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ENVS 101 Final Exam Questions with Correct Answers. $13.49   Add to cart

Exam (elaborations)

ENVS 101 Final Exam Questions with Correct Answers.

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  • Course
  • Environmental
  • Institution
  • Environmental

ENVS 101 Final Exam Questions with Correct Answers.

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  • August 6, 2024
  • 16
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • Environmental
  • Environmental
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ENVS 101 Final Exam Questions with Correct
Answers
genetic diversty Correct Answer-variety of same genes within a species
(most important)


species diversity Correct Answer-number of diff species within a
community


ecological diversity Correct Answer-richness & complexity of a
community


phylogenetic species concept Correct Answer-defines by genetic
similarity


evolutionary species concept Correct Answer-defines by evolutionary
history


benefits of biodiversity Correct Answer-Increased productivity
ecosystem stability
existence value
economy


threats to biodiversity Correct Answer-habitat destruction
fragmentation

,invasive species
pollution
human population growth
Overharvesting
predator/pest control


endangered species act 1973 Correct Answer-protecting biodiversity for
public
Criteria for identifying at risk species
directions for recovery
assistance to landowners
enforcement
endangered, threatened, Vulnerable


ESA recovery plans Correct Answer-Stabilize or rebuild populations


umbrella species Correct Answer-require large blocks of habitat


flagship species Correct Answer-humans emotionally attatched


ESA success Correct Answer-bald eagle


ESA controversy Correct Answer-timber industry & spotted owl

, habitat protection Correct Answer-better than species protection


principles for protecting biodiversity Correct Answer-1. protect enough
habitat
2. Manage at regional scales to accomodate disturbances
3. plan over centuries
4. Allow for human use without significant degradation


community structure Correct Answer-patterns of spatial distribution of
individuals, species, & communities


Abundance Correct Answer-number of individuals of a species in an
area
high diversity = low abundance


diversity indices Correct Answer-Combine richness and abundance
(evenness)
dominance & Information
Simpson index


distribution Correct Answer-random (resources)
uniform (competition)
Cluster (protection)

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