Results 21 to 30 of about 498 (87)

Pickin' up good vibrations: a systematic review of footfall detection and analysis in the realm of wildlife surveying

Wildlife Biology, EarlyView.
Exploration of new wildlife surveying methodologies that leverage advances in sensor technology and machine learning has led to tentative research into the application of seismology techniques. This, most commonly, involves the deployment of a footfall trap – a seismic sensor and data logger customised for wildlife footfall.
Benjamin J. Blackledge, Luigi La Spada, Robert A. Briers, Niamh M. McHugh, Patrick J. C. White   +4 more
wiley   +1 more source

Multiphase State Transitions and Thermal−Tidal Decoupling in the AM CVn−Type Star V803 Cen

The Astrophysical Journal
AM CVn systems are ultracompact, short-period binaries emitting multimessenger signals and showing both normal outbursts and superoutbursts. They serve as ideal laboratories for studying accretion physics under extreme conditions and for testing the disk
Qi-Bin Sun, Sheng-Bang Qian, Li-Ying Zhu, Qin-Mei Li, Wen-Ping Liao, Fu-Xing Li, Wen-Xu Lin, Min-Yu Li, Ping Li, Zi-Mo Li, Tao Wang, Mao-Han Zhang   +11 more
doaj   +1 more source

A three dimensional extinction map of the Galactic Anticentre from multi-band photometry

, 2014
We present a three dimensional extinction map in $r$ band. The map has a spatial angular resolution, depending on latitude, between 3 -- 9\,arcmin and covers the entire XSTPS-GAC survey area of over 6,000\,$\rm deg^2$ for Galactic longitude $\rm 140 \leq$
Chen, B. -Q, Huang, Y., Jiang, B. -W., Liu, X. -W., Lu, H., Schultheis, M., Xiang, M. -S., Yao, J. -S., Yuan, H. -B., Zhang, H. -H., Zhao, H. -B.   +10 more
core   +1 more source

Nearby Optical Galaxies: Selection of the Sample and Identification of Groups [PDF]

, 2000
In this paper we describe the Nearby Optical Galaxy (NOG) sample, which is a complete, distance-limited ($cz\leq$6000 km/s) and magnitude-limited (B$\leq$14) sample of $\sim$7000 optical galaxies.
Armando Pisani, Binggeli B., Christian Marinoni, Epchtein N., Escalera E., Focardi P., Fouque P., Garcia A. M., Giuliano Giuricin, Gourgoulhon E., Hermit S., Hudson M. J., Hudson M. J., Hudson M. J., Hudson M. J., Lorenzo Ceriani, Materne J., Moore B., Nolthenius R., Pisani A., Ramella M., Ramella M., Trasarti-Battistoni R., Vennik J., Webster M.   +24 more
core   +2 more sources

Behavioral Patterns of Zoo‐housed Lowland (Tapirus terrestris) and Malayan tapirs (Tapirus indicus), With a Focus on Sleeping Behavior

Zoo Biology, EarlyView.
A behavioral study of the nocturnal activity budget and rhythmicity reveals the relationship between lying cycle (LC) duration and time spent in the REM‐sleep posture (“lying – head down”, LHD) in zoo‐housed Lowland tapirs (Tapirus terrestris) and Malayan tapirs (Tapirus indicus). ABSTRACT To ensure and optimize husbandry conditions, zoo management and
Melina Kurzawe, Yannis König, Isabel Seyrling, Max Hahn‐Klimroth, Gaby Schneider, Paul Wilhelm Dierkes   +5 more
wiley   +1 more source

Contrasting properties of predation and scavenging networks governed by megaherbivores in an African savannah

Journal of Animal Ecology, EarlyView.
For the first time, predation and scavenging networks are directly compared within a single ecosystem. Using an 8‐year dataset of African mammals, including megaherbivores, this study reveals distinct structural rules and body mass constraints, providing a scalable framework for studying consumer–resource dynamics and ecosystem function.
Solange Alexandra Batista‐Nunes, Esther Sebastián‐González, Femke Broekhuis, Frank van Langevelde, Niels Mogensen, Marcos Moleón   +5 more
wiley   +1 more source

Discovery of Faint Nebulosity around a Z Camelopardalis–type Cataclysmic Variable in Antlia: Nova Shell or Ancient Planetary Nebula?

The Astronomical Journal
We report our discovery of a faint nebula surrounding a previously little-studied 15th mag variable star, ASASSN-19ds, in the Southern Hemisphere constellation Antlia. Spectra verify that the star is a cataclysmic variable (CV).
Howard E. Bond, Dana Patchick, Daniel Stern, Jonathan Talbot, John R. Thorstensen   +4 more
doaj   +1 more source

The sizes of mini-voids in the local universe: an argument in favor of a warm dark matter model?

, 2009
Using high-resolution simulations within the Cold and Warm Dark Matter models we study the evolution of small scale structure in the Local Volume, a sphere of 8 Mpc radius around the Local Group.
A. V. Tikhonov, Abazajian, Abazajian, Avila-Reese, Baugh, Begum, Begum, Bode, Bryan, Colberg, Colín, Crain, El-Ad, G. Yepes, Gottlöber, Hoeft, Hoffman, Hoffman, Karachentsev, Kazantzidis, Kirshner, Klypin, Knebe, Knollmann, Koposov, Macciò, Martinez-Vaquero, Miranda, Moore, Neto, Okamoto, Peebles, Peebles, Peñarrubia, S. Gottlöber, Spergel, Spergel, Springel, Steffen, Stoehr, Tikhonov, Tikhonov, van den Bosch, Viel, Viel, Viel, Wang, Y. Hoffman, Zavala   +48 more
core   +1 more source

Monitoring African Megafauna in an Anthropogenic Landscape: A 15‐Year Case Study of the Vulnerable West African Giraffe

Animal Conservation, EarlyView.
We used pattern recognition software to correct misidentifications in a 15‐year photographic database of the last, vulnerable West African giraffe population in Niger. After revealing substantial methodological errors that had inflated population estimates by nearly 19%, we corrected individual encounter histories and applied capture‐mark‐recapture ...
Mara Vukelić, Ella W. White, Julian Fennessy, Abdoul Razack Moussa Zabeirou, Kateřina Gašparová, Simon Valle, Michael B. Brown, Thomas Rabeil, Karolína Brandlová   +8 more
wiley   +1 more source

Discovery of a Bow-shock Nebula Around the Z Cam-type Cataclysmic Variable SY Cancri

The Astronomical Journal
We report the serendipitous discovery of a bow-shock nebula around the cataclysmic variable (CV) SY Cancri. In addition, SY Cnc lies near the edge of a faint H α -emitting nebula with a diameter of about $15^{\prime} $ .
Howard E. Bond, Calvin Carter, David F. Elmore, Peter Goodhew, Dana Patchick, Jonathan Talbot   +5 more
doaj   +1 more source