scholarly journals Patchiness of macrobenthic invertebrates in homogenized intertidal habitats: hidden spatial structure at a landscape scale

2009 ◽  
Vol 383 ◽  
pp. 211-224 ◽  
Author(s):  
C Kraan ◽  
J van der Meer ◽  
A Dekinga ◽  
T Piersma
Keyword(s):  
Spatial Structure ◽  
Landscape Scale ◽  
Intertidal Habitats

Applying Landscape-Scale Habitat-Potential Models to Understand Deer Spatial Structure and Movement Patterns

2007 ◽  
Vol 71 (3) ◽  
pp. 804-810 ◽  
Author(s):  
ALEXANDRA B. FELIX ◽  
DANIEL P. WALSH ◽  
BRANDI D. HUGHEY ◽  
HENRY CAMPA ◽  
SCOTT R. WINTERSTEIN
Keyword(s):  
Spatial Structure ◽  
Movement Patterns ◽  
Landscape Scale ◽  
Potential Models

scholarly journals Landscape structure and dispersal rate drive large scale catastrophic shifts in spatially explicit metapopulations

2021 ◽  
Author(s):  
Camille Saade ◽  
Emanuel A. Fronhofer ◽  
Benoit Pichon ◽  
Sonia Kefi
Keyword(s):  
Spatial Structure ◽  
Landscape Structure ◽  
Large Scale ◽  
Landscape Scale ◽  
Spatially Explicit ◽  
Dispersal Rate ◽  
Dendritic Networks ◽  
Different Types ◽  
Catastrophic Shifts

Even when environments deteriorate gradually, ecosystems may shift abruptly from one state to another. Such catastrophic shifts are difficult to predict and reverse (hysteresis). While well studied in simplified contexts, we lack a general understanding of how catastrophic shifts spread in realistic spatial contexts. For different types of landscape structure, including typical terrestrial modular and riverine dendritic networks, we here investigate landscape-scale stability in metapopulations made of bistable patches. We find that such metapopulations usually exhibit large scale catastrophic shifts and hysteresis, and that the properties of these shifts depend strongly on metapopulation spatial structure and dispersal rate: intermediate dispersal rates and a riverine spatial structure can largely reduce hysteresis size. Interestingly, our study suggests that large-scale restoration is easier with spatially clustered restoration efforts and in populations characterized by an intermediate dispersal rate.

scholarly journals Spatial structure of roe deer populations: towards defining management units at a landscape scale

2006 ◽  
Vol 43 (6) ◽  
pp. 1087-1097 ◽  
Author(s):  
AUDREY ZANNÈSE ◽  
NICOLAS MORELLET ◽  
CHIARA TARGHETTA ◽  
AURÉLIE COULON ◽  
SIMONETTA FUSER ◽  
...  
Keyword(s):  
Spatial Structure ◽  
Roe Deer ◽  
Landscape Scale ◽  
Management Units

Observations of the spatial structure of interstellar hydrogen

1967 ◽  
Vol 31 ◽  
pp. 45-46
Author(s):  
Carl Heiles
Keyword(s):  
High Resolution ◽  
Spatial Structure ◽  
Velocity Dispersion ◽  
Temperature Variations

High-resolution 21-cm line observations in a region aroundlII= 120°,b11= +15°, have revealed four types of structure in the interstellar hydrogen: a smooth background, large sheets of density 2 atoms cm-3, clouds occurring mostly in groups, and ‘Cloudlets’ of a few solar masses and a few parsecs in size; the velocity dispersion in the Cloudlets is only 1 km/sec. Strong temperature variations in the gas are in evidence.

Results of Spatial Structure of Atmosphere Radiation in a Spectral Range (1.5–2) µm Research

2018 ◽  
pp. 7-13
Author(s):  
Anton M. Mishchenko ◽  
Sergei S. Rachkovsky ◽  
Vladimir A. Smolin ◽  
Igor V . Yakimenko
Keyword(s):  
Spatial Structure ◽  
Unmanned Aerial Vehicle ◽  
Wavelength Range ◽  
Spectral Range ◽  
Near Ir ◽  
Optoelectronic Systems ◽  
Aerial Vehicle

Results of experimental studying radiation spatial structure of atmosphere background nonuniformities and of an unmanned aerial vehicle being the detection object are presented. The question on a possibility of its detection using optoelectronic systems against the background of a cloudy field in the near IR wavelength range is also considered.

Landscape-Scale Restoration of the Longleaf Pine Ecosystem

1998 ◽  
Vol 16 (1) ◽  
pp. 41-45
Author(s):  
Rhett Johnson ◽  
Dean Gjerstad
Keyword(s):  
Longleaf Pine ◽  
Landscape Scale
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