Pollen assemblage and environmental DNA changes: A 4300-year-old bat guano deposit from Jamaica
作者： W. Bogdanowicz , Elżbieta Worobiec , C. Grooms , L.E. Kimpe , J.P. Smol
DOI: 10.1016/J.QUAINT.2020.09.003
关键词: Cecropia 、 Rhizophora 、 Cave 、 Ecology 、 Biology 、 Pollen 、 Palynology 、 Guano 、 Mangrove 、 Vegetation
摘要: Abstract The discovery of two undisturbed caves in Jamaica with 14C and 210Pb dating indicating that the oldest layers guano were ca. 200 years old first cave (81 cm long core), as much 4300 second (129 cm core) provides exciting possibilities to examine past ecological communities. We analyzed genetic pollen profiles these ancient bat deposits revealed DNA sequences most similar arthropods, mainly insects such caddisflies (Trichoptera), butterflies (Lepidoptera) mayflies (Ephemeroptera), suggesting a potential source for dietary data. Palynological analysis failed recover well-preserved grains spores older than years, however preserving pollen, angiosperms abundant plants observed, regular occurrence potato (Solanaceae) pepper families (Piperaceae), which are frequently bat-dispersed. In general, changes frequency particular plant taxa appear reflect vegetation land use vicinity; however, some could be linked hurricanes, leading forest canopy damage promoting growth light-demanding species guarumo (Cecropia). Higher amounts mangrove (Rhizophora) have also been recorded periods heavy hurricane activities. Our data highlight value resource systems stress conservation values deposits.
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