Results 91 to 100 of about 10,228 (225)
Contenido polínico de algunas plantas entomófilas ornamentales en la atmósfera de Salamanca [PDF]
XV lnternational A.P.L.E.
Rodríguez de la Cruz, D. +2 more
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Species composition of forests is a very important component from the point of view of nature conservation and forestry. We aimed to identify 10 tree species in a hilly forest stand using a hyperspectral aerial image with a particular focus on two ...
Szilárd Balázs Likó +4 more
doaj +1 more source
Ailanthus altissima: An invasive species in modern ecosystems [PDF]
Ailanthus altissima is an invasive woody species native to China and northern Vietnam, which has spread to all continents except Antarctica. Due to its rapid growth, intensive vegetative and generative reproduction, and resistance to unfavourable ...
Savić Aleksandra
doaj +1 more source
Nicodemia madagascariensis (Lam.) R. Parker (Family Scrophulariaceae), a casual alien plant new to Italy [PDF]
In this note the authors report the first case of naturalization of the Malagasy smoke bush within Italian territory. Along with a description of the abiotic and biotic characteristics of the invaded site, the current demographic and dynamic trends of ...
BADALAMENTI, Emilio +3 more
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THE attraction of hive-bees to the flowers of the Tree of Heaven, recorded by Dr. R. Melville in Nature recently1, has also been noted by me in Oxford. On July 14, 1944, I was awakened at dawn by a continuous high-pitched whining hum, like that of a dynamo, in the tall trees outside this Museum, and found it to be caused by thousands of Apis mellifica ...
openaire +1 more source
Impact of Independent and Sequential Feeding of Different Host Plants on Economic Traits of Eri Silkworm, Philosamia ricini Hutt [PDF]
The study was undertaken to evaluate the morpho-economic triats of eri silkworm, Philosamia ricini Hutt by feeding different host plants leaves. Healthy leaves of Castor (Ricinus communis L), Tapioca (Manihot esculenta Crantz), Wild Castor (Jatropha ...
Munirajappa, ., Venu, N.
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Monitoring der Auswirkungen einer Umstellung auf den biologischen Landbau (MUBIL II). Abschlussbericht [PDF]
Since 2003, a long-term field monitoring of the development of Organic Farming has been performed at the bio-farm “Rutzendorf“ in the Marchfeld region east of Vienna. The overall project focus includes three topics: (1) effects of organic farming on soil
Freyer, Bernhard +3 more
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Col·laboració a l'estudi de les plantes invasores del Parc Natural de l'Alt Pirineu : cartografia de detall i recull de mesures de gestió [PDF]
La intrusió de les plantes exòtiques invasores en els espais naturals protegits de Catalunya s'ha convertit en un problema de primer ordre. En alguns d'aquests espais fa temps que s'han començat a gestionar aquestes espècies exòtiques.
Fernández Gil, Joan +3 more
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(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
openaire +2 more sources
A New Canthinone-Type Alkaloid Isolated from Ailanthus altissima Swingle
The present investigation of the chemical constituents of the stem barks of Ailanthus altissima has resulted in the isolation of six canthinone-type alkaloids, including a new compound, (R)-5-(1-hydroxyethyl)-canthine-6-one (1), and five known compounds (
Hye Mi Kim +7 more
doaj +1 more source

