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Ecological Succession
Ecological Succession

... Density-independent limiting factors limit a population’s growth regardless of the density. – unusual weather – natural disasters – human activities ...
Population Growth Modeling Study
Population Growth Modeling Study

... In this modeled study, I will be considering how the impact of one species affects a competitor in the same environment. Impact of a species can include various aspects of the organisms considered including size. For example, if you considered grazing animals in grassland environments, American buff ...
Ecology
Ecology

Chapter 46 PowerPoint
Chapter 46 PowerPoint

... actually uses). ...
Symbiosis
Symbiosis

... “Download for free at http://cnx.org/content/col11448/latest/.” ...
ecology 2 08
ecology 2 08

... b) bathyal zone - no p.s. - lots of migration c) abyssal zone - dark, lots of nutrients, low O2 ...
Ecological Interactions and Succession
Ecological Interactions and Succession

... Example: rocks after volcano erupts or glaciers Pioneer Species – the very first organisms that inhabit an area How do they get there? wind, water, other organisms carry them What are they? Lichens and moss ...
The ecosystem: the function of near waterways
The ecosystem: the function of near waterways

... The human being as a user of water resources The identification of environmental changes Thinking about one’s own behavior towards the environment ...
Ecosystems
Ecosystems

... •The term ‘ecology’ is derived from the Greek words oikos for ‘home’, and logos for ‘study’ and was first used in the mid 1800s. In those days, ecologists spent most of their time describing nature and less time developing models and theories as they do these days. •The ECOSYSTEM provides a framewor ...
REACH Ecology
REACH Ecology

... When the niches of two species overlap significantly, which of the following is NOT likely to happen? A. One of the species migrates B. The niche evolves to accommodate both species C. One of the species evolves D. One of the species suffers a decline in ...
Topic 2: The Ecosystem
Topic 2: The Ecosystem

Biology Chapter 14: Interactions in Ecosystems
Biology Chapter 14: Interactions in Ecosystems

...  Ecological Niche: all the physical, chemical, and biological factors that a species needs to survive, stay healthy, and reproduce.  Includes food, abiotic conditions, and behavior  Also known as the role a species plays in the community ...
Document
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... factor whose influence varies with the density of the population  Parasitism, predation, and competition  Predators kill few prey when the prey population is low, they kill more prey when the population is higher  Detected by plotting mortality against population density and finding positive slop ...
test - Scioly.org
test - Scioly.org

... 36. A population pyramid showing rapid growth a. Has a narrow base and bulges upward b. Shows an even age distribution c. Narrows steadily from its base upward d. Has a broad base and curves upward e. Has a narrow base and widens 37. According to Thompson’s Transition Model, a country in the post-in ...
Ecological Perspective BIOL 346/Ch 5 (14th New Ed) (Ch 6 Old Ed)
Ecological Perspective BIOL 346/Ch 5 (14th New Ed) (Ch 6 Old Ed)

Populations - Westford Academy Ap Bio
Populations - Westford Academy Ap Bio

Symbiotic Relationships
Symbiotic Relationships

... Saguaro Cactus and Long-eared bats. The bat benefits because the cactus flowers provide it with food and the cactus benefits because the bat carries the cactus’ pollen on its nose. Humans and bacteria in our large intestine. Bacteria helps break down food that we can’t always digest and also gives u ...
Symbiotic Relationships
Symbiotic Relationships

Unit 4 Study Guide - Effingham County Schools
Unit 4 Study Guide - Effingham County Schools

... Unit 10: Populations and Human Ecology STUDY GUIDE You can write on this sheet or on another sheet of paper. FILL IN THE FOLLOWING BLANKS WITH THE PROPER DEFINITION and/or DESCRIPTION: Populations can be described in terms of three things: 1. Population size = _______________________________________ ...
Q2 Ecology PowerPoint for Marine Bio
Q2 Ecology PowerPoint for Marine Bio

... temperatures. The fish can survive and function at temperatures outside its optimal range but its performance is greatly reduced. The fish will not survive below its lower limit of tolerance and upper range of tolerance (tolerance limits). ...
Populations
Populations

... keeps increasing ...
Population Size Factors
Population Size Factors

Lesson 3: Species in the environmental complex
Lesson 3: Species in the environmental complex

... Billings, W.D. 1952. The environmental complex in relation to plant growth and distribution. Quarterly Review of Biology 27: 251-265. Björkman, O. 1968. Carboxydismutase activity in shade-adapted species of higher plants. Physiologia Plantarum 21:1-10. *McGraw, J.B. and J. Antonovics. 1983. Experime ...
Ch52-56MustKnows-Ecology Review
Ch52-56MustKnows-Ecology Review

... relationships can affect population dynamics, relationships among interacting populations can be positive and negative, many complex relationships exist in an ecosystem and feedback control systems play a role in ecosystems). 12. A population of organisms has properties that are different from those ...
Concept Review
Concept Review

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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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