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Iranian Journal of Applied Ecology
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2476-3217
2017-12
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13
article
Multi-Scale Modeling of Foraging Habitat Suitability for Egyptian Vulture in Arasbaran Protected Area, Iran
Nader Habibzadeh
Habibzadeh@iaut.ac.ir
1
Reza Hasanalizade
rhasanalizade@yahoo.com
2
Dept. of Environ., Tabriz Branch, Islamic Azad Univ., Tabriz, Iran.
Young Researchers and Elite club, Tabriz Branch, Islamic Azad Univ., Tabriz, Iran.
The study aim was to predict foraging habitat suitability for Egyptian vulture as an endangered species in Arasbaran protected area. We studied the effects of 12 environmental covariates measured at seven spatial extents (0.5 -15 km) and two non-scalar environmental variables on foraging habitat of Egyptian vulture. A univariate model was applied to discern at which scale the variables show their best performance. Multi-scale model, combining variables measured at their best performing spatial scales, was used to predict feeding habitat suitability. The modeling was performed using 25 feeding sites compiled through 2001 to 2015 based on ensemble forecasting approach. The result indicated that distance to settlements and the proportion of mosaic cropland /natural vegetation at the 8-km radii buffer extent were the most important feeding habitat components. The probability of foraging areas increased in the vicinity of settlements where contain low cover of mosaic cropland /natural vegetation within 8-km radii extent. The preference of Egyptian vulture to selecting the feeding sites in areas in equivalent size of the species home range, which includes mosaics of natural vegetation and agriculture, indicates the importance of juxtaposition of different natural and human habitats in this range to enhance foraging habitat suitability.
http://ijae.iut.ac.ir/article-1-794-en.pdf
Ensemble model
Extent
Neophron percnopterus
SAHM-VisTrails.
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Iranian Journal of Applied Ecology
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2476-3217
2017-12
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15
27
article
Quantitative and Spatial Analysis of the Spatial Pattern of Wild Cherry (Prunus avium L.) in Hyrcanian Forests of Iran (Case Study: Forest Management Plan of Hajikola-Tirankoly)
Mehdi Heydari
m_heydari23@yahoo.com
1
Shirzad Geraili
shirzad.forest77@gmail.com
2
Ziba Pirmohammadi
pirmohammadiz2020@gmail.com
3
Arash Karami
shirzad.forest77@gmail.com
4
Behrooz Naseri
shirzad.forest77@gmail.com
5
University of Ilam
Dept. of Forest Sci., Faculty of Agric., Ilam Univ., Ilam. Iran.
Dept. of Forest Sci., Faculty of Agric., Ilam Univ., Ilam. Iran.
Dept. of Forest Sci., Faculty of Agric., Ilam Univ., Ilam. Iran.
Dept. of Forest Sci., Faculty of Agric., Ilam Univ., Ilam. Iran.
Knowing spatial pattern of plant communities is necessary to recognition of forest ecology and management. In order to investigation on the spatial distribution pattern of wild cherry, forest management plan of Hajikola-Tirancoly in Mazandaran Province was selected. The locations of Prunus avium L.individuals with 100% inventory were recorded through GPS equipment in three areas of case study such as: Fagus type, protective area and plantation area. Qualitative characteristic of trees crown (symmetrical or unsymmetrical) and diameter at breast height was recorded. In order to achive spatial structure, landscape analysis and metrics in class level ( with symmetrical and unsymmetrical crown) was applied using Fragstats and Arc Gis softwares. The results indicated that number of Prunus avium L. were 160 trees in our case study. Highest and lowest distance among trees was observed 67 and 121 meters, respectively. The results of metrics analysis showed that the distribution pattern of wild cherry in Fagus type was clumped pattern and protective area was uniform. The results of metrics Shannon- Wieners evenness (uniformity) and Simpson’s diversity showed that the highest diversity and spatial arrangement was in Fagus type.
http://ijae.iut.ac.ir/article-1-705-en.pdf
FRAGSTATS
Hyrcanian forests
Landscape ecology
Metrics
Spatial pattern
Wild cherry.
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Iranian Journal of Applied Ecology
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41
article
Investigation of environmental factors influence on Gundelia tournefortii L. distribution in Isfahan province
Abdolah Salehi Ardali
1
Mohammad Reza Vahabi
2
Mostafa Tarkesh Isfahani
3
Saeid Pourmanafi
4
Elham Ghehsareh Ardestani
elham.ghehsareh@nres.sku.ac.ir
5
Hamid Reza Farhang
6
Dept. of Range and Watershed Manage., Faculty of Natur. Resour., Isf. Univ. of Tech., Isfahan, Iran.
Dept. of Range and Watershed Manage., Faculty of Natur. Resour., Isf. Univ. of Tech., Isfahan, Iran.
Dept. of Range and Watershed Manage., Faculty of Natur. Resour., Isf. Univ. of Tech., Isfahan, Iran.
Dept. of Environ. Sci., Faculty of Natur. Resour., Isf. Univ. of Tech., Isfahan, Iran
Dept. of Range and Watershed Manage., Faculty of Natur. Resour. and Geo. Sci., Shahrekord Univ., Shahrekord, Iran.
Vegetation is the most important factor influencing the sustainability of rangeland ecosystems. Therefore, it is important to understand the environmental factors and their effect on vegetation and restoration of rangeland ecosystems. The aim of this study was to identify factors influencing on Gundelia tournefortii L. distribution. Accordingly, the information of Gundelia tournefortii L. was determined in six habitats in Isfahan province. Random- systematic sampling was conducted to calculate canopy and density of the species. In each rangeland place, climate, physiography and soil factors were identified. RDA ordination analysis using CANOCO software was used to investigate the vegetation relationship with environmental factors. In the cluster analysis and RDA ordination analysis, six main habitats of the species were classified into three groups. The first axis of ordination showed a very strong correlation with canopy cover and density and the second axis showed a very strong correlation with soil depth. According to study of the habitats of this species, annual precipitation about 250 to 500 mm, altitude 2300 to 2500 meter, slope about 10 to 40 percent and average of annual temperature about 10 ̊C to 12 ̊C are appropriate for presence of this species.
http://ijae.iut.ac.ir/article-1-820-en.pdf
Investigation of Environmental Factors Influence on Gundelia tournefortii L. Distribution in Isfahan Province
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Iranian Journal of Applied Ecology
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55
article
Study of Tree and Shrub Species Diversity in Forestry Plans with Different Forest Management
nooreddin noorian
noorian.86@gmail.com
1
Shaeban Shataee
shataee@yahoo.com
2
Jahangir Mohamadi
jahangir.mohamadi@gmail.com
3
Dept. of Forestry, Gorgan Univ. of Agric. Sci. and Natur. Resour., Gorgan. Iran.
Dept. of Forestry, Gorgan Univ. of Agric. Sci. and Natur. Resour., Gorgan. Iran.
Dept. of Forestry, Gorgan Univ. of Agric. Sci. and Natur. Resour., Gorgan. Iran.
The aim of this research was to investigate the diversity of tree and shrub species in forestry plan in a watershed and in almost the same ecological conditions but different in forest management plan in the part of Golestan province forest. To this end, the 6675 hectares of the watershed number of 85 in 5 different plans in series one (30-year forestry plan with University Scientific Management), series two Doctor Bahramnia (without implementation and protection), series four Shamoshak, Naharkhoran plan and Sad Abad plan were selected. Inventory grid was designed by a systematic cluster sampling method with 239 circle plots in the study area. In each sample, species composition and diameter at breast height of trees and shrubs were measured. Species diversity in different series, were performed by calculating the heterogeneity indices, species richness and evenness. Statistical analysis of significant differences between the values of biodiversity of woody species among different series was performed by Duncan’s test. The results showed that biodiversity of woody species in the one and two series of Shastkalateh forest under academic management was better than other plans and forestry plan of Naharkhoran is in an unfavorable situation in terms of diversity indices.
http://ijae.iut.ac.ir/article-1-767-en.pdf
Biodiversity
Golestan province
Hyrcanian forest
Management.
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Iranian Journal of Applied Ecology
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70
article
Changes in the Distribution of Plant Species in the Ecological Niche in Various Stages of Succession
Mohsen Faal Feizabadi
mo.faal65@gmail.com
1
Pejman Tahmasebi
Pejman.tahmasebi@nres.sku.ac.ir
2
Reza Omidipour
R.omidipour@stu.sku.ac.ir
3
Elahe Zafarian
elahezafarian.sku@gmail.com
4
Dept. of Rangeland and Watershed Manag., Faculty of Natur. Resour. and Earth Sci., Shahrekord Univ., Shahrekord, Iran.
Dept. of Rangeland and Watershed Manag., Faculty of Natur. Resour. and Earth Sci., Shahrekord Univ., Shahrekord, Iran.
Dept. of Rangeland and Watershed Manag., Faculty of Natur. Resour. and Earth Sci., Shahrekord Univ., Shahrekord, Iran. Member of Young Researcher and Elite club.
Dept. of Rangeland and Watershed Manag., Faculty of Natur. Resour. and Earth Sci., Shahrekord Univ., Shahrekord, Iran.
Variation along the successional stage of a plant community is not limited to plant composition and diversity but also related to nutrient resources and plant species abundance distribution. Therefore, the use of models that consider the distribution of ecological niches in addition to the relative frequency of species in the distribution of species is also important. The object of current study was to investigate the species abundance distribution using ecological niche models in a successional stage of plant community in semi-steppe rangelands. To do so, first we selected three regions with different succession stage including 3-5, 10-15, and 30-50 years and a control site. In each region, we used 10 plots of 1 m2 along four 100 m transects to record the vegetation cover. Then Monte-Carlo test using data simulation was used to test fitness of each niche apportionment model. The results showed that frequency of species in both 3-5 and 10-15 successions fitted the random fraction model while MacArthur fraction model only accepted the model which fitted species frequency distribution in 30-50 years and control site. The results indicated that the niche occupation pattern in early stage of succession might be attributed to the random process of pioneer species. However, the chance of random niche occupation decreased by the end of succession due to nutrient availability and competition.
http://ijae.iut.ac.ir/article-1-701-en.pdf
Abundance distribution
MacArthur fraction
Random fraction
Succession.
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Iranian Journal of Applied Ecology
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article
Assessment and Prioritization of Environmental Risks in Gaz and Hara Rivers Estuary International Wetland
Samira Jafariazar
samirajafari1392@gmail.com
1
Gholam Reza Sabzghabaei
grsabz1@gmail.com
2
Mortaza Tavakoly
tavakoly52@gmail.com
3
Soolmaz Dashti
solmazdashti@gmail.com
4
Dept. of Environ., Behbahan Khatam Alanbia Univ., Behbahan, Iran.
Dept. of Environ., Behbahan Khatam Alanbia Univ., Behbahan, Iran.
Dept. of Geography., Tarbiat Modares Univ., Tehran, Iran.
Dept. of Environ., Ahvaz Branch, Islamic Azad Univ., Ahvaz, Iran.
Wetland ecosystems have many economic and ecological functions and values, but today their security and existence have been heavily influenced by various natural and human factors. Therefore, the present study was conducted to identify, rank and assess environmental risks threatening Khur-e- Azini International wetland located in Hormozgan province. In order to identify risk factors, the Delphi method and the multi-criteria decision-making methods, AHP and TOPSIS were used for prioritizing risks. According to the results of the technique AHP, fuel smuggling, marine transportation and oil pollution were respectively ranked first to third. The results of TOPSIS technique based on the relative proximity (Cj +) indicate that the oil pollution (1) and the fuel smuggling (0.9154) are ranked first to second. In general, based on the ranking of risks, 8.6 percent of risks were placed in the unbearable category, 8.6 percent of risks were placed in the significant category, 26.08 percent of risks were placed in the average category, and 30.43 percent of risks were placed in the category of tolerable risks. According to the results, management priorities and planning should be considered seriously to minimize the risks and consequences that have irreversible effects on the environment and wetlands function.
http://ijae.iut.ac.ir/article-1-768-en.pdf
Gaz and Hara Rivers Estuary
International wetlands
Multi-criteria decision
Risk assessment.
per
Iranian Journal of Applied Ecology
2476-3128
2476-3217
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89
100
article
The Relation between Soil Parameters and Growth Characteristics of Tamarix ramosissima in Abyaneh, Isfahan Province
SayedHamid Matinkhah
matinkhah@cc.iut.ac.ir
1
Zeinab Kaveh Sedehi
zainabkavehsdehy@yahoo.com
2
Isfahan University of Technology
Isfahan University of Technology
Vegetative characteristics of plant species are strongly dependent on habitat environmental conditions. Most Salt cedar (Tamarix ramosissima) individuals grow on unsuitable soil and climate conditions. One of the important habitats of this species is near Abyaneh in Isfahan Province. To investigate the relation of edaphic factors on the growth of T. ramosissima, three plots 400m2 in area were randomly placed in this region. In each plot, crown cover and mean height of each tree were measured. Chemical and physical properties of soil were evaluated in two depths (0-20, 20-40cm). The relation between soil and vegetation was assessed using ordination method and RDA. The results suggest that in the upper depth, organic matter and saturation percentage (%SP) have a strong positive correlation with vegetative factors of T. ramosissima including canopy cover and mean height. On the other hand, in lower depth pH, %CaSO4 factors have higher correlation with plants factors compared to upper depth. Therefore, organic matter in upper layer and saturation percentage (%SP) have more correlation with vegetative factors. This suggests the importance of studying these two soil depths. In the restoration projects on this species, it is necessary to consider the abovementioned soil factors.
http://ijae.iut.ac.ir/article-1-707-en.pdf
Autecology
Natural habitat
Ordination
Soil parameters
Tamarix ramosissima.