Comparative dynamics of small mammals populations in treefall gaps and surrounding understorey within Amazonian rainforest

Article Abstract:

In the Amazon food resource availability in eleven treefall gaps and paired understorey habitats were quantified and used feeding experiments to test if two common terrestrial rodents would perceive differences between habitats. Results suggest the presence of source-sink dynamics in a tropical gap-understorey landscape, where two rodentsE species perceive habitats differently.

Science & research, South Africa, Research, Habitat (Ecology), Habitats, Amazon River region, Mammals

---

Estimating rates of local extinction and colonization in colonial species and an extension to the metapopulation and community levels

Article Abstract:

Two general approaches for the modeling and analysis of colony dynamics for sampling situations are defined and developed. A general probabilistic model for the data and a constrain model parameters based on various hypotheses about colony dynamics for both approaches was developed

Analysis, Animal populations, Plant populations

---

Relative species richness and community completeness: birds and urbanization in the Mid-Atlantic states

Article Abstract:

Research shows a negative correlation between urban development levels and avian species richness. Data were obtained by combining a list of regional bird species for the Mid-Atlantic states and site estimates of number of species present using a capture-recapture model.

United States, Statistical Data Included, Planning, Biological diversity, Biodiversity, Birds, Protection of, Bird conservation, Bird populations, Urbanization

Similar abstracts:

• Abstracts: Validating possible effects of eutrophication using PCB concentrations in bivalves and sediment of the US musselwatch and benthic surveillance programs
• Abstracts: The environmental status of the Baltic Sea in the 1940s, today, and in the future. The turnover of metals in a eutrophic and an oligotrophic lake in Sweden
• Abstracts: Carbon isotope ratios in belowground carbon cycle processes. Age of soil organic matter and soil respiration: radiocarbon constraints on belowground C dynamics

This website is not affiliated with document authors or copyright owners. This page is provided for informational purposes only. Unintentional errors are possible.