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Statements

Subject Item
n2:RIV%2F61989592%3A15310%2F11%3A33119846%21RIV12-MSM-15310___
rdf:type
skos:Concept n15:Vysledek
dcterms:description
Changes in bird populations can be described as simple changes in abundance or density of individuals or, in larger areas, as changes of distribution or population indices. Although these measures describe different aspects of population change, they are often used interchangeably when discussing the relationships between various predictors of bird population changes found in different studies. This hampers a meaningful comparison of results, because it is unclear which differences between studies are biologically relevant and which are just methodological artifacts, caused by the different nature of measures used to quantify population changes. We compared predictors of the three measures of population changes: (i) change in abundance, (ii) change in magnitude of population trend and (iii) change in distribution, using data collected in a single region, the Czech Republic, and over similar time periods. We also aimed to identify significant drivers of population changes of Czech birds, using a large set of predictor variables and virtually all species regularly breeding in the region. Changes in bird populations can be described as simple changes in abundance or density of individuals or, in larger areas, as changes of distribution or population indices. Although these measures describe different aspects of population change, they are often used interchangeably when discussing the relationships between various predictors of bird population changes found in different studies. This hampers a meaningful comparison of results, because it is unclear which differences between studies are biologically relevant and which are just methodological artifacts, caused by the different nature of measures used to quantify population changes. We compared predictors of the three measures of population changes: (i) change in abundance, (ii) change in magnitude of population trend and (iii) change in distribution, using data collected in a single region, the Czech Republic, and over similar time periods. We also aimed to identify significant drivers of population changes of Czech birds, using a large set of predictor variables and virtually all species regularly breeding in the region.
dcterms:title
Differences between the predictors of abundance, trend and distributionas three measures of avian population change Differences between the predictors of abundance, trend and distributionas three measures of avian population change
skos:prefLabel
Differences between the predictors of abundance, trend and distributionas three measures of avian population change Differences between the predictors of abundance, trend and distributionas three measures of avian population change
skos:notation
RIV/61989592:15310/11:33119846!RIV12-MSM-15310___
n15:predkladatel
n16:orjk%3A15310
n3:aktivita
n8:Z
n3:aktivity
Z(MSM6198959212)
n3:cisloPeriodika
2
n3:dodaniDat
n6:2012
n3:domaciTvurceVysledku
n5:6545491 n5:9139915
n3:druhVysledku
n10:J
n3:duvernostUdaju
n7:S
n3:entitaPredkladatele
n19:predkladatel
n3:idSjednocenehoVysledku
194551
n3:idVysledku
RIV/61989592:15310/11:33119846
n3:jazykVysledku
n13:eng
n3:klicovaSlova
land-use change; population changes; population trend; distribution; abundance
n3:klicoveSlovo
n4:distribution n4:population%20changes n4:abundance n4:land-use%20change n4:population%20trend
n3:kodStatuVydavatele
PL - Polská republika
n3:kontrolniKodProRIV
[19572EFEEE09]
n3:nazevZdroje
Acta Ornithologica
n3:obor
n18:EG
n3:pocetDomacichTvurcuVysledku
2
n3:pocetTvurcuVysledku
2
n3:rokUplatneniVysledku
n6:2011
n3:svazekPeriodika
46
n3:tvurceVysledku
Reif, Jiří Koleček, Jaroslav
n3:zamer
n14:MSM6198959212
s:issn
0001-6454
s:numberOfPages
11
n12:doi
10.3161/000164511X625919
n17:organizacniJednotka
15310