Caracterização de ninhos e tamanho de colônia de Acromyrmex rugosus (F. Smith) (Hymenoptera, Formicidae, Attini) em restingas de Ilhéus, BA, Brasil

Soares, Ilka Maria Fernandes; Lúcia, Terezinha Maria Castro Della; Santos, Adriana Anadir dos; Nascimento, Ivan Cardoso do; Delabie, Jacques Hubert Charles

doi:10.1590/s0085-56262006000100020

Cited by 11 publications

(11 citation statements)

References 3 publications

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“…four nests of Acromyrmex landolti. N14 e N25 in Figure 5), similarly to the result of Soares et al (2006) on A. rugosus rugosus. In A. balzani, there seems to have a pattern of spatial distribution of the chambers because they are located between the tower projections and the amount of loose soil, overlapping and connected by only one vertical channel (Gonçalves 1961;Pimenta et al, 2007;Caldato, 2010).…”

Section: Discussionsupporting

confidence: 80%

“…This suggests that this ant has a relative plasticity in the architecture of its nests, building structures adapted to provide better conditions for the colony. This result differs from other ones relative to several Acromyrmex species that were reported to have nests with a unique vertical tunnel that interconnect the chambers (Weber, 1972;Mendes, 1990;Soares et al, 2006;Caldato, 2010). The differences in nest chamber dimensions show the inexistence of a pattern, the same result found for nests of A. balzani located in Bahia (Silva et al, 2010), São Paulo and Rio Grande do Sul (Gonçalves, 1961), Minas Gerais (Mendes et al, 1992) and Goiás (Pimenta et al, 2007).…”

Section: Discussioncontrasting

confidence: 63%

“…It is possible that there exists a pattern for internal architecture of A. landolti nests, with three to six chambers, since 88% of excavated nests had in mean, 2.3 chambers (Soares et al, 2006), while for A. balzani there are records varying from 3 to 6 and from 3 to 14 chambers with an mean of 8.6 chambers per nest (Silva et al, 2010). Caldato (2010) registered the polydomy in A. balzani calling each unit of a nest of a subnest, totaling, in some cases, eight subnests and until 33 chambers in a single nest.…”

Section: Discussionmentioning

confidence: 99%

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Spatial Distribution and Architecture of Acromyrmex landolti Forel (Hymenoptera, Formicidae) Nests in Pastures of Southwestern Bahia, Brazil

Júnior¹,

Castellani²,

Moreira³

et al. 2013

Sociobiology

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Ants of the genera Atta and Acromyrmex (Myrmicinae: Attini) are in general pests for agricultural and pasture areas. In southwestern Bahia pastures, in Brazil, Acromyrmex landolti Forel occurs at intermediate densities of 260 nests ha-1. In spite of its economic importance, there is not enough research on the bioecological aspects of such species. This paper aims to study the spatial distribution and the architectural pattern of A. landolti nests, as well as to establish the foundations for the improvement of strategies for controlling the pest. The research was carried out during the period of June 2011 and May 2012, in an area of pastures measuring 2.7 ha, in Itapetinga, in Bahia. Twenty five nests were selected. The external mound area, height of the tower, distance between the tower and the external mound area, as well as the tower diameter were all registered. In order to describe the internal architecture, the same nests were completely excavated and five were molded in cement. The spatial distribution of the nests is of aggregated type. The towers height is 2.1 cm and the average diameter is 1.2 cm. The amount of loose soil is of about 8.0 cm from the tower, with an average area of 472.9±312.5 cm² and average volume of 1.4 L±0.9. The depth of the nests varies between 7.0 and 78.0 cm, with an average of 33.2±21.29 cm. The nests have, in average, 4.4±2.0 chambers, being two nests with just one chamber (8%) and another nest (4%) with 11 chambers.

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Section: Discussionsupporting

confidence: 80%

Section: Discussioncontrasting

confidence: 63%

Section: Discussionmentioning

confidence: 99%

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Spatial Distribution and Architecture of Acromyrmex landolti Forel (Hymenoptera, Formicidae) Nests in Pastures of Southwestern Bahia, Brazil

Júnior¹,

Castellani²,

Moreira³

et al. 2013

Sociobiology

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“…The search for ideal conditions of temperature and soil moisture also has been related to persistence of some underground Cydnidae as tenants in nests of Atta spp., i.e., Atarsocoris giselleae (Carvalho) and Amnestus spp. (Froeschner 1960(Froeschner , 1975Moser 1963 ;Soares et al 2006 ).…”

Section: Adult Feeding and Reproductionmentioning

confidence: 99%

Burrower Bugs (Cydnidae)

Schwertner

Nardi

2015

Entomology in Focus

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Burrower bugs are typical pentatomoid insects, small to medium in size, recognized by the morphological adaptations for digging. However, some cydnids live aboveground or on vegetation, feeding on falling seeds or even plant tissues.The family has a worldwide distribution, being well represented in tropical and temperate regions, known in the fossil record since at least the Late Cretaceous. Cydnidae includes more than 750 species in 93 genera, divided in six subfamilies. In the Neotropical region, 145 species are recorded and included in the subfamilies Amnestinae (38 spp.), Cephalocteinae (eight), Cydninae (97), and Sehirinae (one). The monophyly of the Cydnidae and phylogenetic relationships with other pentatomoid families are still controversial. Among the subfamilies, only Cephalocteinae has a strong support in a phylogenetic context. Burrower bugs are phytophagous and seem to be polyphagous, and although the group has been considered of little economic importance, damage to crops in the Neotropical region has been growing in the last 15 years. Because of the burrowing habits and small size of most of the species, people unnoticed its presence, limiting taxonomic characterization, host plants records, as well as damage and symptoms to cultivated plants. In this chapter, an overview of the group in the Neotropical region is presented, including an identifi cation key for subfamilies and genera with the characterization of the commonest species.

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“…Moreover, considering that Cyphomyrmex contains approximately 37 cataloged species (Price et al 2003), studies on this group are concentrated on relatively few species, such as C. costatus (Weber 1957), C. longiscapus (Mueller & Wcislo 1998;Schultz et al 2002), C. muelleri (Schultz et al 2002) and C. morschi (Klingenberg et al 2007). Although nesting biology in fungus-growing ants is extremely species-specifi c, diverse abiotic and biotic conditions are recognized as key factors that aff ect founding queen nesting behavior, nest architecture and, consequently, nest distribution (Jonkman 1980;Hölldobler & Wilson 1990;Mayhé-Nunes 1995;Leal 1998;Moreira et al 2004a;Soares et al 2006;Vasconcelos et al 2006;Verza et al 2007;Silva et al 2009;van Gils et al 2010). For example, according to Vasconcelos et al (2006), founding queens of the leaf-cutter ant Atta laevigata prefer to nest on bare soil rather than on soil covered by leaf litter.…”

mentioning

confidence: 99%

Nesting architecture and population structure of the fungus-growing antCyphomyrmex transversus(Formicidae: Myrmicinae: Attini) in the Brazilian coastal zone of Ilhéus, Bahia

Ramos-Lacau

Silva

Lacau

et al. 2012

Annales de la Société entomologique de France (N.S.)

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Abstract. The present study provides valuable information about the nesting biology and demographics of Cyphomyrmex transversus (Formicidae: Myrmicinae: Attini). This species has been observed nesting under and inside dry coconuts on the forest ground in the Brazilian coastal zone of Ilhéus, state of Bahia. To investigate the association between C. transversus and coconuts, we surveyed 153 coconuts. Of the surveyed ones, 62 (40.5%) exhibited associated colonies of Cyphomyrmex transversus (one colony per coconut): 53 (85.5%) of the 62 colonies nested under the coconut, and nine (14.5%) nested inside. Distributed among 57 of the coconuts, 17 other ant species were found. The ants most frequently found were Paratrechina longicornis and Camponotus atriceps. Nests of C. transversus were structurally simple, with one principal chamber with small depressions located on the base. Inside the nest cavities, yeast-like fungi formed in polygonal masses. More than one dealate queen was observed in several C. transversus colonies. The population of C. transversus individuals per colony increased according the coconut size. We conclude that the use by the ants of coconut pieces as a part of their nest structure and the occurrence of multiple dealate queens per colony show adaptive fl exibility in C. transversus. It may confer a greater capacity for colonization and maintenance of competitive nest densities in the harsh environmental conditions of Brazilian coastal zones. Further studies should consider the social organization of all ant species that nest in coconuts and its effect on colony survival rates and competitive relationships.Résumé. Architecture du nid et structure des populations chez la fourmi champignonniste Cyphomyrmex transversus (Formicidae : Myrmicinae) dans la zone brésilienne côtière de Ilhéus, Bahia. Cette étude présente des données inédites sur la nidifi cation et la démographie de Cyphomyrmex transversus (Formicidae : Myrmicinae : Attini). Les nids de cette espèce ont été rencontrés sous et à l'intérieur de noix de coco sèches tombées sur le sol dans la zone littorale de la région d'Ilhéus, dans l'état de Bahia au Brésil. Pour étudier les modalités de cette nidifi cation particulière, 153 noix de coco ont été collectées. 62 (40.5%) d'entre elles, abritaient des colonies de Cyphomyrmex transversus avec une colonie par noix. Parmi celles-ci, 53 colonies (85.5%) étaient établies sous la noix tandis que neuf (14.5%) étaient à l'intérieur. Parmi 57 de ces noix de coco, 17 autres espèces de fourmis ont été rencontrées. Les plus fréquemment rencontrées ont été Paratrechina longicornis et Camponotus atriceps. Les nids de C. transversus sont structurellement simples, avec une chambre principale et quelques petites dépressions à la base. A l'intérieur de la cavité du nid, un champignon du type levure forme des masses polygonales. Plusieurs reines sans ailes ont été observées dans diverses colonies de C. transversus. Le nombre d'individus dans les colonies de C. transversus augmente en fonction de la taille de la no...

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Caracterização de ninhos e tamanho de colônia de Acromyrmex rugosus (F. Smith) (Hymenoptera, Formicidae, Attini) em restingas de Ilhéus, BA, Brasil

Cited by 11 publications

References 3 publications

Spatial Distribution and Architecture of Acromyrmex landolti Forel (Hymenoptera, Formicidae) Nests in Pastures of Southwestern Bahia, Brazil

Spatial Distribution and Architecture of Acromyrmex landolti Forel (Hymenoptera, Formicidae) Nests in Pastures of Southwestern Bahia, Brazil

Burrower Bugs (Cydnidae)

Nesting architecture and population structure of the fungus-growing antCyphomyrmex transversus(Formicidae: Myrmicinae: Attini) in the Brazilian coastal zone of Ilhéus, Bahia

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