نتایج جستجو برای: physiognomic

تعداد نتایج: 169  

2017
Anders Bryn Kerstin Potthoff

Background Georeferenced tree- and forest line data has a wide range of applications and are increasingly used for e.g. monitoring of climate change impacts and range shift modelling. As part of a research project, registrations of previously re-mapped tree- and forest lines have been georeferenced. The data described in this paper contains 100 re-mapped registrations of Betula pubescens subsp....

Journal: :Global Ecology and Conservation 2021

Agricultural expansion is the primary cause of forest loss and fragmentation. It threatens conservation its biodiversity as well capability to provide ecosystem services. Land-use policies, such zonation programs, have been traditionally used a tool for promoting sustainable natural resource management; however, we still lack standardized methodologies that can be applied world-widely achieve t...

Journal: :Revista de biologia tropical 2014
Gerardo Palacio-Aponte

Environmental changes due to natural processes and anthropic modifications can be characterized by the degree of land cover modification and its environmental implications over time. The main goal of the present study was to propose and apply a land cover modification geoindicator in order to assess the environmental condition of the territory per landscape units. It was designed to interpret d...

2012
Mario V. Balzan

Relatively little information is available on environmental associations and the conservation of Odonata in the Maltese Islands. Aquatic habitats are normally spatio-temporally restricted, often located within predominantly rural landscapes, and are thereby susceptible to farmland water management practices, which may create additional pressure on water resources. This study investigates how od...

2008
J. R. dos Santos F. G. Gonçalves José dos Campos

The objective of this study is to analyze the graphic representation of polarimetric signatures of airborne SAR-R99B data (L-band) in primary forest, secondary successions, forest with timber exploitation and those under recovery after a surface burning process. Additionally, another objective is an exploratory analysis of scattering mechanisms of forest typology in accordance with the alternat...

2010
Stefan A. Little Steven W. Kembel Peter Wilf

Present-day correlations between leaf physiognomic traits (shape and size) and climate are widely used to estimate paleoclimate using fossil floras. For example, leaf-margin analysis estimates paleotemperature using the modern relation of mean annual temperature (MAT) and the site-proportion of untoothed-leaf species (NT). This uniformitarian approach should provide accurate paleoclimate recons...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2011
Jerry F Franklin K Norman Johnson

M any natural landscapes have undergone dramatic permanent alterations as a result of human activities, including conversion to cultural landscapes; such changes are readily observed and understood. However, extensive ecological change can also occur in regional landscapes that are maintained in a seminatural state, changes that go largely unrecognized because the regional landscape retains an ...

2015
Valeria Biasi Paolo Bonaiuto Nazarena Patrizi James M. Levin

The influence of incongruity intolerance levels on people’s aesthetic preference of three categories of classic and modern artistic paintings was examined. The study uses pictures that trigger in the observer the amodal completion, which involves the application and confirmation of already consolidated mental schemata, or the perceptual contradiction, which highlights their non-confirmation, ge...

Journal: :Human brain mapping 2013
Zaifeng Gao Abraham Goldstein Yuval Harpaz Myriam Hansel Elana Zion-Golumbic Shlomo Bentin

EEG studies suggested that the N170 ERP and Gamma-band responses to faces reflect early and later stages of a multiple-level face-perception mechanism, respectively. However, these conclusions should be considered cautiously because EEG-recorded Gamma may be contaminated by noncephalic activity such as microsaccades. Moreover, EEG studies of Gamma cannot easily reveal its intracranial sources. ...

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