کد مقاله کد نشریه سال انتشار مقاله انگلیسی ترجمه فارسی نسخه تمام متن
5741273 1412215 2017 5 صفحه PDF ندارد دانلود کنید
عنوان انگلیسی مقاله
On some properties of the Bray-Curtis dissimilarity and their ecological meaning
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم کشاورزی و بیولوژیک بوم شناسی، تکامل، رفتار و سامانه شناسی
پیش نمایش صفحه اول مقاله
On some properties of the Bray-Curtis dissimilarity and their ecological meaning
چکیده انگلیسی

•We examine some basic properties of the Bray-Curtis (BC) dissimilarity.•We first suggest an additive decomposition formula for the BC coefficient.•Next we derive a general formula of dissimilarity which includes the BC dissimilarity as special case.•Finally we show that the BC coefficient exhibits a linear response to the transfer of species abundances from an abundant plot to a less abundant plot.

In this paper, we examine some basic properties of the Bray-Curtis dissimilarity as compared with other distance and dissimilarity functions applied to ecological abundance data. We argue that the ability of every coefficient to measure species-level contributions is a fundamental requirement. By suggesting an additive decomposition formula for the Bray-Curtis coefficient we derive a general formula of dissimilarity, which includes the Canberra distance and the Bray-Curtis dissimilarity as special cases. A similar general formula is also proposed for the Marczewski-Steinhaus coefficient. Finally, using a modified version of Dalton’s principle of transfers, we show that the Bray-Curtis coefficient and the city-block distance exhibit a linear response to the transfer of species abundances from an abundant plot to a less abundant plot. At the other extreme, the chord and the Hellinger distances show an irregular and non-monotonic behavior.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ecological Complexity - Volume 31, September 2017, Pages 201-205
نویسندگان
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