Biodiversity data obsolescence and land uses changes
نویسندگان
چکیده
منابع مشابه
Biodiversity data obsolescence and land uses changes
BACKGROUND Primary biodiversity records (PBR) are essential in many areas of scientific research as they document the biodiversity through time and space. However, concerns about PBR quality and fitness-for-use have grown, especially as derived from taxonomical, geographical and sampling effort biases. Nonetheless, the temporal bias stemming from data ageing has received less attention. We exam...
متن کاملLand-use, Land-cover Changes and Biodiversity Loss
During Earth's history, species extinction has probably been caused by modifications of the physical environment after impacts such as meteorites or volcanic activity. On the contrary, the actual extinction of species is mainly a result of human activities, namely any form of land use that causes the conversion of vast areas to settlement, agriculture, and forestry, resulting in habitat destruc...
متن کاملDisaggregate land uses and walking.
BACKGROUND Although researchers have explored associations between mixed-use development and physical activity, few have examined the influence of specific land uses. PURPOSE This study analyzes how the accessibility, intensity, and diversity of nonresidential land uses are related to walking for transportation. METHODS Multinomial logistic regression was used to investigate associations be...
متن کاملBiodiversity in water and on land
Habitats in the sea, in freshwater, and on land differ dramatically in species composition and diversity. Of the roughly 1.5 million known species of macroscopic organisms on earth, the modern ocean — despite its much larger area and volume — supports only about 15% of species, whereas terrestrial environments account for about 80% of species, and freshwater for the remaining 5% (Figure 1). Eve...
متن کاملInvestigating the Trend of Desertification Changes in Different Land Uses of Gavkhoni Basin Using Change Vector Analysis Method
Introduction: Desertification refers to the decreased biological potentials in the ecosystem of hyper-arid, arid, semi-arid, and humid semi-arid regions because of climate change and human activities. The phenomenon occurs due to a combination of direct and indirect factors whose intensity varies according to time and place, making the scientific, replicable, and systematic evaluation of desert...
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ژورنال
عنوان ژورنال: PeerJ
سال: 2016
ISSN: 2167-8359
DOI: 10.7717/peerj.2743