Climatic conditions affect the richness of ants resulting in number variation throughout the year. The ants present in the Neotropical system Acacia-Pseudomyrmex have been previously studied considering only one sampling season. In contrast, in this study we analyze the richness in two ant-acacia systems during the rainy and dry seasons. The study was carried out on a plot located in the state of Oaxaca, Mexico where 14 ant species, 3 mutualistic and 11 non-mutualistic were found, of which 2 represent new records for the state. Ant species number differed between ant-acacia species and between seasons. The highest richness was recorded in Acacia hindsii in both rainy and dry seasons, corresponding with a low-reward host. During the dry season, A. hindsii represents a highly valuable resource. This study shows that the neotropical system is much more dynamic than it has been previously considered and offers a valuable opportunity for subsequent ecological studies for a better understanding of this complex system.
Hölldobler, B. and Wilson, E.O. (1990) The Ants. Harvard University Press, Cambridge.
Janzen, D.H. (1974) Swollen-Thorn Acacias of Central America. Smithsonian Contributions to Botany, No. 13, 1-131. https://doi.org/10.5962/bhl.title.123341
Ward, P.S. (1993) Systematic Studies on Pseudomyrmex Acacia-Ants (Hymenoptera: Formicidae: Pseudomyrmecinae). Journal of Hymenoptera Research, 2, 117-168.
Ward, P.S. (2017) A Review of the Pseudomyrmex ferrugineus and Pseudomyrmex goeldii Species Groups: Acacia-Ants and Relatives (Hymenoptera: Formicidae). Zootaxa, 4227, 524-542. https://doi.org/10.11646/zootaxa.4227.4.3
Heil, M., Baumann, B., Kruger, R. and Linsenmair, K.E. (2004) Main Nutrient Compounds in Food Bodies of Mexican Acacia Ant-Plants. Chemoecology, 14, 45-52. https://doi.org/10.1007/s00049-003-0257-x
Kautz, S., Lumbsch, H.T., Ward, P.S. and Heil, M. (2009) How to Prevent Cheating: A Digestive Specialization Ties Mutualistic Plant-Ants to Their Ant-Plant Partners. Evolution, 63, 839-853. https://doi.org/10.1111/j.1558-5646.2008.00594.x
Ward, P.S. and Branstetter, M.G. (2017) The Acacia Ants Revisited: Convergent Evolution and Biogeographic Context in an Iconic Ant/Plant Mutualism. Proceedings of the Royal Society B, 284, Article ID: 20162569. https://doi.org/10.1098/rspb.2016.2569
Janzen, D.H. (1975) Pseudomyrmex nigropilosa: A Parasite of a Mutualism. Science, 188, 936-937. https://doi.org/10.1126/science.188.4191.936
Clement, L.W., Köppen, S.C., Brand, W.A. and Heil, M. (2008) Strategies of a Parasite of the Ant-Acacia Mutualism. Behavioral Ecology and Sociobiology, 26, 953-962. https://doi.org/10.1007/s00265-007-0520-1
Raine, N.E., Gammans, N., Macfadyen, I.J., Scrivner, G.K. and Stone, G.N. (2004) Guards and Thieves; Antagonistic Interactions between Two Ant Species Coexisting on the Same Ant-Plant. Ecological Entomology, 29, 345-352. https://doi.org/10.1111/j.0307-6946.2004.00608.x
Castaño-Meneses, G., Gómez-Acevedo, S.L. and Eguiarte-Fruns, L.E. (2008) Hormigas (Hymenoptera: Formicidae) asociadas a acacias mirmecófilas (Leguminosae: Mimosoideae) en México y Centroamérica. In: Estrada, E.G., Equihua, A., Padilla, J.R. and Mendoza, A., Eds., Entomología Mexicana, Vol. 7, XLIII, Sociedad Mexicana de Entomología, Texcoco, 105-110.
Heil, M., Orona-Tamayo, D., Eilmus, S., Kautz, S. and González-Teuber, M. (2010) Chemical Communication and Coevolution in an Ant-Plant Mutualism. Chemoecology, 20, 62-74. https://doi.org/10.1007/s00049-009-0036-4
Heil, M., Barajas-Barron, A., Orona-Tamayo, D., Wielsch, N. and Svatos, A. (2014) Partner Manipulation Stabilises a Horizontally Transmitted Mutualism. Ecology Letters, 17, 185-192. https://doi.org/10.1111/ele.12215
Gómez-Acevedo, S., Trujillo, C.O., Castaño-Meneses, G., Martínez, T.J., Callejas-Chavero, A., Cueva del Castillo, M.R. and Tapia-Pastrana, F. (2015) Mirmecofauna asociada a acacias mirmecófilas en Veracruz y Oaxaca, México. In: Castaño-Meneses, G., Vásquez-Bolaños, M., Navarrete-Heredia, J.L., Quiroz-Rocha, G.A. and Alcalá-Martínez, I., Eds., Avances de Formícidae de México, Universidad Nacional Autónoma de México, and CUCBA, Universidad de Guadalajara, Mexico 171-177.
Wheeler, W.M. (1913) Observations on the Central America Acacia Ants. 2nd International Congress of Entomology, Oxford, August 1912, Volume II, 109-139.
Ward, P.S. (1989) Systematics Studies on Pseudomyrmecinae Ants: Revision of the Pseudomyrmex oculatus and P. subtilissimus Species Groups, with Taxonomic Comments on Other Species. Quaestiones Entomologicae, 25, 393-468.
Pereira, L.P.C., Almeida, F.S., Vargas, A.B., Araújo, M.S., Mayhé-Nunes, A.J. and Queiroz, J.M. (2016) Seasonal Analysis of Taxonomic and Functional Diversity of Poneromorph Ant Assemblages in the Amazon Forest. Sociobiology, 63, 941-949. https://doi.org/10.13102/sociobiology.v63i3.1053
Sousa-Souto, L., Figuiredo, P.M.G., Ambrogi, B.G., Oliveira, A.C.F., Ribeiro, G.T. and Neces, F.S. (2016) Composition and Richness of Arboreal Ants in Fragments of Brazilian Caatinga: Effects of Secondary Succession. Sociobiology, 63, 762-769. https://doi.org/10.13102/sociobiology.v63i2.909
Galindo, C. (2010) áreas comunitarias protegidas en Oaxaca. In: Carabias, J., Sarukhán, J., de la Maza, J. and Galindo, C., Eds., Patrimonio natural de México. Cien casos de éxito, Comisión Nacional para el Conocimiento y uso de la Biodiversidad, México, 20.
Varela-Hernández, F., Riquelme, F., Reyes-Prado, H. and Jones, R.W. (2016) New Records of Ants from Oaxaca, Southern Mexico. Southwestern Entomologist, 41, 705-714. https://doi.org/10.3958/059.041.0313
Heil, M., González-Teuber, M., Clement, L.S., Kautz, S., Verhaagh, M. and Silva, B.J.C. (2009) Divergent Investment Strategies of Acacia Myrmecophytes and the Coexistence of Mutualists and Exploiters. Proceedings of the National Academy of Sciences of the United States of America, 106, 18091-18096. https://doi.org/10.1073/pnas.0904304106
Backus, V.L. and Herbers, J.M. (1992) Sexual Allocation Ratios in Forest Ants: Food Limitation Does Not Explain Observed Patterns. Behavioral Ecology and Sociobiology, 30, 425-429. https://doi.org/10.1007/BF00176178
Foitzik, S., Backus, V.L., Trindl, A. and Herbers, J.M. (2004) Ecology of Leptothorax Ants: Impact of Food, Nest Sites and Social Parasites. Behavioral Ecology and Sociobiology, 55, 484-493. https://doi.org/10.1007/s00265-003-0718-9
VanWeelden, M.T., Bennett, G. and Buczkowski, G. (2015) The Effects of Colony Structure and Resource Abundance on Food Dispersal in Tapinoma sessile (Hymenoptera: Formicidae). Journal of Insect Science, 15, 1-7. https://doi.org/10.1093/jisesa/ieu176