Results 21 to 30 of about 444 (147)

Expanding the Distribution of the Remarkable Ant Gnamptogenys vriesi Brandão & Lattke (Formicidae, Ectatomminae): First Record From Brazil

Sociobiology, 2015
Gnamptogenys vriesi Brandão & Lattke is a rare ant originally described based on a worker and on a gyne collected in Morona Santiago province, in Ecuador.
Ricardo Eduardo Vicente, Lívia Pires Prado, Rogério C. L. Santos   +2 more
doaj   +2 more sources

Exposure of Workers of Ectatomma brunneum Smith (Hymenoptera: Formicidae: Ectatomminae) to ant Baits Containing Different Active Ingredients under Laboratory Conditions

EntomoBrasilis, 2015
This work evaluated the short-range mortality of workers of Ectatomma brunneum Smith when exposed to ant baits in laboratory, in order to verify if the attractiveness of this non-target species by ant baits intended to be used in the control of leaf ...
Viviane Cristina Tofolo, Edilberto Giannotti, Marcos Aparecido Pizano   +2 more
doaj   +4 more sources

Dear Enemy Phenomenon in the Ant Ectatomma brunneum (Formicidae: Ectatomminae): Chemical Signals Mediate Intraspecific Agressive Interactions

Sociobiology, 2019
The integrity of ant colonies depends exclusively on social relationships between their individuals, especially the ability of communication between group members, which is mainly mediated through chemical signals.
Márlon César Pereira, Ellen Liciane Barbosa Firmino, Rafaella Caroline Bernardi, Luan Dias Lima, Ingrid de Carvalho Guimarães, Claudia Andrea Lima Cardoso, William Fernando Antonialli Junior   +6 more
doaj   +3 more sources

Extrafloral nectar as entrée and elaiosomes as main course for ant visitors to a fireprone, mediterranean-climate shrub. [PDF]

Ecol Evol, 2022
Thousands of flowering plants produce both extrafloral nectaries on their leaves and seeds with nutrient‐rich appendages. Their possible interaction was examined in an Australian shrub here and shown that their co‐presence serves to attract ants to the plant throughout the year that then take the seeds from the plant to their nests during the flowering
Lamont BB, Grey J.
europepmc   +2 more sources

The role of body mass in limiting post heat-coma recovery ability in terrestrial ectotherms. [PDF]

Ecol Evol, 2023
Under global warming, animal species show shrinking body size responses to heat. We found that heat‐comatose ants were suffering high predation pressure and thus were ecologically dead. Ants with small mass, however, were more thermal resilient and likely to recover from heat‐coma as compared to larger species, providing an explanation for the decrease
Leong CM, Hui TY, Guénard B.
europepmc   +2 more sources

Effect of Time-Since-Fire on Ant Communities in a Semi-Arid Landscape. [PDF]

Ecol Evol
We sampled ants from five sites with varying fire histories (3, 5, 9, 26, and 34 years since the last fire). A total of 16,360 ants were collected, and 59 species across 20 genera were identified. Our results indicate that total ant abundance was higher in recently burnt sites and decreased with increasing time‐since‐fire, while ant species richness ...
Fernando NL, Schultz NL, Palmer G, Barton PS.   +3 more
europepmc   +2 more sources

Variations in the Cuticular Chemical Profile of the Ant Ectatomma brunneum Smith, F. 1858 (Formicidae: Ectatomminae) Across Different Biomes in Brazil

Sociobiology
The insect cuticle is composed of chemical compounds that evolved to prevent desiccation and provide defense against pathogens. These compounds were subsequently co-opted for chemical communication and, in social insects, are crucial for nestmate ...
William Fernando Antonialli-Junior, Michele Castro de Paula-Silva, Erika Fernandes Neves, Sidnei Eduardo Lima-Junior, Luis Humberto da Cunha Andrade, Sandro Márcio Lima   +5 more
doaj   +2 more sources

Ant Diversity and Stratification in an Amazonian Rainforest. [PDF]

Ecol Evol
We examined the three strata of an Amazonian rainforest (e.g., the ground and leaf litter, understory and canopy) using only two sampling techniques and analyzed their functional traits. We identified 494 ant species from 10 subfamilies and 77 genera over ≈3.0 ha, showing that they are species rich and abundant, particularly at ground level.
Delabie JHC, Dejean A, Leponce M, Longino JT, Orivel J, Touchard A, Compin A.   +6 more
europepmc   +2 more sources

Vertical Stratification Increases the Capacity of Morphological Traits to Predict Trophic Position in Neotropical Ants. [PDF]

Ecol Evol
We use data from 73 Neotropical ant species to examine the strength of associations between nine morphological traits and trophic position. No individual morphological trait explained variation in the trophic position of arboreal species, whereas three traits individually correlated with the trophic position of ground species, but only weakly so ...
Vieira J, Neves KC, Zuanon LA, Gibb H, Andersen AN, Vasconcelos HL.   +5 more
europepmc   +2 more sources

Distribution Pattern of Ants in Huanglianshan National Nature Reserve From Yunnan, China. [PDF]

Ecol Evol
This study found that ant diversity in the Huanglian Mountain National Nature Reserve exhibits a non‐linear distribution pattern along the altitudinal gradient, encompassing 209 species across 9 subfamilies and 66 genera. Elevation significantly structured ant communities in the reserve.
Li X, Zeng H, Zhang Y, Yu Y, Chen C.
europepmc   +2 more sources