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Tropical Ecology

, Volume 60, Issue 3, pp 337–349 | Cite as

Effect of disturbance on population structure, regeneration and conservation of Moghania chappar in sal forests of Gorakhpur, India

  • Sanjay Kumar PandeyEmail author
  • Ravindra. P. Shukla
Research Article
First Online:
  • 18 Downloads

Abstract

Non-seed regeneration is essentially a vagrant strategy of woody plants causing assemblage of homozygous populations in disturbed forests. We tried to understand how such hardy species like Moghania chappar produce close groups of individuals at different level of disturbance. The hypothesis of trade-off between ramet proliferation and disturbance level, and between growth pattern and resource conservation was tested. The three 1-ha sample plots of sal forest, facing low, moderate or high level of disturbance were observed within Sohagibarwa Wildlife Sanctuary. A total of 40 quadrats per 1-ha plot were sampled to record the age structure of genet and ramet populations of M. chappar. The architecture and foraging of the root-stock was mapped, the biomass of root and shoot was measured and the soil conserved by the root-complex was estimated at each disturbance level. The growth characteristics suggest that M. chappar conforms to Stone’s model of tree architecture. At moderate disturbance, the root-shoot junction sent many more sprouts, garnered much biomass and became flat and curved. The insurrection of ramets caused fragmentation of the root-complex. This clonal growth strategy, however, was neither clearly ‘phalanx’ nor ‘guerrilla’ type. It resulted in intermittent shallow cavities within fragmented root-stock that got filled with soil rich in organic matter. The growth strategy of the species showed potential to restore the soil system and to conserve the diversity of minor biota. In moderately disturbed sal forest, the understorey paved way to prolific non-seed regeneration of this fugitive mid-successional species. At moderate heat stress, the number of individuals as well as the proportion of seedlings per population was highest. The species rapidly increased the understorey foliage by producing a metapopulation of usable sprouts/ramets that facilitated retention of soil and nutrients within their root traps. The total extractible shoot biomass per plant was quite large as a ~ 6 year old individual weighed 473.5 ± 27.4 g. This study of clonal plant ecology may provide new impetus to the conservation of degraded forest ecosystems.

Keywords

Disturbance Genet/ramet population M. chappar Regeneration strategy Root-complex Sal forest Soil conservation 
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Notes

Acknowledgements

We are thankful to the Head, Department of Botany for providing laboratory facilities and forest officers of Gorakhpur Forest Division for their active cooperation in the field. We also thankful to Dr. Satish Kumar Rai for assisting in field observation. We express our gratitude to two anonymous referees for their critical comments and guidelines to improve the manuscript.

References

  1. Bond WJ, Midgley JJ (2001) Ecology of sprouting in woody plants: the persistence niche. Trends Ecol Evol 16:45–51CrossRefGoogle Scholar
  2. Callaghan TV, Carlsson BA, Jonsdottir IS, Svensson BM, Jonasson S (1992) Clonal plants and environmental change: introduction to the proceedings and summary. Oikos 63:341–347CrossRefGoogle Scholar
  3. Champion HG, Seth SK (1968) General silviculture for India. Publication Branch, Department of Printing and Stationary Government of India, DelhiGoogle Scholar
  4. Clarke PJ, Kmox KJE, Wills KE, Campbell M (2005) Landscape patterns of woody plant response of crown fire: disturbance and productivity influence sprouting ability. J Ecol 93:544–555CrossRefGoogle Scholar
  5. Clarke PJ, Lawes MJ, Midgley JJ (2010) Resprouting as a key functional trait in woody plants—challenges to developing new organizing principles. New Phytol 188:651–654CrossRefGoogle Scholar
  6. Clarke PJ, Lawes MJ, Midgley JJ, Lamont BB, Ojeda F, Burrows GE, Enright NJ, Knox KJE (2013) Resprouting as a key functional trait: how buds, protection and resources drive persistence after fire. New Phytol 197:19–35CrossRefGoogle Scholar
  7. Cornelissen JHC, Song YB, Yu FH, Dong M (2014) Plant traits and ecosystem effects of clonality: a new research agenda. Ann Bot 114:369–376CrossRefGoogle Scholar
  8. de Kroon H, Huber H, Stuefer JF, von Groenendael JM (2005) A modular concept of phenotypic plasticity in plants. New Phytol 166:73–82CrossRefGoogle Scholar
  9. Doust JL, Doust LL (1982) The battle strategies of plants. New Sci 95:81–84Google Scholar
  10. Eriksson O (1993) Dynamics of genets in clonal plants. Trends Ecol Evol 8:313–316CrossRefGoogle Scholar
  11. Guerrero-Campo J, Palacio S, Rontome CP, Marti GM (2006) Effect of root system morphology on root-sprouting and shoot-rooting abilities in 123 plant species from eroded lands in north-east Spain. Ann Bot 98:439–447CrossRefGoogle Scholar
  12. Halle F, Oldeman RAA, Tomlinson PB (1978) Tropical trees and forests. An architectural analysis. Springer, BerlinGoogle Scholar
  13. Kabeya D, Sakai S (2005) The relative importance of carbohydrate and nitrogen for the resprouting ability of Quercus crispula seedlings. Ann Bot 96:101–108CrossRefGoogle Scholar
  14. Kays S, Harper JL (1974) The regulation of plant growth and tiller density in a grass sward. J Ecol 62:97–105CrossRefGoogle Scholar
  15. Keely JE, Pausas JG, Rundel PW, Bond WJ, Bradstock RA (2001) Fire as an evolutionary pressure shaping plant traits. Trends Plant Sci 16:406–411CrossRefGoogle Scholar
  16. Liu F, Liu J, Dong M (2016) Ecological consequences of clonal integration in plants. Front Plant Sci 7:770PubMedPubMedCentralGoogle Scholar
  17. Meyer AH, Schmid B (1999) Experimental demography of the old field perennial Solidago altissima: the dynamics of the shoot population. J Ecol 87:17–27CrossRefGoogle Scholar
  18. Mooney HA, Vitousek PM, Maston PN (1987) Exchange of materials between terrestrial ecosystems and the atmosphere. Science 238:926–932CrossRefGoogle Scholar
  19. Navas ML, Garnier E (1990) Demography and growth forms of the clonal perennial Rubia peregrina in Mediterranean vineyard and unmanaged habitats. J Ecol 78:691–712CrossRefGoogle Scholar
  20. Oborny BT, Czaran KunA (2001) Exploration and exploitation of resource patches by clonal growth: a spatial model on the effect of transport between modules. Ecol Model 141:151–169CrossRefGoogle Scholar
  21. Palacio S, Maestro M, Marti GM (2007) Relationship between shoot-rooting and root-sprouting abilities and the carbohydrate and nitrogen reserves of Mediterranean dwarf shrubs. Ann Bot 100:865–874CrossRefGoogle Scholar
  22. Pandey SK (2000) Population status and regeneration strategy of some perennial legumes in plantation forests of N.-E. UP. Ph.D. Thesis, University of Gorakhpur, Gorakhpur, IndiaGoogle Scholar
  23. Pandey SK, Shukla RP (2001) Regeneration strategy and plant diversity status in degraded sal forests. Curr Sci 81:95–102Google Scholar
  24. Pandey SK, Shukla RP (2003) Plant diversity in managed sal (Shorea robusta Gaertn.) forests of Gorakhpur, India: species composition, regeneration and conservation. Biol Conserv 12:2295–2319Google Scholar
  25. Pandey SK, Shukla RP (2018) Plant population structure and species diversity status at two disturbance regimes within mixed forests and sal forests of Gorakhpur, India. Int J Ecol Environ Sci 44:43–58Google Scholar
  26. Sagar R, Raghubanshi R, Singh RS (2008) Comparison of community composition and Species diversity of understorey and overstorey tree species in a dry tropical forest of northern India. J Environ Manag 88:1037–1046CrossRefGoogle Scholar
  27. Saha S, Howe HF (2003) Species composition and fire in a dry deciduous forest. Ecology 84:3118–3123CrossRefGoogle Scholar
  28. Shibata R, Shibata M, Tanaka H, Iida S, Masaki T, Hatta F, Kurokawa H, Nakashizuka T (2014) Interspecific variation in the size-dependent resprouting ability of temperate woody species and its adaptive significance. J Ecol 102:209–220CrossRefGoogle Scholar
  29. Shukla RP, Ramakrishnan PS (1984) Biomass allocation strategies and productivity of tropical trees related to successional status. For Ecol Manag 9:315–324CrossRefGoogle Scholar
  30. Shukla RP, Ramakrishnan PS (1986) Architecture and growth strategies of tropical trees in relation to successional status. J Ecol 74:33–46CrossRefGoogle Scholar
  31. Smith IPJ, Asner GP, Govender N, Kennedy-Bowdon T, Knapp DE, Jacobson J (2010) Effect of fire on woody vegetation structure in African savanna. Ecol Appl 20:1865–1875CrossRefGoogle Scholar
  32. Steinger T, Korner C, Schmid B (1996) Long-term persistence in a changing climate: DNA analysis suggests very old ages of clones of alpine Carex curvula. Oecologia 105:94–99CrossRefGoogle Scholar
  33. Stocklin J, Winkler E (2004) Optimum reproduction and dispersal strategies of a clonal plant in a metapopulation: a simulation study with Hieracium pilosell. Evol Ecol 18:563–584CrossRefGoogle Scholar
  34. Tiwari AK, Shukla RP (1995) On the neighborhood relationships of two common understorey trees of a Shorea robusta community. Ann Bot 75:127–132CrossRefGoogle Scholar
  35. Vesk PA, Westoby M (2004) Sprouting ability across diverse disturbances and vegetation types worldwide. J Ecol 92:310–320CrossRefGoogle Scholar
  36. Vieira DLM, Scariot A (2006) Principles of natural regeneration of tropical dry forests for restoration. Restor Ecol 14:11–20CrossRefGoogle Scholar
  37. Virginia RA (1986) Soil development under legume tree canopies. For Ecol Manag 16:69–79CrossRefGoogle Scholar
  38. Vivian LM, Cary GJ (2012) Relationship between leaf traits and fire-response strategies in shrub species of a mountainous region of south-eastern Australia. Ann Bot 109:197–208CrossRefGoogle Scholar
  39. Wikberg S, Svensson BM (2003) Ramet demography in a ring-forming clonal sedge. J Ecol 91:847–854CrossRefGoogle Scholar
  40. Williams JD, McCool DK, Reardson CL, Douglas CJ Jr, Albrecht SL, Rickman RW (2013) Root: shoot ratio and below ground biomass distribution for pacific northeast dry land crops. J Soil Water Conserv 68:349–360CrossRefGoogle Scholar
  41. Ye X-H, Yu F-H, Dong M (2006) A trade-off between guerrilla and phalanx growth forms in Leymus secalinus under different nutrient supplies. Ann Bot 98:187–191CrossRefGoogle Scholar

Copyright information

© International Society for Tropical Ecology 2019

Authors and Affiliations

  1. 1.Department of BotanyD. A. V. PG CollegeGorakhpurIndia
  2. 2.Plant Ecology Laboratory, Department of BotanyDDU Gorakhpur UniversityGorakhpurIndia

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