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Registros recuperados: 6
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A molecularly based phylogeny reconstruction of mushroom corals (Scleractinia: Fungiidae) with taxonomic consequences and evolutionary implications for life history traits Naturalis
Gittenberger, A.; Reijnen, B.T.; Hoeksema, B.W..
The phylogenetic relationships of the Fungiidae, a family of predominantly free-living, zooxanthellate, reef corals, were studied by sequencing a part of the mitochondrial Cytochrome Oxidase I (COI) and the complete ribosomal Internal Transcribed Spacers (ITS) I & II of specimens from various locations in the Indo- West Pacific. Some sequences were retrieved by using fungiidspecific primers on DNA-extracts from parasitic gastropods living with these corals. The analyses were performed both including and excluding intraspecific variation to investigate the potential effect of saturation. Even though the present molecular phylogeny reconstructions largely reflect those based on morphological characters, there are some distinct differences. Three major...
Tipo: Article / Letter to the editor Palavras-chave: COI; Evolutionary history; ITS 1 & 2; Maximum coral size; Polystomatism; Reproduction strategy; 42.72.
Ano: 2011 URL: http://www.repository.naturalis.nl/record/376596
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First observations of attempted nudibranch predation by sea anemones Naturalis
Meij, S.E.T. van der; Reijnen, B.T..
On two separate occasions during fieldwork in Semporna (eastern Sabah, Malaysia), sea anemones of the family Edwardsiidae were observed attempting to feed on the nudibranch species Nembrotha lineolata and Phyllidia ocellata. These are the first in situ observations of nudibranch predation by sea anemones. This new record is compared with known information on sea slug predators.
Tipo: Article / Letter to the editor Palavras-chave: Actiniaria; Coral reef; Nudibranchia; Polyceridae; Phylidiidae.
Ano: 2011 URL: http://www.repository.naturalis.nl/record/409039
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Fish, fans and hydroids: host species of pygmy seahorses Naturalis
Reijnen, B.T.; Meij, S.E.T. van der; Ofwegen, L.P. van.
An overview of the octocoral and hydrozoan host species of pygmy seahorses is provided based on literature records and recently collected field data for Hippocampus bargibanti, H. denise and H. pontohi. Seven new associations are recognized and an overview of the so far documented host species is given. A detailed re-examination of octocoral type material and a review of the taxonomic history of the alcyonacean genera Annella (Subergorgiidae) and Muricella (Acanthogorgiidae) are included as baseline for future revisions. The host specificity and colour morphs of pygmy seahorses are discussed, as well as the reliability of (previous) identifications and conservation issues.
Tipo: Article / Letter to the editor Palavras-chave: Acanthogorgiidae; Alcyonacea; Annella; Anthozoa; Hippocampus; Host specificity; Hydrozoa; Indo-Pacific; Muricella; New associations; Octocorallia; Subergorgiidae.
Ano: 2011 URL: http://www.repository.naturalis.nl/record/409047
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Host specificity and phylogenetic relationships among Atlantic Ovulidae (Mollusca: Gastropoda) Naturalis
Reijnen, B.T.; Hoeksema, B.W.; Gittenberger, E..
Ovulid gastropods and their octocoral hosts were collected along the leeward coast of Curaçao, Netherlands Antilles. New molecular data of Caribbean and a single Atlantic species were combined with comparable data of Indo-Pacific Ovulidae and a single East-Pacific species from GenBank. Based on two DNA markers, viz. CO-I and 16S, the phylogenetic relationships among all ovulid species of which these data are available are reconstructed. The provisional results suggest a dichotomy between the Atlantic and the Indo-Pacific taxa. Fully grown Simnialena uniplicata closely resembles juvenile Cyphoma gibbosum conchologically. Cymbovula acicularis and C. bahamaensis might be synonyms. The assignments of Caribbean host species for Cyphoma gibbosum, C....
Tipo: Article / Letter to the editor Palavras-chave: Anthozoa; Alcyonacea; Caribbean; Curaçao; Molecular phylogeny; Symbiosis; 42.73.
Ano: 2010 URL: http://www.repository.naturalis.nl/record/336926
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Phylogenetic position and taxonomy of Cycloseris explanulata and C. wellsi (Scleractinia: Fungiidae): lost mushroom corals find their way home Naturalis
Benzoni, F.; Arrigoni, R.; Stefani, F.; Reijnen, B.T.; Montano, S.; Hoeksema, B..
The scleractinian species Psammocora explanulata and Coscinaraea wellsi were originally classified in the family Siderastreidae, but in a recent morpho-molecular study it appeared that they are more closely related to each other and to the Fungiidae than to any siderastreid taxon. A subsequent morpho-molecular study of the Fungiidae provided new insights regarding the phylogenetic relationships within that family. In the present study existing molecular data sets of both families were analyzed jointly with those of new specimens and sequences of P. explanulata and C. wellsi. The results indicate that both species actually belong to the Cycloseris clade within the family Fungiidae. A reappraisal of their morphologic characters based on museum specimens and...
Tipo: Article / Letter to the editor Palavras-chave: COI; Coscinaraea wellsi; Psammocora explanulata; RDNA; 42.72.
Ano: 2012 URL: http://www.repository.naturalis.nl/record/421558
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Unforeseen importance of historical collections as baselines to determine biotic change of coral reefs: the Saba Bank case Naturalis
Hoeksema, B.W.; Land, J. van der; Meij, S.E.T. van der; Ofwegen, L.P. van; Reijnen, B.T.; Soest, R.W.M. van; Voogd, N.J. de.
Botanical and zoological collections may serve as archives for historical ecological research on the effects of global change and human impact on coral reef biota. Museum collections may harbour old specimens of reef-dwelling species that have become locally extinct. Such collections also help to determine whether early records of invasive species can be obtained from times when they were not yet recognized as such. A case study (2006) involving Saba Bank, Caribbean Netherlands (former Netherlands Antilles), suggests that the coral reef fauna here may have become impoverished when compared with data obtained during an earlier expedition in 1972. However, the 1972 sampling may have been incomplete, as it was performed by professional divers who were not...
Tipo: Article / Letter to the editor Palavras-chave: Biodiversity; Global change biology; Historical ecology; Invasive species; Local extinctions; Natural history museums.
Ano: 2011 URL: http://www.repository.naturalis.nl/record/409031
Registros recuperados: 6
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