There has been an increasing number of inventories of gall-inducing arthropods in the Neotropics. Nonetheless, very few inventories have been carried out in areas where the flora is well documented, and records of galls from herbaria and sites outside the study area have seldom been utilized. In this study we provide a checklist of the native vascular plants of a 345 ha forest reserve in the Caribbean lowlands of Costa Rica and document which of these plants were found to harbor galls. The gall surveys were carried out between November 2013 and December 2016. We also cross-checked our plant list with the previous gall records from elsewhere in the country and searched for galls on herbarium specimens of dicots reported from the reserve. In total, we recorded 143 families and 1174 plant species, of which 401 were hosts of galls. Plant hosts of galls were found in the following non-mutually exclusive categories: 209 in our field sampling, 257 from previous records, and 158 in herbarium specimens. Of our field records of galls, 77 were new for the country, 77 were also found in the herbarium and 110 had been previously recorded in the country. Herbarium specimens and previous records are good indicators of potential gall hosts but around one quarter (40/158) of the gall records in the herbarium were ambiguous as to whether the tissue alteration was a gall or not. Plant family size was related to number of gall hosts, but most dicot families have similar proportions of gall host species. We concluded that more than a third of the native plants in the reserve are gall hosts, but this number increased to 44.93 % when only dicots were considered. Our results demonstrate the utility of providing complete plant inventories when conducting gall inventories, and of using herbarium specimens and previous galls studies to infer gall diversity in a specific area.
Araújo, W. S. (2011). Size, age and composition: characteristics of plant taxa as predictors of the diversity of gall-midges (Diptera: Cecidomyiidae). Revista de Biología Tropical, 59(4), 1599-1607.
Araújo, W. S., Santos, B. B., & Gomes-Klein, V. L. (2012). Relationship between host plant diversity and gall-inducing insect’s richness in the Brazilian Cerrado. Neotropical Biology and Conservation, 7(1), 41-47.
Araújo, W. S. D., Silva, I. P. A., Santos, B. B. D., & Gomes-Klein, V. L. (2013). Host plants of insect-induced galls in areas of cerrado in the state of Goiás, Brazil. Acta Botanica Brasilica, 27(3), 537-542.
Arriola, I. A. A., Junior, J. C. F. M., Mouga, D. M. D. S., Isaias, R. M. S., & Costa, E. C. (2016). Where host plant goes, galls go too: new records of the Neotropical galling Cecidomyiidae (Diptera) associated with Calophyllum brasiliense Cambess. (Calophyllaceae). Checklist, 12(4), 1924.
Butterill, P. T. & Novotny, V. (2015). Gall-forming insects in a lowland tropical rainforest: low species diversity in an extremely specialized guild. Ecological Entomology, 40, 409-419.
Carneiro, M. A. A., Branco, C. S. A., Braga, C. E. D., Almada, E. D., Costa, M. B. M., Maia, V. C., & Fernandes, G. W. (2009). Are gall midge species (Diptera, Cecidomyiidae) host-plant specialists? Revista Brasileira de Entomologia, 53(3), 365-378.
Carneiro, R. G. S., Pacheco, P., & Isaias, R. M. S. (2015). Could the extended phenotype extend to the cellular and subcellular levels in insect-induced galls? PLoS ONE, 10(6), e0129331.
Cuevas-Reyes, P., Siebe, C., Martínez-Ramos, M., & Oyama, K. (2003). Species richness of gall-forming insects in a tropical rain forest: correlations with plant diversity and soil fertility. Biodiversity and Conservation, 12, 411-422.
Dalbem, R. V. & Mendonça, M. D. S. (2006). Diversity of galling arthropods and host plants in a subtropical forest of Porto Alegre, Southern Brazil. Neotropical Entomology, 35(5), 616-624.
Espírito-Santo, M. M. & Fernandes, G. W. (2007). How many species of gall-inducing insects are there on Earth and where are they? Annals of the Entomological Society of America, 100(2), 95-99.
Fernandes, G. W. (1992). Plant family size and age effects on insular gall-forming species richness. Global Ecology and Biogeography Letters, 2(3), 71-74.
Fernandes, G. W., Carneiro, M. A. A., Lara, A. C. F., Allain, L. R., Andrade, G. I., Julião, G. R., … & Silva, I. M. (1996). Galling insects on neotropical species of Baccharis (Asteraceae). Tropical Zoology, 9(3), 315-332.
Fernandes, G. W., Coelho, M. S., & Santos, J. C. (2014). Neotropical insect galls: status of knowledge and perspectives. In G. W. Fernandes & J. C. Santos (Eds.), Neotropical insect galls (pp. 1-14). Washington DC, USA: Springer.
Fernandes, G. W., Santos, J. C., & Gomes, V. M. (2012). Misleading herbivory in a tropical tree. Arthopod-Plant Interactions, 6(4), 649-654.
Gagné, R. J. (1994). The gall midges of the Neotropical region. New York, USA: Cornell University Press.
Gagné, R. J., Ley-López, J. M., & Hanson, P. E. (2018). First New World record of a gall midge from palms: a new species of Contarinia (Diptera: Cecidomyiidae) from Geonoma cuneata in Costa Rica. Proceedings of the Entomological Society of Washington, 120(1), 51-61.
Hammel, B.E., Grayum, M.H., Herrera, C. & Zamora, N. (Eds.). (2003-2015). Manual de Plantas de Costa Rica (Vols. 1-3, 5-8). St. Louis: Missouri Bot. Garden/INBio/Museo Nacional de Costa Rica.
Hanson, P. E. & Gómez-Laurito, J. (2005). Diversity of gall-inducing arthropods of Costa Rica. In A. Raman, C. W. Schaefer, & T. M. Withers (Eds.), Biology, ecology, and evolution of gall-inducing arthropods (pp. 673-692). New Hampshire, USA: Science Publishers.
Holdridge, L. R. (1978). Ecología basada en zonas de vida. San Jose, Costa Rica: IICA.
Isaias, R. M. S., Carneiro, R. G. S., Oliveira, D. C., & Santos, J. C. (2013). Illustrated and annotated checklist of Brazilian gall morphotypes. Neotropical Entomology, 42, 230-239.
Julião, G. R., Venticinque, E. M., Fernandes, G. W., & Price, P. W. (2014). Unexpected high diversity of galling insects in the Amazonian upper canopy: The savanna out there. PLoS ONE, 9(12), e114986.
Maia, C. M. & Mascarenhas, B. (2017). Insect galls of the Parque Nacional do Itatiaia (Southeast Region, Brazil). Annals of the Brazilian Academy of Sciences, 89(1), 505-575.
Medianero, E., Valderrama, A., & Barrios, H. (2003). Diversidad de insectos minadores de hojas y formadores de agallas en el dosel y sotobosque del bosque tropical. Acta Zoológica Mexicana, 89, 153-168.
Mendonça, M. S. (2007). Plant diversity and galling arthropod diversity - searching for taxonomic patterns in an animal-plant interaction in the Neotropics. Boletín de la Sociedad Argentina de Botánica, 42(3-4), 347-357.
Nieves-Aldrey, J. L., Ibañez, A., & Medianero, E. (2008). Richness and composition of gall-inducing arthropods at Coiba National Park, Panama. Revista de Biología Tropical, 56(3), 1269-1286.
Oliveira, D. C., Isaias, R. M. S., Fernandes, G. W., Ferreira, B. B., Carneiro, R. G. S., & Fuzaro, L. (2016). Manipulation of host plant cells and tissues by gall-inducing insects and adaptive strategies used by different feeding guilds. Journal of Insect Physiology, 84, 103-113.
Raman, A., Schaefer, C. W., & Withers, T. M. (2005). Biology, Ecology, and Evolution of Gall-inducing Arthropods (Vol. 1 and 2). New Hampshire: Science Publishers Inc.
Rat, M. M., & Anačkov, G. T. (2012). Herbarium BUNS. Plant gall collection. Zbornik Matice srpske za prirodne nauke, 122(122), 36-71.
Ribeiro, S. P., Basset, Y., & Kitching, R. (2014). Density of Insect Galls in the Forest Understorey and Canopy: Neotropical, Gondwana or Global Patterns? In G. W. Fernandes & J. C. Santos (Eds.), Neotropical insect galls (pp. 129-141). Washington DC, USA: Springer.
Santos, M. G., Hanson, P., Maia, V. C., & Mehltreter, K. (2019). A review of galls on ferns and lycophytes. Environmental Entomology, 48(1), 53-60.
Shorthouse, J. D., Wool, D., & Raman, A. (2005). Gall-inducing insects - Nature´s most sophisticated herbivores. Basic and Applied Ecology, 6, 407-411.
Stuart, J. J., Chen, M.-S., Shukle, R., & Harris M. O. (2012). Gall midges (Hessian flies) as plant pathogens. Annual Review of Phytopathology, 50, 339-357.
The Taxonomic Name Resolution Service. (2018). iPlant Collaborative (Version 4.0). Retrieved from http://tnrs.iplantcollaborative.org
Tropicos. (2018). Missouri Botanical Garden, St. Louis, MO, USA. Retrieved from http://www.tropicos.org
USDA. (2018). The PLANTS Database. National Plant Data Team, Greensboro, NC, USA. Retrieved from http://plants.usda.gov
Veenstra, A. (2012). Herbarium collections - An invaluable resource for gall midge taxonomists. Muelleria, 30(1), 59-64.