Species Recovery & Riparian Health

Species Recovery And Riparian Health Programs

weirSanta Cruz County is home to 26 rare plant and animal species, a number of globally rare habitats, more than 850 miles of waterways, 18,000 acres of grasslands, and over 1500 acres of wetlands. However, past land use and land practices have resulted in the loss or degradation of these critical habitats. The abundance of invasive plants in Santa Cruz County poses a real threat to native plants and wildlife. Of paramount importance is the assault on riparian corridors; the unique plant community consisting of the vegetation growing near a river, stream, lake, lagoon or other natural body of water. To enhance habitat for the recovery of these species and to improve ecosystem health, the RCD has become a leader and an innovator in habitat restoration projects around Santa Cruz County and the state. For landowners interested in improving their streams, wetlands, and upland habitats, the RCD can provide services relating to the following conservation practices:

wetlandWetland Restoration: Wetlands provide food, protection from predators, and other vital habitat factors for our fish and wildlife species, including the California red-legged frog, California Tiger Salamander, and the Santa Cruz long-toed Salamander, as well as a variety of bird and terrestrial species. In addition, wetland have economic value associated with recreational and commercial uses, as well as scenic value. In addition, wetlands remove pollutants, increase groundwater recharge, and reduce flooding.

clearing-invasivesInvasive Species Removal: Invasive species are non-native plants that are marked by their ability to spread easily and rapidly, such as English ivy, which grows over native trees, depriving them of sunlight. When a riparian tree is lost, critical nesting habitat for migrating birds, shade and food for fish in the stream, and bank stabilization is also lost. Invasive species outcompete native flora, degrading habitat and impairing ecosystem functions. Strategic removal with the appropriate methods, (ie. Hand pulling, herbicide application, goats, etc.) can improve riparian health, and wetland and upland habitats.

olson-fordRemoval of Fish Passage Barriers: Salmon and other migrating fish need access to freshwater habitat for spawning and rearing. In some cases, these fish need to swim thousands of miles through the oceans and rivers to reach their destination, but they are often blocked from completing their journey by man-made barriers, such as dams and culverts. These barriers can be replaced with full span bridges or other crossings and will hopefully lead to an increase in our fish populations, returning them to levels we haven’t seen in the last few decades but hope to see again.

root-wadFish Stream Improvement: Improvement of a stream channel to create new fish habitat or to enhance existing habitat for fish in degraded streams, channels, and ditches can provide shade, control sediment, and restore spawning and rearing habitat. A number of activities can improve streams that have been modified in the past, such as strategic placement of logs, root wad, or natural rocks, re-alignment of a stream, reactivation of a floodplain, etc.

redwoodsUpland Wildlife Habitat Management: Grasslands, redwoods, oak woodlands, and other upland habitats are extremely important shelter, cover, and food for a variety of our endemic species. Restoring and/or enhancingthese areas through revegetation can restore movement corridors and enhance foraging and nesting habitat. The installation of fencing and improving water distribution can facilitate controlled grazing that can reduce dense groundcover, encouraging the germination of desirable plant species.

Sediment Managemen: Eroding streambanks or upland areas can contribute significant sediment to our streams, degrading riparian and wetland system functions. Erosion from these areas can also threaten houses and infrastructure and result in downstream flooding. There are a number of erosion control practices that can be used to protect homes, retain valuable property, and enhance habitat, such as streambank stabilization, gully restoration, and revegetation efforts.

The RCD can provide other services relating to Species Recovery and Riparian Health.

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