Results 41 to 50 of about 5,785 (205)

Estimating red deer Cervus elaphus population density using drones in a steep and rugged terrain

open access: yesWildlife Biology, EarlyView.
Precise and accurate information about population density, crucial for wildlife management, is difficult to obtain for elusive species living in dense forests or steep and inaccessible terrain. Using unmanned aerial vehicles (UAVs), we developed a method for obtaining absolute population estimates of ungulates living in steep, rugged, and partly ...
Julie Bommerlund   +3 more
wiley   +1 more source

Síntomas de deficiencia de nutrimentos en aliso (Alnus acuminata H.B.K.) Nutrient defficiency symptoms in Alnus scuminete H.B.K

open access: yesAgronomía Colombiana, 1990
Empleando la técnica de cultivos hidropónicos y utilizando la soluclón Hoagland se estableció la sintomatología causada por la deficiencia de los macronutrientes (nitrógeno, fósforo, azufre, potasio, magnesio, calcio, hierro) y micronutrientes en ...
Tovar G. Olga Constanza   +1 more
doaj  

Melampsoridium hiratsukanum – invasive rust species in Lithuania, and its co-occurrence with eriophylid mite

open access: yesActa Mycologica, 2013
An invasive East Asian rust fungus Melampsoridium hiratsukanum, obligate biotroph belonging to Pucciniastraceae, Pucciniales (Basidiomycota) is found widely spread on leaves of Alnus incana in eastern, central and southern parts of Lithuania.
Svetlana Markovskaja
doaj   +1 more source

The relative abundance of crop and natural food influences crop consumption by brown bears

open access: yesWildlife Biology, EarlyView.
Many mammalian species now inhabit anthropogenic landscapes, and human–wildlife conflicts, particularly pertaining to crop damage, have become a significant issue. To develop more effective measures to limit crop damage caused by wildlife, it is crucial to identify how natural and anthropogenic food availability affect crop use by wildlife in the ...
Naoki Kanasugi   +10 more
wiley   +1 more source

Alnus

open access: yes, 1956
Published as part of Becherer, 1956, Florae Vallesiacae Supplementum, pp.
openaire   +2 more sources

Climatic conditions, landscape, and habitat quality drive patch occupancy and larval density of a threatened mire butterfly

open access: yesInsect Science, EarlyView.
The Moorland Clouded Yellow (Colias palaeno) benefited from cattle grazing in three different ways by (i) fostering the nectar supply; (ii) enhancing rejuvenation of the host plant (Vaccinium uliginosum); and (iii) improving microclimatic conditions for successful development of the immature stages.
Florian Fumy   +3 more
wiley   +1 more source

Comparative phylogenies and host specialization in the alder ectomycorrhizal fungi Alnicola, Alpova and Lactarius (Basidiomycota) in Europe

open access: yesBMC Evolutionary Biology, 2011
Background Mycorrhizal fungi form intimate associations with their host plants that constitute their carbon resource and habitat. Alnus spp. (Betulaceae) are known to host an exceptional species-poor and specialized ectomycorrhizal (ECM) fungal community
Manzi Sophie   +3 more
doaj   +1 more source

Introgression of Alnus serrulata and Alnus rugosa [Betulaceae]

open access: yes, 1961
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
openaire   +2 more sources

Environmental drivers influencing the ambrosia beetle community: The primary role of geographic and climatic drivers in chestnut‐growing areas

open access: yesAgricultural and Forest Entomology, EarlyView.
Ethanol‐baited traps were placed in cultivated chestnut orchards (a) and mixed environments with assorted tree composition (b), over a 2‐year monitoring period in two valleys (NW Italy). A total of 118,286 ambrosia beetles was collected, representing six species.
Eleonora Vittoria Fontana   +1 more
wiley   +1 more source

Triterpenoids and Sterols from the Stem of Burk

open access: yesNatural Product Communications, 2006
The chemical constituents of the stem of Alnus formosana Burk. were investigated and sixteen known compounds, composed of eleven triterpenoids and five sterols, were isolated and characterized from the n-hexane- and chloroform-soluble fractions of the ...
Chien-Kuang Chen   +4 more
doaj   +1 more source

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