| Autor: |
Adriaens, Tim, San Martin y Gomez, Gilles, Bogaert, Johan, Crevecoeur, Luc, Beuckx, Jean-Pierre, Lock, Koen, Jonckheere, Kurt, Maes, Dirk |
| Jazyk: |
Dutch; Flemish |
| Rok vydání: |
2014 |
| Předmět: |
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| Zdroj: |
Adriaens, T, San Martin y Gomez, G, Bogaert, J, Crevecoeur, L, Beuckx, J-P, Lock, K, Jonckheere, K & Maes, D 2014, ' Rode Lijst van de lieveheersbeestjes in Vlaanderen : kansen voor een betere bescherming en een aangepast natuurbeheer ' Natuur.Focus, vol. 13, nr. 3, blz. 118-128 . |
| Popis: |
Red Lists assess the extinction risk of species and are an importanttool to prioritise species conservation and management measures.Worldwide, quantitative IUCN criteria are used to estimate the threatstatus of species at the regional level. In Flanders (north Belgium),about 70.000 distribution records of ladybirds were collected in 36%of all the grid cells (1 x 1 km²) since 1990 during a large-scale citizen-science project. Applying the IUCN criteria to the 36 resident‘conspicuous’ ladybirds in Flanders resulted in two Regionally extinctspecies, three Endangered species and six Vulnerable species. A furtherseven species were considered Near threatened and the remaining15 species (39%) were assessed as Least concern. Three species wereclassified as Data deficient. Using the Red List status, we delineatedladybird hotspots which turn out to be located mainly in grid cellswith large areas of Natura2000 sites. The ladybird dataset from Flandersprovides evidence that IUCN Red List criteria can be applied tothis charismatic, but relatively under-surveyed insect group. For calculatinga distribution trend, we advocate the use of a high grid cellresolution (e.g., 1 x 1 km² or 5 x 5 km²). For estimating the geographicrange, the use of extent of occurrence (EOO) instead of area ofoccupancy (AOO) is advisable when the survey coverage is relativelylow. We discuss the opportunities of the availability of a ladybird RedList for regional conservation measures. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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