Precipitation mediates termite functional diversity and dominance in southern Africa

Authors

DOI:

https://doi.org/10.38201/btha.abc.v52.i1.3

Keywords:

termite, ecology, functional groups, southern Africa, diversity

Abstract

Background: Termites are important ecosystem engineers in the tropics and sub-tropics, so understanding their diversity, particularly their functional diversity, across biogeographical scales is important for understanding where they alter the
environment and deliver ecological services. Feeding groups combine phylogenetic
and dietary information about termites into ecologically significant functional categories.
Objectives: To characterise termite feeding group prevalence, distribution and diversity in southern Africa and assess the effect of precipitation on termite diversity and assemblage composition.
Method: Termite genus and species-level occurrence data were acquired from the South African Termite Database and classified into one of five feeding groups. We evaluated the prevalence of each feeding group and assessed species and feeding group richness and dominance. Linear regressions were performed to determine the relationship between 1) species richness and precipitation; and 2) feeding group richness and precipitation.
Results: We find that southern Africa 1) is dominated by FG-IIw (feeding group – II, wood feeding) termites; 2) is occupied by multiple feeding groups across the entirety of the rainfall gradient; and that precipitation 3) influences feeding group species diversity variably; and 4) causes notable shifts in termite community structure.
Conclusion: Our results indicate that termites likely make substantial contributions
to plant material decomposition across southern Africa and that while shifts in feeding group dominance are associated with rainfall gradients, the services unique to individual feeding groups are not isolated to certain regions, but rather
are widespread regardless of the amount of precipitation received.

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References

Aanen, D.K. & Eggleton, P., 2005, ‘Fungus-growing termites originated in African rain Forest’, Current biology, 15, 851–855. https://doi.org/10.1016/j.cub.2005.03.043.

Archibald S. & Hempson G.P., 2016, ‘Competing consumers: contrasting the patterns and impacts of fire and mammalian herbivory in Africa’, Philosophical Transactions B, 371. https://doi.org/10.1098/rstb.2015.0309.

Ashton, L.A., Griffiths, H.M., Parr, C.L., Evans, T.A., Didham, R.K., Hasan, F., Teh, Y.A., Tin, H.S., Vairappan, C.S. & Eggleton, P., 2019, ‘Termites mitigate the effects of drought in tropical rainforest’, Science, 363, 174–177. https://doi.org/10.1126/science.aau9565.

Bignell, D.E. & Eggleton, P., 2000, ‘Termites in ecosystems’, in T. Abe, D.E. Bignell, & M. Higashi (eds), Termites: evolution, sociality, symbioses, ecology, pp. 363–387, Springer Science & Business Media. https://doi.org/10.1007/978-94-017-3223-9_17.

Bourguignon, T., Lo, N., Cameron, S.L., Šobotník, J., Hayashi, Y., Shigenobu, S., Watanabe, D., Roisin, Y., Miura, T. & Evans, T.A., 2014, ‘The evolutionary history of termites as inferred from 66 mitochondrial genomes’, Molecular Biology and Evolution, 32, 406–421. https://doi.org/10.1093/molbev/msu308.

Buxton, R.D., 1981, ‘Termites and the turnover of dead wood in an arid tropical Environment’, Oecologia, 51, 379–384. https://doi.org/10.1007/BF00540909.

Coaton, W.G.H. & Sheasby J.L., 1972, ‘Preliminary report on a survey of the termites (Isoptera) of South West Africa’, Cimbebasia, 2, 1–129.

Dahlsjö, C.A., Parr, C.L., Malhi, Y., Rahman, H., Meir, P., Jones, D.T. & Eggleton, P., 2014, ‘First comparison of quantitative estimates of termite biomass and abundance reveals strong intercontinental differences’, Journal of Tropical Ecology, 143–152. https://doi.org/10.1017/S0266467413000898.

Davies, A.B., Eggleton, P., van Rensburg, B.J. & Parr, C.L., 2012, ‘The pyrodiversity–biodiversity hypothesis: a test with savanna termite assemblages’, Journal of Applied Ecology, 49, 422–430. https://doi.org/10.1111/j.1365-2664.2012.02107.x.

Davies, R.G., Eggleton, P., Jones, D.T., Gathorne-Hardy, F.J. & Hernández, L.M., 2003, ‘Evolution of termite functional diversity: analysis and synthesis of local ecological and regional influences on local species richness’, Journal of Biogeography, 30, 847–877. https://doi.org/10.1046/j.1365-2699.2003.00883.x.

Donovan, S.E., Eggleton, P. & Bignell, D.E., 2001, ‘Gut content analysis and a new feeding group classification of termites’, Ecological Entomology, 26, 356–366. https://doi.org/10.1046/j.1365-2311.2001.00342.x.

Eggleton, P.,1994, ‘Termites live in a pear-shaped world: a response to Platnick’, Journal of Natural History, 28, 1209–1212. https://doi.org/10.1080/00222939400770611.

ESRI. 2020. ArcGIS version 10.7.1. [Software].

Harris, I. & Jones, P.D., 2015, ‘University of East Anglia Climatic Research Unit CRU TS3.23: Climatic Research Unit (CRU) Time-Series (TS) Version 3.23 of high-resolution gridded data of month-by-month variation in climate (Jan. 1901–Dec. 2014)’, Centre for Environmental Data Analysis, 09 November 2015. https://doi.org/10.5285/4c7fdfa6-f176-4c58-acee-683d5e9d2ed5.

Ji, R. & Brune, A., 2005, ‘Digestion of peptidic residues in humic substances by an alkali-stable and humic-acid-tolerant proteolytic activity in the gut of soil-feeding termites’, Soil Biology and Biochemistry, 37, 1648–1655, https://doi.org/10.1016/j.soilbio.2005.01.026.

Jones, C.G., Lawton, J.H. & Shachak, M., 1994, ‘Organisms as ecosystem engineers’, in Ecosystem Management, pp. 130–147, Springer, New York, NY, https://doi.org/10.1007/978-1-4612-4018-1_14.

Jones, D.T. & Eggleton, P., 2011, ‘Global biogeography of termites: a compilation of sources’, in D.E. Bignell, Y. Roisin & N. Lo (eds.), Biology of Termites: a modern synthesis, pp. 477–498, Springer, Netherlands. https://doi.org/10.1007/978-90-481-3977-4_17.

Jouquet, P., Traoré, S., Choosai, C., Hartmann, C. & Bignell, D, 2011, ‘Influence of termites on ecosystem functioning. Ecosystem services provided by termites’, European Journal of Soil Biology, 47, 215–222. https://doi.org/10.1016/j.ejsobi.2011.05.005.

Korb, J., 2003, ‘Thermoregulation and ventilation of termite mounds’, Naturwissenschaften, 90, 212–219. https://doi.org/10.1007/s00114-002-0401-4.

Lee, K.E. & Wood, T.G., 1971, Termites and Soils, Academic Press, London.

Meredith, C.S., Trebitz, A.S. & Hoffman, J.C., 2019, ‘Resolving taxonomic ambiguities: effects on rarity, projected density, and indices in macroinvertebrate datasets’, Ecological Indicators, 98, 137–148. https://doi.org/10.1016/j.ecolind.2018.10.047.

Mitchell, B.L, 1980, ‘Report on a survey of the termites of Zimbabwe’, Occasional Papers of the National Museums and Monuments: Natural Sciences, 6, 187–323.

Olson, D.M., Dinerstein, E., Wikramanayake, E.D., Burgess, N.D., Powell, G.V., Underwood, E.C., J.A., D’amico, I., Itoua, H.E., Strand, J.C., Morrison, C.J. Loucks, T.F., Alnutt, T.H., Ricketts, Y., Kura, J.F., Lamoreux, W.W., Wettengel, P. Hedao & Kassem, K.R., 2001, ‘Terrestrial ecoregions of the world: a new map of life on Earth’, BioScience, 51, 933–938. https://doi.org/10.1641/0006-3568(2001)051[0933:-TEOTWA]2.0.CO;2.

R Core Team. 2020. R. version 4.03. [Software].

Sileshi, G.W., Arshad, M.A., Konaté, S. & Nkunika, P.O.Y., 2010, ‘Termite-induced heterogeneity in African savanna vegetation: mechanisms and patterns’, Journal of Vegetation Science, 21, 923–937. https://doi.org/10.1111/j.1654-1103.2010.01197.x.

Turner, J.S., Marais, E., Vinte, M., Mudengi, A. & Park, W., 2006, ‘Termites, water and soils’, Agricola, 16, 40–45.

Uys, V.M., 2002, A guide to the termite genera of southern Africa, Plant Protection Research Institute Handbook No. 15, Agricultural Research Council, Pretoria.

Vohland, K. & Deckert, J., 2005, ‘Termites (Isoptera) along a north–south transect in Namibia and South Africa’, Entomologische Zeitschrift, 115, 109–115.

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Published

2022-03-16

How to Cite

Lind, B. M., Uys, V. M. ., Eggleton, P. ., & Hanan, N. (2022). Precipitation mediates termite functional diversity and dominance in southern Africa. Bothalia, African Biodiversity & Conservation, 52(1). https://doi.org/10.38201/btha.abc.v52.i1.3

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Section

Original research, Reviews, Strategies, Case studies