Results 61 to 70 of about 35,780 (302)

Evaluation of altitudinal distribution and population dynamics of introduced Brown trout (Salmo trutta) and native Snow trout (Schizothorax richardsonii) in river Asiganga, Uttarakhand (India)

Environment Conservation Journal, 2016
Mountains of Himalaya, with unique topology and geographical regions, are hotspots of biodiversity. Their flora and fauna have been investigated for abundance in species composition and interactions.
Madhu Thapliyal, Madhu Bartwal, Ashish Thapliyal   +2 more
doaj   +1 more source

Terrace reconstruction and long profile projection: a case study from the Solent river system near Southampton, England [PDF]

, 2012
River terrace sequences are important frameworks for archaeological evidence and as such it is important to produce robust correlations between what are often fragmentary remnants of ancient terraces.
Allen, Antoine, Ashton, Bailey, Banerjee, Bateman, Bateman, Bates, Bates, Bennett, Briant, Briant, Briant, Bridgland, Bridgland, Bridgland, Bridgland, Dade, Dale, Edwards, Francis F. Wenban-Smith, Gao, Gilbert D. Marshall, Harmar, Imbrie, Jain, Jean-Luc Schwenninger, Lake, Lewin, Martin R. Bates, Murray, Murray, Murray, Olley, Olley, Parks, Phillips, Prescott, Rebecca M. Briant, Rice, Shackley, Tebbens, Thrasher, Törnqvist, Veldkamp, Veldkamp, Veldkamp, Veldkamp, Velegrakis, Wallinga, Westaway, Westaway, White, Whiteman, Whiteman   +54 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, Raphael Zufferey, William Stewart, Mohammad Askari, Simon Jeger, Dario Floreano   +5 more
wiley   +1 more source

The BIOKLIM project: biodiversity research between climate change and wilding in a temperate montane forest : the conceptual framework [PDF]

, 2010
To understand the rapid rate of change in global biodiversity, it is necessary to analyse the present condition of ecosystems and to elucidate relationships of species to their environment. The BIOKLIM Project (Biodiversity and Climate Change Project) is
Bässler, Claus, Förster, Bernhard, Moning, Christoph, Müller, Jörg   +3 more
core  

Local adaptation with high gene flow: temperature parameters drive adaptation to altitude in the common frog (Rana temporaria) [PDF]

, 2014
Both environmental and genetic influences can result in phenotypic variation. Quantifying the relative contributions of local adaptation and phenotypic plasticity to phenotypes is key to understanding the effect of environmental variation on populations.
Biek, R., Mable, B.K., Muir, A.P., Thomas, R.   +3 more
core   +2 more sources

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, Teodor MARUSCA, Andreea GHICA, Marius BOLDEA, CUPINA Branko   +4 more
openaire   +2 more sources

Large‐Scale Genomics Reveals Three‐Source Ancestry and Layered Adaptation to High Altitude in Tibetan Chickens

Advanced Science, EarlyView.
Whole‐genome analysis of 1,054 chickens reveals three ancestral sources (NWC, SYA, and SHF) with distinct temporal entry patterns into the Tibetan Plateau. Route‐specific selection scans, calibrated against a demographic null, suggest complementary functional enrichments—vascular homeostasis (NWC), calcium signaling and cardiac adaptation (SYA), and ...
Zongyi Zhao, Ruixue Nie, Hailu Fan, Tenzin Ngodroup, Li Zhu, Hongbin Pan, Bo Zhang, Hao Zhang   +7 more
wiley   +1 more source

Biodiversity and Altitudinal Variation of Dung Beetles (Scarabaeidae: Scarabaeinae) in the Oglán Alto Watershed, Ecuadorian Amazon

Acta Zoológica Lilloana
Dung beetles are considered a useful taxon to describe and to monitor spatial and temporal patterns of biodiversity. Tropical communities of dung beetles are usually diverse, abundant, and habitat specific; they respond quickly to many types of ...
Freddy Gallo, William Romel Chamorro, Sandra Enríquez, Verónica Guasumba, Soraya Delgado, Pablo Araujo, Germán López- Iborra   +6 more
doaj   +1 more source

Introgressed Variation in TaMYB7‐A1 Drives Graded Dormancy and Climate‐Adaptive Pre‐Harvest Sprouting Resistance in Wheat

Advanced Science, EarlyView.
TaMYB7‐A1 directly activates TaABI5 to enhance ABA signaling and regulate ABA‐GA homeostasis, enforcing seed dormancy. Its superior allele, derived from wild einkorn introgression, harbors a MITE insertion that elevates expression and two amino acid substitutions that enhance transcriptional activity, collectively generating graded PHS resistance for ...
Hao Wang, Dongzhi Wang, Yafei Guo, Qi Zheng, Min Zhang, James Simmonds, Jian Hou, Xuemei Liu, Xuelei Lin, Xiaomin Bie, Xiansheng Zhang, Xiaohui Li, Yuan Chen, Xueyong Zhang, Cristobal Uauy, Fei Lu, Chengcai Chu, Zhixi Tian, Jun Xiao   +18 more
wiley   +1 more source

Evaluation of Phenological Cycles and Thermal Time of Apple Crop Growing at Different Altitudinal Gradients in North Western Himalayas

International Journal of Economic Plants, 2019
A field study was conducted in 2015 and 2016 to evaluate the phenological cycles and thermal time of apple crop of economic importance growing at different climate represented by varied altitudinal gradients in Himachal Pradesh, India.
Aditya, S. K. Bhardwaj, Sudhir Verma, Rakesh   +3 more
doaj