کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4388964 1618017 2015 13 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Marine silviculture: Incorporating ecosystem engineering properties into reef restoration acts
ترجمه فارسی عنوان
جنگلداری دریایی: شامل ویژگی های مهندسی اکوسیستم در اقدامات بازسازی صخره ها است
کلمات کلیدی
مرجان، رویکرد باغبانی، ایلات، مهندسین اکوسیستم، مهد کودک، پیوند
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم کشاورزی و بیولوژیک بوم شناسی، تکامل، رفتار و سامانه شناسی
چکیده انگلیسی


• The transplantation phase of the “gardening coral reefs” approach was evaluated.
• 554 Nursery-borne corals were transplanted onto a damaged reef in Eilat (Red Sea).
• Farmed transplants showed high adaptability to the degraded reef conditions.
• The farmed corals also provided new ecological niches for reef-associated fauna.
• Ecosystem engineering properties of selected coral species could advance restoration.

In the gardening approach for reef restoration, coral stocks are farmed in underwater nurseries (phase I) prior to their transplantation onto degraded reefs (phase II). The phase I aspects were already evaluated in the literature, but very little is known about the phase II outcomes. Assessing phase II feasibility, we transplanted 554 nursery-farmed colonies of two branching species (Stylophora pistillata, Pocillopora damicornis) onto five denuded knolls in Eilat (Red Sea). The performance of the transplants was compared for 17 months with 76 natal colonies and 217 colonies maintained at the coral-nursery. At the natural reef, rates of full/partial mortalities, detachment and fish herbivory were considerably higher than the nursery values. While corallivory on Pocillopora transplants was comparable to that observed in natal colonies, herbivory on Stylophora transplants increased 2.2 fold compared to natal controls. Their survivorship was similar to the survivorship observed in natal colonies in the 9 months post transplantation, but was 30% higher after 17 months. In contrast, no enhanced mortality was documented in Pocillopora transplants throughout the entire period. The detachment levels of the Stylophora and Pocillopora transplants were 3 and 10 times higher, respectively, than those observed in natal colonies, and the growth rates of the transplants were identical to the rates observed in the nursery control groups. Transplants showed a 2.5–3.3 fold increase in colonial ecological-volumes, resulting in enhanced acquired space/habitats for coral-dwelling species like Trapezia, Alpheus, Spirobranchus and Lithophaga. The successful integration of farmed transplants in Eilat’s degraded reef and their provision of new ecological niches for reef-associated fauna, coupled with economic assessments, indicate that transplantation of farmed corals is an easy, cost-effective mean to counteract degradation of coral reefs. Results also imply that the selection of coral species for reef restoration should take into consideration their autogenic/allogenic engineering properties, particularly if the aims are to restore the whole reef community, rather than simply focus on coral coverage.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ecological Engineering - Volume 82, September 2015, Pages 201–213
نویسندگان
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