19 papers · ranked by Valyu relevance
Montague H. C. Neate-Clegg, Simon N. Stuart, Devolent Mtui, Çağan H. Şekercioğlu + 2 more
'Çağan H. Şekercioğlu' 'William D. Newmark' 'Bhoj Kumar Acharya'] Global warming is predicted to result in upslope shifts in the elevational ranges of bird species in montane habitats. Yet few studies have examined changes over time in the elevational distribution of species along fragmented gradients in response to…
Ali Khan Faizee, Vijay Ramesh, V.V. Robin
Elevational migration is short-distance migration through which species track seasonal changes in weather and resources along elevational gradients. Key identified drivers of elevational migration include climatic variability, resource availability, and predation. Although the spatiotemporal coverage of participatory…
Melanie A. Harsch, Janneke HilleRisLambers, Christopher Carcaillet
Using an extensive network of occurrence records for 293 plant species collected over the past 40 years across a climatically diverse geographic section of western North America, we find that plant species distributions were just as likely to shift upwards (i.e., towards higher elevations) as downward (i.e., towards…
Tomoki Sakiyama, Jorge García Molinos
Species in mountain ecosystems often experience upslope distribution shifts in response to climate change. However, elevational range dynamics exhibit substantial complexity around this general trend, with varying magnitude and direction of shifts observed among studies. We tested whether factors other than…
C. J. Battey, Luisa M. Otero, George C. Gorman, Paul E. Hertz + 4 more
Because Puerto Rico has warmed in recent decades, ectotherms there should have shifted their elevational ranges uphill. However, by comparing historical versus recent distributional records of Anolis lizards, we found that three “montane-forest” species have instead moved downhill in recent decades, almost to sea…
Madeleine A. Rubenstein, Sarah R. Weiskopf, Romain Bertrand, Shawn L. Carter + 10 more
Background Among the most widely predicted climate change-related impacts to biodiversity are geographic range shifts, whereby species shift their spatial distribution to track their climate niches. A series of commonly articulated hypotheses have emerged in the scientific literature suggesting species are expected to…
Shixuan Li, Jiannan Yao, Yang Lin, Siyu Wu + 8 more
'Chao Jin' 'Yuhan Zhang' 'Zhen Wang' 'Jinliang Liu' 'Guochun Shen' 'Mingjian Yu' 'Giuseppe Fenu'] Climate change is compelling species to seek refuge at higher elevations and latitudes. While researchers commonly study these migrations using discontinuous elevational transects, this methodology may introduce…
Evelin Iseli, Nathan Diaz Zeugin, Camille Brioschi, Jake Alexander + 1 more
Global warming is pushing species to shift their ranges towards higher latitudes and elevations, causing a reassembly of plant communities potentially accompanied by community thermophilization (i.e., an increasing number or cover of thermophilic species, sometimes at the expense of mesic or cold-adapted species).…
Aniruddha Marathe, S.P. Vijayakumar, Varun Torsekar, K.P. Dinesh + 3 more
Anthropogenic climate change is altering the environment at unprecedented rates with severe consequences for most living organisms. As a result, species may extend, truncate, or shift their ranges in order to adapt to changing conditions. Species Distribution Models (SDMs) provide a data driven approach to predict…
Wei-Ping Chan, Jonathan Lenoir, Guan-Shuo Mai, Hung-Chi Kuo + 2 more
'I-Ching Chen' 'Sheng-Feng Shen'] Mountain ranges contain high concentrations of endemic species and are indispensable refugia for lowland species that are facing anthropogenic climate change1,2. Forecasting biodiversity redistribution hinges on assessing whether species can track shifting isotherms as the climate…
Colin J. Carlson, Ellen Bannon, Emily Mendenhall, Timothy Newfield + 1 more
Facing a warming climate, many tropical species-including the arthropod vectors of several infectious diseases-will be displaced to higher latitudes and elevations. These shifts are frequently forecasted for the future, but rarely documented in the present day. Here, we use one of the most comprehensive datasets ever…
Jaime J. Carrera-Hernández
Mexico has used two vertical datums-the U.S. National Geodetic Vertical Datum of 1929 (NGVD29) and the North American Vertical Datum of 1988 (NAVD88). Because Mexico started using the NAVD88 as its vertical datum in 2015, most of Mexico’s data is referenced to the NGVD29 and recent high resolution data are referenced…
J. Lenoir, R. Bertrand, L. Comte, L. Bourgeaud + 3 more
Despite mounting evidence of species redistribution as climate warms, our knowledge of the coupling between species range shifts and isotherm shifts is limited. Compiling a global geo-database of 30,534 range shifts from 12,415 taxa, we show that only marine taxa closely track the shifting isotherms. In the oceans, the…
Eric E. Mamajek
As the 50th anniversary of the Cerro Tololo Inter-American Observatory (CTIO) draws near, the author was surprised to learn that the published latitude and longitude for CTIO in the Astronomical Almanac and iraf observatory database appears to differ from modern GPS-measured geodetic positions by nearly a kilometer.…
Kai Xu
Elevation has long been the standard for quantifying the relief of mountains and other landforms on Earth and beyond. Nevertheless, elevation has its limitations. By itself, a location's elevation reveals little about its vertical position relative to its surroundings, especially for seabed and extraterrestrial…
Yoshio Nishimoto
Complete active space second-order perturbation theory (CASPT2) is useful for accurately predicting properties of complex electronic structures, but it is well known that it systematically underestimates excitation energies. The underestimation can be corrected using the ionization potential--electron affinity (IPEA)…
Qingchen Liu, Samuel Picton Drake, Brian D. O. Anderson
—In this paper, we present an algorithm for determining a curve on the earth's terrain on which a stationary emitter must lie according to a single Doppler shift measured on an unmanned aerial vehicle (UAV) or a low earth orbit satellite (LEOS). The mobile vehicle measures the Doppler shift and uses it to build…
Guillermo Terrén-Serrano, Manel Martínez‐Ramón
Sky imaging systems use lenses to acquire images concentrating light beams in a sensor. The light beams received by the sky imager have an elevation angle with respect to the device normal. Thus, the pixels in the image contain information from different areas of the sky within the imaging system field of view. The…
Anatoliy Khait, Zhihua Ma
We present an investigation of the fundamental physical processes involved in deep water wave breaking. Our motivation is to identify the underlying reason causing the deficiency of the eddy viscosity breaking model (EVBM) in predicting surface elevation for strongly nonlinear waves. Owing to the limitation of…