Results 61 to 70 of about 7,527 (250)
The Journal of Wildlife Management, EarlyView.We used GPS video camera collar data from barren‐ground caribou in the Porcupine and Western Arctic herds to validate antler‐ and movement‐based methods for estimating annual reproductive metrics. Antler retention was highly accurate for estimating parturition, but the movement methods we tested performed marginally for estimating parturition and ...
Heather E. Johnson +6 more
wiley +1 more source
Defence TechnologyThe highly dynamic nature, strong uncertainty, and coupled multiple safety constraints inherent in carrier aircraft recovery operations pose severe challenges for real-time decision-making.
Wei Han +6 more
doaj +1 more source
Recovery of great blue herons (Ardea herodias) within the Chesapeake Bay
The Journal of Wildlife Management, EarlyView.We surveyed great blue herons throughout the tidal reach of the Chesapeake Bay in 2013 and mapped 423 colonies supporting 15,094 pairs. The population has increased more than four‐fold since the mid‐1970s. Colony size has declined. Invasion of colonies by bald eagles may be driving a change in spatial structure.
Bryan D. Watts +2 more
wiley +1 more source
How Cyber-Resilient Are Unmanned Aircraft Systems? A Systematic Meta-Review
AerospaceUnmanned Aircraft Systems (UASs) offer a promising future for aviation operations, even though it suffers larger cyber-related challenges. As such, cyber-resilience becomes a core property for drones’ operations.
Andrea Montaruli +2 more
doaj +1 more source
Land Degradation &Development, EarlyView.ABSTRACT Land degradation is a critical global challenge, threatening biodiversity, food security, and livelihoods. Ecological restoration has therefore become a priority, with aerial seeding emerging as a key method to address issues of scale, accessibility, and efficiency. By dispersing seeds from aircraft or drones, aerial seeding complements ground‐
James Maua +4 more
wiley +1 more source
A Supervised Learning Framework for Accelerating Solvers and Metaheuristics in Routing Problems
Networks, EarlyView.ABSTRACT Routing problems such as the traveling salesman problem (TSP) and the capacitated vehicle routing problem (CVRP) are computationally challenging due to the exponential growth of their feasible solution spaces with increasing instance size.
Johannes Gückel +2 more
wiley +1 more source
Ecosystem engineers and functional dominance: when species loss matters for ecosystem function
Oikos, EarlyView.Understanding when and why species loss affects community function in natural communities remains an open question in ecology. Recent cross‐system analyses have shown that functional dominance is associated with whether species loss matters: in communities dominated by few high‐performing species, lost species contribute little to function.
Gianluca Sarà +2 more
wiley +1 more source
Digital surveillance of animals and nature recovery
People and Nature, EarlyView.Abstract Digital surveillance technologies (DSTs) are widely applied in nature recovery for their potential to generate novel data on species and ecosystems through digital tracking, automation (e.g. from hazardous locations) and from newly recruited citizen scientists.
William M. Adams
wiley +1 more source
Polymer Composites, EarlyView.Hybrid fiber‐metal laminates combining aluminum with carbon, glass, and sisal/epoxy layers. Sisal fibers maintained strength, improved strain and thermal stability, and reduced residual stresses with less synthetic fiber. ABSTRACT This work studied how hybridization between natural and synthetic fibers influences the structural tensile performance ...
Vilson Dalla Libera Junior +4 more
wiley +1 more source
Научный вестник МГТУ ГА, 2018 Airport Collaborative Decision Making (A-CDM) is a collaborative process management tool in accordance with agreed procedures to improve the performance of all partners in all situations.
E. E. Nechaev, A. O. Nikulin
doaj +1 more source