کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4528604 1324317 2007 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Effects of edge/interior and patch structure on reproduction in Zostera marina L. in Chesapeake Bay, USA
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم کشاورزی و بیولوژیک علوم آبزیان
پیش نمایش صفحه اول مقاله
Effects of edge/interior and patch structure on reproduction in Zostera marina L. in Chesapeake Bay, USA
چکیده انگلیسی

We examined the effects of location (patch edge vs. interior) and shoot density (individual, patchy, continuous) on reproduction in three natural and two transplanted Chesapeake Bay (USA) stands of the submerged marine angiosperm Zostera marina L. (eelgrass; Zosteraceae). There were no edge effects on demographic-based reproductive effort or reproductive output (propagule production), and patch structure (individual, patchy, continuous) alone never accounted for the majority of variability in any metric. Transplant site was the most important predictor of eelgrass reproduction response, and relationships among metrics were predictable within sites. Our results suggest that, in Chesapeake Bay eelgrass, environmental factors acting at a regional scale (km) have a stronger impact on reproductive investment than those at a patch scale (1–10 m). Since tradeoffs between clonal and sexual production are mediated primarily by exogenous environmental factors, site selection may be more critical than transplant configuration for producing self sustaining stands, and achieving long-term restoration success.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Aquatic Botany - Volume 87, Issue 2, August 2007, Pages 147–154
نویسندگان
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