Results 141 to 150 of about 140,854 (338)

Conservation status of species used in the UK herbal medicine industry

PLANTS, PEOPLE, PLANET, EarlyView.
Given the ongoing biodiversity crisis, sustainable use and management of medicinal plants is critical. We assessed the conservation status, threats and conservation actions of 298 species sold by UK suppliers to medical herbalists. We found that most species used are unevaluated, representing a gap in conservation knowledge, and of those with ...
Isabella Flowers, Jon C. Lovett, Christopher Hassall   +2 more
wiley   +1 more source

Ecophysiology and phylogeny of new terricolous and epiphytic chlorolichens in a fog oasis of the Atacama Desert

MicrobiologyOpen, 2019
The Atacama Desert is one of the driest and probably oldest deserts on Earth where only a few extremophile organisms are able to survive. This study investigated two terricolous and two epiphytic lichens from the fog oasis “Las Lomitas” within the ...
Patrick Jung, Dina Emrich, Laura Briegel‐Williams, Michael Schermer, Lena Weber, Karen Baumann, Claudia Colesie, Philippe Clerc, Lukas W. Lehnert, Sebastian Achilles, Jörg Bendix, Burkhard Büdel   +11 more
doaj   +1 more source

New species or interesting records of foliicolous lichens : 7., Calenia flava (Ostropales: Gomphillaceae) [PDF]

, 2000
Calenia flava spec. nova from Papua New Guinea is described and illustrated. The new species is closely related to C. phyllogena but differs in the larger apothecia with yellow disc and the abundance of sterile thallus ...
Lücking, Robert, Sipman, Harrie J. M., Sérusiaux, Emmanuël   +2 more
core  

Toxicity of aqueous extracts of Ilex paraguariensis A.St.‐Hil. about Euphorbia heterophylla L.

Pest Management Science, EarlyView.
Aqueous extracts of Ilex paraguariensis A.St.‐Hil. strongly inhibit Euphorbia heterophylla L. germination and early seedling growth, but show mild phytotoxicity on mature plants, paradoxically promoting biomass via antioxidants. Abstract BACKGROUND The escalating challenge of herbicide‐resistant weeds, exemplified by Euphorbia heterophylla L.
Tamara Alberton da Silva, Ikram Bashir, Ana Caroline Giacomin, Jéssica Adriane Barth, Marina Chiapperin, Fabieli Zanotelli de Oliveira, Camila Thaís Scheibler, Fernanda Bruxel, Elisete Maria de Freitas   +8 more
wiley   +1 more source

Comparative patterns of winter habitat use by muskoxen and caribou in northern Alaska [PDF]

, 1992
Thesis (M.S.) University of Alaska Fairbanks, 1992Snow depth and hardness strongly influenced selection of feeding zones, (i.e., those areas used for foraging), in late winter by both muskoxen (Ovibos moschatus) and caribou (Rangifer tarandus grand) in ...
Biddlecomb, Mark Edward
core  

Classification of tree species and standing dead trees in Boreal forests using UAV‐based RGB, multispectral, and LiDAR point clouds

Remote Sensing in Ecology and Conservation, EarlyView.
We evaluated single‐ and multi‐sensor UAV approaches for classifying tree species and standing dead trees in boreal forests, focusing on key biodiversity indicators such as European aspen. Using spectral and structural features extracted from RGB, multispectral (MSP), and LiDAR point clouds for 1,205 field‐measured trees, we compared classification ...
Anton Kuzmin, Lauri Korhonen, Topi Tanhuanpää, Mikko Kukkonen, Matti Maltamo, Timo Kumpula   +5 more
wiley   +1 more source

An improved phylogeny and revised taxonomy of Catillariaceae (Lecanoromycetes, Ascomycota)

TAXON, EarlyView.
Abstract The boundaries of the family Catillariaceae have largely remained untested through phylogenetic methods. Recent studies have led to the transfer of several genera previously classified in Catillariaceae to the newly described family Leprocaulaceae. Despite these changes, the distinction between Catillariaceae, Leprocaulaceae, and Catinariaceae
Måns Svensson, Stefan Ekman, Martin Westberg   +2 more
wiley   +1 more source

Project Chariot - Phase III: Progress Report [PDF]

, 1960
This is a preliminary report and is NOT FOR PUBLICATIONBotanical investigations of the Cape Thompson - Ogotoruk Creek region of northwest Alaska were initiated in May, 1959 by the University of Alaska under contract with the United States Atomic ...
Johnson, R.E., Melchior, H.R., Viereck, L.A.   +2 more
core  

Phylogeny, species delimitation and machine learning bridge the gap between DNA sequences and morphology in the lichen genus Arctomia (Arctomiaceae, Ascomycota)

TAXON, EarlyView.
Abstract This study investigates species boundaries in the lichen genus Arctomia (Arctomiaceae, Ascomycota) using an integrative approach combining molecular phylogenetics, full Bayesian population delimitation, heuristic and model‐based species delimitation, and supervised machine learning applied to morphological data.
Stefan Ekman, Måns Svensson, Martin Westberg   +2 more
wiley   +1 more source

Allelopathic effect of the Cladonia verticillaris lichen extracts and fumarprotocetraric acid on the early growth of germinated seedlings in Allium cepa L. [PDF]

, 1999
The allelopathic activity of the different type of Cladonia verticillaris lichen extracts and fumarprotocetraric acid on the early growth of A. cepa (IPA 6) germinated seedlings depends on their chemical composition and concentration, respectively.
Vicente, Carlos, Xavier- Filho, L., Yano-Melo, Adriana M.   +2 more
core