Results 161 to 170 of about 1,330 (296)

Exploring the dynamics of flow attenuation at a beaver dam sequence. [PDF]

open access: yesHydrol Process, 2022
Graham HA   +4 more
europepmc   +1 more source

Hydraulic Measurements in a SAF Stilling Basin With a Stepped Chute for Embankment Protection

open access: yes
Stepped chutes have become commonplace in embankment dam rehabilitation projects due to project economy, constructability, and improved chute energy dissipation.
Crookston, B. M., Young, N.
core  

Hydrodynamic Forces on Tainter Gates and Stilling Basin: Old River Control Auxiliary Structure; Hydraulic Model Investigation

open access: yes, 1988
Source: https://erdc-library.erdc.dren.mil/jspui/Tests were conducted using a 1:50-scale section model to determine the magnitude and frequency of the hydrodynamic loads acting on the tainter gate trunnions and hoist cables, and the stilling basin apron ...
Fletcher, Bobby P., Grace, John L. Jr.
core  

From distant shores to an emerging island: the role of surface and subsurface transport in modeling seed dispersal

open access: yesEcography, EarlyView.
Long‐distance seed dispersal by ocean currents plays a critical role in structuring coastal plant communities. As direct observations of this phenomenon are infeasible, numerical modeling is a valuable tool. Here, we use Lagrangian particle tracking to examine the colonization of the newly forming island Norderoogsand (German Bight, Wadden Sea) by five
Jakob Rahner   +4 more
wiley   +1 more source

Model Analysis of Spillway and Stilling Basin of Porcupine Dam

open access: yes, 1961
Introduction: The Engineering Experiment Station at Utah State University was engaged by the Utah Water and Power Board to make a model analysis of the spillway and stilling basin of the Porcupine Dam.
Israelsen, C. Earl, Flammer, Gordon H.
core  

Macroecological relationships of ant diversity with increasing aridity in Australian tropical savannas: contrasting responses of epigaeic and hypogaeic assemblages

open access: yesEcography, EarlyView.
Studies using climatic gradients play a key role in our understanding of the importance of rainfall and temperature as factors regulating species diversity and distribution, and thus of likely responses to climate change. However, such studies currently consider above‐ground species only, ignoring the diverse hypogaeic (subterranean) invertebrate fauna.
François Brassard   +3 more
wiley   +1 more source

New climate regime restructures the ecology of Canada's Northern Great Lakes. [PDF]

open access: yesProc Natl Acad Sci U S A
Rühland KM   +4 more
europepmc   +1 more source

Incorporating sampling bias into ENM/SDM permutation tests: new methods and a case study on neotropical ants

open access: yesEcography, EarlyView.
Spatial sampling bias in occurrence data can generate spurious environmental associations in models of species distributions and ecological niches, and can also undermine inferences based on permutation tests made using these models. Geographic randomization tests are often used to generate distributions of expected behavior under the null hypothesis ...
Dan L. Warren   +4 more
wiley   +1 more source

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