Results 161 to 170 of about 1,723 (258)

Vortex mechanisms of local scour at model fishrocks

open access: yes, 1991
ISBN 0-913235-72-5In a laboratory flume, geometrically different model fishrocks were used to induce scour. Fishrocks are defined as boulders placed in streams to improve fish habitat.
Cullen, R T
core  

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)

open access: yesIntegrative 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   +6 more
wiley   +1 more source

Spatial Patterns of Avian Stable Isotopes Reveal Ecological Impacts of Climate and Land‐Use Change

open access: yesIntegrative Zoology, EarlyView.
Increased feather δ15N values with pasture coverage reveal an elevated baseline δ15N in grazing landscapes, while broader isotopic niches in farmland habitats reflect agricultural expansion's significant influence on resource use patterns of the avian community.
Yaohong Jia   +5 more
wiley   +1 more source

Study on oscillation effect of wind power pile foundation on local scour. [PDF]

open access: yesSci Rep
Zhao Z   +7 more
europepmc   +1 more source

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

open access: yesAnimal 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.   +4 more
wiley   +1 more source

The Mutable Original: How Chinese Counterfeits Become Nigerian Originals in African Markets

open access: yesAmerican Anthropologist, EarlyView.
ABSTRACT Affordable Chinese copies of Western brands are ubiquitous in African markets. Despite democratizing consumer access, these goods appear to cement hegemonic value hierarchies that rank Chinese or local products as inferior to Western goods.
Jing Jing Liu
wiley   +1 more source

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