A Neotropical Ant Mosaic

Leston, Dennis

doi:10.1093/aesa/71.4.649

Cited by 111 publications

(97 citation statements)

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“…The mean density of Atta colonies in Central Amazonia (0,38 per ha) is similar to that found by Cherrett (1968) in an evergreen forest of Trinidad (0.6 colonies per ha), but smaller than that found by Rockwood (1973 and included references) in evergreen forests of Costa Rica (1.0 to 2.5 colonies per ha) and by Leston (1978) in Bahia, Brazil (3 colonies per ha). Although not providing density estimates, Cherrett (198l) found equal numbers of A. cephalotes and A, s. sexdens colonies in a newly felled "terra-fir me" forest in the Rio Jari forestry project (Northern Amazonia), It would be interesting to know why in Central Amazonia A. s. sexdens is the dominant species.…”

Section: Discdssionsupporting

confidence: 80%

Distribution of Atta (Hymenoptera - Formicidae) in "terra-firme" rain forest of Central Amazonia: density, species composition and preliminary results on effects of forest fragmentation

Vasconcelos

1988

Acta Amaz.

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Section: Discdssionsupporting

confidence: 80%

Distribution of Atta (Hymenoptera - Formicidae) in "terra-firme" rain forest of Central Amazonia: density, species composition and preliminary results on effects of forest fragmentation

Vasconcelos

1988

Acta Amaz.

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“…A rectangular shaped botanical reserve of secondary rain forest, measuring about 400 m × 1000 m (see map in Alvim and Rosário, 1972), exists within the grounds and is surrounded by cocoa on the northern, western and eastern sides, while the southern side adjoins a grassland which is separated by an avenue of planted shade trees along the outer margin of the forest. This is the same reserve in which Leston (1978) first described the Neotropical ant mosaic.…”

Section: Ant Samplingmentioning

confidence: 67%

Ant litter fauna of forest, forest edges and adjacent grassland in the Atlantic rain forest region of Bahia, Brazil

Majer¹,

Delabie

McKenzie³

1997

Insectes soc.

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SummaryThe litter ant fauna was sampled by Winkler sacks and pitfall traps along transects running through Atlantic rain forest into an adjacent grassland. Transects ran 65 m into the forest and 45 m into the field. Ninety-seven species of ants were sampled and scored, 85 were found in the forest, 48 were found in the field and 36 were common to both habitats. There was some evidence that species richness was lowest in the field and high at the deepest point within the forest. The composition of the ant community at the different distances into the forest and field was analysed by a number of hierarchical clustering procedures and also by ordinating the data in three-dimensional space. A two-way table of the ant assemblages derived from the clustering procedure versus the groupings of transect distances obtained by the same procedure indicated that certain ant species had preferences for the field or particular distances into the forest. It is concluded that although the ant fauna of Atlantic rain forest is severely affected by clearing, a forest-like ant fauna is able to persist right up to the interior edge of the forest.

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“…The general spatial patterns seen with ground-foraging ants are frequently thought to result from interspecific competition (Parr & Gibb 2010). Part of the evident spatial structure is the existence of mosaics (Leston 1978, Armbrecht et al 2001, Davidson et al 2003 in which patches of dominant species are arranged in space something like a jigsaw puzzle. Ground-foraging ants on coffee farms seem also to form this mosaic spatial pattern; various species form patches that are relatively discrete, with each species occupying its own space and the patches fitting together almost as if they were pieces in a jigsaw puzzle (Majer & Queiroz 1993, Perfecto 1994.…”

Section: Competition and Foraging In Ant Assemblagesmentioning

confidence: 99%

Complex Ecological Interactions in the Coffee Agroecosystem

Perfecto

Vandermeer

Philpott

2014

Annu. Rev. Ecol. Evol. Syst.

107

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Coffee agroecosystems have become iconic in the study of how agriculture can contribute to the conservation of biodiversity and how biodiversity can deliver ecosystem services to agriculture. However, coffee farms are also excellent model systems for ecological research. Throughout the tropics coffee farms are cultivated using varying numbers and diversity of shade trees, representing a gradient of diversity and complexity, ranging from forest-like "shade coffee" to intensified shadeless "sun coffee." Here we synthesize ecological research in the coffee agroecosystem focusing on four topics that have received considerable recent attention: (a) trophic interactions (especially vertebrates and ants as predators), (b) trait-mediated indirect interactions, (c) competition and community assembly (mainly birds and ants), and (d ) spatial constraints on interactions.

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A Neotropical Ant Mosaic

Cited by 111 publications

References 0 publications

Distribution of Atta (Hymenoptera - Formicidae) in "terra-firme" rain forest of Central Amazonia: density, species composition and preliminary results on effects of forest fragmentation

Distribution of Atta (Hymenoptera - Formicidae) in "terra-firme" rain forest of Central Amazonia: density, species composition and preliminary results on effects of forest fragmentation

Ant litter fauna of forest, forest edges and adjacent grassland in the Atlantic rain forest region of Bahia, Brazil

Complex Ecological Interactions in the Coffee Agroecosystem

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