Impacte
Exportar
Enllaç permanent
Tipus de Document
Extensió
13 p.
Resum
Diversity inventories are critical to creating accurate species range maps and estimating population sizes, which in turn lead
to better informed landscape and wildlife management decisions. Metabarcoding has facilitated large-scale environmental
diversity surveys. However, the use of a metabarcoding approach with bird feces to survey arthropod diversity is still rela-
tively undeveloped. The aim of this study was to see if and how a metabarcoding approach with bird feces could contribute
to a saproxylic Coleoptera survey of traditional insect traps. We compared two methods of surveying saproxylic Coleoptera
diversity (metabarcoding birds feces and deploying traditional traps) over two elevations in a mountain system. The two
methods caught different species and different levels of functional guild richness. The metabarcoding method successfully
recorded both distinct and overlapping portions of diversity from traditional collections, and the approach was also effec-
tive in signaling the presence of both rare species and nine country records. Our results show that metabarcoding Passerine
bird feces can be successful when used alongside traditional collection methods to capture a broad diversity of saproxylic
Coleoptera. This method, however, has quantitative and qualitative limitations, including the inability to produce species
abundance data as well as the generation of false positives and negatives due to biases within the metabarcoding pipeline.
Implications for insect conservation As many terrestrial ecosystems lose insect diversity, insect diversity surveys are essential
to understand the scope of the loss. Despite metabarcoding approach shortcomings, the declining costs and shorter survey
and processing time required for this approach compared to traditional survey methods indicate that it can be a valuable
addition to the toolkit for saproxylic Coleoptera diversity survey
Condicions d’ús
CC-BY
Detall de les condicions d'ús
© The Author(s) 2023