Results 31 to 40 of about 40,853 (208)

Quantifying competition in white spruce (Picea glauca) plantations [PDF]

Annals of Forest Science, 2017
AbstractKey messageIn mixed forest plantations in sub-boreal forests with high levels of natural regeneration ingrowth, competition must be quantified differently for each species, with distant-independent indices working better for the planted species and distant-dependent indices for ingrown balsam fir. Although broadleaved competition hinders growth
Bérubé-Deschênes, Alexa, Franceschini, Tony, Schneider, Robert   +2 more
openaire   +1 more source

Combining QTL Mapping and Transcriptomics to Decipher the Genetic Architecture of Phenolic Compounds Metabolism in the Conifer White Spruce

Frontiers in Plant Science, 2021
Conifer forests worldwide are becoming increasingly vulnerable to the effects of climate change. Although the production of phenolic compounds (PCs) has been shown to be modulated by biotic and abiotic stresses, the genetic basis underlying the variation
Justine Laoué, Claire Depardieu, Claire Depardieu, Sébastien Gérardi, Manuel Lamothe, Claude Bomal, Aïda Azaiez, Marie-Claude Gros-Louis, Jérôme Laroche, Brian Boyle, Almuth Hammerbacher, Nathalie Isabel, Nathalie Isabel, Jean Bousquet   +13 more
doaj   +1 more source

Within‐tree spatial heterogeneity of sap flow velocities and wood properties and its effect on the uncertainty of tree level sap flux estimates

PLANTS, PEOPLE, PLANET, EarlyView.
As forests are important for biodiversity and recreation and provide vital resources globally, it is essential that their health can be accurately monitored, for example, by using sap flow probes to measure tree water uptake. We investigated whether sap flow measurements might differ at various locations within the same tree due to variation in wood ...
Stefan Seeger, Markus Weiler, Martin Maier   +2 more
wiley   +1 more source

Pest categorisation of Gilpinia hercyniae

EFSA Journal, 2017
The Panel on Plant Health performed a pest categorisation of the Diprionid sawfly, Gilpinia hercyniae Hartig (Hymenoptera: Diprionidae), for the EU. G.
EFSA Panel on Plant Health (PLH), Michael Jeger, Claude Bragard, David Caffier, Thierry Candresse, Elisavet Chatzivassiliou, Katharina Dehnen‐Schmutz, Gianni Gilioli, Josep Anton Jaques Miret, Alan MacLeod, Maria Navajas Navarro, Björn Niere, Stephen Parnell, Roel Potting, Trond Rafoss, Vittorio Rossi, Gregor Urek, Ariena Van Bruggen, Wopke Van der Werf, Jonathan West, Stephan Winter, Andrea Battisti, Virág Kertész, Mitesha Aukhojee, Jean‐Claude Grégoire   +24 more
doaj   +1 more source

Forest and fire drive moose (deníe) detections near their northern range limit

Wildlife Biology, EarlyView.
One way to understand species range shifts in response to anthropogenic climate change is to study populations living at the limit of climate and resource suitability. Moose Alces alces (deníe in Dënesųłıné) generally require forest–wetland landscape complexes but are increasingly seen across the forest–tundra transition at their northern range limit ...
Claudia A. Haas, Nick W. Luymes, Rosemary Hohnen, Frances E. C. Stewart   +3 more
wiley   +1 more source

Playing with fire: Wolf response to active wildfires, fire fronts and smoke

Journal of Animal Ecology, EarlyView.
This study is one of the first, to our knowledge, to explicitly examine fine‐scale behavioural responses of a large carnivore to actively burning wildfires, fire fronts and smoke. The study found that wolves balanced the potential risks and benefits associated with wildfires, with implications for predator–prey dynamics in fire‐prone regions.
Skylar Boucher, Katherine Wolfenden, Michael Bridger, Jesse Tigner   +3 more
wiley   +1 more source

Long-insert sequence capture detects high copy numbers in a defence-related beta-glucosidase gene βglu-1 with large variations in white spruce but not Norway spruce

BMC Genomics
Conifers are long-lived and slow-evolving, thus requiring effective defences against their fast-evolving insect natural enemies. The copy number variation (CNV) of two key acetophenone biosynthesis genes Ugt5/Ugt5b and βglu-1 may provide a plausible ...
Tin Hang Hung, Ernest T. Y. Wu, Pauls Zeltiņš, Āris Jansons, Aziz Ullah, Nadir Erbilgin, Joerg Bohlmann, Jean Bousquet, Inanc Birol, Sonya M. Clegg, John J. MacKay   +10 more
doaj   +1 more source

Rarity dendroecsotic plants of Pinophyta in the State Dendrological Park Trostjanets of the NAS of Ukraine

Інтродукція Рослин, 2015
The results of specific composition, geographical origin and viability of rarity plants of Pinophyta included in the world red lists and Red book of Ukraine, in the conditions of dendropark Trostjanets are shown.
V.A. Medvedev, O.O. Iljenko
doaj   +1 more source

Warm Spring Weather Alters Calling Phenology of Four Sympatric Early‐Breeding Anurans

Integrative Zoology, EarlyView.
An unusually warm March in 2024 (“false spring”) followed by freezing temperatures allowed us to assess the impact of a weather event on an amphibian community. The calling activity of all four species was associated with increasing temperature, and the first date of calling was advanced by 11–18 days.
Jeffrey P. Ethier, Nionta Habib, Marc J. Mazerolle, Vance L. Trudeau   +3 more
wiley   +1 more source

Large Planting Stock Type and Mechanical Release Effects on the Establishment Success of Picea glauca Plantations in Quebec, Canada

International Journal of Forestry Research, 2012
We established four experimental plantations to evaluate the main and interaction effects of timing (year of application) of mechanical release and stock type (containerized or bareroot) on the establishment success of large Picea glauca seedlings eight ...
Nelson Thiffault, Benoit Lafleur, Vincent Roy, Josianne DeBlois   +3 more
doaj   +1 more source