The Importance of Poneromorph Ants for Seed Dispersal in Altered Environments


  • Fabio Souto Almeida UFRRJ
  • Antonio José Mayhe-Nunes UFRRJ
  • Jarbas M Queiroz Departamento de Ciências Ambientais, Instituto de Florestas, UFRRJ.



biodiversity, communities, diaspores, myrmecochory, human disturbances


Changes in species composition and an increase in the probability of local or regional extinctions alone are considered alarming consequences of human disturbances. However, these changes bring other damages that have passed unnoticed by scientists, such as the loss of ecological interactions. In the present study, we assessed fragments of secondary forest and pastures focusing on two aspects of the seed dispersal process: removal rate and dispersal distance. We collected data in forest fragments named Forest 1 (6 ha), Forest 2 (36 ha), and Forest 3 (780 ha), and in a pasture in the municipality of Vassouras, Rio de Janeiro, southeastern Brazil. In each site, we established 40 observation stations containing six seeds of Carica papaya L. (papaya) and monitored seed removal for 2 h at each station. Seventeen ant species removed a total of 316 seeds (32.92% of the seeds). The species that removed the highest number of seeds was Pachycondyla striata Fr. Smith, followed by Odontomachus chelifer (Latreille). The seed removal rate was significantly higher (P < 0.05, Tukey test) in the forest fragment where larger species were more frequent. The average removal distance was significantly longer in two out of three forest fragments (P < 0.05, Tukey test). Larger ants removed more seeds and for longer distances. Hence, seed dispersal was increased by the presence of large-bodied ant species and their high frequency in forest fragments seed dispersal.


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Antonialli JR., W.F. & Giannotti, E. (2001). Nest architecture and population dynamics of the ponerine ant Ectatomma edentatum (Hymenoptera, Formicidae). Sociobiology, 38: 475-486.

Bottcher, C. (2006). Interações entre Pachycondyla striata e Odontomachus chelifer (Formicidae, Ponerinae) e diásporos em três fisionomias florestais da Mata Atlântica. 2006. 89p. Dissertação (Mestrado em Ecologia). Universidade Estadual de Campinas, Campinas, SP.

Castilho, G.A.; Noll, F.B.; Silva, E.R. & Santos, E.F. (2011). Diversidade de Formicidae (Hymenoptera) em um fragmento de Floresta Estacional Semidecídua no Noroeste do estado de São Paulo, Brasil. Rev. Bras. Biociênc., 9: 224-230.

Cordeiro, N.J.; Ndangalasi, H.J.; Mcentee, J.P. & Howe, H.F. (2009). Disperser limitation and recruitment of an endemic African tree in a fragmented landscape. Ecology, 90: 1030-1041. doi: 10.1890/07-1208.1. DOI:

Costa, U.A.S.; Oliveira, M.; Tabarelli, M. & Leal, I.R. 2007. Dispersão de sementes por formigas em remanescentes de floresta atlântica nordestina. Rev. Bras. Biociênc., 5: 231-233.

Dan, M.L.; Braga, J.M.A. & Nascimento, M.T. (2010). Estrutura da comunidade arbórea de fragmentos de floresta estacional semidecidual na bacia hidrográfica do rio São Domingos, Rio de Janeiro, Brasil. Rodriguesia, 61: 749-766. DOI:

Dean, W. (2002). A Ferro e Fogo: A História e a Devastação da Mata Atlântica Brasileira. São Paulo: Cia das Letras, 484p.

EMBRAPA. (2011). Embrapa Monitoramento por Satélite: banco de dados climáticos do Brasil. Disponível em: < php?UF=&COD= 208>. Acessed date: June 24th. 2011.

Francelino, M.R.; Rezende, E. M. C. & Silva, L.D.B. (2012). Proposta de metodologia para zoneamento ambiental de plantio de eucalipto. Cerne, 18: 275-283. doi: 10.1590/S0104-77602012000200012. DOI:

Gibb, H. & Hochuli, D.F. (2002). Habitat fragmentation in an urban environment: large and small fragments support different arthropod assemblages. Biol. Conserv., 106: 91-100. doi:10.1016/s0006-3207(01)00232-4. DOI:

Gomez, C. & Espadaler, X. (1998). Seed dispersal curve of a Mediterranean myrmecochore: influence of seed size and distance to nests. Ecol. Res., 13: 347-354. doi: 10.1046/j.1440-1703.1998.00274.x DOI:

Guimarães Jr., P.R. & Cogni, R. (2002). Seed cleaning of Cupania vernalis (Sapindaceae) by ants: edge effect in a highland forest in south-east Brazil. J. Trop. Ecol., 18: 303-307. doi: 10.1017/S0266467402002213 DOI:

Hölldobler, B. & Wilson, E.O. (1990). The ants. Cambridge: Belknap Press of Harvard University Press, 732p. DOI:

Howe, H.F. & Smallwood, J. (1982). Ecology of seed dispersal. Annu. Rev. Ecol. Syst., 13: 201-228. doi: 10.1146/ DOI:

Janzen, D.H. (1970). Herbivores and number of tree species in tropical forests. Am. Nat., 104: 501-528. DOI:

Jones, C.G.; Lawton, J.H. & Shachak, M. (1994). Organisms as ecosystem engineers. Oikos, 69: 373-386. DOI:

Kaspari, M. & Weiser, M.D. (1999). The size-grain hypothesis and interspecific scaling in ants. Funct. Ecol., 13: 530-538. doi:10.1046/j.1365-2435.1999.00343.x DOI:

Leal, I.R.; Wirth, R. & Tabarelli, M. (2007). Seed dispersal by ants in the semi-arid Caatinga of North-east Brazil. Ann. of Botany, 99: 885-894. doi: 10.1093/aob/mcm017 DOI:

Lobo, D.; Tabarelli, M. & Leal, I.R. (2011). Relocation of Croton sonderianus (Euphorbiaceae) seeds by Pheidole fallax Mayr (Formicidae): a case of post-dispersal seed protection by ants? Neotrop. Entomol., 40: 440-444. doi: 10.1590/S1519-566X2011000400005 DOI:

MMA – Ministério do Meio Ambiente. Mapas de cobertura vegetal dos biomas brasileiros. (2007). Disponível em: /UserFiles/ file/mapas_ cobertura_vegetal_biomas.pdf>. Acessed date: November 20th, 2011.

Ness, J.H.; Bronstein, J.L.; Andersen, A.N. & Holland, J.N. (2004). Ant body size predicts dispersal distance of ant-adapted seeds: implications of small ant invasions. Ecology, 85: 1244-1250. doi:10.1890/03-0364 DOI:

Passos, L. & Oliveira, P.S. (2002). Ants affect the distribution and performance of Clusia criuva seedlings, a primarily bird-dispersed rain forest tree. J. Ecol., 90: 517–528. doi: 10.1046/j.1365-2745.2002.00687.x. DOI:

Passos, L. & Oliveira, P.S. (2003). Interactions between ants, fruits and seeds in a resting forest in south-eastern Brazil. J. Trop. Ecol., 19: 261-270. doi:10.1017/S0266467403003298 DOI:

Passos, L. & Oliveira, P.S. (2004). Interactions between ants and fruits of Guapira opposita (Nyctaginaceae) in a Brazilian sand plain rain forest: ant effects on seeds and seedling. Oecologia, 139: 376-382. doi: 10.1007/s00442-004-1531-5. DOI:

Pizo, M.A. & Oliveira, P.S. (1998). Interaction between ants and seeds of a nonmyrmecochorous neotropical tree, Cabralea canjerana (Meliaceae), in the Atlantic forest of southeast Brazil. Am. J. Botany, 85: 669-674. DOI:

Pizo, M.A. & Oliveira, P.S. (1999). Removal of seeds from vertebrate faeces by ants: effects of seed species and deposition site. Can. J. Zool., 77: 1595-1602. doi:10.1139/cjz-77-10-1595. DOI:

Pizo, M.A. & Oliveira, P.S. (2001). Size and lipid content of nonmyrmecochorous diaspores: effects on the interaction with litter-foraging ants in the Atlantic rain forest of Brazil. Plant Ecol., 157: 37-52. doi: 10.1023/A:1013735305100 DOI:

Pizo, M.A.; Guimarães JR., P.R. & Oliveira, P.S. (2005). Seed removal by ants from faeces produced by different vertebrate species. Ecoscience, 12: 136-140. doi:10.2980/i1195-6860-12-1-136.1. DOI:

Puntilla, P.; Haila, Y.; Niemela, J. & Pajunen, T. (1994). Ant communities in fragments of old-growth Taiga and managed surroundings. Ann. Entomol. Fennici, 31: 131-144.

Ribeiro, M.C.; Metzger, J.P.; Martensen, A.C.; Ponzoni, F.J. & Hirota, M.M. (2009).The Brazilian Atlantic Forest: how much is left, and how is the remaining forest distributed? Implications for conservation. Biol. Conserv., 142: 1141-1153. doi:10.1016/j.biocon.2009.02.021 DOI:

Santos, M.S.; Louzada, J.N.C.; Dias, N.; Zanetti, R.; Delabie, J.H.C. & Nascimento, I.C. (2006). Riqueza de formigas (Hymenoptera, Formicidae) da serapilheira em fragmentos de floresta semidecídua da Mata Atlântica na região do Alto do Rio Grande, MG, Brasil. Iheringia, Série Zoologia, 96: 95-101. doi:10.1590/S0073-47212006000100017 DOI:

Schoereder, J.H.; Sobrinho, T.G.; Ribas, C.R. & Campos, R.B.F. (2004). Colonization and extinction of ant communities in a fragmented landscape. Austral Ecol., 29: 391-398. doi: 10.1111/j.1442-9993.2004.01378.x DOI:

Schutte, M.S.; Queiroz, J.M.; Mayhe-Nunes, A.J. & Pereira, M.P.S. (2007). Inventário estruturado de formigas (Hymenoptera, Formicidae) em floresta ombrófila de encosta na ilha da Marambaia, RJ. Iheringia, Série Zoologia, 97: 103-110. doi:10.1590/S0073-47212007000100015 DOI:

Silva-Melo, A. (2008). Modelo arquitetônico de ninhos, biologia e divisão de trabalho de Pachycondyla striata Fr. Smith, 1858 (Hymenoptera: Formicidae: Ponerinae). 2008. 114p. Dissertação (Mestrado em Ciências Biológicas). Universidade Estadual Paulista, Rio Claro, SP.

Tokuhisa, D.; Dias, D.C.F.S.; Alvarenga, E.M.; Dias, L.A.S. & Marin, S.L.D. (2007). Tratamentos para superação da dormência em sementes de mamão. Rev. Bras. Sem., 29: 131-139. doi: 10.1590/S0101-31222007000100018 DOI:

Zar, J.H. (1999). Biostatistical analysis. 4ed. New Jersey: Prentice Hall.

Zelikova, T.J. & Breed, M.D. (2008). Effects of habitat disturbance on ant community composition and seed dispersal by ants in a tropical dry forest in Costa Rica. J. Trop. Ecol., 24: 309-316. doi:10.1017/S0266467408004999 DOI:




How to Cite

Almeida, F. S., Mayhe-Nunes, A. J., & Queiroz, J. M. (2013). The Importance of Poneromorph Ants for Seed Dispersal in Altered Environments. Sociobiology, 60(3), 229–235.



Research Article - Ants

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