Freshwater Habitat Midterm

What is longitudinal connectivity?

Connectivity between up and downstream

What is lateral connectivity?

Connectivity between floodplain and riparian areas?

What is vertical connectivity?

Connectivity between groundwater and atmosphere

What is temporal connectivity?

Connectivity based on seasonality and flows

What are some ways that freshwater streams have been modified?

Dikes, levees, tide gates

Define channelization

The artificial modification, straightening, deepening, widening, or lining of a natural stream or river

What is process based restoration? What are some examples?

Reintroducing the natural processes of a habitat, ex: reintroducing a native species, such as beavers that will modify the habitat to a more ‘natural’ state, or reintroducing loose woody debris

What are some benefits of direct habitat creation vs. process based restoration?

There are specific targets and locations, and the effects are immediate and predictable

What have been some major things that altered habitat in the trinity and klamath rivers?

Logging, Hydraulic/Dredger mining, dams

What is Liebig’s law of the minimum?

The resource in the shortest supply will be the primary constraint on biological production

What issues are there with a habitat limiting factors model?

It ignores life history diversity, and assumes survival is constant when the population is below capacity

What is implementation monitoring?

Ongoing tracking of whether a restoration projected is unfolding as planned.

What does a bioassessment do?

Measure characteristics of the biological community as indicators of river health