• Study Resource
  • Explore
    • Arts & Humanities
    • Business
    • Engineering & Technology
    • Foreign Language
    • History
    • Math
    • Science
    • Social Science

    Top subcategories

    • Advanced Math
    • Algebra
    • Basic Math
    • Calculus
    • Geometry
    • Linear Algebra
    • Pre-Algebra
    • Pre-Calculus
    • Statistics And Probability
    • Trigonometry
    • other →

    Top subcategories

    • Astronomy
    • Astrophysics
    • Biology
    • Chemistry
    • Earth Science
    • Environmental Science
    • Health Science
    • Physics
    • other →

    Top subcategories

    • Anthropology
    • Law
    • Political Science
    • Psychology
    • Sociology
    • other →

    Top subcategories

    • Accounting
    • Economics
    • Finance
    • Management
    • other →

    Top subcategories

    • Aerospace Engineering
    • Bioengineering
    • Chemical Engineering
    • Civil Engineering
    • Computer Science
    • Electrical Engineering
    • Industrial Engineering
    • Mechanical Engineering
    • Web Design
    • other →

    Top subcategories

    • Architecture
    • Communications
    • English
    • Gender Studies
    • Music
    • Performing Arts
    • Philosophy
    • Religious Studies
    • Writing
    • other →

    Top subcategories

    • Ancient History
    • European History
    • US History
    • World History
    • other →

    Top subcategories

    • Croatian
    • Czech
    • Finnish
    • Greek
    • Hindi
    • Japanese
    • Korean
    • Persian
    • Swedish
    • Turkish
    • other →
 
Profile Documents Logout
Upload
Interactions Among Living Things Listening Bingo
Interactions Among Living Things Listening Bingo

... grow, and reproduce is called its habitat. Several species can live in the same habitat but will use the resources in different ways. ...
Common Name (Scientific name)
Common Name (Scientific name)

... Caves may occur on the preserve but are likely rare. Rocky outcrops and ridgelines do occur but are rarely large enough to accommodate the development of a substantial cavern. ...
Evaluating Biodiversity in Fragmented Landscapes
Evaluating Biodiversity in Fragmented Landscapes

... (and particularly core habitat) and increases patch isolation. According to a number of scientific theories, such as island biogeography (MacArthur and Wilson, 1967) and metapopulation2 dynamics (Hanski, 1998), the reduction in area may lead to increased local extinctions, while increased isolation ...
Chapter 6 - ltcconline.net
Chapter 6 - ltcconline.net

... (N) Population – total number of all the members of a single species living in a specific area at the same time. (r) Rate—This is the rate of growth; the number of individuals which can be produced per unit of time under ideal conditions (with no limits to the population’s growth). (t) Time—This is ...
population ecology - Ms Williams
population ecology - Ms Williams

... population will decrease, cannot compete successfully for food. One winter a huge blizzard wiped out a northeastern forest population of white rabbits. How would the carrying capacity of the wolf population (that preys upon those rabbits) be affected? The wolf population would decrease to do a decre ...
Understanding Our Environment
Understanding Our Environment

... (N) Population – total number of all the members of a single species living in a specific area at the same time. (r) Rate—This is the rate of growth; the number of individuals which can be produced per unit of time under ideal conditions (with no limits to the population’s growth). (t) Time—This is ...
population ppt ch 4 - Mayfield City Schools
population ppt ch 4 - Mayfield City Schools

... Influence does not change with population density. e.g., natural disasters, manmade disasters ...
Ecology Part 2
Ecology Part 2

... The change in an ecosystem that happens when one community replaces another as a result of changing biotic and abiotic factors ...
Article - American Arachnology
Article - American Arachnology

... There are several possible explanations for the decreased numbers of Vaejovis on the flats . One is that cliffs represent better habitat for the two Vaejovis species studied here . A second is that both Vaejovis species are excluded from the flatland habitat b y competition with P. utahensis . These ...
Carrying Capacity
Carrying Capacity

... male and the alpha female, and these two pack members determine when the pack hunts, moves location, or stays in an area. The leaders of the pack are usually the pack members with the most experience in hunting and defending territory. The other pack members have roles within this pack to help the p ...
Ecology 3 Population Ecology Ppt
Ecology 3 Population Ecology Ppt

... • Natural populations don’t grow exponentially for long. Sooner or later, something stops exponential growth. ...
Study Guide B - Fort Bend ISD
Study Guide B - Fort Bend ISD

... 1. When resources are abundant in a particular area, individuals may move into the population of this area. This movement of individuals into a population from a different population is called _________________. 2. A very cold winter has left many deer in a population hungry and sick. By the end of ...
Economic Impacts of Critical Habitat Designation
Economic Impacts of Critical Habitat Designation

... • Critical Habitat can include areas occupied by the species, or those that are outside the geographical area occupied by the species at the time it is listed, but determined to be essential for the conservation of the species. • Critical habitat may be established for species now listed as threaten ...
Document
Document

... Why doesn’t the population ever go above 18? ...
Population Ecology
Population Ecology

... Number of individuals per unit area How do we measure population density? impossible to count all individuals in a population  estimated by indirect indicators  number of bird nests ...
Home range
Home range

... individuals into patches should be that distribution at which, if any individual moved to the patch she was not in, she would suffer a reduced payoff! • In this case, it is if any individual moved from H1 to H2 or visa versa, it would obtain fewer resources as a result of its move. ...
Unit6 StudyGuide
Unit6 StudyGuide

... - Consumers – organisms that consume other living things for energy (heterotrophic) - Herbivore – consumer that eats plants - Carnivore – consumer that eats animals - Omnivore – comsumer that eats both plants and animals - Decomposer – consumer that breaks down living/dead organic matter - Detritivo ...
Chapter 10 Ecosystems LIMITING FACTORS
Chapter 10 Ecosystems LIMITING FACTORS

... area can support. If more organisms were to come, they would not have enough food for all to survive. A population usually stays near it’s carrying capacity because of the limiting factors. ...
Density-independent - Lee County Schools
Density-independent - Lee County Schools

... The population densities of all the classes is now the same. The school is sponsoring an event that allows students to miss 1rst, 2nd, and 4th periods. ...
AP Biology Population Ecology
AP Biology Population Ecology

... individuals from a population  birth  death  immigration  emigration ...
Chapter 6 PowerPoint
Chapter 6 PowerPoint

... Minimum Viable Population is the minimum population size required for long-term survival of a species.  The number of grizzly bears in North America dropped from 100,000 in 1800 to 1,200 now. The animal’s range is just 1% of what is once was and the population is fragmented into 6 separate groups. ...
Unit 5
Unit 5

... Questions from ecology form a continuum with those from other areas of biology such as genetics, physiology, evolution, and other sciences such as chemistry, physics, and geology. 2. Describe the relationship between ecology and evolution. Evolution can be described as a change in a population over ...
Wildlife corridors - natural resource management information note
Wildlife corridors - natural resource management information note

... decline across the landscape. A holistic approach is required across both public and private lands to protect and manage natural ecosystems and ensure connectivity between remaining habitats. When native vegetation is cleared, fragmented patches or islands are created. These patches may become incre ...
Early draft of multi-state SAFE Proposal
Early draft of multi-state SAFE Proposal

... conservation need and high priority habitats of the Oklahoma Comprehensive Wildlife Strategy. Within the Mixed-Grass Prairie Region described in the Oklahoma Comprehensive Wildlife Conservation Strategy, the mixed-grass prairie and the sand sagebrush/bluestem shrubland are two of the four highest pr ...
No Slide Title
No Slide Title

... • Reproducing early shortens the generation time, or the average time it takes a member of the population to reach the age when it reproduces. ...
< 1 ... 67 68 69 70 71 72 73 74 75 ... 129 >

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.
  • studyres.com © 2025
  • DMCA
  • Privacy
  • Terms
  • Report