Landscape-ecological trends of spatial changes in the bird communities of Central Siberia

2019 ◽  
Keyword(s):  
Bird Communities ◽  
Central Siberia ◽  
Spatial Changes ◽  
Landscape Ecological

Landscape–Ecological Trends of Spatial Changes in the Bird Communities of Central Siberia

2019 ◽  
Vol 12 (6) ◽  
pp. 515-523
Author(s):  
L. G. Vartapetov ◽  
A. A. Romanov ◽  
A. G. Larionov ◽  
N. N. Egorov ◽  
E. V. Shemyakin
Keyword(s):  
Bird Communities ◽  
Central Siberia ◽  
Spatial Changes ◽  
Landscape Ecological

scholarly journals Classification of Bird Communities of Central Siberia

2018 ◽  
Vol 25 ◽  
pp. 54-69
Author(s):  
L. G. Vartapetov ◽  
◽  
A. A. Romanov ◽  
E. V. Shemyakin ◽  
◽  
...  
Keyword(s):  
Bird Communities ◽  
Central Siberia

Landscape-ecological assessment of bird communities in the middle Aldan valley

2011 ◽  
Vol 38 (10) ◽  
pp. 1043-1049
Author(s):  
L. G. Vartapetov ◽  
N. N. Egorov ◽  
V. V. Okoneshnikov
Keyword(s):  
Ecological Assessment ◽  
Bird Communities ◽  
Landscape Ecological

Human Event-Related Potentials to Higher-Order Acoustic Spatial Changes

2002 ◽  
Vol 16 (2) ◽  
pp. 114-118 ◽  
Author(s):  
Timo Ruusuvirta ◽  
Heikki Hämäläinen
Keyword(s):  
Working Memory ◽  
Mismatch Negativity ◽  
Spatial Information ◽  
Free Field ◽  
Event Related Potentials ◽  
Negative Polarity ◽  
Positive Polarity ◽  
Spatial Changes ◽  
Related Potentials ◽  
Human Event

Abstract Human event-related potentials (ERPs) to a tone continuously alternating between its two spatial loci of origin (middle-standards, left-standards), to repetitions of left-standards (oddball-deviants), and to the tones originally representing these repetitions presented alone (alone-deviants) were recorded in free-field conditions. During the recordings (Fz, Cz, Pz, M1, and M2 referenced to nose), the subjects watched a silent movie. Oddball-deviants elicited a spatially diffuse two-peaked deflection of positive polarity. It differed from a deflection elicited by left-standards and commenced earlier than a prominent deflection of negative polarity (N1) elicited by alone-deviants. The results are discussed in the context of the mismatch negativity (MMN) and previous findings of dissociation between spatial and non-spatial information in auditory working memory.

Functional evenness of bird communities varies along the elevational gradient in Europe: Conservation implications

2019 ◽  
Author(s):  
Federico Morelli ◽  
Yanina
Keyword(s):  
Species Richness ◽  
Elevation Gradient ◽  
Bird Species ◽  
Elevational Gradient ◽  
Negative Association ◽  
Bird Communities ◽  
Breeding Bird ◽  
Bird Species Richness ◽  
Large Spatial Scale ◽  
Functional Evenness

ContextThe negative association between elevation and species richness is a well-recognized pattern in macro-ecology. ObjectivesThe aim of this study was to investigate changes in functional evenness of breeding bird communities along an elevation gradient in Europe. MethodsUsing the bird data from the EBCC Atlas of European Breeding Birds we estimated an index of functional evenness which can be assumed as a measure of the potential resilience of communities.ResultsOur findings confirm the existence of a negative association between elevation and bird species richness in all European eco regions. However, we also explored a novel aspect of this relationship, important for conservation: Our findings provide evidence at large spatial scale of a negative association between the functional evenness (potential community resilience) and elevation, independent of the eco region. We also found that the Natura2000 protected areas covers the territory most in need of protection, those characterized by bird communities with low potential resilience, in hilly and mountainous areas.ConclusionsThese results draw attention to European areas occupied by bird communities characterized by a potential lower capacity to respond to strong ecological changes, and, therefore, potentially more exposed to risks for conservation.

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