Zobrazeno 1 - 8
of 8
pro vyhledávání: '"Olof Hedgren"'
Publikováno v:
Ecography. 37:797-804
Despite increasing awareness of the theoretical importance of habitat dynamics on metapopulations, only a few empirical studies have been conducted. We aimed to increase our understanding of how patch size, dynamics and connectivity affect colonizati
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7e608fa840426a3d697076464c8446ca
https://doi.org/10.1111/ecog.00475
https://doi.org/10.1111/ecog.00475
Autor:
Olof Hedgren, Jan Weslien
Publikováno v:
Conservation Biology. 22:212-215
Efficient sampling design in field studies is important for economical and statistical reasons. We compared two ways to distribute sampling effort over an area, either randomly or subjectively. We searched for red-listed saproxylic (wood-living) beet
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::992361e7a38129edf15f852c66a4776d
https://doi.org/10.1111/j.1523-1739.2007.00848.x
https://doi.org/10.1111/j.1523-1739.2007.00848.x
Autor:
Per Olof Hedgren
Publikováno v:
Forest Ecology and Management. 241:155-161
Stumps constitute a large wood resource in managed forests, but have generally been little studied in terms of insect biodiversity. Basic knowledge of the stump fauna is necessary to e.g. assess the value of other dead wood, such as high stumps creat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b183580be8ba4f8cfd2a89dacb632473
https://doi.org/10.1016/j.foreco.2007.01.020
https://doi.org/10.1016/j.foreco.2007.01.020
Publikováno v:
Forest Ecology and Management. 203:241-250
The spruce bark beetle Ips typographus is a severe insect pest on mature Norway Spruce. Under normal circumstances, the beetle reproduces in fallen trees, and also to some extent in standing living trees. Knowledge of its reproductive success in diff
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8e9e35c881b9fde6cb9087c6eadaf721
https://doi.org/10.1016/j.foreco.2004.07.055
https://doi.org/10.1016/j.foreco.2004.07.055
Publikováno v:
Agricultural and Forest Entomology. 5:67-74
1 To maintain biodiversity in managed spruce forests in Sweden more wind-felled trees must be retained. However, there is concern among forest owners that this may result in higher tree mortality caused by the spruce bark beetle, Ips typographus (L.)
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1217562435cd5fa9db5d3871ec4b7fb2
https://doi.org/10.1046/j.1461-9563.2003.00164.x
https://doi.org/10.1046/j.1461-9563.2003.00164.x
Publikováno v:
Scandinavian Journal of Forest Research. 18:39-44
The bark beetle Pityogenes chalcographus (L.) occasionally kills trees in young stands of Norway spruce Picea abies (L.) Karst. Suitable breeding material, e.g. piles of fresh logging waste, may potentially increase the risk of attacks on nearby stan
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::360a01ef893cfc9afc31a16b625e8e1e
https://doi.org/10.1080/02827581.2003.10383136
https://doi.org/10.1080/02827581.2003.10383136
Autor:
Olof, Hedgren, Jan, Weslien
Publikováno v:
Conservation biology : the journal of the Society for Conservation Biology. 22(1)
Efficient sampling design in field studies is important for economical and statistical reasons. We compared two ways to distribute sampling effort over an area, either randomly or subjectively. We searched for red-listed saproxylic (wood-living) beet
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::445fca571bdf8d2724f0c8a17174aa32
https://pubmed.ncbi.nlm.nih.gov/18273954
https://pubmed.ncbi.nlm.nih.gov/18273954
Autor:
Per Olof Hedgren
Publikováno v:
Scandinavian Journal of Forest Research. 18:1-1
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ff0b0a4ad0730e441b9fb7f9f795818a
https://doi.org/10.1080/02827580308618
https://doi.org/10.1080/02827580308618