Distribution and Physiology of <i>Juniperus seravschanica</i> Trees in the Genow—The Southernmost and Arid Habitat of Iran
<i>Juniperus seravschanica</i> is the southernmost population of <i>Juniperus</i> that has a limited habitat in the world near the equator. In Iran, the lone habitat of this species in the Genow mountains has been endangered with thin foliage, abscissing needles, and dried sh...
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MDPI AG
2022-11-01
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| Online Access: | https://www.mdpi.com/2073-4441/14/21/3508 |
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| author | Abdolrahman Rahimian Boogar Hassan Salehi Esmaeel Seyedabadi |
| author_facet | Abdolrahman Rahimian Boogar Hassan Salehi Esmaeel Seyedabadi |
| author_sort | Abdolrahman Rahimian Boogar |
| collection | DOAJ |
| description | <i>Juniperus seravschanica</i> is the southernmost population of <i>Juniperus</i> that has a limited habitat in the world near the equator. In Iran, the lone habitat of this species in the Genow mountains has been endangered with thin foliage, abscissing needles, and dried shoots. The current study investigated the effects of climatic, genetic factors, and physiologic indices on the distribution of <i>J. seravschanica</i>. Distribution was evaluated for 450 ha and physiological indices were evaluated for two groups: (A) trees with dried branches and (B) trees without dried branches. Results showed that the distribution of <i>J. seravschanica</i> in the Genow habitat was influenced by elevation, slope degree, aspect, and distance to stream. Results also indicated that max temperature and precipitation are two effective factors that have the highest effects on falling needles and drying branches of <i>J. seravschanica</i>. Chlorophyll, relative water content (RWC), and relative turgidity (RT) are significantly influenced by max temperature. Endangered trees with dried branches had a lower chlorophyll content, RWC, and RT than trees without dried branches. Vulnerability of <i>J. seravschanica</i> was significantly influenced by its genetic structure. Results of AMOVA showed 83% genetic variability between two groups of <i>J. seravschanica</i> trees. |
| first_indexed | 2024-03-09T18:33:13Z |
| format | Article |
| id | doaj.art-68d65e4f77614b909b413a79fd392a2f |
| institution | Directory Open Access Journal |
| issn | 2073-4441 |
| language | English |
| last_indexed | 2024-03-09T18:33:13Z |
| publishDate | 2022-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Water |
| spelling | doaj.art-68d65e4f77614b909b413a79fd392a2f2023-11-24T07:20:35ZengMDPI AGWater2073-44412022-11-011421350810.3390/w14213508Distribution and Physiology of <i>Juniperus seravschanica</i> Trees in the Genow—The Southernmost and Arid Habitat of IranAbdolrahman Rahimian Boogar0Hassan Salehi1Esmaeel Seyedabadi2Department of Horticultural Science and Landscape Engineering, Faculty of Agriculture, University of Zabol, Zabol 98613-35856, IranDepartment of Horticultural Science, School of Agriculture, Shiraz University, Shiraz 71441-65186, IranDepartment of Agronomy, Faculty of Agriculture, University of Zabol, Zabol 98613-35856, Iran<i>Juniperus seravschanica</i> is the southernmost population of <i>Juniperus</i> that has a limited habitat in the world near the equator. In Iran, the lone habitat of this species in the Genow mountains has been endangered with thin foliage, abscissing needles, and dried shoots. The current study investigated the effects of climatic, genetic factors, and physiologic indices on the distribution of <i>J. seravschanica</i>. Distribution was evaluated for 450 ha and physiological indices were evaluated for two groups: (A) trees with dried branches and (B) trees without dried branches. Results showed that the distribution of <i>J. seravschanica</i> in the Genow habitat was influenced by elevation, slope degree, aspect, and distance to stream. Results also indicated that max temperature and precipitation are two effective factors that have the highest effects on falling needles and drying branches of <i>J. seravschanica</i>. Chlorophyll, relative water content (RWC), and relative turgidity (RT) are significantly influenced by max temperature. Endangered trees with dried branches had a lower chlorophyll content, RWC, and RT than trees without dried branches. Vulnerability of <i>J. seravschanica</i> was significantly influenced by its genetic structure. Results of AMOVA showed 83% genetic variability between two groups of <i>J. seravschanica</i> trees.https://www.mdpi.com/2073-4441/14/21/3508climate changeconservation programsdistribution mapsecological landscape |
| spellingShingle | Abdolrahman Rahimian Boogar Hassan Salehi Esmaeel Seyedabadi Distribution and Physiology of <i>Juniperus seravschanica</i> Trees in the Genow—The Southernmost and Arid Habitat of Iran Water climate change conservation programs distribution maps ecological landscape |
| title | Distribution and Physiology of <i>Juniperus seravschanica</i> Trees in the Genow—The Southernmost and Arid Habitat of Iran |
| title_full | Distribution and Physiology of <i>Juniperus seravschanica</i> Trees in the Genow—The Southernmost and Arid Habitat of Iran |
| title_fullStr | Distribution and Physiology of <i>Juniperus seravschanica</i> Trees in the Genow—The Southernmost and Arid Habitat of Iran |
| title_full_unstemmed | Distribution and Physiology of <i>Juniperus seravschanica</i> Trees in the Genow—The Southernmost and Arid Habitat of Iran |
| title_short | Distribution and Physiology of <i>Juniperus seravschanica</i> Trees in the Genow—The Southernmost and Arid Habitat of Iran |
| title_sort | distribution and physiology of i juniperus seravschanica i trees in the genow the southernmost and arid habitat of iran |
| topic | climate change conservation programs distribution maps ecological landscape |
| url | https://www.mdpi.com/2073-4441/14/21/3508 |
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