Franglais A term used by French for English words that have entered the French language Ideograms

Population Ecology PPT

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Population ecology is the study of populations in relation to environment, including environmental influences on density and distribution, age structure, and population size Concept: Dynamic biological processes influence population density, dispersion, and demographics A population is a group of individuals of a single species living in the same general area Density and Dispersion Density is the number of individuals per unit area or volume Dispersion is the pattern of spacing among individuals within the boundaries of the population Environmental and social factors influence spacing of individuals in a population Density: A Dynamic Perspective In most cases, it is impractical or impossible to count all individuals in a population

Rocklin High School Notes

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19-2:??Ecology of Organsims I.???????????????????Biotic & Abiotic factors?=?Living & non-living factors in an environment that affect an organism. ??????????? *Name the important abiotic factors: temperature, humidity, pH, salinity, oxygen concentration, sunlight, availability of nitrogen, precipitation *How are?biotic?and?abiotic?factors not independent? ?organisms can change environments, and environments can change organisms A.? Name the three different ways that the environment has changes in temperature: it can vary with time, or by place, or by location within a habitat (shade or sun) B.? Draw the?tolerance curve?from page 369 (fig 19-8): ?
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