Restoration of aboveground biomass after its defoliation by phytophages may depend on biotic relationships and resource availability. A 3-year full-factorial experiment was conducted on the influence of three defoliation regimes (control, 1 and 2 cuttings at soil level per season), soil enrichment with N and P and the removal of neighboring plants (reduced competition) on the number of shoots and above-ground biomass of 3 species of productive Geranium-Hedysarum meadows in Teberda National Park (Geranium gymnocaulon, Hedysarum caucasicum, Festuca brunnescens). It has been shown that defoliation sharply reduces the formation of generative shoots. In most cases, defoliation significantly reduced the number and above-ground biomass of plants after 3 years of experiment. The final yield of the nitrogen-fixing legume plant (Hedysarum caucasicum), as well as grass Festuca brunnescens, did not depend on the availability of soil resources. The number of generative shoots of Geranium gymnocaulon was slightly higher when NP was added to the soil, and the total number was slightly higher when neighboring plants were removed. In general, both the enrichment of the soil with mineral nutrition elements and the removal of neighboring plants did not have a significant effect on the restoration of above-ground biomass of a productive alpine meadow, in contrast to that for low-productive alpine heaths. The restoration of aboveground biomass in plants of the productive meadow was lower than in alpine lichen heath, which may be due to the limited growing season in the first case.
2024. T. 129. Vyp. 2.
2024. T. 129. Vyp. 2.
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Influence of competition and soil nutrients on plant regrowth ability in productive alpine meadow: factorial experiment
References
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Список литературы
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- Abaturov B.D., Dmitriev I.A., Zhargalsaikhan L., Omarov K.Z. Utilization of phytomass and deposition of excrement by ungulate mammals on steppe pastures of Eastern Mongolia. Izv. RAS. Biological series 2008. № 3. P. 350–359 (in Russ.).
- Adzhieva R.B., Onipchenko V.G. Reaction of plants of alpine snow beds and Geranium-Hedysarum meadows to different defoliation regimes // Byul. MOIP. Otd. biol. 2006. V. 111. N. 1. P. 24–36 (in Russ.).
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- Barthelemy H., Dorrepaal E., Olofsson J. Defoliation of a grass is mediated by the positive effect of dung deposition, moss removal and enhanced soil nutrient contents: results from a reindeer grazing simulation experiment // Oikos. 2019. Vol. 128. N 10. P. 1515-1524.
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- Briske D.D. Strategies of plant survival in grazed systems: a functional interpretation // Foraging strategies of grazing animals / Hodgson J., Illius A.W. Eds. Wallingford: CAB International, 1996. P. 37–67.
- Brys R., Shefferson R.P., Jacquemyn H. Impact of herbivory on flowering behaviour and life history tradeoffs in a polycarpic herb: a 10-year experiment // Oecologia. 2011. Vol. 166. N 2. P. 293–303.
- De Bello F., Leps J., Sebastia M.-T. Predictive value of plant traits to grazing along a climatic gradient in the Mediterranean // J. of Applied Ecology. 2005. Vol. 42. N 5. P. 824–833.
- del-Val E., Crawley M.J. Interspecific competition and tolerance to defoliation in four grassland species // Canadian J. of Botany. 2004. Vol. 82. N 7. P. 871–877.
- Eneev S.Kh. Yak etology in Kabardino-Balkariya // Trudy Kubanskogo SKhI. 1985. Vyp. 264. S. 50–54 (in Russ.).
- Erkenova M.M., Tekeev D.K., Semenova R.B., Akhmetzhanova A.A., Onipchenko V.G. Resource regulation of the regrow capacity of plants in alpine heaths: factorial experiment // Russian Journal of Ecology. 2020. Vol. 51. N 5. S. 406-416 (in Russ.).
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- Ferraro D.O., Oesterheld M. Effect of defoliation on grass growth. A quantitative review // Oikos. 2002. Vol. 98. N 1. P. 125–133.
- Ficken C.D., Wright J.P. Nitrogen uptake and biomass resprouting show contrasting relationships with resource acquisitive and conservative plant traits // J. Vegetation Science. 2019. Vol. 30. N 1. P. 65–74.
- Gough L., Shrestha K., Johnson D.R., Moon B. Longterm mammalian herbivory and nutrient addition alter lichen community structure in Alaskan dry heath tundra // Arctic, Antarctic, and Alpine Research. 2008. Vol. 40. N 1. P. 65–73.
- Green R.A., Detling J.A. Defoliation-induced enhancement of total aboveground nitrogen yield of grasses // Oikos. 2000. Vol. 91. N 2. P. 280–284.
- Hartnett D.C., Fay P.A. Plant populations: patterns and processes // Grassland dynamics / Knapp A.K., Briggs J.M., Hartnett D.C., Collins S.L. eds. New York, Oxford, 1998. P. 81–100.
- Körner C. Alpine plant life: functional plant ecology of high mountain ecosystems. 2-nd ed. Berlin e.a.: Springer, 2003. 349 p.
- Mueggler W.F. Response of Mountain grassland vegetation to clipping in southwestern Montana // Ecology 1967.Vol. 48. N 6. P. 946–949.
- Nakhutsrishvili G.Sh., Gamtsemlidze Z.G. Zhizn’ rastenii v ekstremal’nykh usloviyakh vysokogorii (na primere Tsentral’nogo Kavkaza). L., 1984. 123 s. (in Russ.).
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- Onipchenko V.G. Phytomass of the alpine communities in the North-western Caucasus // Byul. MOIP. Otd. biol. 1990. T. 95. № 6. S. 52–62 (in Russ.).
- Onipchenko V.G., Blinnikov M.S., Gerasimova M.A., Volkova E.V., Cornelissen J.H.C. Experimental comparison of competition and facilitation in alpine communities varying in productivity // J. Vegetation Science. 2009. Vol. 20. N 4. P. 718–727.
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- Onipchenko V.G., Dudova K.V., Akhmetzhanova A.A. et al. Which Plant Strategies Are Related to Dominanсе in Alpine Communities? // Журнал общей биологии. 2020. Т. 81. № 2. С. 37–46 (in Russ.).
- Onipchenko V.G., Ustinova Ya.A. Seasonal dynamics of alpine plant communities in Teberda Reserve (the north-west Caucasus) // Byul. MOIP. Otd. biol. 1993. Т. 98. Vyp. 6. P. 71–79 (in Russ.).
- Sardans J., Penuelas J., Roda F. The effects of nutrient availability and removal of competing vegetation on resprouter capacity and nutrient accumulation in the shrub Erica multiflora // Acta Oecologica. 2006. Vol. 29. N 2. P. 221–232.
- Schowalter T.D. Insect ecology. An ecosystem approach. 2-nd edit. Amsterdam, 2006. 572 p.
- Sokolov V.E., Tembotov A.K. Mlekopitayushchie: Kopytnye. M., 1993. 528 s. (in Russ.).
- Tekeev D.K., Onipchenko V.G. Response of snowless alpine plants on experimental defoliation // Ekologicheskii vestnik Severnogo Kavkaza. 2007. Т. 3. № 2. S. 5–13 (in Russ.).
- Tekeev D.K., Semenova R.B., Onipchenko V.G. Integral assessment of the regrow capacity of alpine plants // Moscow University Biological Sciences Bulletin. 2012. Т. 67. No. 1. S. 31–35 (in Russ.).
- Vesk P.A., Westoby M. Predicting plant species’ responses to grazing // J. Applied Ecology. 2001. Vol. 38. N 5. P. 897–909.
- Wedel E.R., Nippert J.P., Hartnett D.C. Fire and browsing interact to alter intra-clonal stem dynamics of an encroaching shrub in tallgrass prairie // Oecologia, 2021. Vol. 196. N 4. P. 1039–1048.
- Wyka T. Carbohydrate storage and use in an alpine population of the perennial herb, Oxytropis sericea // Oecologia, 1999. Vol. 120. N 2. P. 198–208.
- Zamora R., Hodar J.A., Gomes J.M. Plant-herbivore interaction: beyond a binary vision // Handbook of functional plant ecology / Pugnaire F.I., Valladares F. Eds. N.Y., Basel, 1999. P. 677–718.
- Zernov A.S., Alekseev Yu.E., Onipchenko V.G. The determinant of vascular plants of the Karachay-Cherkess Republic. M., 2015. 459 p. (in Russ.).