Results 81 to 90 of about 2,196 (169)

Occurrence of ionospheric scintillation during geomagnetic storms in Indonesia (2003–2024) using superposed epoch analysis

open access: yesEarth and Planetary Physics
Ionospheric scintillation refers to rapid radio signal amplitude and phase fluctuations due to small-scale irregularities in the ionosphere. Occurring primarily at equatorial and low latitudes, scintillation is linked to equatorial plasma bubbles (EPBs),
Angga Yolanda Putra   +7 more
doaj   +1 more source

Experimental assessment of large mammal population estimates from airborne thermal videography

open access: yesWildlife Biology, EarlyView.
Wildlife resource management requires reliable, fast, and affordable methods of surveying wildlife populations to develop and adaptively adjust policies. Thermal video from drones can yield high rates of detection over large areas with relative speed and safety.
Julia S. McElhinny   +7 more
wiley   +1 more source

A Case Report on Rehabilitation of the Asiatic Black Bear (Ursus thibetanus ussuricus) in the Wild 亚洲黑熊 (Ursus thibetanus ussuricus) 野外放归野化案例报告

open access: yesWildlife Letters, EarlyView.
Asiatic black bears in Russia face conservation threats such as habitat destruction and fragmentation, which exacerbate food shortages caused by crop failures. This study explores an innovative approach to rehabilitating bears that abandon hibernation in mid‐winter due to extreme exhaustion by providing supplemental food near their den sites.
Sergey A. Kolchin   +2 more
wiley   +1 more source

Nesting ecology of an ice‐associated seabird, Kittlitz's murrelet, at the northern edge of its range

open access: yesWildlife Society Bulletin, EarlyView.
We studied the Kittlitz's murrelet, an ice‐associated seabird of conservation concern, at the northern edge of its range. Over a 2‐year period, we estimated nest density and success at 2 sites, captured and telemetered nesting murrelets, and tested the use of a thermal camera to improve nest detection.
Michelle L. Kissling   +9 more
wiley   +1 more source

A System Development Lifecycle Approach for the Development of Decision Support Systems for Operating Rooms Planning and Scheduling Using Mathematical Programming, Heuristics, and Discrete Event Simulation

open access: yesMathematics
This paper describes an approach for developing decision support systems (DSS) for strategic and tactical operating room (OR) planning and scheduling problems.
Justin Britt   +2 more
doaj   +1 more source

Abundance estimates of eastern black rails in southeastern Colorado

open access: yesWildlife Society Bulletin, EarlyView.
This study estimated eastern black rail (Laterallus jamaicensis jamaicensis) detection, occupancy, and abundance in southeastern Colorado. We found detection probability increased later in the season and later at night but decreased with ambient noise. Occupancy increased with residual vegetation height and detection of Virginia rail (Rallus limicola).
Eleonora M. Hargett   +3 more
wiley   +1 more source

Mosquitoes (Diptera: Culicidae) from crepuscular period in an Atlantic Forest area in Southern Brazil

open access: yesBrazilian Journal of Biology
Crepuscular period is one of the factors that may influence the biting activity of mosquitoes. Many of these insects have a peak activity in this period.
E. Orlandin   +7 more
doaj   +1 more source

The Influence of Seasonal Weather Conditions at High Latitudes on the Temporal Distribution of Territorial Vocalizations by Captive Asiatic Lions (Panthera leo persica)

open access: yesZoo Biology, EarlyView.
ABSTRACT Territorial advertising in lions involves a suite of behaviors such as patrolling, scent marking, spraying, and vocalizing. In their native tropical habitat, wild lions are primarily nocturnal, capitalizing on cooler temperatures and darkness for effective hunting and minimizing thermoregulation stress.
Michael Feeney   +9 more
wiley   +1 more source

Pollination‐related plant traits under environmental changes: Seasonal and daily mismatches produce temporal constraints

open access: yesFunctional Ecology, EarlyView.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Pollination is a key tenet of ecosystem sustainability and food security, but it is threatened by climate change. While many studies investigated the response of plant‐pollination traits to temperature, few attempted multifactorial and integrative approaches with ...
Mathieu A. J. Leclerc   +2 more
wiley   +1 more source

Evolution of Post‐Sunset EPBs: Relationships to the EIA Induced by Pre‐Reversal Enhancement Electric Fields

open access: yesSpace Weather
This paper presents Global Navigation Satellite System radio occultation (RO) observational analyses on deducing the relationships and dependences between post‐sunset equatorial plasma bubbles (EPB) occurrences and equatorial ionospheric anomaly (EIA ...
Lung‐Chih Tsai   +4 more
doaj   +1 more source

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