Results 31 to 40 of about 2,953,114 (317)

Estimating wolf abundance from cameras

Ecosphere, 2022
Monitoring the abundance of rare carnivores is a daunting task for wildlife biologists. Many carnivore populations persist at relatively low densities, public interest is high, and the need for population estimates is great.
David E. Ausband, Paul M. Lukacs, Mark Hurley, Shane Roberts, Kaitlyn Strickfaden, Anna K. Moeller   +5 more
doaj   +1 more source

Effects of Different Rotation Combinations of Cabbage, Kidney Bean and Maize on Soil Fungal Communities and Soil Nutrients

Agronomy, 2023
The continuous cropping of cabbage or kidney bean results in a decrease in yield by influencing the soil environment. To decrease the damage caused by continuous cropping, ten treatments of cabbage–maize–cabbage (CMC), kidney bean–maize–cabbage (BMC ...
Tianle Wang, Xiaojuan Wang, Ling Xie
doaj   +1 more source

Geochemical characteristics of rare earth elements in late Palaeozoic coals from North China

Frontiers in Earth Science
Introduction: China is a large country of REE resources and production, supplying more than 90% of the world’s rare earth consumption market, China’s traditional REE resources, although rich, but reserves are also declining, in recent years, scholars ...
Long Wen, Long Wen, Wenhui Huang, Yuanfu Zhang, Bo Jiu   +4 more
doaj   +1 more source

Seasonal Changes in Vertical Distribution and Population Structure of the Dominant Hydrozoan Aglantha digitale in the Western Subarctic Pacific

Oceans, 2023
Hydrozoans are numerically dominant taxa in gelatinous zooplankton communities of the worldwide oceans and play an energy transfer role connecting primary producers and higher trophic level organisms. In the western subarctic Pacific, St.
Mari Aizawa, Tian Gao, Atsushi Yamaguchi
doaj   +1 more source

Abundance Analysis of Barium Stars

, 2008
We obtain the chemical abundances of six barium stars and two CH subgiant stars based on the high signal-to-noise ratio and high resolution Echelle spectra. The neutron capture process elements Y, Zr, Ba, La, Eu show obvious overabundance relative to the
Bard, Biémont, Boffin, Boffin, Carquillat, Chen, ESA, Fuhr, Gallino, Griffin, Guo-Qing Liu, Gómez, Han, Jorissen, Jorissen, Kurucz, Lambert, Li-Cai Deng, Liang, Liu, Mennessier, Nissen, Preston, Smith, Weise, Yan-Chun Liang, Yi, Začs, Zhao   +28 more
core   +1 more source

Ecosystem recharge by volcanic dust drives broad-scale variation in bird abundance [PDF]

, 2015
Across the globe, deserts and volcanic eruptions produce large volumes of atmospheric dust, and the amount of dust is predicted to increase with global warming.
Aradóttir, Arnalds, Arnalds, Arnalds, Arnalds, Arnalds, Arnalds, Arnalds, Arnalds, Arnalds, Arnalds, Ausden, Ayris, Baratoux, BirdLife International, Björnsson, Brady, Bullard, Chadwick, Curry, Dagsson-Waldhauserova, Dagsson-Waldhauserova, Dagsson-Waldhauserova, Duggen, Eger, Einarsson, Einarsson, Engelstaedter, Field, Garrison, Gathorne-Hardy, Gisladottir, Gislason, Gunnarsson, Gunnarsson, Gunnarsson, Helgadóttir, Hooper, Jakobsson, Jickells, Johannesdottir, Kålås, Langmann, Lequy, McGovern, McTainsh, Nriagu, Olgun, Oskarsson, Paradis, Pelzer, Prospero, Prospero, Reynolds, Ridley, Sankey, Shinn, Siebert, Sigurdsson, Suchodoletz, Thorarinsdottir, Thorarinsson, Thordarson, Verhulst, Vitousek, Webley, Wilson, Wilson   +67 more
core   +1 more source

Capitoline Dolphins: Residency Patterns and Abundance Estimate of Tursiops truncatus at the Tiber River Estuary (Mediterranean Sea)

Biology, 2021
Periodic assessments of population status and trends to detect natural influences and human effects on coastal dolphin are often limited by lack of baseline information.
Daniela Silvia Pace, Chiara Di Marco, Giancarlo Giacomini, Sara Ferri, Margherita Silvestri, Elena Papale, Edoardo Casoli, Daniele Ventura, Marco Mingione, Pierfrancesco Alaimo Di Loro, Giovanna Jona Lasinio, Giandomenico Ardizzone   +11 more
doaj   +1 more source

The primordial lithium abundance

, 1996
Lithium abundances in a selected sample of halo stars have been revised by using the new accurate IRFM effective temperatures by Alonso, Arribas & Martinez-Roger (1996a). From 41 plateau stars (Teff > 5700 and [Fe/H]
Bonifacio, Piercarlo, Molaro, Paolo
core   +1 more source

Abundance and diversity of Mollusca in the Beagle Channel

Scientia Marina, 1999
The malacofauna of the Beagle Channel caught by an epibenthic sledge during the Joint Magellan Victor Hensen Campaign in 1994 was investigated. At 11 locations 16 samples were taken on a transect through the Channel.
Katrin Linse
doaj   +1 more source

Population Dynamics of Three Polyplacophora Species from the Aegean Sea (Eastern Mediterranean)

Diversity, 2023
The present study is the first to examine spatio-temporal variations in the densities and morphometrics of three shallow water Polyplacophora species (Rhyssoplax olivacea, Acanthochitona fascicularis and Lepidopleurus cajetanus), native to the eastern ...
Anastasios Varkoulis, Konstantinos Voulgaris, Daniil Solonas Zachos, Dimitris Vafidis   +3 more
doaj   +1 more source