Results 41 to 50 of about 801 (188)

Spatial distribution of saproxylic beetles on trunks of standing Scots pine trees

Agricultural and Forest Entomology, Volume 25, Issue 4, Page 601-611, November 2023., 2023
Abstract The spatial distribution of saproxylic beetles landing and climbing stems of 12 grown and healthy Scots pine trees (Pinus sylvestris L.) was examined in detail during a 3‐year trial. The beetles were sampled using sticky traps attached to the tree trunk at three tree parts (i.e., the trunk base, middle part of the trunk, and trunk in crown ...
J. Foit, V. Čermák, T. Kudláček
wiley   +1 more source

Climate‐driven tree growth and mortality in the Black Forest, Germany—Long‐term observations

Global Change Biology, Volume 29, Issue 20, Page 5908-5923, October 2023., 2023
This study describes climate‐driven tree mortality and tree growth in the Black Forest mountain range in Germany. It is based on a 68‐year consistent data series describing the annual mortality of all trees growing in a forest area of almost 250 thousand ha. The climatic water balance is identified as the main driver of mortality and tree growth.
Heinrich Spiecker, Hans‐Peter Kahle
wiley   +1 more source

Addressing a century‐old hypothesis – do pioneer beetles of Ips typographus use volatile cues to find suitable host trees?

New Phytologist, Volume 238, Issue 5, Page 1762-1770, June 2023., 2023
Summary Global warming and more frequent climate extremes have caused bark beetle outbreaks of unprecedented scale of these insects in many conifer forests world‐wide. Conifers that have been weakened by drought and heat or damaged by storms are highly susceptible to bark beetle infestation.
Linda M. A. Lehmanski, Dineshkumar Kandasamy, Martin N. Andersson, Sigrid Netherer, Eliane Gomes Alves, Jianbei Huang, Henrik Hartmann   +6 more
wiley   +1 more source

Symbiosis and pathogenicity of Geosmithia and Talaromyces spp. associated with the cypress bark beetles Phloeosinus spp. and their parasitoids

Environmental Microbiology, Volume 24, Issue 8, Page 3369-3389, August 2022., 2022
Summary Fungi associated with cypress bark beetles are practically unknown in the Eastern Mediterranean. Our study focused on the fungi associated with the body parts and galleries of two indigenous cypress bark beetles, Phloeosinus armatus and P. bicolor, sampled from Cupressus sempervirens trees in different regions in Israel. Arbitrarily primed PCR,
Vineet Meshram, Gunjan Sharma, Marcel Maymon, Alex Protasov, Zvi Mendel, Stanley Freeman   +5 more
wiley   +1 more source

Lost in dead wood? Environmental DNA sequencing from dead wood shows little signs of saproxylic beetles

Environmental DNA, Volume 4, Issue 3, Page 654-660, May 2022., 2022
The needs for alternative methods for monitoring arthropods are increasing. We here tested eDNA metabarcoding for saproxylic beetles in dead wood. While a few samples showed traces of beetle DNA, the method needs to be improved. Our study makes a first step in developing a thorough protocol for approved application.
Nathalie Winiger, Sebastian Seibold, Kay Lucek, Jörg Müller, Gernot Segelbacher   +4 more
wiley   +1 more source

Mutually inclusive mechanisms of drought‐induced tree mortality

Global Change Biology, Volume 28, Issue 10, Page 3365-3378, May 2022., 2022
A better understanding of the mechanisms driving drought‐induced tree mortality is necessary to improve predictions of forest responses to climate extremes. We use data from a tree diversity experiment to model the individual mortality risk of 9435 young trees from 12 temperate tree species, one third of which died following a severe drought in 2018 ...
Peter Hajek, Roman M. Link, Charles A. Nock, Jürgen Bauhus, Tobias Gebauer, Arthur Gessler, Kyle Kovach, Christian Messier, Alain Paquette, Matthias Saurer, Michael Scherer‐Lorenzen, Laura Rose, Bernhard Schuldt   +12 more
wiley   +1 more source

Tree diversity reduces the risk of bark beetle infestation for preferred conifer species, but increases the risk for less preferred hosts

Journal of Ecology, Volume 109, Issue 7, Page 2649-2661, July 2021., 2021
Increasing tree diversity may reduce the risk of bark beetle infestation for genera prone to high infestation rates (Picea and Larix), but risk for less preferred genera (Pinus, and to some extent the exotic tree species) may increase with tree diversity due to spillover from preferred hosts.
Sylvie Berthelot, Tobias Frühbrodt, Peter Hajek, Charles A. Nock, Carsten F. Dormann, Jürgen Bauhus, Jochen Fründ   +6 more
wiley   +1 more source

Cambioxylophagous fauna developing on logging residues of blue spruce (Picea pungens Engelmann)

Journal of Forest Science, 2011
Cutting down 20- to 30-years-old trees of blue spruce (Picea pungens Engelm.) (October, May) and cross-cutting them to sections of different volume (0.5-75 dm3) under conditions of half-shade × open area resulted in a potential food offer for ...
E. Kula, R. Kajfosz, J. Polívka
doaj   +1 more source

Host tree and insect genetic diversity on the borderline of natural distribution: a case study of Picea abies and Pityogenes chalcographus (Coleoptera, Scolytinae) in Greece

Silva Fennica, 2011
Picea abies (L.) Karst. and Pityogenes chalcographus constitute a commonly observed host tree–insect association in Eurasia, with the natural distribution of the bark beetle overlapping that of Norway spruce.
Avtzis, D., Aravanopoulos, F.
doaj   +1 more source

Exploitation of kairomones and synomones by Medetera spp. (Diptera: Dolichopodidae), predators of spruce bark beetles

European Journal of Entomology, 2005
The semiochemical relationships in a predator-prey-host plant system were studied by a series of multiple-choice field assays. The studied system included predatory flies of the genus Medetera (Diptera: Dolichopodidae), the bark beetles Ips typographus ...
Jiri HULCR, Marc POLLET, Karel UBIK, Jan VRKOČ   +3 more
doaj   +1 more source