2003
DOI: 10.14214/sf.504
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Modeling mortality of individual trees in drained peatland sites in Finland

Abstract: Multilevel logistic regression models were constructed to predict the 5-year mortality of Scots pine (Pinus sylvestris L.) and pubescent birch (Betula pubescens Ehrh.) growing in drained peatland stands in northern and central Finland. Data concerning tree mortality were obtained from two successive measurements of the National Forest Inventory-based permanent sample plot data base covering pure and mixed stands of Scots pine and pubescent birch. In the modeling data, Scots pine showed an average observed mort… Show more

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Cited by 44 publications
(55 citation statements)
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“…Drobyshev et al (2009) found a significant and consistent association between tree condition and the probability of mortality, and significantly higher mortality rates in smaller trees of oak. The same variables as those finally included in the mortality model for Quercus pyrenaica have also been identified for others species: inverse of diameter at breast height (Bravo-Oviedo et al, 2006;Jutras et al, 2003;Karlsson and Norell, 2005); and individual height-dominant height ratio (Avila and Burkhart, 1992).…”
Section: Discussionmentioning
confidence: 99%
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“…Drobyshev et al (2009) found a significant and consistent association between tree condition and the probability of mortality, and significantly higher mortality rates in smaller trees of oak. The same variables as those finally included in the mortality model for Quercus pyrenaica have also been identified for others species: inverse of diameter at breast height (Bravo-Oviedo et al, 2006;Jutras et al, 2003;Karlsson and Norell, 2005); and individual height-dominant height ratio (Avila and Burkhart, 1992).…”
Section: Discussionmentioning
confidence: 99%
“…The model specification was made according to the structure laid down by Jutras et al (2003). The distribution for the response is y i j ∼ Bin π i j , 1 , where y i j is the observed response of tree i in plot j and π i j is the corresponding response probability.…”
Section: Multilevel Model With Binary Responsementioning
confidence: 99%
“…[25,55]). Because catastrophic mortality is not clearly related to stand or site features, it is often difficult to distinguish this type of mortality with traditional logistic models.…”
Section: Discussionmentioning
confidence: 99%
“…Severe inter-tree competition gradually decreases the growth of individual trees and eventually leads to the death of some individuals [25]. The mixture of species and the structural complexity in northern hardwood stands make mortality modeling even more complex, because shade tolerance and life cycles differ among species.…”
Section: Introductionmentioning
confidence: 99%
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