Group |
Functional traits |
Life history strategy |
Hypothesis |
Organisms |
1
|
Depressed body;
Relatively long-life cycle;
Low potential number of reproductive cycles;
No developed fixation structure.
|
Body shape acts as a resistance factor against the disturbance.
|
\(\psi\) high
\(\theta\) low
|
Coleoptera larvae with depressed body
|
2
|
Cylindrical body;
Relatively long-life cycle;
Low potential number of reproductive cycles;
No developed fixation structure.
|
Body shape does not confer resistance to the disturbance.
|
\(\psi\) low
\(\theta\) low
|
Coleoptera larvae with cylindrical body
|
3
|
Cylindrical body;
Relatively short life cycle;
High potential number of reproductive cycles;
No developed fixation structure.
|
Life cycle as a resilience factor.
|
\(\psi\) low
\(\theta\) high
|
Chironomidae larvae
|
4
|
Cylindrical body;
Relatively short life cycle;
Moderate potential number of reproductive cycles;
No developed fixation structure.
|
Life cycle as a resilience factor.
|
\(\psi\) low
\(\theta\) moderate
|
Ceratopogonidae larvae
|
5
|
Cylindrical body;
Relatively short life cycle;
High potential number of reproductive cycles;
Adhesive buttons for fixation.
|
Structures of fixation as a resistance factor and life cycle as a
resilience factor.
|
\(\psi\) moderate
\(\theta\) high
|
Empididae and Simuliidae larvae
|
6
|
Cylindrical body;
Relatively moderate life cycle;
Moderate potential number of reproductive cycles;
No developed fixation structures.
|
Organisms sensitive to disturbances by carrying and by injury.
|
\(\psi\) low
\(\theta\) moderate
|
Baetidae larvae
|
7
|
Depressed body;
Relatively moderate life cycle;
Moderate potential number of reproductive cycles;
No developed fixation structures.
|
Organisms sensitive to disturbances by carrying and by injury, but with
hydrodynamic body as a resistance factor.
|
\(\psi\) moderate
\(\theta\) moderate
|
Leptohyphidae, Leptophlebiidae and Plecoptera
|
8
|
Cylindrical body;
Relatively high life cycle;
Low potential number of reproductive cycles;
Well-developed hooks for fixation.
|
Organisms with appendixes (anal claws) as resistance factor.
|
\(\psi\) very high
\(\theta\) low
|
Gyrinidae (larvae), Megaloptera and some Trichoptera
|
9
|
Cylindrical body;
Relatively moderate life cycle;
Low potential number of reproductive cycles;
Construction of shelters.
|
Organisms that build shelters to resist the disturbance.
|
\(\psi\) very high
\(\theta\) moderate
|
Calamoceratidae, Hydroptilidae, Leptoceridae and Odontoceridae.
|