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Article Reference Spatiotemporal variation and sediment retention effects on nematode communities associated with Halimeda opuntia (Linnaeus) Lamouroux (1816) and Sargassum polyceratium Montagne (1837) seaweeds in a tropical phytal ecosystem
Nematodes play an important role in ecological processes and are one of the most abundant meiofaunal organisms associated with seaweeds. Yet, knowledge on seaweed bed ecosystems is limited. Nematodes associated with Sargassum polyceratium and Halimeda opuntia were compared in two transects, 80 m apart and parallel to the beach line in Cupe Beach, Brazil. The temporal variation during the dry and rainy seasons and the effect of sediment retention by the seaweed on nematode density and composition were investigated. The differences in nematode communities between the two seasons were mainly caused by the increase in density of the most abundant genera in the rainy season. A significant difference was observed between the nematode communities of the two transects for H. opuntia. The nematode communities of both seaweed species did not differ significantly in the same transect. The genus Euchromadora was dominant in both seaweed species. The amount of sediment retained by the seaweeds did not affect the overall nematode density. However, it was positively correlated with the density of Draconema and Euchromadora in both seaweeds, and both genera were exclusively found associated with seaweeds. This result opposes the idea that the more sediment retained by the seaweed, the higher the nematode overall density and the higher the number of nematodes originally coming from the sediment.
Located in Library / RBINS Staff Publications 2016
Article Reference Special animals from a special place? The fauna from HK29A at Predynastic Hierakonpolis
Locality HK29A at Predynastic Hierakonpolis has been identified as a ceremonial center based on archaeological, architectural and macrobotanical data, although alternative functions as a feasting or butchery site have also been proposed. Animal bone assemblages excavated at the locality in the 1980s and in 2002 have been studied and are compared in detail to those from other localities at Hierakonpolis, as well as from other Predynastic sites in Upper and Lower Egypt. The comparisons show that HK29A shares several features with other Upper Egyptian sites, which can be related to their similar ecological settings. The fauna from Hierakonpolis settlement localities in general, including HK29A, show some peculiarities that distinguish them from other Predynastic sites in Upper Egypt, which may be explained by the status of the site as a large and powerful center. More importantly, the comparisons clearly show that the fauna from HK29A has some unique features not shared with any other locality at Hierakonpolis. They are argued to reflect a variety of symbolic roles that animals had, which probably changed throughout the period of use of the locality. Moreover, the faunal remains testify of the high social status of the people taking part in the clearly special activities at HK29A.
Located in Library / RBINS Staff Publications
Article Reference Speciation and evolution of the genus Limnocythere BRADY, 1867 s.s. in the East African Galla and Awassa basins
Located in Library / RBINS Staff Publications
Article Reference Speciation in ancient lake ostracods: comparative analysis of Baikalian Cytherissa and Tanganyikan Cyprideis
Located in Library / RBINS Staff Publications
Article Reference Speciation in ancient lake ostracods: comparative analysis of Baikalian Cytherissa and Tanganyikan Cyprideis
Located in Library / RBINS Staff Publications
Article Reference Speciation in Ancient Lakes - 40 years after J.L. BROOKS. - In: MARTENS, K., GODDEERIS, B. & COULTER, G. (eds.), Speciation in Ancient Lakes
Located in Library / RBINS Staff Publications
Article Reference Species and speciation in ancient lakes – an ostracod perspective. 14th International German Ostracodologists’ Meeting, Cologne
Located in Library / RBINS Staff Publications
Article Reference Species depauperate communities and low abundances of monogenean gill parasites at the edge of the natural distribution range of their cichlid hosts in northern Africa
Located in Library / RBINS Staff Publications 2022
Article Reference Species depauperate communities and low abundances of monogenean gill parasites at the edge of the natural distribution range of their cichlid hosts in northern Africa
Located in Library / RBINS Staff Publications 2023 OA
Inproceedings Reference Species identification of forensically important flies using DNA barcoding
Located in Library / RBINS Staff Publications