Ecological factors determining the density-distribution of Central European dragonflies (Odonata)

Title:

Ecological factors determining the density-distribution of Central European dragonflies (Odonata)

Creator:

Harabiš, Filip and Dolný, Aleš

Identifier:

https://cdk.lib.cas.cz/client/handle/uuid:6ef694e9-1637-4072-a0b5-31174fee9645
uuid:6ef694e9-1637-4072-a0b5-31174fee9645

Subject:

Habitat specificity, niche breath, Odonata, relative distribution, and dragonflies

Type:

article, model:article, and TEXT

Description:

Habitat specificity is the most important factor affecting the regional distribution of dragonflies. Nevertheless, species with the highest specificity are not always the scarcest. Several important determinants of dragonfly density-distribution relationships were identified. Altitude preference and altitude range are significantly associated with dragonfly distribution. Some of the species that are habitat specialists but occur over a wide range of altitudes should be classified as rare but not endangered. This very simple principle is based on the assumption that habitat specialists have a very limited number of suitable biotopes. Obviously, dragonflies with a marginal distribution prefer a narrow range of altitudes (especially in terms of temperature limitation) and biotopes (effect of biogeography, marginality). Surprisingly, there is no "critical" life stage that is significantly associated with the regional distribution of dragonflies, although most species spend most time in the larval stage. Knowledge of the dispersal ability of particular species is limited, although it could significantly affect species survival and distribution.

Language:

English

Rights:

http://creativecommons.org/publicdomain/mark/1.0/
policy:public

Source:

European Journal of Entomology | 2010 Volume:107 | Number:4

Harvested from:

CDK

Metadata only:

false