Biodiversity and Conservation

, 17:3431

High resolution satellite imagery for tropical biodiversity studies: the devil is in the detail

Original Paper

Abstract

While high resolution satellite remote sensing has been hailed as a very useful source of data for biodiversity assessment and monitoring, applications have been more developed in temperate areas. The biodiverse tropics offer a challenge of an altogether different magnitude for hyperspatial and hyperspectral remote sensing. This paper examines issues related to hyperspatial and hyperspectral remotely sensed imagery, which constitutes one of the most potentially powerful yet underutilized sources of for tropical research on biodiversity. Hyperspatial data with their increased pixel resolution are possibly best suited at facilitating the accurate location of features such as tree canopies, but less suited to the identification of aspects such as species identity, particularly when spatial resolution becomes too fine and pixels are smaller than the size of the object (e.g., tree canopy) being identified. Hyperspectral data on the other hand, with their high spectral resolution, can be used to record information pertaining to a range of critical plant properties related to species identity, and can be very effective used for discriminating tree species in tropical forests, despite the greater complexity of such environments. There remains a glaring gap in the easy availability of hyperspectral and hyperspatial satellite data in the tropics due to reasons of cost, data coverage, and security restrictions. Stimulating discussion on the applications of this powerful, but underutilized tool by ecologists, is the first step in promoting a more extensive use of such data for ecological studies in tropical biodiversity rich areas.

Keywords

Biodiversity Hyperspatial data Hyperspectral data Monitoring Remote sensing Satellite imagery Tropics 

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Copyright information

© Springer Science+Business Media B.V. 2008

Authors and Affiliations

  1. 1.Ashoka Trust for Research in Ecology and the EnvironmentBangaloreIndia
  2. 2.Center for the Study of Institutions, Population, and Environmental ChangeIndiana UniversityBloomingtonUSA
  3. 3.Dipartimento di Scienze Ambientali “G. Sarfatti”Università di SienaSienaItaly
  4. 4.TerraData environmetrics, Dipartimento di Scienze Ambientali “G. Sarfatti”Università di SienaSienaItaly

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