5433322119 | Population | Second level of complexity after the individual, composed of all individuals of a single species that live and interact in a specific area. | 0 | |
5433322120 | Community | Third level of complexity, all populations in da area. "How different species interact with each other." | 1 | |
5433322121 | Biome | Complexity level 4.5, group of ecosystems. | 2 | |
5433322122 | Ecosystem | Complexity level 3, communities exist in here, biotic+abiotic components in in a particular location. | 3 | |
5433322123 | Biosphere | Complexity level 5, Da livin world. | 4 | |
5433322124 | Dynamic | Constantly changing, used to describe populations. | 5 | |
5433322125 | Population ecology | The study of factors that cause populations to increase or decrease. | 6 | |
5433322126 | Population size | Total number of individuals within a defined area at a given time. | 7 | |
5433322127 | Population density | Number of individuals per unit area. | 8 | |
5433322128 | Population distribution | How individuals are grouped in respect to each other. | 9 | |
5433322129 | population Sex ratio | Ratio of Males:Females | 10 | |
5433322130 | Population Age Structure | How many individuals fit into particular age categories. | 11 | |
5433322131 | Density Dependent factors | Factors that impact survival and reproduction that are influenced by population size. | 12 | |
5433322132 | Limiting resource | Resource that is lacking and causes population decreases as a result | 13 | |
5433322133 | Carrying capacity | How many individuals an environment can sustain based on resources. Denoted as K | 14 | |
5433322134 | Density independent factors | Factors that affect survivability that is not affected by population of a species, like a tornado. | 15 | |
5433322135 | Population growth models | Mathematical equations that can be used to predict population size at any moment in time. | 16 | |
5433322136 | Growth rate | Number of offspring an individual can produce in a given time period minus the deaths of the individual and its offspring. | 17 | |
5433322137 | Intrinsic growth rate | Maximum potential of growth, even under perfect conditions. | 18 | |
5433322138 | Exponential growth model. | Nt=N0e^rt | 19 | |
5433322139 | Jshaped curve | The curve of an exponential graph. | 20 | |
5433322140 | Logistic growth model | A model of a population that shows initial exponential growth and then a plateau. | 21 | |
5433322141 | S Shaped curve | Curve of the logistic growth model | 22 | |
5433322142 | Overshoot | when a population grows to a size that the environment can not sustain. | 23 | |
5433322143 | Die-off | Effect of an overshoot when the extra individuals die from lack of food or other resources. Die offs and overshoots can be regular in an environment) | 24 | |
5433322144 | K-selected species | Species that have a small intrinsic growth rate so that when they reach the carrying capacity they do not have large die-offs if any because they had approached the carrying capacity gradually. Usually large species with long lives. | 25 | |
5433322145 | r selected species | Species that breed very quickly, and that have large population fluctuations because of that. | 26 | |
5433322146 | Survivorship curves | Patterns of survival that are plotted on these curves. Large species with long lives such as elephants and humans fit into type 1 survivorship curve, mosquitos and fruit flies fit into the type 3 survivorship curve and coral and squirrels that live kinda lengthy lives fit into type 2 survivorship curves. | 27 | |
5433322147 | Corridors | Strips of habitat that allow connectedness of species from population to population. | 28 | |
5433322148 | metapopulation | 2 distinct populations that are linked by occasional individuals mingling between the two groups. Protects species from extinction | 29 | |
5433322149 | Fundamental niche | range of abiotic conditions that a species can tolerate | 30 | |
5433322150 | Able to disperse | Species need to be able to get to another physical location without human intervention to be present in an area. | 31 | |
5433322151 | Competition, predation, mutualism, commensalism | Self explanatory, categories of interaction between species. | 32 | |
5433322152 | Community ecology | Study of interspecies interactions | 33 | |
5433322153 | Competitive exclusion principle | two species that are competing for the same resource cannot coexist | 34 | |
5433322154 | Resource partitioning | Two species dividing a resource based on differences in the species behavior or morphology. | 35 | |
5433322155 | Temporal resource partitioning | Species using same resource but at different times. | 36 | |
5433322156 | Spatial resource partitioning | Reducing competition by using different habitats. | 37 | |
8122409585 | clumped distribution | type of population distribution that helps protect a population from predators. | 38 | |
8122443920 | uniform distribution | found when animals are distributed equally in an ecosystem, due to limited resources or territories | 39 | |
8122789029 | r | rate of growth, found by taking the number of individuals added and dividing by the total population (f-i/i) | 40 | |
8122826492 | 0.3 (3,000/10,000) | In a colony of 10,000 penguins, 3000 are hatched. What is r? | 41 | |
8122837336 | 12,000 or (0.2 X 10,000) + 10,000 | If a colony of 10,000 penguins has a growth rate of 0.2, what will the population be at the end of the year? | 42 | |
8122853684 | CBR=68 | If Hillia has a population of 10,000 and there are 680 births during a year. What is the crude birth rate for Hillia? | 43 | |
8122868679 | False, Hawks are K selected species | Hawks are r selected species. True or False | 44 | |
8122877166 | carrying capacity | r selected species will exhibit boom and bust growth cycles and overshoot what? | 45 | |
8122882315 | J Curve or exponential growth | what type of growth curve do r-selected species generally exhibit? | 46 | |
8122886245 | True | T or F, Under ideal conditions most animals can grow exponentially | 47 | |
8122890479 | density dependent | when a predator feeds on the most abundant prey this type of predation is | 48 | |
8122895477 | density independent | Frost is what type of density factor? | 49 | |
8122906420 | 1. predators find prey easier 2. predators are able to have more offspring under these ideal conditions 3. predator nutrition is better 4. it may be easier to catch prey since they may weaken due to overshooting their carrying capacity. | In population studies we see that as prey population increases, often predator populations increase. What are some reasons for this? | 50 | |
8122919670 | mutualism, predation, competition, comensalism | Give examples of interspecific interactions. | 51 | |
8122927045 | parasitism, predation | symbiotic relationship where one is harmed and the other benefits | 52 | |
8122938228 | both species are negatively affected | interspecific competition always results in what | 53 | |
8122941617 | chemical secretions, mimicry, warning colors, camouflage | how do prey evolve to evade predators? | 54 | |
8122952608 | resource partitioning | On Daphne Island in the Galapagos, finch species evolved to feed on varying sizes of seeds from the same tree, this is an example of | 55 | |
8122955936 | competitive exclusion | when two species compete for the same resource, one species does not survive, this is called | 56 | |
8122959329 | habitat fragmentation | when areas where species live are broken up into smaller areas that are not connected we call this | 57 | |
8122969982 | keystone | sharks play a major ecological role in the ocean they are considered what type of species? | 58 | |
8122972090 | secondary since soil is still present | after a forest is clear cut, what type of succession happens? | 59 | |
8122974668 | secondary | after a forest fire what type of succession? | 60 | |
8122977199 | primary, since there is no soil | after a volcano erupts and lava covers the area what type of succession? | 61 | |
8122979512 | lichens and mosses, or pioneer species | what is the first type of life that moves into an area in primary succession? | 62 | |
8122984506 | short life span, competition for space, competition for food, early loss | what factors limit a r species ability to grow exponentially? | 63 |
Chapter 6 APES Friedland Flashcards
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