Amphibians have declined dramatically in many areas of the world. These declines seem to
have worsened over the past 25 years and amphibians are now more threatened than either …

Microorganisms play a fundamental role in the functioning and stability of coral reef
ecosystems. However, environmental disturbances can trigger alterations to the natural …

Ecologists often face the task of studying the association between single species and one or
several groups of sites representing habitat types, community types, or other categories …

Indicator species are species that are used as ecological indicators of community or habitat
types, environmental conditions, or environmental changes. In order to determine indicator …

The vast scope of conservation problems has forced biologists and managers to rely on"
surrogate" species to serve as shortcuts to guide their decision making. These species …

Indicator species are often determined using an analysis of the relationship between the
species occurrence or abundance values from a set of sites and the classification of the …

Summary 1 Bioindicators of habitat quality and environmental change must be identified
quantitatively and tested independently to confirm their usefulness. We used the indicator …

With up to a quarter of all insect species heading towards extinction over the next few
decades, there is now a pressing need to summarize the techniques available for measuring …

Summary 1 We reviewed the use of dung beetles as indicators of environmental change,
highlighting the influence of natural forest dynamics on species distributions in primary forest …

The tropical dry forest region along the western slope of Central America represents a
biodiverse and fragile area that is under increasing pressure from agricultural production …