Well-sampled regions risk loosing key biological data: a case study in the Atlantic Forest

• Published in: Biodiversity and conservation Vol. 28; no. 10; pp. 2581 - 2598
• Main Authors: Fernandes Mariano, Ravi, Leite Fontes, Marco Aurélio, dos Santos, Rubens Manoel, Njaime Mendes, Carolina, Souza de Moura, Aloysio, Mendonça Torres, Daniel, Bortoli de Freitas, Leandro, Maioli Campos Barbosa, Ana Carolina, Caldas Carvalho, Warley Augusto
• Format: Journal Article
• Language: English
• Published: Dordrecht Springer Netherlands 15-08-2019; Springer; Springer Nature B.V
• Subjects: Analysis; Biodiversity; Biodiversity protection and reserves; Biological data; Biological sampling; Biomedical and Life Sciences; Case studies; Climate Change/Climate Change Impacts; Conservation Biology/Ecology; Ecology; Escarpments; Forests; Heterogeneity; Life Sciences; Original Paper; Polls & surveys; Soil; Soil analysis; Soil conditions; Soil surfaces; Species composition; Surveying; Surveys; Atlantic Forest; Neglected areas; Semideciduous Forest; Diversity; Escarpment
• ISSN: 0960-3115; 1572-9710
• DOI: 10.1007/s10531-019-01780-1

The present study aimed to verify if important biological data are being lost in a well-sampled region due to areas neglected by most biodiversity surveys. We performed a floristic and structural survey of an Atlantic Forest located at the bottom of an escarpment, in the southern region of the state of Minas Gerais, Brazil. A total of 19 plots of 400 m
2
were allocated, totaling 0.76 ha of sampled area. All arboreal individuals with a diameter at breast height equal to or greater than 5 cm were sampled. We also collected surface soil samples for analysis. In order to evaluate the influence of edaphic factors and scarp on the tree community, a canonical correspondence analysis was performed. In order to analyze whether the studied forest is similar to or distinct from the rest of the region, a detrended correspondence analysis was carried out with 15 Atlantic Forest surveys located in the surroundings of the study area. The high floristic diversity and the structural variations found in the studied forest were attributed to the environmental heterogeneity due to the influences of the escarpment and the variations in the soil conditions, resulting in a forest with its own floristic composition and structure. The study suggested that important biological data are being lost in biodiversity surveys, even in well-sampled areas, due to neglected areas of difficult access. Thus, it is important the inclusion of these neglected sites in biodiversity inventories.