Results 71 to 80 of about 23,140 (218)

Larix sibirica Ledeb. f. candelabriformis L. V. Orlova, V. V. Byalt et G. A. Firsov, forma nova – a new form of Siberian larch from St. Petersburg

open access: yesHortus Botanicus
A new for science form of Siberian larch Larix sibirica Ledeb. f. candelabriformis L. V. Orlova, V. V. Byalt et G. A. Firsov was found in plantings on the Smolenka river embankment at St. Petersburg.
Orlova Larisa Vladimirovna   +2 more
doaj   +1 more source

Bridging a biogeographic 'gap' : microfossil evidence for the quillwort Isoetes on the Cumberland Plain west of Sydney during the early Colonial period [PDF]

open access: yes, 2013
Fossil spores preserved on historical archaeological sites at Parramatta and Richmond indicate that two or more species of the quillwort genus Isoetes (family Isoetaceae) were growing along rivers on the Cumberland Plain, west of Sydney, during the late ...
Casey, Mary, Macphail, Mike
core  

The oldest Pinus and its preservation by fire [PDF]

open access: yes, 2016
Pinus (Pinaceae) is a diverse conifer genus that dominates Northern Hemisphere forests today and is noteworthy for its fire-adapted traits. Here we describe the oldest known fossils attributable to the genus from the Lower Cretaceous (Valanginian, ca ...
Collinson, Margaret   +2 more
core   +1 more source

Do topical repellents divert mosquitoes within a community? Health equity implications of topical repellents as a mosquito bite prevention tool. [PDF]

open access: yes, 2013
OBJECTIVES: Repellents do not kill mosquitoes--they simply reduce human-vector contact. Thus it is possible that individuals who do not use repellents but dwell close to repellent users experience more bites than otherwise.
DC Chavasse   +22 more
core   +9 more sources

Differences in characteristics between naturalized threatened plants and other threatened plants

open access: yesConservation Biology, EarlyView.
Abstract Many non‐native plant species introduced by humans have become naturalized. At the same time many species are threatened in their native range. However, the number of plant species threatened in their native range that are naturalized elsewhere remains unknown.
Weihan Zhao   +10 more
wiley   +1 more source

Susceptibility of Several Northeastern Conifers to Fusarium circinatum and Strategies for Biocontrol [PDF]

open access: yes, 2017
Producción CientíficaFusarium circinatum, the causal of pine pitch canker disease (PPC), is now considered among the most important pathogens of Pinaceae in the world.
Chira, Danut   +5 more
core   +2 more sources

Shrubs and trees as natural insect protection for grazing animals in Switzerland and the alpine region: A systematic review of in vitro, in vivo and clinical trials Sträucher und Bäume als natürlicher Insektenschutz für Weidetiere in der Schweiz und im Alpenraum: Eine systematische Literaturübersicht über in vitro‐, in vivo‐ und klinische Studien

open access: yesMedical and Veterinary Entomology, EarlyView.
Biting or irritating insects are a threat to the health and welfare of grazing animals. This systematic review reveals that several shrubs and bushes growing in the alpine area have insecticidal, insect‐repellent and/or attractant properties. The alder Alnus glutinosa, juniper Juniperus communis, spruce Picea abies and walnut Juglans regia are ...
Theresa Schlittenlacher   +3 more
wiley   +1 more source

The complete chloroplast genome sequence of Pinus cembra L. (Pinaceae)

open access: yesMitochondrial DNA. Part B. Resources, 2019
The Swiss pine (Pinus cembra) is a montane tree in Central Europe and, therefore, known for its hardiness against severe winter colds. The seeds are harvested and eaten as pine nuts.
Thomas Schott   +3 more
doaj   +1 more source

First European interception of the brown fir longhorn beetle, Callidiellum villosulum (Fairmaire, 1900) (Coleoptera, Cerambycidae) [PDF]

open access: yes, 2013
A specimen of the brown fir longhorn beetle, Callidiellum villosulum villosulum found in Malta represents the first record of this invasive species for Europe.
Cocquempot, Christian, Mifsud, David
core  

Swiss ethnoveterinary knowledge on medicinal plants - a within-country comparison of Italian speaking regions with north-western German speaking regions [PDF]

open access: yes, 2017
BACKGROUND: Ethnoveterinary knowledge in Europe may play an important role as a basis for sustainable treatment options for livestock. Aims of our study were (a) to compare the ethnoveterinary practices of two culturally and sociodemographically ...
Amorena, M.   +8 more
core   +1 more source

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