leaf litter ants
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Zootaxa ◽  
2021 ◽  
Vol 5061 (2) ◽  
pp. 201-248
Author(s):  
DOUGLAS B. BOOHER

Strumigenys is a globally distributed genus of mostly cryptic leaf-litter ants. In North America they are common throughout eastern deciduous forests but become increasingly rare to the west. Here I review the Strumigenys fauna of western North America north of the Mexico border including all states west of the eastern border of Texas. Six new native species with ranges entirely within this region are described: S. collinsae sp. nov., S. macgowni sp. nov., S. mendezi sp. nov., S. moreauviae sp. nov., S. lucky sp. nov., and S. subtilis sp. nov. Strumigenys ananeotes Longino & Booher 2019 is given a more thorough description, and S. alberti Forel 1893, a Neotropical species, is reported from the region for the first time. All new species bear clear morphological relationships with a native North American clade of “smithistrumiform” species. I include species accounts and provide an illustrated key for all species of this region.  



2021 ◽  
pp. 1-9
Author(s):  
T.P. Rajesh ◽  
Anjana P. Unni ◽  
U. Prashanth Ballullaya ◽  
K. Manoj ◽  
Palatty Allesh Sinu

Abstract Sacred groves (SGs) of India are islets of forests providing ecosystem and spiritual services to man. Studies suggest that SGs are deteriorating on their quality due to urbanization, invasive species, land-use change, and religious modernization. We explored diversity, community, and abundance of overall and different functional groups of litter ants, including Anoplolepis gracilipes – an invasive ant – on paired SG-neighbouring home garden (HG) sites in rural and urban landscape to (a) assess the quality of SGs and (b) examine whether the variation in ant community of the two habitats was predicted by urbanization and abundance of A. gracilipes. We considered species and local contribution to β-diversity to identify species and sites crucial for conservation of sites. Abundance and richness of overall ants, proportional trap incidence of species, and abundance of A. gracilipes were similar on SG and HG, but species diversity and abundance of certain ant functional groups were higher on SG. Ant community of SG was different from HG, but was not affected by urbanization. A. gracilipes and rural SGs contributed the most to β diversity. A. gracilipes gave little pressure on native ant community. The study concludes that SGs, despite invaded by A. gracilipes, have potential for conserving biodiversity.



Sociobiology ◽  
2020 ◽  
Vol 67 (2) ◽  
pp. 163
Author(s):  
Tae Tanaami Fernandes ◽  
Débora Rodrigues Souza-Campana ◽  
Nathalia Sampaio Silva ◽  
Otávio Morais Silva ◽  
Maria Santina de Castro Morini

Twigs in the litter derived from the fragmentation of tree branches form one microhabitat, where entire colonies of ants, both leaf litter and arboreal species, can be found. The objective was to survey ant species that are presente in both the leaf litter and twigs simultaneously. We describe the nest type, the social structure of the colonies and the trophic guild membership of these species. Samples were collected from 10 preserved fragments of Brazilian Atlantic forest. We used Berlese funnels to collect leaf litter ants and manual collection for twig ants. We recorded 80 ant species; 60 species were in leaf litter samples and 35 species were in twigs. Of the total species, only 15 (20%) occurred simultaneously in the leaf litter and in twigs. Of these species, Gnamptogenys striatula, Pheidole sarcina, P. sospes and Solenopsis sp. 2 were the most frequent among leaf litter dwellers, and Myrmelachista catharinae was the most common arboreal species. Most of these belonged to generalista and predator guilds, with “polydomous nests” and colonies monogynous.



2019 ◽  
Vol 43 (5) ◽  
pp. 437-456 ◽  
Author(s):  
Elmo Borges Azevedo KOCH ◽  
José Raimundo Maia dos SANTOS ◽  
Ivan Cardoso NASCIMENTO ◽  
Jacques Hubert Charles DELABIE


Zootaxa ◽  
2019 ◽  
Vol 4656 (2) ◽  
pp. 335-358 ◽  
Author(s):  
DOUGLAS B. BOOHER ◽  
MATTHEW PREBUS ◽  
DAVID LUBERTAZZI

In this study, we revise two groups of cryptic leaf litter ants, the Strumigenys nitens and Strumigenys simulans species groups. These two groups are restricted to the Greater Antilles and the Bahamas. We redefine the species groups, provide a key for the five species in the S. nitens group, and differentiate the two species in the S. simulans group. Four new species are described: Strumigenys caiman sp. nov., S. economoi sp. nov., S. hubbewatyorum sp. nov., and S. zemi sp. nov. We review and provide a key for the Strumigenys fauna of Hispaniola, which comprises the two endemic species S. economoi and S. zemi, six more broadly distributed Neotropical species, and three pan-tropical “tramp” species. 



2019 ◽  
Vol 19 (3) ◽  
Author(s):  
Tae Tanaami Fernandes ◽  
Rogério R. Silva ◽  
Débora Rodrigues de Souza-Campana ◽  
Otávio Guilherme Morais da Silva ◽  
Maria Santina de Castro Morini

Abstract: In the leaf litter, ants have various nesting resources available, such as live or dead trunks, twigs, leaves, fruits and seeds. On the twigs, there are adults and immature individuals, but also the queen and winged. The production of wings requires time and energy from the colony. The objective of this study was to investigate the presence of winged in ant colonies in twigs on the leaf litter. Our prediction is that the richness and abundance of winged in twigs are the greatest in rainy months. We collected all twigs with ants in 552 plots with 16 m2, totaling 8,832 m2 of leaf litter, in areas located in the Brazilian Atlantic Domain. We compared the species richness and the number of colonies with and without winged, as well as the number of winged over a year. In total, we collected 1,521 twigs with colonies belonging to 92 species of ants. The rate of twigs with winged was low, about 12%. In colonies with winged, the total number of twigs, species and amount of winged does not differ between the months considered dry and rainy. The majority of winged species are leaf litter dwellers, such as Linepithema neotropicum, recorded with the highest amount of winged irrespective of the period. Arboreal species colonized 15% of the twigs and, in 1/3 of these species, winged were recorded as part of the composition of the colony. Although winged represent a small percentage of the colony in twigs, our results indicate that this feature is important for the life cycle of 44% of the species that occupy twigs, considering that winged are fundamental for the dispersion of the colony.



2017 ◽  
Vol 5 (19) ◽  
pp. 1 ◽  
Author(s):  
Roberta De Jesus Santos ◽  
Elmo Borges Azevedo Koch ◽  
Clarissa Machado Pinto Leite ◽  
Tiago Jordão Porto ◽  
Jacques Hubert Charles Delabie

The Brazilian Atlantic Forest has a rich biodiversity increasingly threatened by human activities. Since the colonial period, the coast of the state of Bahia is among the most affected regions of Brazil by anthropic pressure. Bahia encloses Atlantic Forest remnants distributed in an area reaching 100-200 km along the east-west axis, by 1,000 km along the north-south axis, parallel to the coast of the Atlantic Ocean. We report hereafter the results of an intensive field survey of leaf litter and epigaeic ants realized in forest remnants of the Atlantic Forest landscapes within the original extension of the biome in 11 localities distributed along four degrees of latitude in the state of Bahia. In each site, 16 plots were collected using pitfall and eight using Winkler traps. We identified 391 ant species belonging to 71 genera and nine subfamilies. Among all species recorded, 21 were common to the whole 11 localities, while 98 species were recorded in a single locality. This study highlights the richness and diversity of epigaeic and leaf-litter ants living in the northern part of the Brazilian Atlantic Forest, and is one of the most representative soil ants’ inventories ever done in this biome for a single state of Brazil.



PLoS ONE ◽  
2017 ◽  
Vol 12 (2) ◽  
pp. e0172464 ◽  
Author(s):  
Miguel Á. García-Martínez ◽  
Jorge E. Valenzuela-González ◽  
Federico Escobar-Sarria ◽  
Fabiola López-Barrera ◽  
Gabriela Castaño-Meneses


2015 ◽  
Vol 44 (6) ◽  
pp. 1488-1497 ◽  
Author(s):  
Miguel Á. García-Martínez ◽  
Federico Escobar-Sarria ◽  
Fabiola López-Barrera ◽  
Gabriela Castaño-Meneses ◽  
Jorge E. Valenzuela-González


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