Results 41 to 50 of about 226,785 (205)

Ant recognition cue diversity is higher in the presence of slavemaker ants [PDF]

open access: yesBehavioral Ecology, 2015
Social insect colonies defend themselves from intruders through nestmate recognition, yet the evolution and maintenance of recognition cue diversity is still poorly understood. We compared the recognition cue diversity of 9 populations of Temnothorax longispinosus ant colonies, including populations that harbored the socially parasitic slavemaker ant ...
Evelien Jongepier, Susanne Foitzik
openaire   +1 more source

Sanitizing the fortress: protection of ant brood and nest material by worker antibiotics [PDF]

open access: yes, 2013
Social groups are at particular risk for parasite infection, which is heightened in eusocial insects by the low genetic diversity of individuals within a colony. To combat this, adult ants have evolved a suite of defenses to protect each other, including
Graystock, P   +4 more
core   +1 more source

The Megadiverse Australian Ant Genus Melophorus: Using CO1 Barcoding to Assess Species Richness

open access: yesDiversity, 2016
Melophorus is an exceptionally diverse ant genus from arid Australia that has received little taxonomic attention, such that just a fraction of its remarkable number of species is described.
Alan N. Andersen   +2 more
doaj   +1 more source

Diversity and Resilience of Seed-Removing Ant Species in Longleaf Sandhill to Frequent Fire

open access: yesDiversity, 2022
Prescribed fire is used globally as a habitat restoration tool and is widely accepted as supporting biotic diversity. However, in fire-prone ecosystems, research has sometimes documented post-fire reduction in ant diversity and accompanying changes in ...
Rachel A. Atchison, Andrea Lucky
doaj   +1 more source

Does cattle grazing affect ant abundance and diversity in temperate grasslands? [PDF]

open access: yes, 2012
Half of the world’s land base is grazed by domesticated livestock. Because of the important functional role of ants in grasslands, it is important to understand the effect of livestock grazing on ant abundance and diversity.

core   +1 more source

Community Structure of Leaf-Litter Ants in a Neotropical Dry Forest: A Biogeographic Approach to Explain Betadiversity

open access: yesPsyche: A Journal of Entomology, 2012
This paper describes habitat and geographic correlates of ant diversity in Serra da Bodoquena, a poorly surveyed region of central-western Brazil. We discuss leaf-litter ant diversity on a regional scale, with emphasis on the contribution of each of the ...
Rogério Silvestre   +2 more
doaj   +1 more source

Synthetic Genes for Artificial Ants. Diversity in Ant Colony Optimization Algorithms

open access: yesInternational Journal of Computers Communications & Control, 2010
Inspired from the fact that the real world ants from within a colony are not clones (although they may look alike, they are different from one another), in this paper, the authors are presenting an adapted ant colony optimisation (ACO) algorithm that incorporates methods and ideas from genetic algorithms (GA). Following the first (introductory) section
Sorin C. Negulescu   +2 more
openaire   +2 more sources

Dominance–diversity relationships in ant communities differ with invasion [PDF]

open access: yesGlobal Change Biology, 2018
AbstractThe relationship between levels of dominance and species richness is highly contentious, especially in ant communities. The dominance‐impoverishment rule states that high levels of dominance only occur in species‐poor communities, but there appear to be many cases of high levels of dominance in highly diverse communities.
Xavier Arnan   +44 more
openaire   +5 more sources

Fossil Ants (Hymenoptera: Formicidae) of the Middle Eocene Kishenehn Formation

open access: yesSociobiology, 2015
A broad range of interesting fossil insects have been discovered recently in Kishenehn Formation shale (middle Eocene, ca. 46 myo) in northwestern Montana, among them a diversity of ant species.
John S Lapolla, Dale E Greenwalt
doaj   +1 more source

Supercolonial structure of invasive populations of the tawny crazy ant Nylanderia fulva in the US [PDF]

open access: yes, 2018
Background: Social insects are among the most serious invasive pests in the world, particularly successful at monopolizing environmental resources to outcompete native species and achieve ecological dominance.
Calcaterra, Luis Alberto   +7 more
core   +2 more sources

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