Results 71 to 80 of about 71,861 (264)

Determination of Ellenberg’s indicator values along an elevational gradient in Central Black Sea Region of Turkey [PDF]

open access: yes, 2013
The Central Black Sea Region has an unique vegetation because different vegetation types occurred. In the present study plant communities (from Mediterranean-type to temperate forests) in the Central Black Sea Region along an elevational gradient was ...
Kutbay, H.G., Surmen, B.
core  

High-resolution palynology reveals the land-use history of a Sami renvall in northern Sweden [PDF]

open access: yes, 2016
Acknowledgements: This research was funded by the Leverhulme Trust through the Footprints on the Edge of Thule project, and was written under the auspices of the ERC-funded project Arctic Domus.
Aronsson, Kjell-Åke   +3 more
core   +2 more sources

Landscape factors influencing predation on capercaillie nests by two competing mesopredators: pine marten and red fox

open access: yesWildlife Biology, EarlyView.
Predation by pine martens Martes martes and red foxes Vulpes vulpes is an important factor influencing the population dynamics of capercaillie Tetrao urogallus. However, there is a knowledge gap regarding the relative effects of these mesopredators on the reproductive success of capercaillie. To better understand how various landscape factors influence
Siow Yan Jennifer Angoh   +4 more
wiley   +1 more source

Fenología del anillo de crecimiento de Pinus uncinata Ramond y Pinus sylvestris L. en un gradiente altitudinal en los Pirineos Centrales

open access: yesPirineos: Revista de Ecología de Montaña, 1996
[es] En el presente trabajo, describimos el desarrollo y la estructura del anillo anual de crecimiento de Pinus uncinata Ramondy Pinus sylvestris L. en un gradiente altitudinal en los Pirineos centrales. Medimos mensualmente el aumento de la anchura del
J. Julio Camarero   +2 more
doaj   +1 more source

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

First report of an adelgid from Malta (Hemiptera, Aphidoidea, Adelgidae) [PDF]

open access: yes, 2012
In recent years, the aphid fauna of the Maltese Islands has received considerable attention. miFSud et al. (2011) reviewed earlier works on the subject and provided information on previously reported species and on several new records. An updated list of
Mifsud, David, Perez Hidalgo, Nicolas
core  

Genetic differentiation in Scottish populations of the pine beauty moth Panolis flammea (Lepidoptera: Noctuidae) [PDF]

open access: yes, 2005
Pine beauty moth, Panolis flammea (Denis & Schiffermüller), is a recent but persistent pest of lodgepole pine plantations in Scotland, but exists naturally at low levels within remnants and plantations of Scots pine.
A.D. Watt   +19 more
core   +2 more sources

Pollen quality of Pinus pallasiana D. Don and Pinus sylvestris L. from plantations of polluted lands in Krivorizhzhya

open access: yesІнтродукція Рослин, 2014
Pollen quality was investigated in four stands of Scots pine (Pinus sylvestris L.) and in four stands of Pinus pallasiana D. Don plantations. As ecologically safe territories we use 70-years plantation of P.
I.I. Korshikov   +3 more
doaj   +1 more source

A dog makes a difference: exploration of potential biases in moose‐hunting associated citizen science

open access: yesWildlife Biology, EarlyView.
The collection of citizen data is often employed to generate insights regarding species distribution, population sizes, and population structure; however, biases inherent in citizen science are seldom addressed. In this study, we examined the factors influencing hunters' observations of moose, Alces alces, during the moose hunting season in Finland. By
Tarmo Ketola   +8 more
wiley   +1 more source

Occurrence, morphology and growth of understory saplings in Swedish forests [PDF]

open access: yes, 2004
Growing demands for a multipurpose forestry leads to increased use of silvicultural systems that avoid clear-cutting. Regeneration in such systems is based on establishment and ingrowth of new seedlings under a more or less closed canopy.
Wikberg, Per-Erik
core  

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