Results 141 to 150 of about 6,263 (283)

An improved A* algorithm for generating four-track trajectory planning to adapt to longitudinal rugged terrain. [PDF]

Sci Rep
Liu ZG, Yang HN, Wang QC, Shi Y, Zhao J.
europepmc   +1 more source

Uncovering correlates of decline and critical refuges for a threatened terrestrial mammal

Conservation Biology, EarlyView.
Abstract Globally, the geographic ranges of numerous species are contracting. Identifying spatiotemporal patterns of threat impact can illuminate why species decline in some parts of their range but persist in others. We developed a correlative approach to identify species’ response thresholds and locate ecological refuge areas associated with ...
Natalya M. Maitz, Michelle S. Ward, Jonathan R. Rhodes, Ben C. Scheele, Hugh P. Possingham, Diana O. Fisher   +5 more
wiley   +1 more source

Terrain Selection by Reindeer in Late Winter in Central Norway

, 1996
. Characteristics of topography, snow, lichen cover, and lichen distribution were compared with habitat use by Snøhetta reindeer (Rangifer tarandus tarandus L.) in central Norway to investigate the role of terrain structure for habitat use within ...
Christian Nellemann, Nellemann, Christian   +1 more
core  

Impact of global change on the distribution of mountain mammals and birds

Conservation Biology, EarlyView.
Abstract Climate change and land‐use changes are key drivers of global biodiversity loss. Many species are shifting to higher elevations or latitudes in response to global warming, often encountering unfavorable land‐use conditions during the shift. These changes can lead to reduced range size and increased extinction risks, particularly for mountain ...
Chiara Dragonetti, Wilfried Thuiller, Maya Guéguen, Julien Renaud, Piero Visconti, Moreno Di Marco   +5 more
wiley   +1 more source

Panama, aerial view of jungle and rugged terrain

Panama - Rugged interiorColorVolume 103, Page ...
Forman, Harrison, 1904-1978
core  

SCSCTS: An improved SCS+C topographic correction model with shadow compensation for mountainous regions. [PDF]

PLoS One
Shen X, He Y, Chen L, Liu S, Wu Z, Song S, Deng L, Du X.   +7 more
europepmc   +1 more source

Limited elephant impacts on baobabs despite increasing elephant densities in a newly established protected area

Conservation Science and Practice, EarlyView.
Researchers combined aerial and ground surveys to map baobab distribution and assess elephant herbivory impacts on baobabs across Karingani Game Reserve, Mozambique. Researchers found that aerial surveys were an effective tool for mapping baobabs and that baobabs were more likely to occur closer to permanent water, at lower elevations, and in areas ...
Audrey Y. Chin, Catherine A. Ressijac, Peter S. Goodman, Hannah Adler, Andrew B. Davies   +4 more
wiley   +1 more source

Investigating ICESat-2 ATL08 Terrain Height Estimation Performance and Affecting Factors: The Impact of Land Cover, Slope, and Acquisition Time. [PDF]

Sensors (Basel)
Akturk E, Altunel AO, Dogan S.
europepmc   +1 more source

Environmental DNA detection of three threatened stream frog species suggests widespread presence of two species and widespread loss of one

Conservation Science and Practice, EarlyView.
We conducted eDNA surveys of stream water for three Endangered frog species. The Critically Endangered Armoured Mistfrog was only detected in one catchment. The two other species were detected more widely, increasing the known populations. Abstract Amphibians face severe threats globally, with the amphibian chytrid fungus Batrachochytrium dendrobatidis
Cecilia Villacorta‐Rath, Conrad J. Hoskin, Damien Burrows   +2 more
wiley   +1 more source

Tracing the pathways to Yathrib (Al-Madinah): A GIS-based analysis of settlement patterns and ancient trade networks. [PDF]

PLoS One
Metwaly M, Alshami A.
europepmc   +1 more source