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A new methodology for compiling national Red Lists applied to butterflies (Lepidoptera, Rhopalocera) in Flanders (N-Belgium) and the Netherlands

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A new methodology for compiling national Red Lists applied to butterflies (Lepidoptera, Rhopalocera) in Flanders (N-Belgium) and the Netherlands. / Maes, Dirk; van Swaay, C. A. M.

In: Journal of insect conservation, Vol. 1, No. 2, 1997, p. 113-124.

Research output: Contribution to journalA1: Web of Science-article

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@article{b06455fdbcc3481da79da154dd6ef36f,
title = "A new methodology for compiling national Red Lists applied to butterflies (Lepidoptera, Rhopalocera) in Flanders (N-Belgium) and the Netherlands",
abstract = "The compilation of the Red Lists of butterflies in Flanders and the Netherlands was based on two criteria: a trend criterion (degree of decline) and a rarity criterion (actual distribution area). However, due to the large difference in mapping intensity in the two compared periods, a straightforward comparison of the number of grid cells in which each species was recorded, appeared inappropriate. To correct for mapping intensity we used reference species that are homogeneously distributed over the country, that have always been fairly common and that did not fluctuate in abundance too much during this century. For all resident species a relative presence in two compared periods was calculated, using the average number of grid cells in which these reference species were recorded as a correction factor. The use of a standardized method and well-defined quantitative criteria makes national Red Lists more objective and easier to re-evaluate in the future and facilitates the comparison of Red Lists among countries and among different organisms. The technique applied to correct for mapping intensity could be useful to other organisms when there is a large difference in mapping intensity between two periods.",
author = "Dirk Maes and {van Swaay}, {C. A. M}",
note = "Publication Authorstring : Maes, D.; van Swaay, C.A.M. Publication RefStringPartII : <i>Journal of insect conservation 1(2)</i>: 113-124. <a href={"}http://dx.doi.org/10.1023/A:1018491228082{"} target={"}_blank{"}>dx.doi.org/10.1023/A:1018491228082</a>",
year = "1997",
doi = "10.1023/A:1018491228082",
language = "English",
volume = "1",
pages = "113--124",
journal = "Journal of insect conservation",
issn = "1366-638X",
publisher = "Springer Netherlands",
number = "2",

}

RIS

TY - JOUR

T1 - A new methodology for compiling national Red Lists applied to butterflies (Lepidoptera, Rhopalocera) in Flanders (N-Belgium) and the Netherlands

AU - Maes, Dirk

AU - van Swaay, C. A. M

N1 - Publication Authorstring : Maes, D.; van Swaay, C.A.M. Publication RefStringPartII : <i>Journal of insect conservation 1(2)</i>: 113-124. <a href="http://dx.doi.org/10.1023/A:1018491228082" target="_blank">dx.doi.org/10.1023/A:1018491228082</a>

PY - 1997

Y1 - 1997

N2 - The compilation of the Red Lists of butterflies in Flanders and the Netherlands was based on two criteria: a trend criterion (degree of decline) and a rarity criterion (actual distribution area). However, due to the large difference in mapping intensity in the two compared periods, a straightforward comparison of the number of grid cells in which each species was recorded, appeared inappropriate. To correct for mapping intensity we used reference species that are homogeneously distributed over the country, that have always been fairly common and that did not fluctuate in abundance too much during this century. For all resident species a relative presence in two compared periods was calculated, using the average number of grid cells in which these reference species were recorded as a correction factor. The use of a standardized method and well-defined quantitative criteria makes national Red Lists more objective and easier to re-evaluate in the future and facilitates the comparison of Red Lists among countries and among different organisms. The technique applied to correct for mapping intensity could be useful to other organisms when there is a large difference in mapping intensity between two periods.

AB - The compilation of the Red Lists of butterflies in Flanders and the Netherlands was based on two criteria: a trend criterion (degree of decline) and a rarity criterion (actual distribution area). However, due to the large difference in mapping intensity in the two compared periods, a straightforward comparison of the number of grid cells in which each species was recorded, appeared inappropriate. To correct for mapping intensity we used reference species that are homogeneously distributed over the country, that have always been fairly common and that did not fluctuate in abundance too much during this century. For all resident species a relative presence in two compared periods was calculated, using the average number of grid cells in which these reference species were recorded as a correction factor. The use of a standardized method and well-defined quantitative criteria makes national Red Lists more objective and easier to re-evaluate in the future and facilitates the comparison of Red Lists among countries and among different organisms. The technique applied to correct for mapping intensity could be useful to other organisms when there is a large difference in mapping intensity between two periods.

U2 - 10.1023/A:1018491228082

DO - 10.1023/A:1018491228082

M3 - A1: Web of Science-article

VL - 1

SP - 113

EP - 124

JO - Journal of insect conservation

JF - Journal of insect conservation

SN - 1366-638X

IS - 2

ER -

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