Ecology and Ecosystems Quiz
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Questions and Answers

Which of the following best describes the concept of 'Carrying Capacity'?

  • The maximum population size an environment can sustain. (correct)
  • The variety of genetic characteristics in a population.
  • The amount of biomass available in an ecosystem.
  • The total number of species in a specific area.

What effect does habitat fragmentation have on biodiversity?

  • It increases genetic diversity within species.
  • It enhances connectivity between habitats.
  • It leads to isolated populations, reducing species diversity. (correct)
  • It decreases competition among species.

Which statement accurately reflects characteristics of R-selected species?

  • They have a high reproductive rate and rapid population growth. (correct)
  • They typically produce few offspring with high parental care.
  • They are highly specialized and occupy unique ecological niches.
  • They thrive in stable environments with little competition.

What is the primary role of a keystone species in an ecosystem?

<p>To enhance the stability and diversity of the ecosystem. (C)</p> Signup and view all the answers

In ecological succession, what is primary succession characterized by?

<p>The colonization of bare substrates by pioneer species. (D)</p> Signup and view all the answers

What is the primary difference between generalist and specialist species?

<p>Generalist species can thrive in a variety of environments, while specialist species are highly adapted to specific conditions. (B)</p> Signup and view all the answers

Which statement accurately describes trophic levels in an ecosystem?

<p>Trophic levels can represent energy transfer between different types of organisms. (B)</p> Signup and view all the answers

What impact does the edge effect have on biodiversity in fragmented habitats?

<p>It can enhance biodiversity by allowing species from adjacent environments to interact. (B)</p> Signup and view all the answers

Which of the following best characterizes biomass in an ecosystem?

<p>Biomass includes both living and decomposed organic matter within a given area. (D)</p> Signup and view all the answers

In ecological terms, what does the term 'pioneer species' refer to?

<p>Species that are usually the first to colonize barren environments during primary succession. (D)</p> Signup and view all the answers

Flashcards

Carrying Capacity

The maximum population size of a species that a particular environment can sustain indefinitely.

Biodiversity

The variety of life on Earth at all its levels, from genes to ecosystems.

Trophic Level

An organism's position in a food chain or web.

Ecosystem Services

The benefits people obtain from ecosystems.

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Primary Succession

Ecological succession occurring on a previously uninhabited substrate.

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Provisioning Services

Benefits people obtain from ecosystems that are directly consumed, such as food, water, and timber.

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Habitat Fragmentation

The division of a large, continuous habitat into smaller, isolated patches.

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Edge Effect

The changes in species composition and abundance that occur at the boundary between two habitats.

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Genetic Diversity

The variety of genes within a species.

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Population Bottleneck

A sharp reduction in population size due to a random event, such as a disease outbreak or natural disaster.

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Study Notes

Ecosystem Services

  • Provisioning services
  • Regulating services
  • Supporting services
  • Cultural services

Soil

  • Texture pyramid
  • Horizons

Carrying Capacity

  • Habitat Fragmentation
  • Edge effect

Biodiversity

  • Genetic diversity
  • Species diversity
  • Ecosystem/habitat diversity

Population Bottleneck

  • Founder effect

Terrestrial Biomes

  • Taiga/Boreal Forest
  • Temperate Rainforest
  • Temperate seasonal forest
  • Tropical Rainforest
  • Shrubland/woodland/chaparral
  • Temperate grassland
  • Savanna
  • Tropical seasonal forest
  • Desert
  • Tundra

Species

  • Generalist species
  • Specialist species
  • Invasive species
  • Keystone species
  • Trophic cascade
  • Trophic level
  • Biomass
  • 10% rule

Productivity

  • Primary productivity
  • Gross primary productivity
  • Net primary productivity

Ecological Succession

  • Primary succession
  • Secondary succession
  • Pioneer species
  • Climax community

Species types

  • R-selected species
  • K-selected species

Survivorship Curves

  • Type I
  • Type II
  • Type III

Feedback Loops

  • Positive feedback loops
  • Negative feedback loops

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Description

Test your knowledge on various ecological concepts, including ecosystem services, biodiversity, and different biomes. This quiz covers topics such as carrying capacity, species types, and ecological succession. Challenge yourself and explore the intricate relationships within ecosystems.

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