NDLI: Assessment of the ecological structure of Posidonia oceanica (L.) Delile on the northern coast of Lazio, Italy (central Tyrrhenian, Mediterranean)

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Assessment of the ecological structure of Posidonia oceanica (L.) Delile on the northern coast of Lazio, Italy (central Tyrrhenian, Mediterranean)

Content Provider	Semantic Scholar
Author	Gnisci, Valentina Martiis, Selvaggia Cognetti De Belmonte, Alessandro Micheli, Carla Piermattei, Viviana Bonamano, Simone Marcelli, Marco
Copyright Year	2020
Abstract	The ecological structure of Posidonia oceanica (L.) Delile meadows was evaluated on the northern coast of Lazio, Italy (central Tyrrhenian, Mediterranean sea). This is an infra-littoral zone with a wide range of anthropogenic activities and high geo-morphological variability, which reflects heterogeneity in shoot density, leaf morphology and biomass in fragmented patches. Genetic variability in populations corresponds to the formation of 3 sub-clusters, in the diverse impacted zones (north, centre and south), being correlated to the geographical distance between sites. AMOVA estimated a high genetic variation showing 43.05% individual differences within populations with a marked differentiation among the populations (56.9%) indicated by Fst value (0.57). These results revealed the role of the genetic structure of seagrasses for determining selectivity of fragmented habitat, in response to natural drivers. They showed that site-specific self-recruitment is related to biodiversity capacity and to the geo-morphological characteristic of the coast.
Starting Page	1
Ending Page	19
Page Count	19
File Format	PDF HTM / HTML
DOI	10.3897/italianbotanist.9.46426
Volume Number	9
Alternate Webpage(s)	https://italianbotanist.pensoft.net/lib/ajax_srv/generate_pdf.php?document_id=46426&file_id=370952&readonly_preview=1
Alternate Webpage(s)	https://doi.org/10.3897/italianbotanist.9.46426
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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