Do Himalayan treelines respond to recent climate change? An evaluation of sensitivity indicators

Earth System Dynamics

Volumn 6, Issue 1, 2015, Pages 245-265

  Schickhoff, U ^a   Bobrowski, M ^a   Bohner J ^a   Burzle B ^a   Chaudhary, R P ^b   Gerlitz, L ^a   Heyken, H ^a   Lange, J ^c   Muller M ^d   Scholten, T ^d   Schwab, N ^a   Wedegartner R ^d  

^a UNIVERSITY OF HAMBURG   (Germany)

^b TRIBHUVAN UNIVERSITY   (Nepal)

^c UNIVERSITY OF GREIFSWALD   (Germany)

^d UNIVERSITY OF TÜBINGEN   (Germany)

Author keywords

[No Author keywords available]

Indexed keywords

ATMOSPHERIC THERMODYNAMICS; CLIMATE CHANGE; DIGITAL STORAGE; ECOLOGY; LAND USE; REFORESTATION;

COMPETITIVE ABILITY; ECOLOGICAL NICHE MODELLING; EMPIRICAL STUDIES; FIELD OBSERVATIONS; GROWTH PATTERNS; LAND-USE CHANGE; TEMPERATURE CHANGES; TEMPERATURE TRENDS;

FORESTRY;

CLIMATE CHANGE; CLIMATE EFFECT; GLOBAL WARMING; LAND USE CHANGE; RANGE EXPANSION; SENSITIVITY ANALYSIS; TREELINE;

CLIMATES; EVALUATION; REFORESTATION; RESEARCH;

HIMALAYAS;

EID: 84929162451     PISSN: 21904979     EISSN: 21904987     Source Type: Journal    
DOI: 10.5194/esd-6-245-2015     Document Type: Article

References (185)

1. Akatov, P. V.: Changes in the upper limits of tree species distribution in the western Caucasus (Belaya River basin) related to recent climate warming, Russ. J. Ecol., 40, 33-38, 2009.
2. Anschlag, K., Broll, G., and Holtmeier, F. K.: Mountain birch seedlings in the treeline ecotone, subarctic Finland: Variation in above-and below-ground growth depending on microtopography, Arct., Antarct., Alp. Res., 40, 609-616, 2008.
3. Aryal, A., Brunton, D., and Raubenheimer, D.: Impact of climate change on human-wildlife-ecosystem interactions in the Trans-Himalaya region of Nepal, Theor. Appl. Climatol., 115, 517-529, 2014.
4. Baker, B. B. and Moseley, R. K.: Advancing treeline and retreating glaciers: Implications for conservation in Yunnan, P.R. China, Arct., Antarct., Alp. Res., 39, 200-209, 2007.
5. Bansal, S., Reinhardt, K., and Germino, M. J.: Linking carbon balance to establishment patterns: Comparison of whitebark pine and Engelmann spruce seedlings along an herb cover exposure gradient at treeline, Plant Ecol., 212, 219-228, 2011.
6. Barbeito, I., Dawes, M. A., Rixen, C., Senn, J., and Bebi, P.: Factors driving mortality and growth at treeline: A 30-year experiment of 92 000 conifers, Ecology, 93, 389-401, 2012.
7. Basistha, A., Arya, D. S., and Goel, N. K.: Analysis of historical changes in rainfall in the Indian Himalayas, Int. J. Climatol., 29, 555-572, 2009.
8. Batllori, E. and Gutiérrez, E.: Regional tree line dynamics in response to global change in the Pyrenees, J. Ecol., 96, 1275-1288, 2008.
9. Batllori, E., Camarero, J. J., Ninot, J. M., and Gutiérrez, E.: Seedling recruitment, survival and facilitation in alpine Pinus uncinata tree line ecotones. Implications and potential responses to climate warming, Global Ecol. Biogeogr., 18, 460-472, 2009.
10. Beug, H. J. and Miehe, G.: Vegetation History and Human Impact in the Eastern Central Himalaya (Langtang and Helambu, Nepal), Diss. Bot., 318, Berlin-Stuttgart, 1999.
11. Bharti, R. R., Rai, I. D., Adhikari, B. S., and Rawat, G. S.: Timberline change detection using topographic map and satellite imagery: A critique, Trop. Ecol., 52, 133-137, 2011.
12. Bharti, R. R., Adhikari, B. S., and Rawat, G. S.: Assessing vegetation changes in timberline ecotone of Nanda Devi National Park, Uttarakhand, Int. J. Appl. Earth Observ. Geoinform., 18, 472-479, 2012.
13. Bhattacharyya, A. and Chaudhary, V.: Late-summer temperature reconstruction of the eastern Himalayan region based on treering data of Abies densa, Arct., Antarct., Alp. Res., 35, 196-202, 2003.
14. Bhattacharyya, A. and Shah, S. K.: Tree-ring studies in India, past appraisal, present status and future prospects, IAWA J., 30, 361-370, 2009.
15. Bhattacharyya, A. and Yadav, R. R.: Growth and climate relationship in Cedrus deodara from Joshimath, Uttar Pradesh, Paleobotanist, 38, 411-414, 1990.
16. Bhattacharyya, A., Shah, S. K., and Chaudhary, V.:Would tree-ring data of Betula utilis have potential for the analysis of Himalayan glacial fluctuations?, Curr. Sci., 91, 754-761, 2006.
17. Bhutiyani, M. R., Kale, V. S., and Pawar, N. J.: Climate change and the precipitation variations in the northwestern Himalaya: 1866-2006, Int. J. Climatol., 30, 535-548, 2010.
18. Böhner, J.: General climatic controls and topoclimatic variations in Central and High Asia, Boreas, 35, 279-295, 2006.
19. Bolli, J. C., Rigling, A., and Bugmann, H.: The influence of changes in climate and land-use on regeneration dynamics of Norway Spruce at the treeline in the Swiss Alps, Silva Fennica, 41, 55-70, 2006.
20. Borgaonkar, H. P., Pant, G. B., and Rupa Kumar, K.: Tree-ring chronologies from western Himalaya and their dendroclimatic potential, Int. Assoc. Wood Anat. J., 20, 295-309, 1999.
21. Borgaonkar, H. P., Ram, S., and Sikder, A. B.: Assessment of treering analysis of high-elevation Cedrus deodara D. Don from western Himalaya (India) in relation to climate and glacier fluctuations, Dendrochronologia, 27, 59-69, 2009.
22. Borgaonkar, H. P., Sikder, A. B., and Ram, S.: High altitude forest sensitivity to the recent warming: a tree-ring analysis of conifers from western Himalaya, India, Quatern. Int., 236, 158-166, 2011.
23. Bräuning, A.: Tree-ring studies in the Dolpo-Himalaya (western Nepal), TRACE-Tree Rings in Archaeol, Climatol. Ecol., 2, 8-12, 2004.
24. Bräuning, A.: Tree-ring evidence of "Little Ice Age" glacier advances in southern Tibet, The Holocene, 16, 1-12, 2006.
25. Bräuning, A. and Mantwill, B.: Summer temperature and summer monsoon history on the Tibetan plateau during the last 400 years recorded by tree rings, Geophys. Res. Lett., 31, L24205, doi:10.1029/2004GL020793, 2004.
26. Bräuning, A. and Grießinger, J.: Late Holocene variations in monsoon intensity in the Tibetan-Himalayan region-evidence from tree rings, J. Geol. Soc. India, 68, 485-493, 2006.
27. Camarero, J. J. and Gutiérrez, E.: Pace and pattern of recent treeline dynamics: Response of ecotones to climatic variability in the Spanish Pyrenees, Clim. Change, 63, 181-200, 2004.
28. Case, B. S. and Duncan, R. P.: A novel framework for disentangling the scale-dependent influences of abiotic factors on alpine treeline position, Ecography, 37, 838-851, 2014.
29. Chaudhary, V. and Bhattacharyya, A.: Tree ring analysis of Larix griffithiana from the Eastern Himalayas in the reconstruction of past temperature, Curr. Sci., 79, 1712-1715, 2000.
30. Chou, S. C., Huang, C. H., Hsu, T.W., Wu, C. C., and Chou, C. H.: Allelopathic potential of Rhododendron formosanum Hemsl in Taiwan, Allelopathy J., 25, 73-92, 2010.
31. Cook, E. R., Krusic, P. J., and Jones, P. D.: Dendroclimatic signals in long tree-ring chronologies from the Himalayas of Nepal, Int. J. Climatol., 23, 707-732, 2003.
32. Cook, E. R., Anchukaitis, K. J., Buckley, B. M., D'Arrigo, R. D., Jacoby, G. C., and Wright, W. E.: Asian monsoon failure and megadrought during the last millennium, Science, 328, 486-489, 2010.
33. Dalen, L. and Hofgaard, A.: Differential regional treeline dynamics in the Scandes Mountains, Arct., Antarct., Alp. Res., 37, 284-296, 2005.
34. Danby, R. K.: Monitoring forest-tundra ecotones at multiple scales, Geogr. Compass 5, 623-640, 2011.
35. Danby, R. K. and Hik, D. S.: Variability, contingency and rapid change in recent subarctic alpine treeline dynamics, J. Ecol., 95, 352-363, 2007.
36. Daniels, L. D. and Veblen, T. T.: Spatiotemporal influences of climate on altitudinal treeline in northern Patagonia, Ecology, 85, 1284-1296, 2004.
37. Dawadi, B., Liang, E., Tian, L., Devkota, L. P., and Yao, T.: Premonsoon precipitation signal in tree rings of timberline Betula utilis in the central Himalayas, Quatern. Int., 283, 72-77, 2013.
38. Dolezal, J., Altman, J., Vetrova, V. P., and Hara, T.: Linking two centuries of tree growth and glacier dynamics with climate changes in Kamchatka, Clim. Change, 124, 207-220, 2014.
39. Duan, K., Yao, T., and Thompson, L. G.: Response of monsoon precipitation in the Himalayas to global warming, J. Geophys. Res.-Atmos. (1984-2012), 111, D19110, doi:10.1029/2006JD007084, 2006.
40. Dubey, B., Yadav, R. R., Singh, J., and Chaturvedi, R.: Upward shift of Himalayan pine in western Himalaya, India, Curr. Sci., 85, 1135-1136, 2003.
41. Dulamsuren, C., Hauck, M., and Leuschner, C.: Recent drought stress leads to growth reductions in Larix sibirica in the western Khentey, Mongolia, Global Change Biol., 16, 3024-3035, 2010.
42. Dullinger, S., Dirnböck, T., and Grabherr, G.: Modelling climatechange driven treeline shifts: Relative effects of temperature increase, dispersal and invisibility, J. Ecol., 92, 241-252, 2004.
43. Dutta, P. K., Dutta, B. K., Das, A. K., and Sundriyal, R. C.: Alpine timberline research gap in Himalaya: A literature review, Ind. For., 140, 419-427, 2014.
44. Elith, J., Kearney, M., and Phillips, S.: The art of modelling rangeshifting species, Methods Ecol. Evol., 1, 330-342, 2010.
45. Elliott, G. P.: Influences of 20th century warming at the upper tree line contingent on local-scale interactions: Evidence from a latitudinal gradient in the Rocky Mountains, USA, Global Ecol. Biogeogr., 20, 46-57, 2011.
46. Engler, R., Randin, C. F., Thuiller, W., Dullinger, S., Zimmermann, N. E., Araujo, M. B., Pearman, P. B., Le Lay, G., Piedallu, C., Albert, C. H., Choler, P., Coldea, G., De Lamo, X., Dirnböck, T., Gegout, J.-C., Gomez-Garcia, D., Grytnes, J.-A., Heegaard, E., Hoistad, F., Nogues-Bravo, D., Normand, S., Puscas, M., Sebastia, M.-T., Stanisci, A., Theurillat, J.-P., Trivedi, M. R., Vittoz, P. and Guisan, A.: 21st century climate change threatens mountain flora unequally across Europe, Global Change Biol., 17, 2330-2341, 2011.
47. Esper, J., Schweingruber, F. H., and Winiger, M.: 1.300 years of climate history for western central Asia inferred from tree-rings, The Holocene, 12, 267-277, 2002.
48. Esper, J., Frank, D., Wilson, R., Büntgen, U., and Treydte, K.: Uniform growth trends among central Asian low-and high-elevation juniper tree sites, Trees, 21, 141-150, 2007.
49. Fagre, D. B.: Introduction: Understanding the importance of alpine treeline ecotones in mountain ecosystems, in: The Changing Alpine Treeline: The Example of Glacier National Park, edited by: Butler, D. R., Malanson, G. P.,Walsh, S. J., and Fagre, D. B., 1-9, Elsevier, Amsterdam, 2009.
50. Fajardo, A. and McIntire, E. J.: Reversal of multicentury tree growth improvements and loss of synchrony at mountain tree lines point to changes in key drivers, J. Ecol., 100, 782-794, 2012.
51. Fan, Z. X., Bräuning, A., Yang, B., and Cao, K. F.: Tree ring density-based summer temperature reconstruction for the central Hengduan Mountains in southern China, Global Planet. Change, 65, 1-11, 2009.
52. Flohn, H.: Contributions to a Meteorology of the Tibetan Highlands, Atmospheric Sciences Paper 130, Fort Collins, 1968.
53. Gaire, N. P., Dhakal, Y. R., Lekhak, H. C., Bhuju, D. R., and Shah, S. K.: Dynamics of Abies spectabilis in relation to climate change at the treeline ecotone in Langtang National Park, Nepal J. Sci. Technol., 12, 220-229, 2011.
54. Gaire, N. P., Koirala, M., Bhuju, D. R., and Borgaonkar, H. P.: Treeline dynamics with climate change at the central Nepal Himalaya, Clim. Past, 10, 1277-1290, doi:10.5194/cp-10-1277-2014, 2014.
55. Gairola, S., Rawal, R. S., and Todaria, N. P.: Forest vegetation patterns along an altitudinal gradient in sub-alpine zone of west Himalaya, India, Afr. J. Plant Sci., 2, 42-48, 2008.
56. Gehrig-Fasel, J., Guisan, A., and Zimmermann, N. E.: Tree line shifts in the Swiss Alps: Climate change or land abandonment?, J. Veg. Sci., 18, 571-582, 2007.
57. Gerlitz, L.: Using fuzzyfied regression trees for statistical downscaling and regionalization of near surface temperatures in complex terrain, Theor. Appl. Climatol., 118, 1-16, 2014.
58. Gerlitz, L., Conrad, O., Thomas, A., and Böhner, J.: Warming patterns over the Tibetan Plateau and adjacent lowlands derived from elevation-and bias-corrected ERA-Interim data, Clim. Res., 58, 235-246, 2014.
59. Germino, M. J., Smith, W. K., and Resor, A. C.: Conifer seedling distribution and survival in an alpine-treeline ecotone, Plant Ecol., 162, 157-168, 2002.
60. Ghimire, B. K. and Lekhak, H. D.: Regeneration of Abies spectabilis (D. Don) Mirb. in subalpine forest of upper Manang, north-central Nepal, in: Local Effects of Global Changes in the Himalayas: Manang, Nepal, edited by: Chaudhary, R. P., Aase, T. H., Vetaas, O., and Subedi, B. P., 139-149, Tribhuvan Univ., Nepal, Univ. of Bergen, Norway, 2007.
61. Ghimire, B. K., Mainali, K. P., Lekhak, H. D., Chaudhary, R. P., and Ghimeray, A.: Regeneration of Pinus wallichiana A.B. Jackson in a trans-Himalayan dry valley of north-central Nepal, Himal. J. Sci., 6, 19-26, 2010.
62. Gieger, T. and Leuschner, C.: Altitudinal change in needle water relations of Pinus canariensis and possible evidence of a droughtinduced alpine timberline on Mt. Teide, Tenerife, Flora, 199, 100-109, 2004.
63. Gottfried, M., Pauli, H., Futschik, A., Akhalkatsi, M., Barancok, P., Benito Alonso, J. L., Coldea, G., Dick, J., Erschbamer, B., Kazakis, G., Krajci, J., Larsson, P., Mallaun, M., Michelsen, O., Moiseev, D., Moiseev, P., Molau, U., Merzouki, A., Nagy, L., Nakhutsrishvili, G., Pedersen, B., Pelino, G., Puscas, M., Rossi, G., Stanisci, A., Theurillat, J. P., Tomaselli, M., Villar, L., Vittoz, P., Vogiatzakis, I., and Grabherr, G.: Continent-wide response of mountain vegetation to climate change, Nat. Clim. Change, 2, 111-115, 2012.
64. Grabherr, G., Gottfried, M., and Pauli, H.: Climate change impacts in alpine environments, Geogr. Compass, 4, 1133-1153, 2010.
65. Grace, J., Berninger, F., and Nagy, L.: Impacts of climate change on the tree line, Ann. Bot., 90, 537-544, 2002.
66. Gratzer, G. and Rai, P. B.: Density dependent mortality versus spatial segregation in early life stages of Abies densa and Rhododendron hodgsonii in central Bhutan, For. Ecol. Manag., 192, 143-159, 2004.
67. Gratzer, G., Rai, P. B., and Schieler, K.: Structure and regeneration dynamics of Abies densa forests in central Bhutan, Centralbl. ges. Forstwes., 119, 279-287, 2002.
68. Graumlich, L. J., Waggoner, L. A., and Bunn, A. G.: Detecting global change at Alpine treeline: Coupling paleoecology with contemporary studies, in: Global Change and Mountain Regions. An Overview of Current Knowledge, edited by: Huber, U. M., Bugmann, H. K. M., and Reasoner, M. A., 501-508, Springer, Dordrecht, 2005.
69. Harsch, M. A. and Bader, M. Y.: Treeline form - a potential key to understanding treeline dynamics, Global Ecol. Biogeogr., 20, 582-596, 2011.
70. Harsch, M. A., Hulme, P. E., McGlone, M. S., and Duncan, R. P.: Are treelines advancing? A global meta-analysis of treeline response to climate warming, Ecol. Lett., 12, 1040-1049, 2009.
71. He, M., Yang, B., and Bräuning, A.: Tree growth-climate relationships of Juniperus tibetica along an altitudinal gradient on the southern Tibetan Plateau, Trees, 27, 429-439, 2013.
72. Hijmans, R. J., Cameron, S. E., Parra, J. L., Jones, P. G., and Jarvis, A.: Very high resolution interpolated climate surfaces for global land areas, Int. J. Climatol., 25, 1965-1978, 2005.
73. Hoch, G. and Körner, C.: Global patterns of mobile carbon stores in trees at the high-elevation tree line, Global Ecol. Biogeogr., 21, 861-871, 2012.
74. Hoch, G., Popp, M., and Körner, C.: Altitudinal increase in mobile carbon pools in Pinus cembra suggests sink limitation in growth at the Swiss treeline, Oikos, 98, 361-374, 2002.
75. Hofgaard, A., Dalen, L., and Hytteborn, H.: Tree recruitment above the treeline and potential for climate-driven treeline change, J. Veg. Sci., 20, 1133-1144, 2009.
76. Holtmeier, F. K.: Mountain Timberlines. Ecology, Patchiness, and Dynamics, Springer, Dordrecht, 2009.
77. Holtmeier, F. K. and Broll, G.: Sensitivity and response of northern hemisphere altitudinal and polar treelines to environmental change at landscape and local scales, Global Ecol. Biogeogr., 14, 395-410, 2005.
78. Holtmeier, F. K. and Broll, G.: Treeline advance-driving processes and adverse factors, Landscape Online, 1, 1-21, 2007.
79. Holtmeier, F. K. and Broll, G.: Altitudinal and polar treelines in the northern hemisphere-causes and response to climate change, Polarforschung, 79, 139-153, 2009.
80. Holtmeier, F. K. and Broll, G.: Landform influences on treeline patchiness and dynamics in a changing climate, Phys. Geogr., 33, 403-437, 2012.
81. Jain, S. K., Kumar, V., and Saharia, M.: Analysis of rainfall and temperature trends in northeast India, Int. J. Climatol., 33, 968-978, 2013.
82. Kabeya, D.: Differentiating between the adverse effects of nutrientlimitation and direct-cold-limitation on tree growth at high altitudes, Arct., Antarct., Alp. Res., 42, 430-437, 2010.
83. Kharuk, V. I., Ranson, K. J., Im, S. T., and Vdovin, A. S.: Spatial distribution and temporal dynamics of high-elevation forest stands in southern Siberia, Global Ecol. Biogeogr., 19, 822-830, 2010.
84. Kohler, T., Giger, M., Hurni, H., Ott, C., Wiesmann, U., Wymann von Dach, S., and Maselli, D.: Mountains and climate change: A global concern, Mt. Res. Dev., 30, 53-55, 2010.
85. Körner, C.: A re-assessment of high elevation treeline positions and their explanation, Oecologia, 115, 445-459, 1998.
86. Körner, C.: Alpine Treelines. Functional Ecology of the High Elevation Tree Limits, Springer, Basel, 2012a.
87. Körner, C.: Treelines will be understood, once the functional difference between a tree and a shrub is, Ambio, 41, 197-206, 2012b.
88. Körner, C. and Paulsen, J.: A world-wide study of high altitude treeline temperatures, J. Biogeogr., 31, 713-732, 2004.
89. Kullman, L.: Tree-limits and montane forests in the Swedish Scandes: Sensitive biomonitors of climate change and variability, Ambio, 27, 312-321, 1998.
90. Kullman, L.: Tree-limit rise and recent warming: A geoecological case study from the Swedish Scandes, Norsk Geogr. Tidsskr., 54, 49-59, 2000.
91. Kullman, L.: Treeline population monitoring of Pinus sylvestris in the Swedish Scandes 1973-2005: Implications for treeline theory and climate change ecology, J. Ecol., 95, 41-52, 2007.
92. Kullman, L.: Thermophilic tree species reinvade subalpine Sweden-early responses to anomalous late Holocene climate warming, Arct., Antarct., Alp. Res., 40, 104-110, 2008.
93. Kullman, L. and Öberg, L.: Post-Little Ice Age tree line rise and climate warming in the Swedish Scandes: A landscape ecological perspective, J. Ecol., 97, 415-429, 2009.
94. Kumar, P.: Assessment of impact of climate change on Rhododendrons in Sikkim Himalayas using Maxent modelling: limitations and challenges, Biodiv. Conserv., 21, 1251-1266, 2012.
95. Laurance, W. F., Carolina Useche, D., Shoo, L. P., Herzog, S. K., Kessler, M., Escobar, F., Brehm, G., Axmacher, J. C., Chen, I. C., Gámez, L. A., Hietz, P., Fiedler, K., Pyrcz, T.,Wolf, J., Merkord, C.L., Cardelus, C., Marshall, A. R., Ah-Peng, C., Aplet, G. H., Arizmendi, M. C., Baker, W. J., Barone, J., Brühl, C. A., Bussmann, R. W., Cicuzza, D., Eilu, G., Favila, M. E., Hemp, A., Hemp, C., Homeier, J., Hurtado, J., Jankowski, J., Kattán, G., Kluge, J., Krömer, T., Lees, D. C., Lehnert, M., Longino, J. T., Lovett, J., Martin, P. H., Patterson, B. D., Pearson, R. G., Peh, K. S. H., Richardson, B., Richardson, M., Samways, M. J., Senbeta, F., Smith, T. B., Utteridge, T. M. A., Watkins, J. E., Wilson, R., Williams, S. E., and Thomas, C. D.: Global warming, elevational ranges and the vulnerability of tropical biota, Biol. Conserv., 144, 548-557, 2011.
96. Lescop-Sinclair, K. and Payette, S.: Recent advance of the arctic treeline along the eastern coast of Hudson Bay, J. Ecol., 83, 929-936, 1995.
97. Liang, E., Shao, X. M., and Xu, Y.: Tree-ring evidence of recent abnormal warming on the southeast Tibetan Plateau, Theor. Appl. Climatol., 98, 9-18, 2009.
98. Liang, E., Wang, Y., Xu, Y., Liu, B., and Shao, X.: Growth variations of Abies georgei var. smithii along altitudinal gradients in the Sygera Mts., southeastern Tibetan Plateau, Trees, 24, 363-373, 2010.
99. Liang, E., Wang, Y., Eckstein, D., and Luo, T.: Little change in the fir tree-line position on the southeastern Tibetan Plateau after 200 years of warming, New Phytol., 190, 760-769, 2011.
100. Liang, E., Dawadi, B., Pederson, N., and Eckstein, D.: Is the growth of birch at the upper timberline in the Himalayas limited by moisture or by temperature?, Ecology, 95, 2453-2465, 2014.
101. Liu, B., Li, Y., Eckstein, D., Zhu, L., Dawadi, B., and Liang, E.: Has an extended growing season any effect on the radial growth of Smith fir at the timberline on the southeastern Tibetan Plateau?, Trees, 27, 441-446, 2013.
102. Liu, J., Qin, C., and Kang, S.: Growth response of Sabina tibetica to climate factors along an elevation gradient in South Tibet, Dendrochronologia, 31, 255-265, 2013.
103. Liu, X. and Chen, B.: Climatic warming in the Tibetan Plateau during recent decades, Int. J. Climatol., 20, 1729-1742, 2000.
104. Lloyd, A. H.: Ecological histories from Alaskan tree lines provide insight into future change, Ecology, 86, 1687-1695, 2005.
105. Lloyd, A. H. and Fastie, C. L.: Spatial and temporal variability in the growth and climate response of treeline trees in Alaska, Clim. Change, 52, 481-509, 2002.
106. Lv, L. X. and Zhang, Q. B.: Asynchronous recruitment history of Abies spectabilis along an altitudinal gradient in the Mt. Everest region, J. Plant Ecol., 5, 147-156, 2012.
107. MacDonald, G. M., Velichko, A. A., and Gattaulin, V. N.: Holocene treeline history and climate change across northern Eurasia, Quatern. Res., 53, 302-311, 2000.
108. Maher, E. L. and Germino, M. J.: Microsite differentiation among conifer species during seedling establishment at alpine treeline, Ecoscience, 13, 334-341, 2006.
109. Malanson, G. P., Butler, D. R., Fagre, D. B., Walsh, S. J., Tomback, D. F., Daniels, L. D., Resler, L. M., Smith, W. K., Weiss, D. J., Peterson, D. L., Bunn, A. G., Hiemstra, C. A., Liptzin, D., Bourgeron, P. S., Shen, Z., and Millar, C. I.: Alpine treeline of western North America: Linking organism-to-landscape dynamics, Phys. Geogr., 28, 378-396, 2007.
110. Malanson, G. P., Resler, L. M., Bader, M. Y., Holtmeier, F. K., Butler, D. R., Weiss, D. J., Daniels, L. D., and Fagre, D. B.: Mountain treelines: a roadmap for research orientation, Arct., Antarct., Alp. Res., 43, 167-177, 2011.
111. Maussion, F., Scherer, D., Mölg, T., Collier, E., Curio, J., and Finkelnburg, R.: Precipitation seasonality and variability over the Tibetan Plateau as resolved by the High Asia reanalysis, J. Climate, 27, 1910-1927, 2013.
112. Miehe, G.: Langtang Himal. Flora und Vegetation als Klimazeiger und-zeugen im Himalaya. A prodromus of the vegetation ecology of the Himalayas, Diss. Bot. 158, Berlin-Stuttgart, 1990.
113. Miehe, G.: Alpine vegetation types of the central Himalaya, in: Polar and Alpine Tundra, Ecosystems of the World 3, edited by: Wielgolaski, F. E., 161-184, Elsevier, Amsterdam, 1997.
114. Miehe, G.: Himalaya, in: Gebirge der Erde. Landschaft, Klima, Pflanzenwelt, edited by: Burga, C. A., Klötzli, F., and Grabherr, G., 325-359, Ulmer, Stuttgart, 2004.
115. Miehe, G. and Miehe, S.: Comparative high mountain research on the treeline ecotone under human impact, Erdkunde, 54, 34-50, 2000.
116. Miehe, G., Miehe, S., Vogel, J., Co, S., and La, D.: Highest treeline in the northern hemisphere found in southern Tibet, Mount. Res. Develop., 27, 169-173, 2007.
117. Moiseev, P. A., Bartysh, A. A., and Nagimov, Z. Y.: Climate changes and tree stand dynamics at the upper limit of their growth in the North Ural Mountains, Russ. J. Ecol., 41, 486-497, 2010.
118. Munier, A., Hermanutz, L., Jacobs, J. D., and Lewis, K.: The interacting effects of temperature, ground disturbance, and herbivory on seedling establishment: Implications for treeline advance with climate warming, Plant Ecol., 210, 19-30, 2010.
119. Naidu, C. V., Durgalakshmi, K., Muni Krishna, K., Ramalingeswara Rao, S., Satyanarayana, G. C., Lakshminarayana, P., and Malleswara Rao, L.: Is summer monsoon rainfall decreasing over India in the global warming era?, J. Geophys. Res., 114, D24108, doi:10.1029/2008JD011288, 2009.
120. Negi, P. S.: Climate change, alpine treeline dynamics and associated terminology: focus on northwestern Indian Himalaya, Trop. Ecol., 53, 371-374, 2012.
121. Ohse, B., Jansen, F., and Wilmking, M.: Do limiting factors at Alaskan treelines shift with climatic regimes?, Environ. Res. Lett., 7, 015505 doi:10.1088/1748-9326/7/1/015505, 2012.
122. Panigrahy, S., Anitha, D., Kimothi, M. M., and Singh, S. P.: Timberline change detection using topographic map and satellite imagery, Trop. Ecol., 51, 87-91, 2010.
123. Pant, G. B., Rupa Kumar, K., and Yamashita, K.: Climatic response of Cedrus deodara tree-ring parameters from two sites in the western Himalaya, Can. J. For. Res., 30, 1127-1135, 2000.
124. Paulsen, J. and Körner, C.: A climate-based model to predict potential treeline position around the globe, Alp. Bot., 124, 1-12, 2014.
125. Paulsen, J.,Weber, U. M., and Körner, C.: Tree growth near treeline: Abrupt or gradual reduction with altitude? Arct., Antarct., Alp. Res., 32, 14-20, 2000.
126. Phillips, S. J., Anderson, R. P., and Schapire, R. E.: Maximum entropy modeling of species geographic distributions, Ecol. Model., 190, 231-259, 2006.
127. Qi, Z., Liu, H., Wu, X., and Hao, Q.: Climate-driven speedup of alpine treeline forest growth in the Tianshan Mountains, northwestern China, Global Change Biol., 21, 816-826, 2015.
128. Rai, I. D., Bharti, R. R., Adhikari, B. S., and Rawat, G. S.: Structure and functioning of timberline vegetation in the western Himalaya: A case study, in: High-Altitude Rangelands and their Interfaces in the Hindu Kush Himalayas, edited by:Wu, N., Rawat, G. S., Joshi, S., Ismail, M., and Sharma, E., 91-107, ICIMOD, Kathmandu, 2013.
129. Ram, S. and Borgaonkar, H. P.: Growth response of conifer trees from high altitude region of western Himalaya, Curr. Sci., 105, 225-231, 2013.
130. Ram, S. and Borgaonkar, H. P.: Tree-ring analysis over western Himalaya and its long-term association with vapor pressure and potential evapotranspiration, Dendrochronologia, 32, 32-38, 2014.
131. Rawal, R. S. and Pangtey, Y. P. S.: High altitude forests with special reference to timber line in Kumaun, central Himalaya, in: High Altitudes of the Himalaya. Biogeography, Ecology & Conservation, edited by: Pangtey, Y. P. S. and Rawal, R. S., 353-399, Gyanodaya Prakashan, Nainital, 1994.
132. Rawat, D. S.: Monitoring ecosystem boundaries in the Himalaya through an "eye in the sky", Curr. Sci., 102, 1352-1354, 2012.
133. Reasoner, M. A. and Tinner, W.: Holocene treeline fluctuations, in: Encyclopedia of Paleoclimatology and Ancient Environments, edited by: Gornitz, V., Springer, Dordrecht, 442-446, 2009.
134. Ren, Q. S., Yang, X. L., Cui, G. F., Wang, J. S., Huang, Y., Wei, X. H., and Li, Q. L.: Smith fir population structure and dynamics in the timberline ecotone of the Sejila Mountain, Tibet, China, Acta Ecol. Sinica, 27, 2669-2677, 2007.
135. Rolland, C., Petitcolas, V., and Michalet, R.: Changes in radial tree growth for Picea abies, Larix decidua, Pinus cembra and Pinus uncinata near the alpine timberline since 1750, Trees, 13, 40-53, 1998.
136. Romatschke, U., Medina, S., and Houze, R. A.: Regional, seasonal, and diurnal variations of extreme convection in the South Asian region, J. Climate, 23, 419-439, 2010.
137. Rössler, O., Bräuning, A., and Löffler, J.: Dynamics and driving forces of treeline fluctuation and regeneration in central Norway during the past decades, Erdkunde, 62, 117-128, 2008.
138. Roush, W., Munroe, J. S., and Fagre, D. B.: Development of a spatial analysis method using ground-based repeat photography to detect changes in the alpine treeline ecotone, Glacier National Park, Montana, USA, Arct., Antarct., Alp. Res., 39, 297-308, 2007.
139. Salzer, M. W., Hughes, M. K., Bunn, A. G., and Kipfmueller, K. F.: Recent unprecedented tree-ring growth in bristlecone pine at the highest elevations and possible causes, Proc. Natl. Acad. Sci., 106, 20348-20353, 2009.
140. Sano, M., Furuta, F., Kobayashi, O., and Sweda, T.: Temperature variations since the mid-18th century for western Nepal, as reconstructed from tree-ring width and density of Abies spectabilis, Dendrochronologia, 23, 83-92, 2005.
141. Schickhoff, U.: Himalayan forest-cover changes in historical perspective. A case study in the Kaghan Valley, northern Pakistan, Mount. Res. Develop., 15, 3-18, 1995.
142. Schickhoff, U.: Persistence and dynamics of long-lived forest stands in the Karakorum under the influence of climate and man, in: Environmental Changes in High Asia. Proceedings of an International Symposium at the University of Marburg, edited by: Miehe, G. and Zhang, Y., Marburger Geogr. Schr., 135, 250-264, 2000.
143. Schickhoff, U.: Die Degradierung der Gebirgswälder Nordpakistans. Faktoren, Prozesse und Wirkungszusammenhänge in einem regionalen Mensch-Umwelt-System, Erdwiss. Forsch. 41, Steiner Verlag, Stuttgart, 2002.
144. Schickhoff, U.: The upper timberline in the Himalayas, Hindu Kush and Karakorum: A review of geographical and ecological aspects, in: Mountain Ecosystems. Studies in Treeline Ecology, edited by: Broll, G. and Keplin, B., 275-354, Springer, Berlin-Heidelberg, 2005.
145. Schickhoff, U.: Dynamics of mountain ecosystems, in: Handbook of Biogeography, edited by: Millington, A., Blumler, M., and Schickhoff, U., 313-337, Sage Publ., London, 2011.
146. Schmidt-Vogt, D.: High Altitude Forests in the Jugal Himal (Eastern Central Nepal). Forest Types and Human Impact. Geoecol. Res. 6, Steiner Verlag, Stuttgart, 1990.
147. Shen, W., Zhang, L., Liu, X., and Luo, T.: Seed-based treeline seedlings are vulnerable to freezing events in the early growing season under a warmer climate: Evidence from a reciprocal transplant experiment in the Sergyemla Mountains, southeast Tibet, Agric. For. Meteor., 187, 83-92, 2014.
148. Shrestha, A. B.,Wake, C. P., Mayewski, P. A., and Dibb, J. E.: Maximum temperature trends in the Himalaya and its vicinity: An analysis based on temperature records from Nepal for the period 1971-94, J. Climate, 12, 2775-2786, 1999.
149. Shrestha, B. B., Ghimire, B., Lekhak, H. D., and Jha, P. K.: Regeneration of tree line birch (Betula utilis D.Don) forest in trans-Himalayan dry valley in central Nepal, Mt. Res. Dev., 27, 259-267, 2007.
150. Shrestha, K. B.: Treeline and vegetation dynamics in response to environmental changes in Nepal, the central Himalaya, PhD Diss., Univ. of Bergen, Norway, 2013.
151. Shrestha, U. B., Gautam, S., and Bawa, K. S.: Widespread climate change in the Himalayas and associated changes in local ecosystems, PLoS ONE 7, e36741, doi:10.1371/journal.pone.0036741, 2012.
152. Singh, C. P., Panigrahy, S., Thapliyal, A., Kimothi, M. M., Soni, P., and Parihar, J. S.: Monitoring the alpine treeline shift in parts of the Indian Himalayas using remote sensing, Curr. Sci., 102, 559-562, 2012.
153. Singh, C. P., Panigrahy, S., Parihar, J. S., and Dharaiya, N.: Modeling environmental niche of Himalayan birch and remote sensing based vicarious validation, Trop. Ecol., 54, 321-329, 2013.
154. Singh, J., Park, W. K., and Yadav, R. R.: Tree-ring-based hydrological records for western Himalaya, India, since AD 1560, Clim. Dynam., 26, 295-303, 2006.
155. Singh, J. and Yadav, R. R.: Tree-ring indications of recent glacier fluctuations in Gangotri, western Himalaya, India, Curr. Sci., 79, 1598-1601, 2000.
156. Singh, J. and Yadav, R. R.: Spring precipitation variations over the western Himalaya, India, since A.D. 1731 as deduced from tree rings, J. Geophys. Res., 110, D01110, doi:10.1029/2004JD004855, 2005.
157. Singh, J. and Yadav, R. R.: February-June temperature variability in western Himalaya, India, since AD 1455, Quatern. Int., 349, 98-104, 2014.
158. Singh, J. S. and Singh, S. P.: Forests of Himalaya, Gyanodaya Prakashan, Nainital, 1992.
159. Slatyer, R. O. and Noble, I. R.: Dynamics of montane treelines, in: Landscape Boundaries. Consequences for Biotic Diversity and Ecological Flows, edited by: di Castri, F. and Hansen, A. J., 346-359, Springer, New York, 1992.
160. Smith, W. K., Germino, M. J., Hancock, T. E., and Johnson, D. M.: Another perspective on altitudinal limits of alpine timberlines, Tree Physiol., 23, 1101-1112, 2003.
161. Smith, W. K., Germino, M. J., Johnson, D. M., and Reinhardt, K.: The altitude of alpine treeline: a bellwether of climate change effects, Bot. Rev., 75, 163-190, 2009.
162. Telwala, Y., Brook, B. W., Manish, K., and Pandit, M. K.: Climateinduced elevational range shifts and increase in plant species richness in a Himalayan biodiversity epicentre, PLoS ONE 8, e57103, doi:10.1371/journal.pone.0057103, 2013.
163. Theurillat, J. P. and Guisan, A.: Potential impacts of climate change on vegetation in the European Alps: A review, Clim. Change, 50, 77-109, 2001.
164. Tinner,W. and Theurillat, J. P.: Uppermost limit, extent, and fluctuations of the timberline and treeline ecocline in the Swiss Central Alps during the past 11,500 years, Arct., Antarct., Alp. Res., 35, 158-169, 2003.
165. Villalba, R., Boninsegna, J. A., Veblen, T. T., Schmelter, A., and Rubulis, S.: Recent trends in tree-ring records from high elevation sites in the Andes of northern Patagonia, Clim. Change, 36, 425-454, 1997.
166. Vittoz, P., Rulence, B., Largey, T., and Freléchoux, F.: Effects of climate and land-use change on the establishment and growth of Cembran Pine (Pinus cembra L.) over the altitudinal treeline ecotone in the central Swiss Alps, Arct., Antarct., Alp. Res., 40, 225-232, 2008.
167. Wallentin, G., Tappeiner, U., Strobl, J., and Tasser, E.: Understanding alpine tree line dynamics: An individual-based model, Ecol. Model., 218, 235-246, 2008.
168. Wang, S. Y., Yoon, J. H., Gillies, R. R., and Cho, C.: What caused the winter drought in western Nepal during recent years?, J. Climate, 26, 8241-8256, 2013.
169. Wang, T., Zhang, Q. B., and Ma, K. P.: Treeline dynamics in relation to climatic variability in the central Tianshan Mountains, northwestern China, Global Ecol. Biogeogr., 15, 406-415, 2006.
170. Wang, Y., Camarero, J. J., Luo, T., and Liang, E.: Spatial patterns of Smith fir alpine treelines on the south-eastern Tibetan Plateau support that contingent local conditions drive recent treeline patterns, Plant Ecol. Div., 5, 311-321, 2012.
171. Wiens, J. J., Ackerly, D. D., Allen, A. P., Anacker, B. L., Buckley, L. B., Cornell, H. V., Damschen, E. I., Davies, T. J., Grytnes, J. A., Harrison, S. P., Hawkins, B. A., Holt, R. D., McCain, C. M., and Stephens, P. R.: Niche conservatism as an emerging principle in ecology and conservation biology, Ecol. Lett., 13, 1310-1324, 2010.
172. Wieser, G.: Limitation by an insufficient carbon assimilation and allocation, in: Trees at Their Upper Limit. Treelife Limitation at the Alpine Timberline, edited by: Wieser, G. and Tausz, M., 79-129, Springer, Dordrecht, 2007.
173. Wieser, G.: Lessons from the timberline ecotone in the Central Tyrolean Alps: A review. Plant Ecol. Div., 5, 127-139, 2012.
174. Wong, M. H., Duan, C., Long, Y., Luo, Y., and Xie, G.: How will the distribution and size of subalpine Abies georgei forest respond to climate change? A study in Northwest Yunnan, China, Phys. Geogr., 31, 319-335, 2010.
175. Xu, J., Grumbine, R. E., Shrestha, A., Eriksson, M., Yang, X., Wang, Y., and Wilkes, A.: The melting Himalayas: cascading effects of climate change on water, biodiversity, and livelihoods, Conserv. Biol., 23, 520-530, 2009.
176. Yadav, R. R. and Singh, J.: Tree-ring analysis of Taxus baccata from the western Himalaya, India, and its dendroclimatic potential, Tree-Ring Res., 58, 23-29, 2002.
177. Yadav, R. R., Bräuning, A., and Singh, J.: Tree ring inferred summer temperature variations over the last millennium in western Himalaya, India, Clim. Dynam., 36, 1545-1554, 2011.
178. Yadav, R. R., Park, W. K., and Bhattacharyya, A.: Dendroclimatic reconstruction of April-May temperature fluctuations in the western Himalaya of India since A.D. 1968, Quatern. Res., 48, 187-191, 1997.
179. Yadav, R. R., Park, W. K., and Bhattacharyya, A.: Springtemperature variations in western Himalaya, India, as reconstructed from tree-rings: AD 1390-1987, The Holocene, 9, 85-90, 1999.
180. Yadav, R. R., Singh, J., Dubey, B., and Chaturvedi, R.: Varying strength of relationship between temperature and growth of high level fir at marginal ecosystems in western Himalaya, India, Curr. Sci., 86, 1152-1156, 2004.
181. Yadav, R. R., Singh, J., Dubey, B., and Misra, K. G.: A 1584-year ring width chronology of juniper from Lahul, Himachal Pradesh: Prospects of developing millennia-long climate records, Curr. Sci., 90, 1122-1126, 2006.
182. Yao, Y. and Zhang, B.: The mass elevation effect of the Tibetan Plateau and its implications for alpine treelines, Int. J. Climatol., 34, doi:10.1002/joc.4123, 2014.
183. Zhang, Y., Shao, X., and Wilmking, M.: Dynamic relationships between Picea crassifolia growth and climate at upper treeline in the Qilian Mts., Northeast Tibetan Plateau, China, Dendrochronologia, 29, 185-199, 2011.
184. Zhu, H. F., Shao, X. M., Yin, Z. Y., Xu, P., Xu, Y., and Tian, H.: August temperature variability in the southeastern Tibetan Plateau since AD 1385 inferred from tree rings, Palaeogeogr. Palaeoclimatol. Palaeoecol., 305, 84-92, 2011.
185. Zurbriggen, N., Hättenschwiler, S., Frei, E. S., Hagedorn, F., and Bebi, P.: Performance of germinating tree seedlings below and above treeline in the Swiss Alps, Plant Ecol., 214, 385-396, 2013.