Results 231 to 240 of about 113,237 (299)

Gradient in grammatical structure of indigenous languages reflects pathway of human expansion in the Americas. [PDF]

Sci Rep
Urban M, Naranjo MG.
europepmc   +1 more source

How Sediment Supply, Sea‐Level, and Glacial Isostatic Oscillations Drive Alluvial River Long‐Profile Evolution and Terrace Formation

AGU Advances, Volume 7, Issue 1, February 2026.
Abstract For over a century, alluvial river terraces have been used as archives of tectonic deformation or changes in water discharge, sediment supply, and sea level. Despite this long history, such efforts remain challenging: using terraces as deformation markers requires knowledge of their initial geometry, and most attempts to attribute terrace ...
A. Ruby, F. McNab, T. F. Schildgen, A. D. Wickert, V. M. Fernandes   +4 more
wiley   +1 more source

A 6000-year-long genomic transect from the Bogotá Altiplano reveals multiple genetic shifts in the demographic history of Colombia. [PDF]

Sci Adv
Krettek KL, Casas-Vargas A, Mas-Sandoval A, Alvis LA, Reiter E, Madero JM, Urban M, Vargas JCN, Usaquén W, Cuenca JVR, Posth C.   +10 more
europepmc   +1 more source

Runoff Reconstructions and Future Projections Indicate Highly Variable Water Supply From Pacific Rim Water Towers

AGU Advances, Volume 7, Issue 1, February 2026.
Abstract Anthropogenic climate change affects regional hydrological cycles and poses significant challenges to the sustainable supply of freshwater. The Central China water tower (CCWT) is the key source region feeding the Yangtze and Yellow Rivers, and its runoff is indispensable for the surrounding mega‐city clusters. Here we present a reconstruction
Weipeng Yue, Max C. A. Torbenson, Feng Chen, Frederick Reinig, Jan Esper, Edurne Martinez del Castillo, Shijie Wang, Xiaoen Zhao, Mao Hu, Yang Xu, Martín A. Hadad, Álvaro González‐Reyes, Fidel A. Roig, Tiyuan Hou, Honghua Cao, Hechuan Wang, Heli Zhang, Junqiang Niu, Youping Chen   +18 more
wiley   +1 more source

Mountains of diversity: a systematic revision of the Andean rodent genus <i>Oreoryzomys</i> (Cricetidae: Sigmodontinae). [PDF]

PeerJ
Brito J, Vargas R, Tinoco N, García R, Carrión-Olmedo JC, Koch C, Wistuba R, Nivelo-Villavicencio C, Pardiñas UFJ.   +8 more
europepmc   +1 more source

Impacts of Climate Change and Human Activities on Global Mountain Grasslands: Insights Into the Last Two Decades and Future Climate Scenarios

Earth's Future, Volume 14, Issue 2, February 2026.
Abstract Mountain grasslands are vital ecosystems providing critical services such as carbon sequestration, water regulation, and biodiversity conservation. However, these ecosystems are increasingly threatened by climate change and human activities. This study evaluates vegetation dynamics in global mountain grasslands (2000–2021) using remote sensing
Mulun Na, Giulia Zuecco, Paolo Tarolli
wiley   +1 more source

Metabolomic Profile of Açai (<i>Euterpe oleracea</i> Mart., <i>Euterpe precatoria</i> Mart.), Mirití (<i>Mauritia flexuosa</i> L.), and Cupuassu (<i>Theobroma grandiflorum</i> (Wild. ex Spreng.) Schum) from Colombian Amazon: Insights into Nutritional Composition and Ripening Dynamics. [PDF]

Int J Mol Sci
Rodríguez MS, Martínez León AJ, Porras LS, Giraldo IA, Rojas E, Lavao FE, Martínez K.   +6 more
europepmc   +1 more source

Spatial and Temporal Variability of Microbial Nitrogen Cycling Genes in Arctic Streams

Global Biogeochemical Cycles, Volume 40, Issue 2, February 2026.
Abstract The Arctic is undergoing rapid climate change, with thawing permafrost and shifts in vegetation altering nitrogen (N) delivery into streams. These changes can significantly affect microbial biofilm diversity and functional roles, yet knowledge of streambed microbial biofilms remains scarce across the Arctic.
C. M. H. Holmboe, T. Riis, X. Han, A. Frossard, A. M. Romaní, J. B. Kjær, J. L. Tank, P. Giménez‐Grau, E. Hille, L. P. D'Acqui, N. Catalán, A. Pastor   +11 more
wiley   +1 more source

A case study of reservoir characterization and modeling for tidal-dominated estuary reservoir in Ecuador. [PDF]

Sci Rep
Jiwei C, Kexin Z, Chaoqian Z, Yunbo L, Taoran F, Jian L, Xianglin X, Zhongzhen M.   +7 more
europepmc   +1 more source

North and the north-south relationship

, 1991
openaire   +1 more source