scholarly journals Early detection of forest stress from European spruce bark beetle attack, and a new vegetation index: Normalized distance red & SWIR (NDRS)

2021 ◽  
Vol 255 ◽  
pp. 112240
Author(s):  
Langning Huo ◽  
Henrik Jan Persson ◽  
Eva Lindberg
Keyword(s):  
Early Detection ◽  
Bark Beetle ◽  
Vegetation Index ◽  
Spruce Bark Beetle ◽  
Spruce Bark ◽  
European Spruce Bark Beetle

scholarly journals Investigating the Correlation between Multisource Remote Sensing Data for Predicting Potential Spread of Ips typographus L. Spots in Healthy Trees

2021 ◽  
Vol 13 (23) ◽  
pp. 4953
Author(s):  
Azadeh Abdollahnejad ◽  
Dimitrios Panagiotidis ◽  
Peter Surový ◽  
Roman Modlinger
Keyword(s):  
Remote Sensing ◽  
Health Status ◽  
Early Detection ◽  
Bark Beetle ◽  
Remote Sensing Data ◽  
Ips Typographus ◽  
Sensing Data ◽  
Spruce Bark Beetle ◽  
Spruce Bark ◽  
European Spruce Bark Beetle

In the last decade, thousands of hectares of forests have been lost in the Czech Republic, primarily related to European spruce bark beetle (Ips typographus L.), while more than 50% of the remaining Czech forests are in great danger, thus posing severe threats to the resilience, stability, and functionality of those forests. The role of remote sensing in monitoring dynamic structural changes caused by pests is essential to understand and sustainably manage these forests. This study hypothesized a possible correlation between tree health status and multisource time series remote sensing data using different processed layers to predict the potential spread of attack by European spruce bark beetle in healthy trees. For this purpose, we used WorldView-2, Pléiades 1B, and SPOT-6 images for the period of April to September from 2018 to 2020; unmanned aerial vehicle (UAV) imagery data were also collected for use as a reference data source. Our results revealed that spectral resolution is crucial for the early detection of infestation. We observed a significant difference in the reflectance of different health statuses, which can lead to the early detection of infestation as much as two years in advance. More specifically, several bands from two different satellites in 2018 perfectly predicted the health status classes from 2020. This method could be used to evaluate health status classes in the early stage of infestation over large forested areas, which would provide a better understanding of the current situation and information for decision making and planning for the future.

The first study on the bacterial flora of the european spruce bark beetle, Dendroctonus micans (Coleoptera: Scolytidae)

Biologia ◽  
2006 ◽  
Vol 61 (6) ◽  
Author(s):  
Hüseyin Yilmax ◽  
Kazım Sezen ◽  
Hatice Kati ◽  
Zihni Demirbağ
Keyword(s):  
Bark Beetle ◽  
Micrococcus Luteus ◽  
Bacterial Flora ◽  
Biochemical Properties ◽  
Identification System ◽  
Dendroctonus Micans ◽  
Microbial Identification ◽  
Spruce Bark Beetle ◽  
Spruce Bark ◽  
European Spruce Bark Beetle

AbstractThe European spruce bark beetle, Dendroctonus micans Kugelann (Coleoptera, Scolytidae), is one of the most serious pests of oriental spruce (Picea orientalis L.) in Turkey. In this study, we investigated bacterial flora of D. micans collected from different populations of the forests of Eastern Black Sea Region of Turkey from 2002 to 2004. Seven different bacteria were isolated from healthy, diseased and dead specimens based on the color of colony and morphology. According to morphological, physiological and biochemical properties, metobolic enyzme profile by BIOLOG microtiter plate system, and total cellular fatty acid profile by Microbial Identification System (MIS), isolates were identified as Micrococcus luteus, Bacillus thuringiensis subsp. morrisoni, Serratia grimesii, Enterobacter cloaceae, Enterobacter intermedius, Streptococcus sp. and Pseudomonas putida. This is the first study on the bacterial flora of D. micans.

scholarly journals Small beetle, large-scale drivers: how regional and landscape factors affect outbreaks of the European spruce bark beetle

2015 ◽  
Vol 53 (2) ◽  
pp. 530-540 ◽  
Author(s):  
Rupert Seidl ◽  
Jörg Müller ◽  
Torsten Hothorn ◽  
Claus Bässler ◽  
Marco Heurich ◽  
...  
Keyword(s):  
Bark Beetle ◽  
Large Scale ◽  
Spruce Bark Beetle ◽  
Spruce Bark ◽  
Landscape Factors ◽  
European Spruce Bark Beetle

Choice or constraint: Plasticity in overwintering sites of the European spruce bark beetle

2014 ◽  
Vol 328 ◽  
pp. 20-25 ◽  
Author(s):  
Kai Dworschak ◽  
Daniel Meyer ◽  
Axel Gruppe ◽  
Reinhard Schopf
Keyword(s):  
Bark Beetle ◽  
Spruce Bark Beetle ◽  
Spruce Bark ◽  
European Spruce Bark Beetle

scholarly journals Is it possible and necessary to control European spruce bark beetle Ips typographus (L.) outbreak in the Białowieża Forest?

2017 ◽  
Vol 78 (1) ◽  
pp. 88-92 ◽  
Author(s):  
Jacek Hilszczański ◽  
Jerzy R. Starzyk
Keyword(s):  
Bark Beetle ◽  
Ips Typographus ◽  
Natural Forests ◽  
Forest Research ◽  
Research Papers ◽  
Spruce Bark Beetle ◽  
Białowieża Forest ◽  
Spruce Bark ◽  
European Spruce Bark Beetle

Abstract In response to the information published in ‘Forest Research Papers’ (vol. 77(4), 2016), regarding the problem of the European spruce bark beetle Ips typographus (L.) in the Białowieża Forest, we present our viewpoint on this issue. The role of the European spruce bark beetle in the Białowieża Forest is discussed based on the experience gained in Europe’s forests. We present the effects of I. typographus outbreaks on forest biodiversity as well as outbreak mitigation in the context of the processes taking place in semi-natural forests.

scholarly journals The Effect of Sanitation Felling on the Spread of the European Spruce Bark Beetle—An Individual-Based Modeling Approach

2021 ◽  
Vol 4 ◽  
Author(s):  
Bruno Walter Pietzsch ◽  
Felix Johannes Peter ◽  
Uta Berger
Keyword(s):  
Bark Beetle ◽  
Dispersion Model ◽  
Managed Forests ◽  
Managed Forest ◽  
Spruce Bark Beetle ◽  
Spruce Bark ◽  
Management Measures ◽  
Infestation Pattern ◽  
The Impact ◽  
European Spruce Bark Beetle

Sanitation felling is considered as the main measure to protect managed forests from damage due to outbreaks of the European Spruce Bark Beetle. In this study, we investigate the effectiveness of sanitation felling on stopping the spread of a bark beetle population from an un-managed to a managed forest area. For this, we advance an individual-based dispersion model of Ips typographus by adding the influence of wind on the beetle dispersion and by importing GIS data to simulate real world forests. To validate the new model version and to find reasonable parameter values, we conduct simulation experiments to reproduce infestation patterns that occurred in 2015, 2016, and 2017 within the national park Saxon Switzerland, Germany. With the then calibrated model IPS-SPREADS (Infestation Pattern Simulation Supporting PREdisposition Assessment DetailS), we investigate the impact of different factors such as the distance between beetle source trees and the forest border on the amount of damage within the managed forest stand and test the effectiveness of different levels of sanitation felling and its point of action on reducing the amount of damaged trees. As expected, the results of the model calibration show that the direction of wind plays an important role for the occurring infestation patterns and that bark beetle energy reserve is reduced during mass outbreaks. The results of the second experiment show that the main drivers for the amount of damaged trees are the primary attractiveness and the distance to beetle source trees. Sanitation felling effectiveness is highest when performed near the beetle source trees, with considerably high felling intensities and if there is at least some distance to the managed forest. IPS-SPREADS can be used in future studies as a tool for testing further management measures (e.g., pheromone traps) or to assess the risk for bark beetle infestations of forest areas near to wind-felled or already infested trees.

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