Results 71 to 80 of about 10,359 (162)

Phylogeny of subtribe Gonolobinae (Apocynaceae‐Asclepiadoideae) based on molecular and morphological data with a revised generic classification

open access: yesTAXON, Volume 75, Issue 2, April 2026.
Abstract The presently most densely sampled molecular phylogeny of the widespread New World subtribe Gonolobinae is presented, including about 35% of the ca. 520 species. Sampling focused on an even representation of the three main areas of total Gonolobinae distribution, South America, Central/North America, and the West Indian Islands, and the ...
Sigrid Liede‐Schumann   +4 more
wiley   +1 more source

A Generic Spinup Procedure to Initialize European Forest State Variables in Land Surface Models

open access: yesJournal of Advances in Modeling Earth Systems, Volume 18, Issue 4, April 2026.
Abstract Forest structure is shaped by forest management practices, land‐use changes, and natural disturbances, including droughts, fires, storms, and insect outbreaks that drive species‐specific and size‐specific mortality. By modifying the carbon‐water‐energy exchanges with the atmosphere, it influences a stand's capacity to buffer against or succumb
Marine Remaud   +6 more
wiley   +1 more source

Draft pest risk assessment report on the small spruce bark beetle, Ips amitinus

open access: yes, 2008
The current report is a background for a Pest Risk Assessment (PRA) of the bark beetle species Ips amitinus in the PRA area of Norway, following the International Standards for Phytosanitary Measures ISPM 11 (FAO 2004). The report is based on updated information about distribution, pathogenicity and ecological information, which add to a previous PRA ...
Økland, Bjørn, Skarpaas, Olav
openaire   +1 more source

Silver fir seed viability varies with age, fir‐associated forest cover and abiotic conditions of seed harvest stands across Austria

open access: yesJournal of Applied Ecology, Volume 63, Issue 4, April 2026.
As climate change, habitat loss and fragmentation intensify, seed‐sourcing strategies should explicitly incorporate ecological filters when selecting stands for seed harvest to safeguard seed viability and genetic diversity for nursery production. Seed stand management should be refocused on promoting structural conditions that enhance reproductive ...
Jerneja Harmel   +6 more
wiley   +1 more source

Insect Pests of Christmas Trees [PDF]

open access: yes, 1979
PDF pages ...
Miller, Richard L., Roach, Ken
core  

A male-produced aggregation-sex pheromone of the beetle Arhopalus rusticus (Coleoptera: Cerambycidae, Spondylinae) may be useful in managing this invasive species. [PDF]

open access: yes, 2019
The longhorned beetle Arhopalus rusticus (Coleoptera: Cerambycidae, Spondylinae) is a common species in conifer forests of the Northern Hemisphere, but with global trade, it has invaded and become established in New Zealand, Australia, and South America.
McElfresh, J Steven   +4 more
core   +2 more sources

Patogeni žuželk s poudarkom na patogenih podlubniih (COL., Scolytidae: Ips typographus L.) : preliminarni rezultati o izolaciji entomopatogenih gliv iz dveh smrekovih podlubnikov v Sloveniji [PDF]

open access: yes, 2017
This paper deals with the most important groups of insect pathogens, i.e. viruses, bacteria, fungi, nematodes and protozoans (microsporidia). We describe their basic characteristics, virulence, method of infecting or attackon the host, signs of illnesses
Jurc, Maja
core  

The mites (Acari) associated with bark beetles in the Koli National Park in Finland [PDF]

open access: yes, 2013
International audienceThirty-three taxa associated with Ips typographus were identified, of which fifteen species were phoretic. The most abundant species were Insectolaelaps quadrisetus (Mesostigmata), Siculobata lentonycha (Oribata), Diapterobates ...
Moser, J.C., Penttinen, R., Viiri, H.
core   +3 more sources

Working Paper 31: Climate Change Impacts on Bark Beetle Outbreaks and the Impact of Outbreaks on Subsequent Fires. [PDF]

open access: yes, 2014
The Insect Bark beetles are small insects that can have profound impacts on forests. While some species of bark beetles primarily attack trees that are recently dead or dying, others attack live, vigorous trees and can cause tree mortality across ...
Gaylord, M.L.
core  

分子系統と形態に基づくGrosmannia piceiperda complexの分類学的研究 [PDF]

open access: yes, 2016
この博士論文は内容の要約のみの公開(または一部非公開)になっています筑波大学 (University of Tsukuba ...
ANDO Yuho, 安藤 裕萌
core  

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