ECOLOGY- UKY CHAPTER 20 CURRENT VERSION 2025-
2026 EXAM QUESTIONS AND ACCURATE VERIFIED
ANSWERS GRADED A+
The rate of succession can be fastest____. -Correct Answer-
-on rocks in the marine intertidal zone
When fields are abandoned, one of the first colonizing species is_____. -
Correct Answer
--crabgrass (Digitaria sanguinalis)
Sycamore creek generally has low flows; however, flash floods____.
-Correct Answer-
-remove organisms from the creek
-are a source of disturbance
-can initiate succession
Sycamore Creek in Arizona was found to be more stable in areas
with_____. -Correct Answer-
-positive vertical hydraulic gradients
Similar to forests, species richness in the intertidal zone_____. -Correct
Answer-
-increased following a logarithmic pattern
Sousa showed that succession on intertidal boulders was____. -Correct
Answer-
-similar to forest succession, species richness increased with time
Based on Johnston and Odum (1956), the changes in avian
diversity____.
-Correct Answer-
-closely resemble the increase in woody plant diversity
, In the rocky intertidal zone along the Oregon coast, the establishment of
Phyllospadix is dependent on_______. -Correct Answer-
-the presence of middle successional algae
If a community maintains its structure and function when facing
disturbance, then it it considered to be_____. -Correct Answer--resistant
In Sycamore creek, succession_____. -Correct Answer--begins after
frequent floods disturb the community
During the early states of succession in streams,____. -Correct Answer--
algal biomass increases rapidly
How does the recovery of former logging roads differ if the roads are
recontoured rather than just being abandoned? -Correct Answer--
recontoured roads recover faster
Which group of plants continue to increase in diversity throughout
primary succession? -Correct Answer--low shrubs and herbs
Based on Valett's (1994) work on Sycamore Creek, Arizona, algal
communities in upwelling zones were found to be more______. -Correct
Answer--resilient to disturbance
On the Hawaiian Islands, soil nitrogen_____. -Correct Answer--varies
almost precisely with total organic matter
The study sites at Glacier Bay, Alaska, include a set similar forest but at
different ages. This represents a ____. -Correct Answer--
chronosequence
In the Hawaiian Islands, nutrient availability changes over time
when_____. -Correct Answer--more phosphorus is retained in the
ecosystem
-phosphorus becomes the limiting nutrient
2026 EXAM QUESTIONS AND ACCURATE VERIFIED
ANSWERS GRADED A+
The rate of succession can be fastest____. -Correct Answer-
-on rocks in the marine intertidal zone
When fields are abandoned, one of the first colonizing species is_____. -
Correct Answer
--crabgrass (Digitaria sanguinalis)
Sycamore creek generally has low flows; however, flash floods____.
-Correct Answer-
-remove organisms from the creek
-are a source of disturbance
-can initiate succession
Sycamore Creek in Arizona was found to be more stable in areas
with_____. -Correct Answer-
-positive vertical hydraulic gradients
Similar to forests, species richness in the intertidal zone_____. -Correct
Answer-
-increased following a logarithmic pattern
Sousa showed that succession on intertidal boulders was____. -Correct
Answer-
-similar to forest succession, species richness increased with time
Based on Johnston and Odum (1956), the changes in avian
diversity____.
-Correct Answer-
-closely resemble the increase in woody plant diversity
, In the rocky intertidal zone along the Oregon coast, the establishment of
Phyllospadix is dependent on_______. -Correct Answer-
-the presence of middle successional algae
If a community maintains its structure and function when facing
disturbance, then it it considered to be_____. -Correct Answer--resistant
In Sycamore creek, succession_____. -Correct Answer--begins after
frequent floods disturb the community
During the early states of succession in streams,____. -Correct Answer--
algal biomass increases rapidly
How does the recovery of former logging roads differ if the roads are
recontoured rather than just being abandoned? -Correct Answer--
recontoured roads recover faster
Which group of plants continue to increase in diversity throughout
primary succession? -Correct Answer--low shrubs and herbs
Based on Valett's (1994) work on Sycamore Creek, Arizona, algal
communities in upwelling zones were found to be more______. -Correct
Answer--resilient to disturbance
On the Hawaiian Islands, soil nitrogen_____. -Correct Answer--varies
almost precisely with total organic matter
The study sites at Glacier Bay, Alaska, include a set similar forest but at
different ages. This represents a ____. -Correct Answer--
chronosequence
In the Hawaiian Islands, nutrient availability changes over time
when_____. -Correct Answer--more phosphorus is retained in the
ecosystem
-phosphorus becomes the limiting nutrient
