摘要 Knowledge about plant diversity along disturbance gradients is essential for conservation and management of fragmented coastal habitats. This study examined the effects of human disturbance intensity in coastal habitats of Kuwait on diversity, composition, identity and assemblage of vascular plant species. Plant survey data from 113 plots (5 m×5 m each) were randomly selected in 51 sites at coastal fragmented habitats at three levels of disturbance intensities (high, moderate and low) and were statistically analyzed. The results revealed that about 76% of the recorded species are considered threatened species in Kuwait, most of which are being lost in high disturbed habitats. Disturbance led to the dominance of Zygophyllum qatarense, Cornulaca aucheri and Salsola imbricata, which are species of disturbance indicators. Richness, total plant cover and species diversity were higher in moderate and low disturbed habitats than in high disturbed habitats. Beta diversity between high and low disturbed habitats was higher than either between high and moderate, or between moderate and low disturbed habitats. Cluster analyses showed statistically significant differences in composition of plant assemblages, which indicate high beta diversity between the habitat types. Intensive urbanization and industrialization are among the most serious threats that contribute to declines in biological diversity and rapid fragmentation of coastal habitats in Kuwait. Establishing protective enclosures in the disturbed habitats, planting endangered and vulnerable species, and establishing a natural reserve at Nuwaiseeb are recommended conservation actions to avoid loss of the fragmented coastal habitats and to facilitate restoration of native plants.
Abstract: Knowledge about plant diversity along disturbance gradients is essential for conservation and management of fragmented coastal habitats. This study examined the effects of human disturbance intensity in coastal habitats of Kuwait on diversity, composition, identity and assemblage of vascular plant species. Plant survey data from 113 plots (5 m×5 m each) were randomly selected in 51 sites at coastal fragmented habitats at three levels of disturbance intensities (high, moderate and low) and were statistically analyzed. The results revealed that about 76% of the recorded species are considered threatened species in Kuwait, most of which are being lost in high disturbed habitats. Disturbance led to the dominance of Zygophyllum qatarense, Cornulaca aucheri and Salsola imbricata, which are species of disturbance indicators. Richness, total plant cover and species diversity were higher in moderate and low disturbed habitats than in high disturbed habitats. Beta diversity between high and low disturbed habitats was higher than either between high and moderate, or between moderate and low disturbed habitats. Cluster analyses showed statistically significant differences in composition of plant assemblages, which indicate high beta diversity between the habitat types. Intensive urbanization and industrialization are among the most serious threats that contribute to declines in biological diversity and rapid fragmentation of coastal habitats in Kuwait. Establishing protective enclosures in the disturbed habitats, planting endangered and vulnerable species, and establishing a natural reserve at Nuwaiseeb are recommended conservation actions to avoid loss of the fragmented coastal habitats and to facilitate restoration of native plants.
通讯作者:
Raafat H ABD EL-WAHAB
E-mail: raafat_hassan@yahoo.com
引用本文:
Raafat H ABD EL-WAHAB. Plant assemblage and diversity variation with human disturbances in coastal habitats of the western Arabian Gulf[J]. 干旱区科学, 2016, 8(5): 787-798.
Raafat H ABD EL-WAHAB. Plant assemblage and diversity variation with human disturbances in coastal habitats of the western Arabian Gulf. Journal of Arid Land, 2016, 8(5): 787-798.
Abd El-Wahab R H, Al-Rashed A R. 2010. Vegetation and soil conditions of phytogenic mounds in Subiya area northeast of Kuwait. Catrina, 5(1): 87–95. Abd El-Wahab R H, Al-Rashed A R, Al-Hamad Y. 2014. Conservation condition of Haloxylon salicornicum (Moq.) Bunge ex Boiss. in degraded desert habitats of northern Kuwait. International Journal of Current Microbiology and Applied Sciences, 3(10): 310–325. Abd El-Wahab R H. 2015. Species richness, structure, and conservation of Nitraria retusa communities in the coastal salt marshes of Kuwait. Regional Environmental Change, 15(5): 1–12. Al-Ateeqi S, Al-Hurban A. 2006. Plants as soil indicators in Al-Khiran area, Kuwait. In: Proceedings of the 8th International Conference on the Geology of the Arab World (GAW8). Egypt: Cairo University, 107–116. Al-Awadhi J M, Al-Dousari A M. 2013. Morphological characteristics and development of coastal nabkhas, north-east Kuwait. International Journal of Earth Sciences, 102(3): 949–958. Al-Awadhi J M, Al-Dousari A M, Khalaf F I. 2014. Influence of land degradation on the local rate of dust fallout in Kuwait. Atmospheric and Climate Sciences, 4(3): 437–446. Al-Dousari A M, Ahmed M, Al-Senafy M, et al. 2008. Characteristics of nabkhas in relation to dominant perennial plant species in Kuwait. Kuwait Journal of Science & Engineering, 35: 129–150. Al-Hurban A E, Al-Sulaimi J S. 2009. Recent surface sediments and landforms of the southern area of Kuwait. European Journal of Scientific Research, 38(2): 272–295. Almedeij J. 2012. Modeling rainfall variability over urban areas: a case study for Kuwait. The Scientific World Journal, 2012: 980738, doi: 10.1100/2012/980738. Baby S, Nathawat M S, Al-Sarawi M A. 2014. Major impacts from anthropogenic activities on landscape carrying capacity of Kuwaiti Coast. Polish Journal of Environmental Studies, 23(1): 7–17. Batanouny K H. 1983. Human impact on desert vegetation. In: Holzner W, Werger M J A, Ikusima I. Man’s Impact on Vegetation. London: Dr. W. Junk Publishers. Biswas S R, Mallik A U. 2010. Disturbance effects on species diversity and functional diversity in riparian and upland plant communities. Ecology, 91(1): 28–35. Biswas S R, Mallik A U. 2011. Species diversity and functional diversity relationship varies with disturbance intensity. Ecosphere, 2(4): 1–10. Boorman L. 2003. Saltmarsh review: An overview of coastal saltmarshes, their dynamic and sensitivity characteristics for conservation and management. In: Joint Nature Conservation Committee Report, No. 334. Peterborough, 113.Boulos L. 1988. The Weed Flora of Kuwait. Kuwait: Kuwait University, 175.Brown G. 2003. Factors maintaining plant diversity in degraded areas of northern Kuwait. Journal of Arid Environments, 54(1): 183–194. Caldecott J O, Jenkins M D, Johnson T H, et al. 1996. Priorities for conserving global species richness and endemism. Biodiversity & Conservation, 5(6): 699–727. Casanoves F, Pla L, Di Rienzo J A, et al. 2010. FDiversity: a software package for the integrated analysis of functional diversity. Methods in Ecology and Evolution, 2(3): 233–237. Daoud H, Al-Rawi A. 1985. Flora of Kuwait. Volume one: dicotyledoneae. KPI, London in Association with Kuwait University. El-Baz F, Al-Sarawi M. 2000. Atlas of the state of Kuwait from satellite images. Boston: Kuwait Foundation for the Advancement of Sciences and Remote Sensing Center, Boston University, 145. El-Ghareeb R, Rezk M R. 1989. A preliminary study on the vegetation of the Mediterranean coastal land at Bousseli (Egypt). Kuwait Journal of Science & Engineering, 16(1): 115–128. El-Ghareeb R M, El-Sheikh M A E, Testi A. 2006. Diversity of plant communities in coastal salt marshes habitat in Kuwait. Rendiconti Lincei, 17(3): 311–331. El-Sheikh M A, Abbadi G A, Bianco P M. 2010. Vegetation ecology of phytogenic hillocks (nabkhas) in coastal habitats of Jal Az-Zor National Park, Kuwait: role of patches and edaphic factors. Flora, 205(12): 832–840. Entsminger G. 2014. EcoSim Professional: Null modeling software for ecologists, Version 1. Montrose, CO: Acquired Intelligence Inc., Kesey-Bear & Pinyon Publishing. http://www.garyentsminger.com/ecosim/index.htm. Gunatilaka A, Saleh A, Al-Temeemi A. 1980. Plant controlled supratidal anhydrite from Al-Khiran, Kuwait. Nature, 288(5788): 257–260. Gunatilaka A. 1986. Kuwait and the northern Arabian Gulf: a study in quaternary sedimentation. Episodes, 9(4): 223–231. Gunatilaka A, Mwango S. 1987. Continental sabkha pans and associated nebkhas in southern Kuwait, Arabian Gulf. Geological Society, London, Special Publication, 35: 187–203. Halwagy R, Halwagy M. 1977. Ecological studies on the desert of Kuwait. III. The vegetation of the coastal salt marshes. Kuwait Journal of Science & Engineering, 4: 33–74. Halwagy R, Moustafa A F, Kamel S M. 1982. On the ecology of the desert vegetation in Kuwait. Journal of Arid Environments, 5(2): 95–107. IBM Corp. 2012. IBM SPSS Statistics for Windows, Version 21.0. Armonk, NY: IBM Corp. IUCN. 2012. IUCN Red List Categories and Criteria: Version 3.1 (2nd ed.). Gland, Switzerland and Cambridge, UK: IUCN. Jones D A, Nithyanandan M, Williams I. 2012. Sabah Al-Ahmad Sea City Kuwait: development of a sustainable man-made coastal ecosystem in a saline desert. Aquatic Ecosystem Health & Management, 15(S1): 84–92. Khalaf F I, Misak R, Al-Dousari A. 1995. Sedimentological and morphological characteristics of some nabkha deposits in the northern coastal plain of Kuwait, Arabian. Journal of Arid Environments, 29(3): 267–292. Khalaf F I, Al-Hurban A E, Al-Awadhi J. 2014. Morphology of protected and non-protected Nitraria retusa coastal nabkha in Kuwait, Arabian Gulf: a comparative study. Catena, 115: 115–122. Kleo A A, Al-Qtaibi O. 2011. The sustainable development of Kuwaiti Sabkhas. Digest Middle East Studies, 20(1): 27–49. Koleff P, Gaston K J, Lennon J J. 2003. Measuring beta diversity for presence–absence data. Journal of Animal Ecology, 72(3): 367–382. Laegdsgaard P. 2006. Ecology, disturbance and restoration of coastal saltmarsh in Australia: a review. Wetlands Ecology and Management, 14(5): 379–399. Lake P S. 2000. Disturbance, patchiness, and diversity in streams. Journal of the North American Benthological Society, 19(4): 573–592. Loughland R A, Al-Abdulkader K A, Wyllie A, et al. 2012. Anthropogenic induced geomorphological change along the western Arabian Gulf coast. In: Piacentini T, Miccadei E. Studies on Environmental and Applied Geomorphology. Rijeka: InTech, 191-218. McKinney M L. 2006. Urbanization as a major cause of biotic homogenization. Biological Conservation, 127(3): 247–260. Omar S, Al-Mutawa Y, Zaman S. 2007. Vegetation of Kuwait. Kuwait: Kuwait Institute for Scientific Research, 163.Omar S A S. 1991. Dynamics of range plants following 10 years of protection in arid rangelands of Kuwait. Journal of Arid Environments, 21(1): 99–111. Pakeman R J. 2011. Functional diversity indices reveal the impacts of land use intensification on plant community assembly. Journal of Ecology, 99(5): 1143–1151. Richer R. 2009. Conservation in Qatar: impacts of increasing industrialization. In: Center for International and Regional Studies. Doha: Georgetown University, 27. Shaltout K H, Sheded M G, El-Kady H F, et al. 2003. Phytosociology and size structure of Nitraria retusa along the Egyptian Red Sea coast. Journal of Arid Environments, 53(3): 331–345. Täckholm V. 1974. Students’ Flora of Egypt (2nd ed.). Beirut: Cairo University Publishing, Cooperative Printing Company, 888.Wilson M V, Shmida A. 1984. Measuring beta diversity with presence-absence data. Journal of Ecology, 72(3): 1055–1064. Wulff A S, Hollingsworth P M, Ahrends A, et al. 2013. Conservation priorities in a biodiversity hotspot: analysis of narrow endemic plant species in New Caledonia. PLoS ONE, 8(9): e73371.Zaman S. 1997. Effects of rainfall and grazing on vegetation yield and cover of two arid rangelands in Kuwait. Environmental Conservation, 24(4): 344–350.Zedler J B, West J M. 2008. Declining diversity in natural and restored salt marshes: a 30-year study of Tijuana estuary. Restoration Ecology, 16(2): 249–262.