Two new species of Deuterosminthurus are described and illustrated. One is found in dry forest canopy at Chamela, Jalisco, Mexico, and the other is associated with sugarcane at La Habana, Cuba. A key for identification of ...

Knowledge of the population dynamics of tropical trees has expanded considerably in the past 20 years. An important observation deriving from these investigations is the confirmation that population behaviour varies both ...

Speleonura n. g. (Neanurinae) and the type species S. kenchristianseni n. sp., are described and illustrated from Porter's Cave, Bath County, Virginia. The new genus is characterized by the lack of eyes and the presence ...

A new species of Hylaeanura Arle, from Quintana Roo state is described and illustrated. The sensory chaetotaxy of the genus is discussed and Pal anura nepalensis is transferred to Hylaeanura.

Trachymolgus jesusi sp. nov. is described and illustrated. This species was collected from soil and leaf litter of a tropical dry forest in western Mexico.

The aim of this study was to compare mycorrhizal abundance and diversity in sites with different regimes of disturbance in a tropical rain forest at Los Tuxtlas, Veracruz, Mexico. Arbuscular mycorrhizal spores were quantified ...

The abundance patterns of leaf litter and soil springtails (Hexapoda: Collembola) from two hydrological watersheds of the Chamela Biological Station (EBCh, UNAM) in Jalisco, Mexico are described and compared based on monthly ...

Penaeus setiferus postlarvae were exposed to acute levels of ammonia, nitrite, and to a mixture of both by a short-term static method. The 24-h, 48-h and 72-h LC50 values for un-ionized ammonia were 1.49, 1.21 and 1.12 ...

Changes in the position along the elevational gradient for plant species are a predicted consequence of global and local climate change. Within the area of influence of cities it is necessary, for conservation and ecological ...