Results 51 to 60 of about 691,780 (291)
Ecological Processes, 2018 Introduction Trees on agricultural landscape play a vital role in ecosystem services including food security that supports human livelihood. They can further offer synergy between adaptation and mitigation in addressing climate change impact ...
Yikunoamlak Gebrewahid +3 more
doaj +1 more source
Freezing tolerance in grasses along an altitudinal gradient in the Venezuelan Andes [PDF]
Oecologia, 2006 The tropical high Andes experience greater daily temperature oscillations compared to seasonal ones as well as a high frequency of night frost occurrence year round. Survival of organisms, under such environmental conditions, has been determined by selective forces which have evolved into adaptations including avoidance or tolerance to freezing.
Edjuly J, Márquez +2 more
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Functional responses in a lizard along a 3.5‐km altitudinal gradient
Journal of Biogeography, 2023 AbstractAimPhysiological and metabolic performance are key mediators of the functional response of species to environmental change. Few environments offer such a multifaceted array of stressors as high‐altitude habitats, which differ markedly in temperature, water availability, UV radiation and oxygen pressure compared to low‐altitude habitats. Species
Serén, Nina +7 more
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Advanced Materials, EarlyView.Stacked nanoflake assembly (SNA) membranes can oscillate autonomously, offering opportunities for soft actuation and energy harvesting. This work uncovers the physical mechanism behind the sustained oscillation of SNA membranes in gradient humidity and identifies three governing dimensionless parameters, enabling rational design for optimizing SNA ...
Zijing Zhang +5 more
wiley +1 more source
Spatial trends of Potamogetonaceae along an altitudinal gradient
Biologia, 2020 Studying the effect of altitude on species distribution may help us to predict the response of species to future climate changes, which will likely cause upward migration of vegetation zones. In this study, we aimed to analyze distribution and abundance patterns of Potamogetonaceae along an altitudinal gradient and to determine the species ...
Nursel İkinci, Necati Bayındır
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Composição florística e riqueza de Monilófitas e Licófitas ao longo de gradiente altitudinal no Parque Estadual da Serra do Tabuleiro, Santa Catarina, Brasil [PDF]
, 2014 TCC(graduação) - Universidade Federal de Santa Catarina. Centro de Ciências Biológicas. Biologia.O presente estudo teve como objetivo caracterizar e comparar a composição florística de monilófitas e licófitas ao longo de um gradiente de altitude em um ...
Carmes, Amanda Angélica
core
Macroinvertebrate assemblages of natural springs along an altitudinal gradient in the Bernese Alps, Switzerland [PDF]
, 2015 Alpine springs are sensitive ecotones which are inhabited by highly adapted organisms. Studies on how the species assemblages change vertically have not been conducted previously.
Wigger, Fabian William +7 more
core +1 more source
Collision‐Resilient Winged Drones Enabled by Tensegrity Structures
Advanced Robotics Research, EarlyView.Based on structures of birds such as the woodpeck, this article presents the collision‐resilient aerial robot, SWIFT. SWIFT leverages tensegrity structures in the fuselage and wings which allow it to undergo large deformations in a crash, without sustaining damage. Experiments show that SWIFT can reduce impact forces by 70% over conventional structures.
Omar Aloui +5 more
wiley +1 more source
The Altitudinal Gradient Influence on the Parameters of the Mountain Grasslands
Bulletin of University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca. Agriculture, 2012 The aim of the paper is to assess the influence of the altitudinal gradient on the quality and biodiversity of grasslands in the mountainous area Muntele Mic. We studied various types of grasslands found at different altitudes as 613, 1342 and 1562 m.
Ionel SAMFIRA +4 more
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Methane-cycling microorganisms in soils of a high-alpine altitudinal gradient [PDF]
FEMS Microbiology Ecology, 2016 Methanogens and methanotrophs play unique roles as producers and consumers of the greenhouse gas methane (CH4) in soils, respectively. Here, we aimed to reveal whether and to which extent methane-cyclers occur in high-alpine soils, and to assess their spatial distribution along an altitudinal gradient (2700-3500 m) in the Austrian Alps at sites located
Katrin, Hofmann +4 more
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