Results 91 to 100 of about 2,102 (256)

Invasive goldfish trigger a regime shift in experimental lake ecosystems of varying trophic state

Journal of Animal Ecology, EarlyView.
The pet trade distributes exotic animals around the globe that enrich human lives. However, some pets become pests when released into the wild. This study provides experimental evidence that goldfish will negatively affect native freshwater organisms and ecosystems.
William D. Hintz, Hannah Barrett, Rick A. Relyea   +2 more
wiley   +1 more source

Consistent Choice of Prey Source Habitat Across Diverse Landscapes by a Selective Insectivorous Bat

Integrative Zoology, EarlyView.
After analyzing the diet of the greater horseshoe bats in three distinct colonies, we identified significant spatial and temporal differences, particularly noting a stronger reliance on riparian habitats in Mediterranean areas. The species exhibits great ecological adaptability with strong plasticity in prey source habitats, shifting preferences among ...
Miren Aldasoro, Oihane Diaz de Cerio, Danilo Russo, Nerea Vallejo, Lander Olasagasti, Inazio Garin, Urtzi Goiti, Joxerra Aihartza   +7 more
wiley   +1 more source

Numerical Investigation of Local Scour Around Bridge Pile-Group Foundations Under Steady Flows

Infrastructures
Local scour around pile-group foundations is a predominant cause of hydraulic instability in bridge engineering. This study employs a fully coupled three-dimensional computational fluid dynamics model to investigate local scour around a 2 × 2 inline pile
Wentao Li, Xiangdong Wang, Zhixun Wang, Qianmi Yu, Peng Huang, Yilin Yang, Jinzhao Li   +6 more
doaj   +1 more source

Divergence Linked to Possible Ecological Speciation in Blind Mole Rats: Integration of Thermal Biology and Bite Force in the Upper Galilee Blind Mole Rat (Nannospalax galili)

Integrative Zoology, EarlyView.
Basalt‐dwelling blind mole rats maintain lower body temperatures, show greater post‐digging thermal increases, and dig more efficiently than those from rendzina soils. Although metabolic rates and bite force did not differ between populations, these thermal and physiological shifts align with the greater mechanical resistance and seasonal hypoxia of ...
Matěj Lövy, Jan Okrouhlík, František Vejmělka, Pavlína Schwarzová, Maja Rendulić, Eviatar Nevo, Radim Šumbera   +6 more
wiley   +1 more source

Impact of armour layer on the depth of scour hole around side-by-side bridge piers under ice-covered flow condition

Journal of Hydrology and Hydromechanics, 2019
In the present study, experiments were conducted in a large-scale flume to investigate the issue of local scour around side-by-side bridge piers under both ice-covered and open flow conditions.
Namaee Mohammad Reza, Sui Jueyi
doaj   +1 more source

Burrow Persistence and Spatial Distribution of Federally and State‐Protected Gopher Tortoise (Gopherus polyphemus) Populations in Southwest Alabama

Animal Conservation, EarlyView.
The gopher tortoise (Gopherus polyphemus), a keystone species and ecosystem engineer, has declined by ~80% over the past century due to primarily habitat loss. In a 28‐year resurvey of federally protected Mobile County and state‐protected Baldwin County, we found tortoise populations persisted at ~59% and ~31% of sites, respectively, with significant ...
Robin B. Lloyd Jr., Jeremiah A. Henning, Steven R. Schultze, David H. Nelson, Adam D. Chupp   +4 more
wiley   +1 more source

Facilitators, Barriers and Reported Implementation Outcomes of Wide‐Awake Local Anaesthesia No Tourniquet in Hand Surgery Practice: A Systematic Scoping Review

ANZ Journal of Surgery, EarlyView.
ABSTRACT Background Wide‐Awake Local Anaesthesia No Tourniquet (WALANT) is increasingly being used by hand surgeons. This systematic scoping review aims to identify and collate existing evidence on the reported implementation outcomes, barriers, facilitators and implementation strategies relevant to WALANT in hand surgery practice. Methods A systematic
Freya Roberts, Ali Gholamrezaei, Brett McClelland, Dion Sandoz, Tanya Burgess   +4 more
wiley   +1 more source

Influence of scour depth and flow velocity field on large-diameter pier group pile foundations

Frontiers in Marine Science
Sea-crossing bridges face critical challenges due to scour, which can destabilize foundations. This study investigates the scour characteristics of the large-diameter main pier of the Haiwen Bridge, with a pile diameter of 4.3 meters. Seabed changes were
Junfeng Shi, Changhai Han, Huijuan Guo, Kaiwen Yu, Kang Han   +4 more
doaj   +1 more source

Experimental investigation of scour downstream of a type A trapezoidal piano key weir under free and submerged flow conditions

Journal of Hydrology and Hydromechanics
In this paper, the scour downstream of a trapezoidal Piano key weir (PKW) is investigated under free and submerged flow conditions. For this purpose, an experimental model was used in a laboratory channel with a length of 10 m, width of 0.75 m, and ...
Bodaghi Elnaz, Abdi-Chooplou Chonoor, Ghodsian Masoud   +2 more
doaj   +1 more source

Predicting Bridge Pier Scour Depth With Svm

, 2015
{"references": ["G. W. Parker, L. Bratton, and, D. S. Armstrong, \"Stream stability and\nscour assessments at bridges in Massachusetts,\" U.S. Geological Survey\nOpen File Report No. 97-588 (CD-ROM), Massachusetts Highway Dept.\nBridge Section, Marlborough, Mass., Rep. .53, 1997.", "D. M. Sheppard, B. Melville, and H.
openaire   +1 more source