Subject: Lessons Learned from Construction of California Clapper Rail Earthen High Tide Refuge Islands
H. T Harvey & Associates (HTH) monitored construction of 6 pilot earthen high tide refuge islands (hereafter “earthen islands”) built to enhance California clapper rail (Rallus longirostris obsoletus) habitat. One pilot earthen island was constructed at each of the following locations: (1) Coole...
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| Format: | Text |
| Language: | English |
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2013
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| Online Access: | http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.697.4090 http://www.spartina.org/documents/5EarthenIslandsLessonsLearned_040813-HTH.pdf |
| Summary: | H. T Harvey & Associates (HTH) monitored construction of 6 pilot earthen high tide refuge islands (hereafter “earthen islands”) built to enhance California clapper rail (Rallus longirostris obsoletus) habitat. One pilot earthen island was constructed at each of the following locations: (1) Cooley Landing, (2) Belmont Slough South, (3) Belmont Slough North, (4) Bird Island, (5) Bair Island northwest, and (6) MLK/New Marsh (Geographic coordinates provided in Table 1, Appendix A). In this memorandum, we provide a record of construction methods, as-built topographic data, a summary of lessons learned during pilot earthen island construction and illustrative photos (Appendix A). In addition, we include the following products on the CD submitted with this memorandum: • Photos from fixed photo-point locations with directions to re-occupy photo-points. • An Excel file with as-built topographic data of earthen islands and excavation areas. • An Excel file with gumplant (Grindelia stricta) planting measurements. • A Google Earth KMZ file with earthen island, excavation and elevation control point locations. Future monitoring will be used to determine gumplant planting success and measure changes in earthen island and excavation area topography. |
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