Results 241 to 250 of about 1,817,602 (304)

Patterns and drivers of leaf‐litter ant diversity along a tropical elevational gradient in Mexico

Journal of Biogeography, 2021
Given their high environmental variation over relatively short distances, mountains represent ideal systems for evaluating potential factors shaping diversity gradients. Despite a long‐standing interest in ecological gradients, ant diversity patterns and
G. Pérez‐Toledo, J. Valenzuela-González, C. Moreno, F. Villalobos, Rogério R. Silva, E. Economo   +5 more
semanticscholar   +1 more source

One ant's trash is another ant's treasure: Army ant middens provide resources for diverse ant assemblages

Biotropica, 2023
AbstractThe army ant Eciton burchellii boasts more animal associates than any other animal species yet described, but the relationship between army ants and other ant species has only been studied in the context of predation. The waste deposits (middens) of army ant colonies are nitrogen‐rich, a potentially high‐value nutrient source for leaflitter ...
Karen Y. Robles López, Jeffrey Sosa‐Calvo, Juliana M. Calixto, Emilia Zoppas de Albuquerque, Kaitlin M. Baudier   +4 more
openaire   +1 more source

Enigmatic Biodiversity Correlations: Ant Diversity Responds to Diverse Resources

Science, 2004
A pattern noted in ecology is that diversity at one level begets diversity at other levels. In the case of consumers competing for similar resources, the diversity of those resources is thought to provide some degree of niche diversification in which a diverse set of consumer species can coexist.
Inge, Armbrecht, Ivette, Perfecto, John, Vandermeer   +2 more
openaire   +2 more sources

Functional diversity of ant-associated bacterial communities

Biology Bulletin, 2016
It was found that ants significantly affect the physiological activity and functional diversity of soil microbial communities, and redistribution of biophilic elements (C and N) down through the profile occurs in anthills compared to the control soil, as well as their accumulation in the underground part of the ant nests.
A A, Dymova, M M, Umarov, N V, Kostina, M V, Golichenkov, M V, Gorlenko   +4 more
openaire   +2 more sources

Species diversity and biological trait function: Effectiveness of ant–plant mutualism decreases as ant species diversity increases

Functional Ecology, 2021
Abstract One of the major concerns of ecological and evolutionary research is the prediction of community function in relation to the degree of biodiversity. To clarify the relationship between biodiversity and the expression of plant defence traits, we investigated ant–plant defensive mutualism in the pioneer plant Mallotus japonicus at several ...
Akira Yamawo, Nobuhiko Suzuki, Jun Tagawa   +2 more
openaire   +1 more source

Gamma, alpha, and beta diversity of ant assemblages response to a gradient of forest cover in human‐modified landscape in Brazilian Amazon

Biotropica, 2022
The partitioning of gamma diversity into its alpha and beta components has been used to quantify the effects of natural habitat reduction on species diversity and distribution.
M. A. S. Costa, F. A. Schmidt
semanticscholar   +1 more source

Disentangling elevational and vegetational effects on ant diversity patterns

, 2020
When aiming to assess the effects of elevation on animal diversity, many studies have been carried out in different vegetation types occurring across elevational gradients.
C. Lasmar, C. Ribas, J. Louzada, Antônio César Medeiros de Queiroz, R. Feitosa, M. M. Imata, Guilherme P. Alves, G. B. Nascimento, F. Neves, Daniel Q. Domingos   +9 more
semanticscholar   +1 more source

Leaf litter ant diversity in Guyana

Biodiversity and Conservation, 2006
Leaf litter ants are an important group of organisms for informing conservation planning. This study presents the beginning of a leaf litter ant dataset for Guyana. Following the ants of the leaf litter protocol, ants were extracted from sifted leaf litter sampled along eight transects from across Guyana.
John S. LaPolla, Ted Suman, Jeffrey Sosa-Calvo, Ted R. Schultz   +3 more
openaire   +1 more source

Diversity control in ant colony optimization

Artificial Life and Robotics, 2004
Optimization inspired by cooperative food retrieval in ants has been unexpectedly successful and has been known as ant colony optimization (ACO) in recent years. One of the most important factors to improve the performance of the ACO algorithms is the complex trade-off between intensification and diversification.
Yoshiyuki Nakamichi, Takaya Arita
openaire   +1 more source

ANT DIVERSITY IN PITCHER-PLANT BOGS OF MASSACHUSETTS

Northeastern Naturalist, 2002
We conducted the first systematic inventory of ant species richness in pitcher-plant bogs of Massachusetts. Twenty-six species were collected in 18 bogs during 1999 and 2000. We collected the bog-specialist Myrmica lobifrons for the first time in Massachusetts and found that it occurred in bogs from the Berkshire Mountains to Nantucket.
Aaron M. Ellison, Elizabeth J. Farnsworth, Nicholas J. Gotelli   +2 more
openaire   +1 more source