Results 11 to 20 of about 19,676 (154)

The Unstable Relationship Between Drought Status and Leaf Water Content Complicates the Remote Sensing of Tree Drought Stress. [PDF]

Glob Chang Biol
Remote sensing can monitor plant drought stress across ecosystems but is limited by uncertain links between physiological stress and measurements of water content. We examined how water potential and water content, measured in the field, laboratory, and via airborne imaging, vary over time and space in two oak species.
Boving I, Allen J, Brodrick PG, Chadwick KD, Trugman A, Anderegg LDL.   +5 more
europepmc   +2 more sources

Prospects and perils in the geospatial turn of conservation. [PDF]

Conserv Biol
Abstract Conservation has embraced advances in big data and related digital technologies as key to preventing biodiversity loss, especially in the identification of areas of conservation priority based on spatial data, which we call the big geospatial data turn.
Sze JS, Sauls LA.
europepmc   +2 more sources

Downscaling global reference points to assess the sustainability of local fisheries. [PDF]

Conserv Biol
Abstract Multispecies coral reef fisheries are typically managed by local communities who often lack research and monitoring capacity, which prevents estimation of well‐defined sustainable reference points to perform locally relevant fishery assessments.
Zamborain-Mason J, Connolly SR, MacNeil MA, Barnes ML, Bauman AG, Feary DA, Huertas V, Januchowski-Hartley FA, Lau JD, Mihalitsis M, Cinner JE.   +10 more
europepmc   +2 more sources

Navigating data challenges in socioeconomic impact assessments of conservation regimes. [PDF]

Conserv Biol
Abstract Scholars are increasingly assessing the impact of conservation interventions at national and regional scales with robust causal inference methods designed to emulate randomized control trials (quasi‐experimental methods). Although spatial and temporal data to measure habitat loss and gain with remote sensing tools are increasingly available ...
Hajjar R, Oldekop JA, Toto R, Alencar L, Bell SD, Devenish K, Khuu DT, Hernandez-Montilla M, Jung S, Nofyanza S, Sapkota LM.   +10 more
europepmc   +2 more sources

Assessing disturbances in surviving primary forests of Europe. [PDF]

Conserv Biol
Abstract Primary forests are of paramount importance for biodiversity conservation and the provision of ecosystem services. In Europe, these forests are scarce and threatened by human activities. However, a comprehensive assessment of the magnitude of disturbances in these forests is lacking, due in part to their incomplete mapping.
Barredo JI, Marí Rivero I, Janoušková K.   +2 more
europepmc   +2 more sources

Habitat Changes at the Local Scale Have Major Impacts on Waterfowl Populations Across a Migratory Flyway. [PDF]

Glob Chang Biol
Migratory waterbirds are declining worldwide due to habitat loss, but not much is known about how the loss of specific wetlands can affect waterbird populations at the biogeographical scale. To investigate that, we used the Guadalquivir Marshes (SW Spain) as a case study and combined 38 years of waterfowl winter counts with environmental and remote ...
de Felipe M, Amat JA, Arroyo JL, Rodríguez R, Díaz-Paniagua C.   +4 more
europepmc   +2 more sources

Global drivers of mangrove loss in protected areas. [PDF]

Conserv Biol
Abstract Despite increasing efforts and investment in mangrove conservation, mangrove cover continues to decline globally. The extent to which protected area (PA) management effectively prevents mangrove loss globally across differing management objectives and governance types is not well understood.
Heck N, Goldberg L, Andradi-Brown DA, Campbell A, Narayan S, Ahmadia GN, Lagomasino D.   +6 more
europepmc   +2 more sources

Development of a consistent global long-term burned area product (1982–2018) based on AVHRR-LTDR data

International Journal of Applied Earth Observations and Geoinformation, 2021
This paper presents the generation of a global long-term Burned Area (BA) product based on Advanced Very High Resolution Radiometer (AVHRR) images. The BA product was derived from the Land Long Term Data Record (LTDR), which provides a continuous dataset
Gonzalo Otón, Joshua Lizundia-Loiola, M. Lucrecia Pettinari, Emilio Chuvieco   +3 more
doaj   +1 more source

Classification of Satellite Images by means of Fuzzy Rules generated by a Genetic Algorithm [PDF]

, 2011
The data acquired by Remote Sensing systems allow obtaining thematic maps of the earth's surface, by means of the registered image classification. This implies the identification and categorization of all pixels into land cover classes.
Arquero Hidalgo, Águeda, Gonzalo Martín, Consuelo, Gordo, O., Martínez Izquierdo, María Estíbaliz   +3 more
core   +2 more sources

Estudio crítico de los índices de severidad y la superficie afectada por el incendio de Sierra de Luna (Zaragoza)

Revista de Teledetección, 2017
Para la determinación del área quemada y la severidad asociada del incendio de Sierra de Luna (Zaragoza), ocurrido el 4 de julio de 2015, se han calculado tres índices espectrales derivados de Landsat-8: NDVI, NBR y BAI.
R. Guillem-Cogollos, D. Vinué-Visús, V. Caselles-Miralles, H. Espinós-Morató   +3 more
doaj   +1 more source