indicator species

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indicator species

[′in·də‚kād·ər ‚spē·shēz]

(ecology)

A species whose presence is directly related to a particular quality in its environment at a given location.

References in periodicals archive ?

First of all, within the Transition unit, a subcoastal subtype (S2a) and an inland one (S2b) can be identified; in particular, in the subcoastal subtype, elevation values are lower, alluvial sediments and clays prevail, and most indicator species are hygrophilous (e.

Detecting phytogeographic units based on native woody flora: a case study in central peninsular Italy

Indicator species analysis (ISA) examines the relationship between species occurrence and abundance data and groups of sites (Dufrene and Legendre, 1997).

Community-level impacts of management and disturbance in Western Michigan Oak Savannas

As the interest of this study was to identify possible indicator species of disturbance along the observed gradient, we calculated species abundance per disturbance in each vegetation patch (high, medium and low in shrubland; and high, medium and low in tropical dry forest).

Diversidad vegetal a lo largo de un gradiente de perturbacion en un ecosistema semi-arido en el Centro de Mexico

TWINSPAN (Two Way Indicator Species Analysis) was applied for general classification of flora of Wah Cantonment which had produced Two Way Clustered Dendogram.

MULTIVARIATE ANALYSIS FOR THE ASSESSMENT OF HERBACEOUS ROADSIDES VEGETATION OF WAH CANTONMENT

01 Table 3 Indicator Species Analysis by Habitat Type and Sampling Period Species abbreviation (indicator value, p-value) Habitat Type BBS PP Pre Post Vaav Neag Pasa Agpr (68.

Short-term impacts of prescribed burning on the spider community (Order: Araneae) in a small Ohio grassland

peregrina were considered indicator species in B and C points, respectively (p=0.

Edge effects on the blowfly fauna (Diptera, Calliphoridae) of the Tijuca National Park, Rio de Janeiro, Brazil/Efeitos de borda sobre a fauna de califorideos (Diptera, Calliphoridae) no Parque Nacional da Tijuca, Rio de Janeiro, Brasil

There are indicator species in each stretch of the stream, which can be used to assess the water quality.

Periphytic diatoms as bioindicators in a tropical stream: from urban to rural environments/Diatomaceas perifiticas como bioindicadores em um corrego tropical: do ambiente urbano para o rural

We also expected that habitat types with greater structural heterogeneity, such as treed and wetland habitats, would have more indicator species and higher richness than more uniform habitats, such as alpine and short shrub.

Avian communities of the Northern Mackenzie Mountains, Northwest Territories, Canada

This will help prepare communities to address key vulnerabilities to climate change, conserve snow leopards as the flagship and indicator species of Asia s high mountain landscape health, and provide practical and measurable demonstrations that advance a vision for water security and sustainable mountain development across Asia.

Conservation and Adaptation in Asia's High Mountain Landscapes and Communities Project

Finally, we used indicator species analysis (ISA; Dufrene and Legendre, 1997) to identify the fish species that were indicative of each period.

Long-term changes in seasonal fish assemblage dynamics in an adventitious desert stream

Hartley and Mark Brideau, state fisheries biologists, used fish stunners to survey the stream, a survey that turned up a variety of fish species, including black-nosed dace, a coldwater indicator species, but no trout.

Trout restoration pays off in Oxford stream; Eggs produce fish population in coldwater environment

Butterflies are a key indicator species of the health of our environment - if they are struggling, other species are struggling also," says Sir David.

A safety net for butterflies; With a growing number of species now in danger of extinction, gardeners are being urged to join the Big Butterfly Count to help assess the state of our wildlife