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Document
Document

... model for ecological response to water level/flow scenarios Blend ecological research from LOSL study with existing data and knowledge base for system ...
Pesticides and Wildlife - Michigan Water Stewardship Program
Pesticides and Wildlife - Michigan Water Stewardship Program

... Have in Common? ...
Review
Review

... o Subject of predator eradication programs sponsored by the Federal government. Prior to Endangered Species Act (1973), exterminated from the lower 48 states except for a few hundred inhabiting extreme northeastern Minnesota and a small number on Isle Royale, Michigan Grizzly Bear: o Conflict with h ...
Wildlife Workshop
Wildlife Workshop

... Wildlife – includes any living organism other than plants. Generally wildlife is neither tamed nor domesticated, and is free roaming. This includes insects, spiders, birds, reptiles, amphibians, and mammals. ...
Living Earth
Living Earth

... Coral Reef ...
Species Interactions - Iowa State University
Species Interactions - Iowa State University

... T/F There are two species of warblers that live in the same tree. They feed at the same time. Do they occupy the same niche? Lets say another bird moves into that same tree and starts living and eating, at the same time, the same things as the previous warbler. Draw a graph demonstrating competitive ...
Population Dynamics
Population Dynamics

... females may potentially give birth to up to three litters a year ...
File
File

... The number of species living within an ecosystem is a measure of its biodiversity. Many studies of natural ecosystems have demonstrated that predation reduces the effects of competition. Because predation can reduce competition, it can also promote biodiversity, the variety of living organisms p ...
Understanding Populations
Understanding Populations

... Species’ physical home Environmental factors necessary for survival Interactions with other organisms ...
Intro to Ecology
Intro to Ecology

... • Defined: Populations of many species living in the same area at the same time • Each organism has it own HABITAT – Habitat: Place where an organism lives • Each species has its own NICHE – Niche: The role/needs of a species – Ex: Termites return nutrients to the soil ...
Ecology - the study of the relationships between organisms and their
Ecology - the study of the relationships between organisms and their

... Ecology - the study of the relationships between organisms and their environment. The environment includes an organism’s its surroundings and other organisms. Ecology studies the relationships and interactions among individuals within a population and with individuals of different populations. Becau ...
5 Jargon buster terms to learn adapting extreme
5 Jargon buster terms to learn adapting extreme

... The fight for resources that are in limited supply by plants and animals in a habitat. This can be within the same population (the same species) or the same community (between different species) Crustacean Arthropod with chalky shell and jointed legs ...
Environmental Science Study Guide for Chapter 8 (Changing
Environmental Science Study Guide for Chapter 8 (Changing

... Change in population size = Births - deaths 4. Define growth rate. an expression of the increase in the size of an organism or population over a given period of time. It is the birth rate minus the death rate. 5. How can a growth rate be zero? When births and deaths are equal 6. Why do populations g ...
Chap. 16 Ecosystems
Chap. 16 Ecosystems

... the variety of organisms, their genetic differences, and the communities ...
Living Things and Their Environment
Living Things and Their Environment

... oxygen, soil • Photosynthesis… Process by which plants make food and oxygen from Carbon Dioxide ...
NICHE CONCEPT Every organism has a place to live in nature, a
NICHE CONCEPT Every organism has a place to live in nature, a

... ...
Population Size
Population Size

... through deaths and emigration. Populations gain individuals through births and immigration. ...
Ecosystem
Ecosystem

... • A niche is all strategies and adaptations a species uses in its environment. – This is how organisms obtain food, mates and protection from predators. – No two species can occupy the same niche long (one species will go extinct). ...
Chapter 19
Chapter 19

... • Habitat – the place where an organism lives • Competition – when two organisms attempt to use the same resource – Interspecific – between two different species – Intraspecific – between the same species ...
Populations And Communities
Populations And Communities

... Space occupied Since you were in grade 1, you have fish at home! In an aquarium, you have 5 goldfish in a 100L of water Pop density = 5 individuals = 0.05 fish per liter of water 100 L of water ...
Ecosystems
Ecosystems

... Using the word photosynthesis, explain why water and sunlight are two abiotic factors that are important to all organisms ...
species population community Habitat Niche
species population community Habitat Niche

... the reality that the organism must live with. For example, if the pond has dried up due to drought, the heron is in direct competition with the other birds for food and space. If competition is severe, the principle of competitive exclusion may apply. This states that no two species in a community c ...
Populations and Communities
Populations and Communities

... Parasitism – one species is benefited and the other is harmed. Doesn’t kill because it needs the host to live – Example – head lice, ringworm, tape worm, ticks ...
niche - Hicksville Public Schools / Homepage
niche - Hicksville Public Schools / Homepage

... What ecological level is this? Community The different types of populations in a given ecosystem ...
Ecology Section 1 Notes
Ecology Section 1 Notes

... Population-a group of organisms of one species living in the same place at the same time that interbreed and compete with each other for resources (ex. food, mates, shelter) ...
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Source–sink dynamics

Source–sink dynamics is a theoretical model used by ecologists to describe how variation in habitat quality may affect the population growth or decline of organisms.Since quality is likely to vary among patches of habitat, it is important to consider how a low quality patch might affect a population. In this model, organisms occupy two patches of habitat. One patch, the source, is a high quality habitat that on average allows the population to increase. The second patch, the sink, is very low quality habitat that, on its own, would not be able to support a population. However, if the excess of individuals produced in the source frequently moves to the sink, the sink population can persist indefinitely. Organisms are generally assumed to be able to distinguish between high and low quality habitat, and to prefer high quality habitat. However, ecological trap theory describes the reasons why organisms may actually prefer sink patches over source patches. Finally, the source-sink model implies that some habitat patches may be more important to the long-term survival of the population, and considering the presence of source-sink dynamics will help inform conservation decisions.
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