Results 31 to 40 of about 1,898,400 (195)

Effects of Peri-Urbanization on Coastal Sage Scrub Ant Species in Baja California

open access: yesDiversity, 2023
Increasing urbanization on the Baja California Peninsula threatens ant diversity. Reductions in ant species diminish ecosystem services provided to semiarid coastal scrub areas.
Alejandro E. Mieles   +2 more
doaj   +1 more source

Population Diversity in Ant-inspired Optimization Algorithms

open access: yesComputer Science, 2021
Finding a balance between exploration and exploitation is very important in the case of metaheuristics optimization, especially in the systems leveraging population of individuals expressing (as in Evolutionary Algorithms, etc.) or constructing (as in Ant Colony Optimization) solutions.
Aleksander Byrski   +7 more
openaire   +3 more sources

Associations of Two Ecologically Significant Social Insect Taxa in the Litter of an Amazonian Rainforest: Is There a Relationship between Ant and Termite Species Richness?

open access: yesPsyche: A Journal of Entomology, 2012
In spite of the ecological dominance of Neotropical ants and termites, little is understood about how their interactions influence their species richness and distribution.
Amy L. Mertl   +3 more
doaj   +1 more source

An ant system algorithm for automated trajectory planning [PDF]

open access: yes, 2010
The paper presents an Ant System based algorithm to optimally plan multi-gravity assist trajectories. The algorithm is designed to solve planning problems in which there is a strong dependency of one decision one all the previously made decisions. In the
Vasile, M., Ceriotti, M.
core   +4 more sources

Ants as flower visitors : floral ant-repellence and the impact of ant scent-marks on pollinator behaviour [PDF]

open access: yes, 2012
As flower visitors, ants rarely benefit a plant, commonly disrupting pollination by deterring other flower visitors, or stealing nectar. This thesis examines three aspects of ant-flower interactions, focusing on the occurrence of floral traits that ...
Ballantyne, Gavin
core   +2 more sources

Promoting Search Diversity in Ant Colony Optimization with Stubborn Ants

open access: yesProcedia Computer Science, 2012
AbstractIn ant colony optimization (ACO) methods, including Ant System and MAX-M IN Ant System, each ant stochastically generates its candidate solution, in a given iteration, based on the same pheromone T and heuristic η information as every other ant.
Ashraf M. Abdelbar, Donald C. Wunsch II
openaire   +2 more sources

Functional composition of ant assemblages in habitat islands is driven by habitat factors and landscape composition

open access: yesScientific Reports, 2021
Fragmented natural habitats within human-transformed landscapes play a key role in preserving biodiversity. Ants as keystone species are essential elements of terrestrial ecosystems; thus, it is important to understand the factors influencing their ...
Balázs Deák   +8 more
doaj   +1 more source

Macroecology and macroevolution of the latitudinal diversity gradient in ants [PDF]

open access: yesNature Communications, 2018
AbstractThe latitudinal diversity gradient—the tendency for more species to occur toward the equator—is the dominant pattern of life on Earth, yet the mechanisms responsible for it remain largely unexplained. Recently, the analysis of global data has led to advances in understanding, but these advances have been mostly limited to vertebrates and trees ...
Evan P. Economo   +4 more
openaire   +5 more sources

Ant Diversity Is Enhanced by Ecological Infrastructures in Agroecosystems: A Case Study in Irrigated Mediterranean Farmland

open access: yesAgronomy, 2022
We aimed at assessing the role of ecological infrastructures (EI) in promoting ant biodiversity in floodplain Mediterranean agricultural crops. We examined and compared ant communities at the interface between EI (remnant vegetation patches) and ...
Vera Zina   +6 more
doaj   +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

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