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The Relationship of Visiting Insect Diversity and Density of Valeriana jatamansi with Increasing Altitude in Western Himalaya

  • Arun K. JugranEmail author
  • Ravindra K. Joshi
  • Indra D. Bhatt
  • Ranbeer S. Rawal
  • Lok Man S. Palni
Research Article
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Abstract

In light of the recent evidences that pollinators have a significant implication for maintenance of pollen-mediated gene flow, the present study has been undertaken to investigate flowering phenology and visiting insect diversity and density in 9 different populations of Valeriana jatamansi. The performance of the V. jatamansi breeding system was also investigated at an experimental site. Field experiments were performed on control and visiting insect excluded plants (a total of 90 plants). Across populations, a total of 76 visiting insects belonging to 20 species were recorded. Comparison of visiting insects excluded plants and natural plants revealed 63.49% seed setting produced by natural-pollination, whereas only 37.51% of seeds were produced by self-pollination. Significantly higher seed viability (t = 4.284; p < 0.02) was recorded in seeds from control plants as compared to visiting insect excluded plants. Similarly, higher seed germination (38%) and seed weight were recorded in control plants as compared to visiting insect excluded plants. The total insect number (r = − 0.707) and species diversity (− 0.897) exhibited significantly (p < 0.05) negative relationship with altitude. A significant negative correlation existed between plant density and altitude (r = − 0.772; p < 0.05). The study provides further evidence that pollinators (and their diversity) are critical for sustaining genetic diversity and consequent adaptive capability in V. jatamansi.

Keywords

Breeding Habitat types Flowering phenology Valeriana jatamansi Pollination 

Notes

Acknowledgements

The authors thank Dr. P. P. Dhyani, Director, GBPNIHESD for use of the facilities and encouragement and they also thank Mr. Tarun Belwal for helping to perform the seed germination experiments and colleagues of the Biodiversity Conservation and Management Theme for their assistance during this study. Partial funding support from SERB, New Delhi (DST No: SB/YS/LS-162/262) and GEF/UNEP/FAO Global pollination project (GPP) is acknowledged.

Compliance with Ethical Standards

Conflict of interest

The authors declare that they have no conflict of interest to publish this manuscript in PNASIB.

Supplementary material

40011_2017_954_MOESM1_ESM.doc (9 mb)
Supplementary material 1 (DOC 9190 kb)

References

  1. 1.
    Ackerman JD, Sabat A, Zimmerman JK (1996) Seedling establishment in an epiphytic orchid: an experimental study of seed limitation. Oecologia 106:192–198CrossRefGoogle Scholar
  2. 2.
    Alvarez-Buylla ER, Chaos A, Pnero D, Garay A (1996) Demographic genetics of a pioneer tropical tree species: patch dynamics, seed dispersal and seed banks. Evolution 50:1155–1166CrossRefGoogle Scholar
  3. 3.
    Bond WJ (1994) Do mutualism matter? Assessing the impact of pollinator and disperser disruption on plant extinction. Philos Trans R Soc B Biol Sci 344:83–90CrossRefGoogle Scholar
  4. 4.
    Biesmeijer JC et al (2006) Parallel declines in pollinators and insect-pollinated plants in Britain and the Netherlands. Science 313:351–354CrossRefGoogle Scholar
  5. 5.
    Totland O (1993) Pollination in alpine Norway: flowering phenology, insect visitors, and visitation rates in two plant communities. Can J Bot 71:1072–1079CrossRefGoogle Scholar
  6. 6.
    Hermansen TD, Minchinton TE, Ayre DJ (2017) Habitat fragmentation leads to reduced pollinator visitation, fruit production and recruitment in urban mangrove forests. Oecologia 185:221–231CrossRefGoogle Scholar
  7. 7.
    Prakash V (1999) Indian Valerianaceae a monograph on medicinally important family, vol 1–2. Scientific Publishers, JodhpurGoogle Scholar
  8. 8.
    Jugran AK, Bhatt ID, Rawal RS, Nandi SK, Pande V (2013) Patterns of morphological and genetic diversity of Valeriana jatamansi Jones in different habitats and altitudinal range of West Himalaya, India. Flora 208:13–21CrossRefGoogle Scholar
  9. 9.
    Jugran A, Rawat S, Dauthal P, Mondal S, Bhatt ID, Rawal RS (2013) Association of ISSR markers with some biochemical traits of Valeriana jatamansi Jones. Ind Crops Prod 44:671–676CrossRefGoogle Scholar
  10. 10.
    Khajuria A, Verma S, Sharma P (2011) Stylar movement in Valeriana wallichii DC.—a contrivance for reproductive assurance and species survival. Curr Sci 100:1143–1144Google Scholar
  11. 11.
    Primack RB (1987) Relationships among flowers, fruits and seeds. Ann Rev Ecol Syst 18:409–430CrossRefGoogle Scholar
  12. 12.
    FAO (2011) Pollination services for sustainable agriculture: field manuals. Protocol to detect and assess pollination deficits in crops: a hand book for its useGoogle Scholar
  13. 13.
    Nawchoo AI, Rather MA, Ganie HA, Jan RT (2012) Need for unprecedented impetus for monitoring and conservation of Valeriana jatamansi, a valuable medicinal plant of Kashmir Himalaya. Agric Sci Res J 2:369–373Google Scholar
  14. 14.
    Towill LE, Mazu P (1975) Studies on the reduction of 2,3,5-triphenyltetrazolium chloride as a viability assay for plant tissue cultures. Can J Bot 53:1097–1102CrossRefGoogle Scholar
  15. 15.
    Jugran A, Bhatt ID, Rawat S, Giri L, Rawal RS, Dhar U (2011) Genetic diversity and differentiation in Hedychium spicatum Buch. Ham. ex. D. Don—a high value medicinal plant of Indian Himalaya. Biochem Genet 49:806–818CrossRefGoogle Scholar
  16. 16.
    Nybom H (2004) Comparison of different nuclear DNA markers for estimating genetic diversity in plants. Mol Ecol 13:1143–1155CrossRefGoogle Scholar
  17. 17.
    Jugran AK, Bhatt ID, Mondal S, Rawal RS, Nandi SK (2015) Genetic diversity of Valeriana jatamansi across habitat types and altitudinal range using nuclear and chloroplast microsatellite markers. Curr Sci 109:1273–1282CrossRefGoogle Scholar
  18. 18.
    Real LA (1994) Ecological genetics. Princeton University Press, PrincetonGoogle Scholar
  19. 19.
    Fenster CB, Armbruster WS, Wilson P, Dudash MR, Thomson JD (2004) Pollination syndromes and floral specialization. Ann Rev Ecol Evol Syst 35:375–403CrossRefGoogle Scholar
  20. 20.
    Wada N (1999) Factors affecting the seed-setting success of Dryas octopetala in front of Broggerbeen (Brogger Glacier) in the high Arctic, Ny-Alesund, Svalbard. Polar Res 18:261–268CrossRefGoogle Scholar
  21. 21.
    Kunin WE (1993) Sex and the single mustard: population density and pollinator behavior effects on seed-set. Ecology 74:2145–2160CrossRefGoogle Scholar
  22. 22.
    Blaauw BR, Isaacs R (2014) Larger patches of diverse floral resources increase insect pollinator density, diversity, and their pollination of native wildflowers. Basic Appl Ecol 15:701–711CrossRefGoogle Scholar
  23. 23.
    Friedman J, Barrett SCH (2011) The evolution of ovule number and flower size in wind-pollinated plants. Am Nat 177:246–257CrossRefGoogle Scholar
  24. 24.
    Stebbins GL (1957) Self-fertilization and population variability in higher plants. Am Nat 41:337–354CrossRefGoogle Scholar
  25. 25.
    Thompson JD (2003) Behavioural effects of pesticides in bees- their potential for use in risk assessment. Ecotoxicology 12:317–330CrossRefGoogle Scholar
  26. 26.
    Bauer AA, Clayton MK, Brunet J (2017) Floral traits influencing plant attractiveness to three bee species: consequences for plant reproductive success. Am J Bot 104:772–781CrossRefGoogle Scholar
  27. 27.
    Harder L (1990) Pollen removal by bumblebees and its implications for pollen dispersal. Ecology 71:1110–1125CrossRefGoogle Scholar
  28. 28.
    Larson BMH, Barrett SCH (2000) A comparative analysis of pollen limitation in flowering plants. Biol J Linn Soc 69:503–520CrossRefGoogle Scholar
  29. 29.
    Muchhala N (2003) Exploring the boundary between pollination syndromes: bats and hummingbirds as pollinators of Burmeistera cyclostigmata and B. tenuiflora (Campanulaceae). Oecologia 134:373–380CrossRefGoogle Scholar
  30. 30.
    Theurillant JP, Guisan A (2001) Potential impact of climate change on vegetation in the European Alps: a review. Clim Change 50:77–109CrossRefGoogle Scholar

Copyright information

© The National Academy of Sciences, India 2017

Authors and Affiliations

  • Arun K. Jugran
    • 1
    Email author
  • Ravindra K. Joshi
    • 2
  • Indra D. Bhatt
    • 2
  • Ranbeer S. Rawal
    • 2
  • Lok Man S. Palni
    • 3
  1. 1.G. B. Pant National Institute of Himalayan Environment and Sustainable DevelopmentSrinagarIndia
  2. 2.G. B. Pant National Institute of Himalayan Environment and Sustainable DevelopmentAlmoraIndia
  3. 3.Graphic Era UniversityDehradunIndia

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