[PDF] Management Plan For The Western Painted Turtle At The Sandy River Delta In Troutdale Oregon eBook

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Publisher :
Page : 0 pages
File Size : 38,44 MB
Release : 2023
Category : Floodplain management
ISBN :

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This management plan has been prepared for the Lower Columbia Estuary Partnership and is intended to provide guidance for the improvement and protection of western painted turtle (Chrysemys picta bellii) habitat at the Sandy River Delta in Troutdale, Oregon. The Sandy River Delta is a 1500-acre natural area situated where the Columbia and Sandy Rivers meet. Its dynamic floodplain habitat supports a diverse assemblage of species, including the western painted turtle, an Oregon Conservation Strategy Species. A small, unknown number of western painted turtles utilize the wetland habitats of the Sandy River Delta, and the frequency in observations of these turtles has decreased over time. The habitat utilization of western painted turtles at the Sandy River Delta has likely been influenced by changes in site hydrology, disturbance by off-leash dogs, and the presence of invasive vegetation in key turtle habitat. To create this management plan, western painted turtle habitat at the Sandy River Delta was evaluated to determine the necessary management actions for habitat improvement and protection.

Author :
Publisher :
Page : 98 pages
File Size : 40,66 MB
Release : 2016
Category : Western painted turtle
ISBN :

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Western painted turtles (Chrysemys picta belli) are found occupying Fairview Creek Headwaters (FCH) in Gresham, Oregon. This urban stream contains a large wetland with an adjacent butte, all managed by the City of Gresham. This management plan addresses the preferred habitat and population of turtles at the site. A habitat delineation of the site revealed specific locations where habitat improvements could take place as well as areas of already beneficial habitat. Two site plans were prepared showing areas of the site that could be enhanced with nesting habitat as well as additional aquatic habitat and basking habitat. A habitat study was conducted comparing the terrestrial and aquatic habitat in the northern part of the site and the southern portion of the site. The northern portion of the site, where the most turtles are seen, was found to have more bare ground, with a rush species and emergent vegetation as indicator species. The southern portion of the wetland was dominated by reed canary grass and birdsfoot trefoil. This area had high plant density with very little bare ground. The aquatic habitat in the southern portion of the wetland had less emergent vegetation and more floating vegetation. Two management plans were created for Fairview Creek Headwaters northern section of the site. The first plan is a low impact plan, focusing on nesting habitat creation along the west edge of the north wetland. Plan 2 is a more comprehensive plan which includes improving aquatic habitat and basking habitat. Seven years of mark-recapture data collected on the turtle was used to summarize findings on the turtle population. Two methods were used to estimate the population size, Lincoln Petersen and Schnabel methods.

Author : Elizabeth L. Orr
Publisher :
Page : 0 pages
File Size : 25,28 MB
Release : 2009
Category : Nature
ISBN : 9780870715730

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This revised and expanded edition of Oregon Fossils includes a record of all known fossils in Oregon going back 400 million years, along with collecting localities by county, age, rock formation, and published source. The book also provides a geologic overview of the state, from ocean beaches to the high desert, from the Blue Mountains to the Siskiyous. Unique among fossil field guides, Oregon Fossils includes both specimen identification and interesting notes about their discovery, naming, and conservation. The narrative is sprinkled with biographical sketches of paleontologists who have contributed to the state's fossil record, and the text is richly illustrated with photographs, line drawings, charts, and maps. A complete bibliography lists full citations to fossil material. The only single volume that provides Oregon's fossil record and history, Oregon Fossils is well-written, well-organized guide. It is an excellent reference for classroom and library use, for researchers, and for private collectors and hobbyists.

Author : Geological Survey (U S )
Publisher : Franklin Classics
Page : 24 pages
File Size : 21,34 MB
Release : 2018-10-12
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ISBN : 9780342596058

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This work has been selected by scholars as being culturally important and is part of the knowledge base of civilization as we know it. This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. To ensure a quality reading experience, this work has been proofread and republished using a format that seamlessly blends the original graphical elements with text in an easy-to-read typeface. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.

Author : Oregon Biodiversity Project
Publisher :
Page : 238 pages
File Size : 42,60 MB
Release : 1998
Category : History
ISBN :

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The first-ever statewide assessment of Oregon's biological diversity. With nearly seventy full-color maps.

Author : Jon Young
Publisher : Houghton Mifflin Harcourt
Page : 277 pages
File Size : 35,23 MB
Release : 2012
Category : Nature
ISBN : 0547451253

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How understanding bird language and behavior can help us to see more wildlife.