Diversidade e riqueza de formigas (Hymenoptera: Formicidae) em remanescentes de Mata Atlântica na Bacia Hidrográfica do Alto Tietê, SP

Abstract

Abstract:The objective of this study was to describe the diversity, composition and similarity of the ant fauna in seven remnants of Atlantic Forest of Upper Tietê River Basin. Two of these remnants belong to Conservation Units, four are under the protection and a fragment belongs to a private property. In each area, 50 m 2 litter samples were collected, which underwent mini-Winkler extractors, where they remained for 48 h. All collections occurred during the rainy season. In total were recorded 11 subfamilies, 44 genera and 158 morphospecies/species of ants. The most frequent species in all areas were Pheidole sp.7, Solenopsis sp.1, Hypoponera sp.1 and Strumigenys denticulata. The highest α diversity value was recorded in the conservation unit with characteristic Atlantic Forest floristic composition, the lowest value in forests with anthropogenic influence. The variation in species composition between areas indicates the replacement of species among remnants of dense rain forest of the Alto Tietê River Basin, which suggests the importance of preserving these areas for the conservation of the regional ant fauna.

An assessment of leaf-litter and epigaeic ants (Hymenoptera: Formicidae) living in different landscapes of the Atlantic Forest Biome in the State of Bahia, Brazil

“…The Ponerinae and Formicinae subfamilies presented also a large number of species, a pattern that is common with other studies on ant communities in the Atlantic Forest biome (Delabie et al 1999;Santos et al 2006;Suguituru 2013). Most of Ponerinae are forest specialists and can be very abundant and diverse in tropical and subtropical regions; the Ponerinae appears as the second subfamily if we rank the species number per subfamily in conserved forests or agroforestry (Delabie et al 1999).…”

Occurrence and natural history of Myrmelachista Roger (Formicidae: Formicinae) in the Atlantic Forest of southeastern Brazil

“…The seven Myrmelachista species recorded in the studied Atlantic Forest remnants c o m p l e m e n t t h e e x i s t i n g d a t a o n a n t biodiversity in the region (Suguituru et al 2011(Suguituru et al , 2013) and the tree species in which nests of this ant genus can be found (Table 4). The species richness that was found is rel evant for biodiversity studies because workers are rarely obser ved foraging on the surfaces of plants (Longino 2006 (McNett et al 2010).…”

Ants in the diet of Collared Anteater, Tamandua tetradactyla (Linnaeus, 1758) (Pilosa, Myrmecophagidae), in the state of Rio de Janeiro, Brazil

“…It has been observed in the literature that rare species are found in the diet, possibly due to the fact that it is difficult to obtain samples in a suitable conservation state (Hayssen 2011, Sandoval-Gómez et al 2012, Vaz et al, 2012, Ferreira et al, 2015, Cunha et al, 2015. Approximately 9,000 ants can be consumed per day by an anteater (Macdonald 2007), depending on their habitat and also their state of preservation (Leal et al 1993, Lopes et al 2010, Suguituru et al 2013. Despite this large amount, in many studies only 10% of the stomach contents available for analysis are used, leaving other food items, such as ants and other arthropods (Reis-Filho et al 2007, Gallo et al 2017.…”