COMPARISON OF FIVE DISTANCE METHODS FOR ESTIMATING DENSITY ON SHRUB COMMUNITIES IN TANG-LAYBID YAZD

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MIRJALILI A.B.; DIANATI TILAKI G.A.; BAGHESTANI MEYBODI N.

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Journal: IRANIAN JOURNAL OF RANGE AND DESERT RESEARCH Year:2008 | Volume:15 | Issue:3 (32) Page(s): 295-303

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Title

COMPARISON OF FIVE DISTANCE METHODS FOR ESTIMATING DENSITY ON SHRUB COMMUNITIES IN TANG-LAYBID YAZD

Author(s)

MIRJALILI A.B. | DIANATI TILAKI G.A. | BAGHESTANI MEYBODI N. | Issue Writer Certificate

Keywords

DENSITYQ2

TANG-LAYBIDQ3

CORNULACA MONACANTHAQ2

ARTEMISIA AUCHERIQ3

DISTANCE SAMPLING TECHNIQUESQ3

Abstract

Five DISTANCE SAMPLING TECHNIQUES used to estimate DENSITY for ARTEMISIA AUCHERI and CORNULACA MONACANTHA species in this survey include: point center quarter, closest individual, nearest neighbor, random pairs and angle order methods. Sampling was conducted within 3 (40m×100m) sampling areas selected in TangLaybid. 30 points were selected equidistant apart along 10 randomly located 100-m transects for measurement of distance within each sampling area. DENSITY obtained by each method was compared to the total count in a randomized complete design and Duncan’s test. Hopkines and Eberhardt indices were used to detect dispersion pattern of plants. The point center quarter method provided a reliable estimate of DENSITY for CORNULACA MONACANTHA in the community with DENSITY of 0.38/m2 and a clumped distribution. The nearest neighbor method gave a reliable estimate of DENSITY for ARTEMISIA AUCHERI in the communities with DENSITY of 1.8/m2 and 2.9/m2 and a tendency toward uniformity. Results showed that the point center quarter method can give reliable results in shrub communities with cover around 10% and a clumped pattern while the nearest neighbor method can give a reliable estimate in communities with cover between 16-20% and a uniform pattern.

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APA: Copy

MIRJALILI, A.B., DIANATI TILAKI, G.A., & BAGHESTANI MEYBODI, N.. (2008). COMPARISON OF FIVE DISTANCE METHODS FOR ESTIMATING DENSITY ON SHRUB COMMUNITIES IN TANG-LAYBID YAZD. IRANIAN JOURNAL OF RANGE AND DESERT RESEARCH, 15(3 (32)), 295-303. SID. https://sid.ir/paper/106975/en

Vancouver: Copy

MIRJALILI A.B., DIANATI TILAKI G.A., BAGHESTANI MEYBODI N.. COMPARISON OF FIVE DISTANCE METHODS FOR ESTIMATING DENSITY ON SHRUB COMMUNITIES IN TANG-LAYBID YAZD. IRANIAN JOURNAL OF RANGE AND DESERT RESEARCH[Internet]. 2008;15(3 (32)):295-303. Available from: https://sid.ir/paper/106975/en

IEEE: Copy

A.B. MIRJALILI, G.A. DIANATI TILAKI, and N. BAGHESTANI MEYBODI, “COMPARISON OF FIVE DISTANCE METHODS FOR ESTIMATING DENSITY ON SHRUB COMMUNITIES IN TANG-LAYBID YAZD,” IRANIAN JOURNAL OF RANGE AND DESERT RESEARCH, vol. 15, no. 3 (32), pp. 295–303, 2008, [Online]. Available: https://sid.ir/paper/106975/en

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