Tag Archives: fragmentation

Restoration Notes from the Field – The “Silver Bullet”

Habitat loss and fragmentation are the greatest threats to species biodiversity. In our nation’s more arid environments, the vast bulk of all biodiversity is found in the increasingly fragile riparian buffers of our watersheds.  Healthy floodplains and other ecosystem functions rely directly on vital intact buffers.  For these important reasons, conservation and restoration activities must increasingly focus on repair, renewal, and preservation of these precious riparian areas. 

While some may see only the surface of the water, Trout Headwaters’ Team, looks holistically at landscapes and watersheds, striving always to leverage the true “silver bullet” of restoration – prudent resource management and maintenance.  And while so-called “active” stream and wetland restoration can play a role in effecting ecological improvement within our watersheds, no degree of manipulation will overcome poorly conceived or poorly implemented long-term management.

Cost-effective strategies for stream, river and wetland restoration, management and maintenance have been our firm’s hallmark since 1996. To learn more >Contact Us

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What Should Be Done to Restore Native Species?

Over the past year, visitors to the EcoBlu blog have been reading about the “Native Fish Restoration” projects ongoing in Montana and elsewhere.  These controversial projects involve clear-cutting the aquatic ecosystem with poison and then restocking with a fish monoculture.  Increasingly, government agencies and conservation groups are promoting the 60-year-old practice as necessary to avoid species extinction at the hands of so-called “invasive” or  “non-native” fish.

It is widely known that habitat destruction is the single greatest factor contributing to the current global species extinction problem (Pimm & Raven, 2000, pp. 843-845), NOT threats by invasive species Habitat loss is due to growth of human populations including increased impacts resulting from agriculture and development.

Habitat destruction isthe process in which natural habitat is rendered functionally unable to support the species present. In this process, the organisms which previously used the site are displaced or destroyed, reducing biodiversity.”  If this sounds like a description for many ”native fish restoration” management plans,  it is.

The crude and outdated technique of poisoning waterways and stocking fish from hatcheries further damages these critical at-risk native habitats.  And while the technical simplicity of these “native fish restoration plans” may appear initially attractive, the poisoning/stocking efforts do not reduce habitat loss, do not reduce habitat damage, and do not diminish habitat fragmentation.

Clearly, our priority should be to do what was recommended by scientists writing in the Journal of Wildlife Management in 1997:  “Conservation efforts should be aimed foremost at stopping habitat loss and at habitat restoration.”  This solid and implementable native species conservation recommendation promotes biodiversity (and ecosystem integrity, resiliency and stability) ultimately helping to prevent extinctions.

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