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Ecology - bulldog biology
Ecology - bulldog biology

... Richness and Diversity Species richness – the number of species in a community Species diversity – number of species in a community relative to the abundance of each species ...
LECTURE OUTLINE
LECTURE OUTLINE

... 33.3 Regulation of Population Growth Members of opportunistic populations are small in size, mature early, and have a short life span. Equilibrium pattern organisms are fairly large, slow to mature, and have a fairly long life span. Abiotic factors, such as weather and natural diseases, are density- ...
Marine Communities
Marine Communities

...  A a factor that limits and organisms success in a community.  Prevents organism from feeding, growing, reproducing, defending itself, or sensing danger. ...
Interactions among species
Interactions among species

... No two species can occupy exactly the same niche in exactly the same habitat at exactly the same time. If there are two species, one will be better at competing for limited resources and will eventually exclude the other species. ...
COMMUNITY AND POPULATION ECOLOGY
COMMUNITY AND POPULATION ECOLOGY

... Succession in lakes filling in to form bogs and then meadows. ...
Competitive Exclusion
Competitive Exclusion

... among all populations in a common environment ...
Chapter 14 Interaction in Ecosystems Study Guide
Chapter 14 Interaction in Ecosystems Study Guide

5-2
5-2

Sc9 - a 1.2 (teacher notes)
Sc9 - a 1.2 (teacher notes)

... 1 Identify examples of niches and describe how closely related living things can survive in the same ecosystem. 1.2 - Interdependence Each and every species depends on many other species within an environment in order to survive and prosper. Food chains and Food webs represent different types of ong ...
Evolution Project File
Evolution Project File

... This project ties together the Ecology and Evolution units. You may work by yourself or with a partner. No more than TWO people may work together! You will have several days in class to work on this assignment. This project will count as a test grade and is due on Friday, October 18. Components  A ...
Chapter 6: Communities
Chapter 6: Communities

...  Even age distribution – remain stable ...
Chapter 6: Communities
Chapter 6: Communities

...  Even age distribution – remain stable ...
12/9/10 Practice Test Exam 4
12/9/10 Practice Test Exam 4

... 12. All nonliving factors, such as temperature, light, water and nutrients are considered ____ factors influencing an environment. a. abiotic b. rocks c. biotic d. soil 13. If you place two species of bacteria that use the same food sources in a single flask, over time one will thrive and other wil ...
notes
notes

... Community interactions 3. Symbiosis---two different species live together  Mutualism- both species benefit  Commensalism- one benefits without harming ...
Niches and Competition
Niches and Competition

Ecosystem Notes
Ecosystem Notes

... Ecosystem- A system consisting of all of the interactions that occur between abiotic and biotic factors within an environment. ...
Ch 37 HW - TeacherWeb
Ch 37 HW - TeacherWeb

... 3. Review questions- number each one and answer on a separate sheet of paper. You do not need to rewrite the questions. 1. Describe the characteristics of a community & how interspecific interactions affect the dynamics of populations (p 742) 2. Explain 5 different aspects of ecological niche of hip ...
COMMUNITY INTERACTIONS
COMMUNITY INTERACTIONS

community interactions
community interactions

... coloration that allows an otherwise visible organism or object to remain indiscernible from the surrounding environment. ...
Who Lives Where?
Who Lives Where?

... Must withstand exposure to sun at low tide. ...
3.4 Ecosystem Changes
3.4 Ecosystem Changes

... b. endangered - too few individuals, extinction soon Species need 10,000 organisms to maintain evolutionary potential. c. extinct - means gone forever - when numbers drop below 1,000 for animal species and 120 species for plants, the species is considered extinct because of the problems finding mate ...
4-1 What roles do species play in an ecosystem
4-1 What roles do species play in an ecosystem

... The size of a species’ population is influenced by the following four variables: births, deaths, immigration, and emigration. CONCEPT 4-5A Population size increases because of births and immigration, and decreases through deaths and emigration. CONCEPT 4-5B The average number of children born to wom ...
NOTES ECOLOGY - Pascack Valley Regional High School District
NOTES ECOLOGY - Pascack Valley Regional High School District

Ecosystems - geo
Ecosystems - geo

How Populations Grow - Brookwood High School
How Populations Grow - Brookwood High School

... B. Population growth: increase in size of population with time. ...
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Storage effect

The storage effect is a coexistence mechanism proposed in the ecological theory of species coexistence, which tries to explain how such a wide variety of similar species are able to coexist within the same ecological community or guild. The storage effect was originally proposed in the 1980s to explain coexistence in diverse communities of coral reef fish, however it has since been generalized to cover a variety of ecological communities. The theory proposes one way for multiple species to coexist: in a changing environment, no species can be the best under all conditions. Instead, each species must have a unique response to varying environmental conditions, and a way of buffering against the effects of bad years. The storage effect gets its name because each population ""stores"" the gains in good years or microhabitats (patches) to help it survive population losses in bad years or patches. One strength of this theory is that, unlike most coexistence mechanisms, the storage effect can be measured and quantified, with units of per-capita growth rate (offspring per adult per generation).The storage effect can be caused by both temporal and spatial variation. The temporal storage effect (often referred to as simply ""the storage effect"") occurs when species benefit from changes in year-to-year environmental patterns, while the spatial storage effect occurs when species benefit from variation in microhabitats across a landscape.
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