BIRD SPECIES RICHNESS AND DIVERSITY ALONG AN ALTITUDINAL GRADIENT IN NORTH OF ALBORZ MOUNTAIN (CASE STUDY: KHEYRUD FOREST)

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SHARIATI NAJAFABADI MITRA; KABOLI MOHAMMAD

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Journal: Journal of Natural Environment Year:2014 | Volume:66 | Issue:4 Page(s): 365-376

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Title

BIRD SPECIES RICHNESS AND DIVERSITY ALONG AN ALTITUDINAL GRADIENT IN NORTH OF ALBORZ MOUNTAIN (CASE STUDY: KHEYRUD FOREST)

Author(s)

SHARIATI NAJAFABADI MITRA | KABOLI MOHAMMAD | Issue Writer Certificate

Keywords

ALTITUDINAL GRADIENTQ2

BIRD SPECIES RICHNESS AND DIVERSITYQ2

KHEYRUD FORESTQ2

Abstract

A monotonic decline in species richness and diversity with increasing elevation has often been considered as a general pattern, but recent evidence suggests that the dominant pattern is hump-shaped or unimodal with maximum richness occurring at some mid-elevation point. This study was conducted in KHEYRUD FOREST, Mazandaran province. The study area was divided into six elevation levels according to plant communities. Sampling was carried out in mid-spring at 163 random sampling points, which were located with a minimum distance of 250 m apart, as well as a minimum distance of 25 m from the edge of forest. We applied "unlimited radius point count" using "sit and wait" method to count observed and/or heard bird species from dawn until 10:00 am, lasting on average 10 minutes, and avoiding windy and rainy weathers. Our results revealed the existence of significant differences in richness and diversity between elevation classes. Also, we found a hump-shaped pattern of BIRD SPECIES RICHNESS AND DIVERSITY against elevation, reaching the maximum at mid-elevation. These results highlight the importance of forest communities at mid-elevation in North of Alborz Mountain Range and suggest that silvicultural practices should be managed to conserve biodiversity at this elevation zone.

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APA: Copy

SHARIATI NAJAFABADI, MITRA, & KABOLI, MOHAMMAD. (2014). BIRD SPECIES RICHNESS AND DIVERSITY ALONG AN ALTITUDINAL GRADIENT IN NORTH OF ALBORZ MOUNTAIN (CASE STUDY: KHEYRUD FOREST). JOURNAL OF NATURAL ENVIRONMENT (IRANIAN JOURNAL OF NATURAL RESOURCES), 66(4), 365-376. SID. https://sid.ir/paper/194955/en

Vancouver: Copy

SHARIATI NAJAFABADI MITRA, KABOLI MOHAMMAD. BIRD SPECIES RICHNESS AND DIVERSITY ALONG AN ALTITUDINAL GRADIENT IN NORTH OF ALBORZ MOUNTAIN (CASE STUDY: KHEYRUD FOREST). JOURNAL OF NATURAL ENVIRONMENT (IRANIAN JOURNAL OF NATURAL RESOURCES)[Internet]. 2014;66(4):365-376. Available from: https://sid.ir/paper/194955/en

IEEE: Copy

MITRA SHARIATI NAJAFABADI, and MOHAMMAD KABOLI, “BIRD SPECIES RICHNESS AND DIVERSITY ALONG AN ALTITUDINAL GRADIENT IN NORTH OF ALBORZ MOUNTAIN (CASE STUDY: KHEYRUD FOREST),” JOURNAL OF NATURAL ENVIRONMENT (IRANIAN JOURNAL OF NATURAL RESOURCES), vol. 66, no. 4, pp. 365–376, 2014, [Online]. Available: https://sid.ir/paper/194955/en

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