منابع مشابه
Three new species and reassessment of the rare Neotropical ant genus Leptanilloides (Hymenoptera, Formicidae, Leptanilloidinae)
We describe three new species of the Neotropical ant genus Leptanilloides: Leptanilloides gracilissp. n. based on workers from Mexico and Guatemala, Leptanilloides erinyssp. n. based on workers and a gyne from Ecuador, and Leptanilloides femoralissp. n. based on workers from Venezuela. The description of Leptanilloides gracilis is a northern extension of the known range of the genus, now number...
متن کاملAdoption of parasitic Maculinea alcon caterpillars (Lepidoptera: Lycaenidae) by three Myrmica ant species
Maculinea butterflies are parasites of Myrmica ant nests. The Alcon blue, Maculinea alcon, is unusual in that it parasitizes the nests of several Myrmica species, using M. rubra, M. ruginodis and M. scabrinodis as hosts in different parts of Europe. In Denmark it uses M. rubra and M. ruginodis, but never M. scabrinodis. Some populations use one of these species exclusively, despite the presence...
متن کاملThe Ant Fauna of a Tropical Rain Forest: Estimating Species Richness Three Different Ways
Species richness is an important characteristic of ecological communities, but it is difficult to quantify. We report here a thorough inventory of a tropical rain forest ant fauna and use it to evaluate species richness estimators. The study was carried out in ;1500 ha of lowland rain forest at La Selva Biological Station, Costa Rica. Diverse methods were used, including canopy fogging, Malaise...
متن کاملA New Ant Colony Optimization Algorithm: Three Bound Ant System
Since its introduction, ant colony optimization (ACO) algorithms and especially the MAX-MIN ant system (MMAS) [4] are found to be well suited for many challenging optimization problems. Our theoretical analyses of MMAS allowed us to create the new algorithm, named the three bound ant system (TBAS), which has lower computational complexity and at the same time retains and even improves the quali...
متن کاملA global database of ant species abundances.
What forces structure ecological assemblages? A key limitation to general insights about assemblage structure is the availability of data that are collected at a small spatial grain (local assemblages) and a large spatial extent (global coverage). Here, we present published and unpublished data from 51 ,388 ant abundance and occurrence records of more than 2,693 species and 7,953 morphospecies ...
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ژورنال
عنوان ژورنال: Psyche: A Journal of Entomology
سال: 1991
ISSN: 0033-2615,1687-7438
DOI: 10.1155/1991/91768