Fire, fungi, and beetle influences on a lodgepole pine ecosystem of south-central Oregon

Geiszler, D. R.; Gara, R. I.; Driver, Charles H.; Gallucci, Vincent F.; Martin, Robert E.

doi:10.1007/bf00540132

Cited by 67 publications

(50 citation statements)

References 7 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Geiszler et al (1980) and Gara et al (1985) concluded that fire-damaged lodgepole pine are more prone to certain fungal infections, and that these trees are more susceptible to mountain pine beetle infestation. Schowalter et al (1981) hypothesized a similar situation with the southern pine beetle in the coniferous forests of the southeast.…”

Section: The }mentioning

confidence: 99%

See 1 more Smart Citation

Parasites, Lightning, and the Vegetation Mosaic in Wilderness Landscapes

Knight¹

1987

Landscape Heterogeneity and Disturbance

View full text Add to dashboard Cite

Section: The }mentioning

confidence: 99%

“…5. An illustration of the fungus/bark beetle/fire interaction proposed by Geiszler et al (1980) and Gara et al (1985). …”

Section: The }mentioning

confidence: 99%

Parasites, Lightning, and the Vegetation Mosaic in Wilderness Landscapes

Knight¹

1987

Landscape Heterogeneity and Disturbance

View full text Add to dashboard Cite

“…are killed more frequently than smaller ones (Hopping and Beall 1948). Potential reasons for this pattern are that large trees may be preferentially attacked (Shepherd 1966;Geiszler et al 1980;Mitchell and Preisler 1991;Preisler 1993), provide a larger landing surface (Hynum and Berryman 1980), or have a larger basal area (Safranyik et al 1975;Burnell 1977;Coulson 1979). Large diameter trees usually have thick phloem providing high beetle reproduction potential (Amman 1969(Amman , 1972Katovich and Lavigne 1986;and Shrimpton and Thomson (1985) for specific situations when this is not the case).…”

Section: Introductionmentioning

confidence: 99%

Diameter of lodgepole pine and mortality caused by the mountain pine beetle: factors that influence their relationship and applicability for susceptibility rating

Björklund

Lindgren

2009

Can. J. For. Res.

View full text Add to dashboard Cite

During outbreaks the mountain pine beetle (Dendroctonus ponderosae Hopkins) kills large lodgepole pine trees (Pinus contorta Dougl. ex Loud.) more frequently than smaller ones. There is, however, considerable variation in the relation of diameter to incidence of attack. In a meta-analysis of published data we found that the relationship was primarily determined by geographic location (elevation, latitude, and longitude). We propose a new tree mortality measure, the probability of death index, defined as the average percentage of mortality for trees >23 cm. The index may improve the precision in predictive modeling of tree mortality, as it provides a biologically relevant measure of mortality, since it only includes trees that contribute to the growth of an epidemic and is not influenced by the number of trees within a diameter class. To be useful to forest managers, it must be possible to predict the index from stand parameters that are easily measured. The usefulness of the index was supported by a meta-analysis, which showed that 53% of the variation in the mortality index was explained by geographic location. Tree density did not explain any additional variation. Future research is needed to evaluate the performance of the probability of death index compared with that of other mortality measures.Résumé : Durant les épidémies, le dendroctone du pin ponderosa (Dendroctonus ponderosae Hopkins) tue plus souvent les grosses tiges de pin tordu (Pinus contorta Dougl. ex Loud.) que les plus petites. Cependant, la relation entre le diamètre et l'incidence des attaques varie énormément. Dans une méta-analyse des données publiées, nous avons découvert que la relation est principalement déterminée par la position géographique (altitude, latitude et longitude). Nous proposons une nouvelle mesure de mortalité des arbres : l'indice de probabilité de mortalité, définie comme étant le pourcentage moyen de mortalité des tiges de plus de 23 cm. L'indice peut améliorer la précision des modèles de prédiction de la mortalité des arbres parce qu'il fournit une mesure de la mortalité pertinente du point de vue biologique étant donné qu'il inclut uniquement les arbres qui contribuent à la croissance d'une épidémie et qu'il n'est pas influencé par le nombre d'arbres dans une classe de diamètre. Pour être utile aux aménagistes forestiers, l'indice doit pouvoir être prédit à partir de paramètres du peuplement qui sont facilement mesurables. L'utilité de l'indice est supportée par une méta-analyse qui montre que 53 % de la variation de l'indice de mortalité est expliquée par la position géographique. La densité des arbres n'explique aucune variation additionnelle. D'autres travaux seront nécessaires pour évaluer la performance de l'indice de probabilité de mortalité comparativement à d'autres mesures de la mortalité.[Traduit par la Rédaction]

show abstract

“…Swetnam and Betancourt 1992;Veblen et al 1999Veblen et al , 2000Heyerdahl et al 2002) or examined interactions among forest processes without incorporating climate variation (e.g. Geiszler et al 1980;Hadley and Veblen 1993;Veblen et al 1994). Other work has attempted to incorporate climate variation, fire, and insect outbreaks, but has yielded generally qualitative results or had difficulty sep- (Gedalof and Smith 2001).…”

Section: Discussionmentioning

confidence: 99%

“…Knight 1987;Anderson et al 1987;Hadley 1994), confounding our understanding of climate-disturbance relationships (e.g. Speer et al 2001;Dale et al 2001) and little previous research has examined the interrelationships of more than two of these processes (but see Geiszler et al 1980;Veblen et al 1994;Kramer et al 2001).…”

Section: Introductionmentioning

confidence: 99%

Decoupling Tree-Ring Signatures of Climate Variation, Fire, and Insect Outbreaks in Central Oregon

2006

View full text Add to dashboard Cite

Dendroecological methods play a critical role in developing our understanding of forest processes by contributing historical evidence of climate variability and the temporal characteristics of disturbance. We seek to contribute to these methods by developing a research protocol for decoupling radial-growth signatures related to climate, fire, and insect outbreaks in central Oregon. Our methods are based on three independent, crossdated tree-ring data sets: 1) a 545-year tree-ring climate reconstruction, 2) a 550-year fire history, and 3) a 250-year pandora moth outbreak history derived from host (Pinus ponderosa) and non-host (Abies grandis-Abies concolor) tree-ring chronologies. Based on these data, we use visual criteria (marker and signature rings), statistical comparisons, and Superposed Epoch Analysis (SEA) to identify the timing of growth anomalies and establish the temporal relationships between drought, climate variation (ENSO and PDO), fire events, and pandora moth (Coloradia pandora) outbreaks. Our results show pandora moth outbreaks generally coincide with periods of below-average moisture, whereas fire in central Oregon often follows a period of wetter than average conditions. Fire events in central Oregon appear to be related to shifts in hemispheric climate variability but the relationship between fire and pandora moth outbreaks remains unclear.

show abstract

Fire, fungi, and beetle influences on a lodgepole pine ecosystem of south-central Oregon

Cited by 67 publications

References 7 publications

Parasites, Lightning, and the Vegetation Mosaic in Wilderness Landscapes

Parasites, Lightning, and the Vegetation Mosaic in Wilderness Landscapes

Diameter of lodgepole pine and mortality caused by the mountain pine beetle: factors that influence their relationship and applicability for susceptibility rating

Decoupling Tree-Ring Signatures of Climate Variation, Fire, and Insect Outbreaks in Central Oregon

Contact Info

Product

Resources

About