A proposed index for estimating ecosystem diversity

Year 2020, Volume: 21 Issue: 4, 355 - 363, 29.12.2020

Kürşad Özkan

https://doi.org/10.18182/tjf.766462

Cited By: 1

Abstract

An ecosystem diversity index was proposed by the present study. The proposed index (H_wd ) considers not only the species compositions of the meta communities and their land cover areas but also heterogeneities of their geographical distributions. H_wd is therefore includes fractal dimension (w_j ) as well as Shannon-like expression of average conflict (H_d ). Estimation of ecosystem evenness was also given in the present study. With regard to ecosystem evenness (E_wd ), the proposed equation is H_wd⁄(2 ln⁡K ) since maximum fractal dimension value of a meta community equals to 2 (w_maxj=2). The purpose of the ecosystem diversity and evenness indices give the information as numerical data about the general conditions of the ecosystems. Both of the indices may therefore be employed for monitoring and comparing the ecosystems. 

Keywords

Ecology, Biodiversity, Ecosystem, Entropy

Ekosistem çeşitliliğinin hesaplanmasına yönelik önerilen bir eşitlik

Abstract

Bu çalışmada ekosistem çeşitliliğinin hesaplanmasına yönelik bir indis önerilmektedir. Önerilen indisin (H_wd ) içeriğinde meta toplumların tür kompozisyonları ve yayılış alan miktarları ile onların yayıldığı alanlardaki dağılımın heterojenliği yer almaktadır. Bu yüzden H_wd; Shannon benzeri ortalama uyuşmazlık (H_d ) ile fraktal boyutun (w_j ) birleşmesinden oluşmaktadır. Bu çalışmada ayrıca ekosistem eşitliğinin hesaplanması da verilmiştir. Bir meta toplum için maksimum fraktal boyut=2 (w_maxj=2) olduğundan, H_wd⁄(2 ln⁡K ) ekosistem eşitliği (E_wd ) değerini vermektedir. Ekosistem çeşitlilik ve eşitlik indislerinin amacı, ekosistemlerin genel durumu hakkındaki bilgiyi sayısal olarak vermektedir. Bundan dolayı ekosistemlerin birbirleri ile karşılaştırılması ve izlenmesinde bu iki indisten faydalanılabilir. 

Keywords

Ekoloji, Biyoçeşitlilik, Ekosistem, Entropi

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