Results 61 to 70 of about 6,511 (162)

Taxonomic and functional patterns of arthropod succession after glacier retreat in the Dolomite Alps

open access: yesInsect Conservation and Diversity, EarlyView.
Arthropod succession after glacier retreat varied among species and forelands in the Dolomites Alps, with community composition shaped by glacier identity, time since deglaciation and local environmental conditions. Functional composition shifted from small, highly dispersive pioneer species to larger, less dispersive taxa, reflecting increasing ...
Ivan Petri   +13 more
wiley   +1 more source

Surface Reconstruction for Three-Dimensional Rockfall Volumetric Analysis

open access: yes, 2019
Laser scanning is routinely being used for the characterization and management of rockfall hazards. A key component of many studies is the ability to use the high-resolution topographic datasets for detailed volume estimates.
Hutchinson, D. Jean   +2 more
core   +1 more source

Fragmented Rockfall Volume Distribution from Photogrammetry-Based Structural Mapping and Discrete Fracture Networks

open access: yes, 2020
The design of rockfall protection structures requires information about the falling block volumes. Computational tools for rockfall trajectory simulation are now capable of modeling block fragmentation, requiring the fragmented volume-relative frequency ...
Gräpel, Chris   +2 more
core   +1 more source

Room to regenerate: microhabitats and the recruitment niche as drivers of mountain woodland restoration

open access: yesRestoration Ecology, EarlyView.
Abstract Introduction Natural regeneration is an efficient, minimal‐intervention approach essential for facilitating resilient, self‐sustaining ecosystems during woodland restoration. However, recruitment can be slow, uncertain, or highly restricted, particularly in mountain woodland systems where tree planting and large herbivore management are ...
Sarah H. Watts   +3 more
wiley   +1 more source

Experimental Study on the distance of rock falls under different influencing factors

open access: yes工程科学与技术, 2016
:Through the shaking table test, studied the distance of different shape and size rock falls under different peak acceleration seismic, sine wave frequency and slope shape, and cleared the influence of rock falls on the buildings at the slope foot.The ...
haoxiaomin
doaj  

A nonlinear model coupling rockfall and rainfall intensity based ewline on a four year measurement in a high Alpine rock wall (Reintal, German Alps) [PDF]

open access: yesNatural Hazards and Earth System Sciences, 2009
A total of more than 140 000 kg of small-magnitude rockfall deposits was measured in eight rockfall collectors of altogether 940 m<sup>2</sup> in size between 1999–2003 below a 400–600 m high rock face in the Reintal, German Alps ...
M. Krautblatter, M. Moser
doaj  

Disasters, Dictators, and Donors: The Impact of Foreign Aid on Economic Activity (Mis)Reporting

open access: yesReview of Development Economics, EarlyView.
ABSTRACT This paper examines how governments manipulate economic data to secure more foreign disaster aid. By using nighttime lighting as a reliable measure of economic activity, we make two key findings: (1) foreign disaster aid is positively linked to a country's understatement of its gross domestic product, indicating a deliberate strategy to ...
M. Martin Boyer   +2 more
wiley   +1 more source

Semi-Automatic Determination of Rockfall Trajectories

open access: yesSensors, 2014
In determining rockfall trajectories in the field, it is essential to calibrate and validate rockfall simulation software. This contribution presents an in situ device and a complementary Local Positioning System (LPS) that allow the determination of ...
Axel Volkwein, Johannes Klette
doaj   +1 more source

Resolving a debate over social freedom

open access: yesThe Southern Journal of Philosophy, EarlyView.
Abstract When I am unable to drive due to a road blockade, there seems to be a morally relevant difference between a case in which the road is blocked by workers and a case in which the road is blocked by a landslide. Many political philosophers tried to capture this pretheoretical judgment at a more abstract level through the formulation of a concept ...
Ilkin Huseynli
wiley   +1 more source

Significance of substrate soil moisture content for rockfall hazard assessment [PDF]

open access: yesNatural Hazards and Earth System Sciences, 2019
Rockfall modelling is an important tool for hazard analysis in steep terrain. Calibrating terrain parameters ensures that the model results more accurately represent the site-specific hazard. Parameterizing rockfall models is challenging because rockfall
L. M. Vick   +4 more
doaj   +1 more source

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