Microhabitat Characteristics That Regulate Ant Richness Patterns: The Importance of Leaf Litter for Epigaeic Ants


  • Antonio Cesar Medeiros de Queiroz Universidade Federal de Lavras
  • Carla Rodrigues Ribas Universidade Federal de Lavras
  • Filipe Machado França Universidade Federal de Lavras




Environmental heterogeneity, leaf litter, model selection, AICc, cloud forest


We assessed the effect of conditions and resources on the species richness of epigaeic ants in a cloud forest of the Ibitipoca State Park, Brazil. We hypothesized that the characteristics that are best related with the epigaeic microhabitat affects ant richness more closely than other characteristics. At each sampling site (36 in total) we set up an epigaeic pitfall to capture ants and measured the following environmental variables (conditions and resources): tree density, tree height, circumference at breast height, density of the herbaceous and shrubby vegetation, weight and heterogeneity of the leaf litter, and canopy cover. We built general linear models and used a function that classifies alternative models according to the second-order Akaike information criterion (AICc), in order to assess which environmental variables affect ant species richness. We collected 37 ant species and the models that better explained the variations in ant richness were: (1) null model; (2) heterogeneity of the leaf litter; and (3) weight of the leaf litter. These two environmental variables are positively related to ant richness. It is possible that epigaeic ants are influenced by the high quantity and quality of food and nesting sites provided by a heterogeneous and abundant leaf litter. Relationships between species richness and environmental characteristics should consider different predictor variables related to the microhabitat, since each microhabitat may have a specific pattern and predictor variable. Thus, the understanding of the effects of the microhabitat variables on species richness could help predicting the consequences of anthropogenic impacts


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Author Biographies

Antonio Cesar Medeiros de Queiroz, Universidade Federal de Lavras

Departamento de Biologia, Setor de Ecologia e Conservação, Laboratório de Ecologia de Formigas.

Carla Rodrigues Ribas, Universidade Federal de Lavras

Departamento de Biologia, Setor de Ecologia e Conservação, Laboratório de Ecologia de Formigas.

Filipe Machado França, Universidade Federal de Lavras

Departamento de Biologia, Setor de Ecologia e Conservação, Laboratório de Ecologia e Conservação de Invertebrados.


Aragona, M. & Setz, E.Z.F. (2001). Diet of the maned wolf, Chrysocyon brachyurus (Mammalia: Canidae), during wet and dry seasons at Ibitipoca State Park, Brazil. Journal of Zoology, 254, 131-136. doi: 10.1017/S0952836901000620. DOI: https://doi.org/10.1017/S0952836901000620

Bolton, B. (1994). Identification guide to the ant genera of the World. Cambridge: Harvard University Press.

Burnham, K.P. & Anderson, D. (2002). Model Selection and Multimodel Inference. A practical information-theoretic approach. New York: Springer.

Campos, R.B.F., Schoereder, J.H. & Sperber, C.F. (2007). Small-scale patch dynamics after disturbance in litter ant communities. Basic and Applied Ecology, 8, 36-43. doi: 10.1016/j.baae.2006.03.010. DOI: https://doi.org/10.1016/j.baae.2006.03.010

Campos, R.I., Vasconcelos, H.L., Ribeiro, S.P., Neves, F.S. & Soares, J.P. (2006). Relationship between tree size and insect assemblages associated with Anadenanthera macrocarpa. Ecography, 29, 442-450. doi: 10.1111/j.2006.0906-7590.04520.x. DOI: https://doi.org/10.1111/j.2006.0906-7590.04520.x

Carvalho, L.M.T., Fontes, M.A.L. & Oliveira-Filho, A.T. (2000). Tree species distribution in canopy gaps and mature forest in an area of cloud forest of the Ibitipoca Range, south-eastern Brazil. Plant Ecology 149, 9–22. doi: 10.1023/A:1009836810707. DOI: https://doi.org/10.1023/A:1009836810707

Corrêa, M.M., Fernandes, W.D. & Leal, I.R. (2006). Diversidade de formigas epigéicas (Hymenoptera: Formicidae) em capões do Pantanal Sul Matogrossense: Relações entre riqueza de espécies e complexidade estrutural da área. Neotropical Entomology, 35, 724-730. DOI: https://doi.org/10.1590/S1519-566X2006000600002

Costa, F.V., Neves, F.S. Silva, J.O. & Fagundes, M. (2011). Relationship between plant development, tannin concentration and insects associated with Copaifera langsdorffii (Fabaceae). Arthropod-Plant Interactions, 5, 9–18. doi: 10.1007/s11829-010-9111-6. DOI: https://doi.org/10.1007/s11829-010-9111-6

Engelbrecht, B.M.J. & Herz, H.M. (2001). Evaluation of different methods to estimate understorey light conditions in tropical forests. Journal of Tropical Ecology, 17, 207-224. doi: 10.1017/S0266467401001146. DOI: https://doi.org/10.1017/S0266467401001146

Fisher, B.L. (2010). Biogeography. In: L. Lach, C.L. Parr & K.L. Abbott(Eds.), Ant Ecology (pp. 18-31). Oxford : Oxford University Press.

Frazer, GW; Canham, CD; Lertzman, KP. (1999). Gap Light Analyzer (GLA): Imaging software to extract canopy structure and gap light transmission indices from truecolour fisheye photographs, users manual and program documentation. New York: Simon Fraser University, Burnaby, British Columbia, and the Institute of Ecosystem Studies, Millbrook.

Gardner, T.A., Barlow, J., Chazdon, R., Ewers, R.M., Harvey, C.A., Peres, C.A. & Sodhi, N.S. (2009). Prospects for tropical forest biodiversity in a human-modified world. Ecology Letters, 12, 561–582. doi: 10.1111/j.1461-0248.2009.01294.x. DOI: https://doi.org/10.1111/j.1461-0248.2009.01294.x

Gillespie, R.G. & Roderick, G.K. (2002). Arthropods on Islands: Colonization, Speciation, and Conservation. Annual Review of Entomology. 47, 595–632. doi: 10.1146/annurev.ento.47.091201.145244. DOI: https://doi.org/10.1146/annurev.ento.47.091201.145244

Gomes, J.P., Iannuzzi, L. &Leal, I.R. (2010). Resposta da comunidade de formigas aos atributos dos fragmentos e da vegetação em uma paisagem da Floresta Atlântica Nordestina. Neotropical Entomology, 39, 898-905. DOI: https://doi.org/10.1590/S1519-566X2010000600008

Gunawardene, N.R., Majer, J.D. &Edirisinghe, J. P. (2012). Correlates of ant (Hymenoptera: Formicidae) and tree species diversity in Sri Lanka. Myrmecological News, 17. 81-90.

Hölldobler, B. & Wilson, E. O. (1990). The ants. Cambridge: Harvard University Press. DOI: https://doi.org/10.1007/978-3-662-10306-7

Kaspari, M. & Weiser, M.D. (2000). Ant activity along moisture gradients in a Neotropical Forest. Biotropica, 32, 703-711. doi: 10.1111/j.1744-7429.2000.tb00518.x. DOI: https://doi.org/10.1646/0006-3606(2000)032[0703:AAAMGI]2.0.CO;2

Lassau, S.A. & Hochuli, D.F. (2004). Effects of habitat complexity on ant assemblages. Ecography, 27, 157–64. doi: 10.1111/j.0906-7590.2004.03675.x. DOI: https://doi.org/10.1111/j.0906-7590.2004.03675.x

Leal, I.R. Ferreira, S.O. & Freitas, A.V.L. (1993). Diversidade de formigas de solo em um gradiente sucessional de Mata Atlântica, ES, Brasil. Biotemas, 6, 42-53.

Leal, I.R., Bieber, A.G.D., Tabarelli, M. & Andersen, A.N. (2010). Biodiversity surrogacy: indicator taxa as predictors of total species richness in Brazilian Atlantic forest and Caatinga. Biodiversity and Conservation, 19, 3347-3360. doi: 10.1007/s10531-010-9896-8. DOI: https://doi.org/10.1007/s10531-010-9896-8

Longino, J. T. & Nadkarni, N.M. (1990). A comparison of ground and canopy leaf litter ants (Hymenoptera: Formicidae) in a Neotropical Montane Forest. Psyche, 97, 81-93. DOI: https://doi.org/10.1155/1990/36505

Loope, L.L., Giambelluca, T.W. (1998). Vulnerability of island Tropical Montane Cloud Forests to climate change, with special reference to East Maui, Hawaii. Climatic Change, 39, 503–517. doi: 10.1023/A:1005372118420. DOI: https://doi.org/10.1007/978-94-017-2730-3_18

Merlin, M.D. & Juvik J.O. (1993). Montane Cloud Forest in the Tropical Pacific: Some aspects of their floristics, biogeography, ecology and conservation. In L.S. Hamilton, J.O. Juvik & F.N. Scatena (Eds.), Tropical Montane Cloud Forests,Honolulu, Hawaii: Proceed of an intern. symp., East West Center Program on Environment. Honolulu.

Mezger, D. & Pfeiffer, M. (2011). Partitioning the impact of abiotic factors and spatial patterns on species richness and community structure of ground ant assemblages in four Bornean rainforests. Ecography ,34, 39-48. doi: 10.1111/j.1600-0587.2010.06538.x. DOI: https://doi.org/10.1111/j.1600-0587.2010.06538.x

Muscardi, D.C, Almeida, S.S.P., Schoereder, J.H., Marques, T. Sarcinelli, T.S. & Corrêa, A. (2008). Response of litter ants (Hymenoptera: Formicidae) to habitat heterogeneity and local resource availability in native and exotic forests. Sociobiology, 52, 655-666.

Myers, N., Mittermeier, R.A., Mittermeier, C.G., Fonseca, G.A.B. & Kent, J. (2000). Biodiversity hotspots for conservation priorities. Nature, 403, 853-858. doi: 10.1038/35002501. DOI: https://doi.org/10.1038/35002501

Nageswara-Rao, M., Soneji, J.R. & Sudarshana, P. (2012). Structure, diversity, threats and conservation of Tropical Forests. In P. Sudarshana, M. Nageswara-Rao & J. R. Soneji (Eds.), Tropical Forests. Intech. doi: 10.5772/39286. Available from: http://www.intechopen.com/books/tropical-forests/structure-diversity-threats-and-conservation-of-tropical-forests DOI: https://doi.org/10.5772/39286

Nobis, M. (2005). SideLook 1.1 - Imaging software for the analysis of vegetation structure with true-colour photographs, http://www.appleco.ch

Oliveira-Filho, A.T. & Fontes, M.A.L. (2000). Patterns of floristic differentiation among Atlantic Forests in Southeastern Brazil and the influence of climate. Biotropica, 32, 793-810. doi: 10.1111/j.1744-7429.2000.tb00619.x. DOI: https://doi.org/10.1111/j.1744-7429.2000.tb00619.x

Palacio, E.E. & Fernández, F. (2003). Claves para las subfamilias y géneros. In: F. Fernández (Ed.), Introducción a las hormigas de la region Neotropical (pp. 233-260). Bogotá: Instituto de Investigación de Recursos Biológicos Alexander von Humbolt.

Paolucci, L.N., Solar, R.R.C. & Schoereder, J.H. (2010). Litter and associated ant fauna recovery dynamics after a complete clearance. Sociobiology, 55,133-144.

Patrick, M., Fowler, D., Dunn, R.R. & Sanders, N.J. (2012). Effects of treefall gap disturbances on ant assemblages in a Tropical Montane Cloud Forest. Biotropica, 4, 472–478. doi: 10.1111/j.1744-7429.2012.00855.x. DOI: https://doi.org/10.1111/j.1744-7429.2012.00855.x

R Development Core Team.. (2011). R: A language and environment for statistica computing. R Foundation for Statistical Computing, Vienna, Austria, URL http://www.rproject.org.

Ribas, C.R. & Schoereder, J.H. (2007). Ant communities, environmental. characteristics and their implications for conservation in the Brazilian Pantanal. Biodiversity and Conservation, 16, 1511-1520. doi: 10.1007/s10531-006-9041-x. DOI: https://doi.org/10.1007/s10531-006-9041-x

Ribas, C.R., Schoereder, J.H., Pie, M. & Soares, S.M. (2003). Tree heterogeneity, resource availability, and larger scale processes regulating arboreal ant species richness. Austral Ecology, 28, 305-314. doi: 10.1046/j.1442-9993.2003.01290.x. DOI: https://doi.org/10.1046/j.1442-9993.2003.01290.x

Ribas, C.R., Campos, R.B.F., Schmidt, F.A. & Solar, R.R.C. (2012). Ants as indicators in Brazil: A review with suggestions to improve the use of ants in environmental monitoring programs. Psyche, Article ID 636749. doi: 10.1155/2012/636749. DOI: https://doi.org/10.1155/2012/636749

Ricklefs, R.E. (2004). A comprehensive framework for global patterns in biodiversity. Ecology Letters, 7, 1–15. doi: 10.1046/j.1461-0248.2003.00554.x. DOI: https://doi.org/10.1046/j.1461-0248.2003.00554.x

Sayer, E.J., Sutcliffe, L.M.E, Ross, R.I.C. & Tanner,E.V.J. (2010). Arthropod abundance and diversity in a Lowland Tropical Forest floor in Panama: The role of habitat space vs. nutrient concentrations. Biotropica, 42, 194–200. doi: 10.1111/j.1744-7429.2009.00576.x. DOI: https://doi.org/10.1111/j.1744-7429.2009.00576.x

Schonberg, L.A., Longino, J.T., Nadkarni, N.M., Yanoviak, S.P. & Gering, J.C. (2004). Arboreal ant species richness in primary forest, secondary forest, and pasture habitats of a Tropical Montane Landscape. Biotropica, 36, 402–409. doi: 10.1646/03134. DOI: https://doi.org/10.1111/j.1744-7429.2004.tb00333.x

Soares, S.M. & Schoereder, J.H. (2001). Ant-nest distribution in a remnant of Tropical Rainforest in outheastern Brazil. Insects Sociaux, 48, 280-286. doi: 10.1007/PL00001778. DOI: https://doi.org/10.1007/PL00001778

Wilson, E. O. (1990). Success and dominance in ecosystems. Orlendorf/Luhe: Ecology Institute.

Yanoviak, S.P. & Kaspari, M. (2000). Community structure and the habitat templet: ants in the Tropical Forest canopy and litter. Oikos, 89, 259–266. doi: 10.1034/j.1600-0706.2000.890206.x. DOI: https://doi.org/10.1034/j.1600-0706.2000.890206.x




How to Cite

Queiroz, A. C. M. de, Ribas, C. R., & França, F. M. (2013). Microhabitat Characteristics That Regulate Ant Richness Patterns: The Importance of Leaf Litter for Epigaeic Ants. Sociobiology, 60(4), 367–373. https://doi.org/10.13102/sociobiology.v60i4.367-373



Research Article - Ants

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