Deforestation and fragmentation trends of seasonal dry tropical forest in Ecuador: impact on conservation

نویسندگان

چکیده

Abstract Background Fragmentation and deforestation are one of the greatest threats to forests, these processes even more concern in tropics, where seasonal dry forest is possibly most threatened ecosystems with least remaining surface area. Methods The fragmentation patterns that had occurred Ecuadorian forests between 1990 2018 were verified, while geographic information systems land cover shapes provided by Ministry Environment employed classify evaluate three types forests: deciduous, semi-deciduous, transition. study area was tessellated into 10 km 2 hexagons, which six parameters measured: number patches, mean patch size, median total edge, edge density reticular index (RFI). RFI also measured both outside inside protected natural areas (unprotected, national forest). Moreover, best worst conservation status, connectivity risk disappearance values identified means a Getis-Ord Gi* statistical analysis. Results affected 27.04% original still 1990, an annual rate − 1.12% 2018. has increased 11.61% as result fact small fragments have tended disappear, large been fragmented smaller ones. semi-deciduous highest levels categories protection significantly different fragmentation, lower greater forests. Conclusions fragmenting, deforesting disappearing some areas. An is, therefore, necessary owing not all measures effective.

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ژورنال

عنوان ژورنال: Forest Ecosystems

سال: 2021

ISSN: ['2197-5620', '2095-6355']

DOI: https://doi.org/10.1186/s40663-021-00329-5