The Caribbean waters of Venezuela are composed by a large variety of habitats, with over 2800 km of coastline, islands, and islets. This area is a transitional zone between two main biogeographic provinces, the Caribbean and the Brazilian, separated by the fresh water outflows of the Orinoco and Amazon rivers, and is therefore expected to be an area of high species diversity. However, concerning the study of molluscs, Venezuela is probably the poorest known region in the Caribbean. The best compilation of opisthobranch species known in Venezuela was produced almost a decade ago, mentioning the occurrence of 57 species, plus seven determined only to genus level. In this work, 134 species are reported for Venezuela (71 are illustrated), representing about 40 % of the entire diversity of opisthobranchs known in the Caribbean. Among the species occurring in Venezuela, 49 have here the southern limit of their distribution range and only one the northern limit. Forty-six species are recorded for the first time to the country and one is a new record for the Caribbean Sea, namely Placida cremoniana. In addition, the distribution and ecology of the species are given based in literature and new data.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.11646/zootaxa.4034.2.1 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Drought tolerance as an evolutionary precursor to frost and winter tolerance in grasses.
Evolution
January 2025
Department of Ecology, Environment and Plant Sciences, Stockholm University, Stockholm, Sweden.
Accumulating evidence is suggesting more frequent tropical-to-temperate transitions than previously thought. This raises the possibility that biome transitions could be facilitated by precursor traits. A wealth of ecological, genetic and physiological evidence suggests overlap between drought and frost stress responses, but the origin of this overlap, i.
View Article and Find Full Text PDFDiversity patterns and knowledge gaps of Atlantic Forest epiphyllous bryophytes: a highly neglected group.
Ann Bot
January 2025
Laboratório de Ecologia e Biogeografia de Plantas, Departamento de Biodiversidade, Setor Palotina, Universidade Federal do Paraná, Rua Pioneiro, 2153, Jardim Dallas, CEP 85950 000, Palotina, Paraná, Brazil.
Background: Epiphyllous bryophytes are a group of plants with complex adaptations to colonize the leaves of vascular plants and are considered one of the most specialized and sensitive groups to environmental changes. Despite their specificity and ecological importance, these plants represent a largely neglected group in relation to scientific research and ecological data. This lack of information directly affects our understanding of biodiversity patterns and compromises the conservation of this group in threatened ecosystems.
View Article and Find Full Text PDFL-carnitine protects against oxidative damage and neuroinflammation in cerebral cortex of rats submitted to chronic chemically-induced model of hyperphenylalaninemia.
Metab Brain Dis
January 2025
Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade Federal do Rio Grande do Sul, Avenida Ipiranga, 2752, Porto Alegre, CEP 90610-000, RS, Brazil.
Phenylketonuria is a genetic disorder characterized by high phenylalanine levels, the main toxic metabolite of the disease. Hyperphenylalaninemia can cause neurological impairment. In order to avoid this symptomatology, patients typically follow a phenylalanine-free diet supplemented with a synthetic formula that provides essential amino acids, including L-carnitine.
View Article and Find Full Text PDFBackbone assignment of the N-terminal domain of the A subunit of the Bacillus cereus GerI germinant receptor.
Biomol NMR Assign
January 2025
Department of Molecular Biology and Biophysics, University of Connecticut Health Center, Farmington, CT, 06030, USA.
The nutrient germinant receptors (GRs) in spores of Bacillus species consist of a cluster of three proteins- designated A, B, and C subunits- that play a critical role in initiating the germination of dormant spores in response to specific nutrient molecules. The Bacillus cereus GerI GR is essential for inosine-induced germination; however, the roles of the individual subunits and the mechanism by which germinant binding activates GR function remain unclear. In this study, we report the backbone chemical shift assignments of the N-terminal domain (NTD) of the A subunit of GerI (GerIA).
View Article and Find Full Text PDFBeneficial death: A substantial element of evolution?
Biogerontology
January 2025
Clinic for Heart Surgery (UMH), Martin-Luther-University Halle-Wittenberg, Ernst-Grube-Straße 40, 06120, Halle (Saale), Germany.
If a shortened lifespan is evolutionarily advantageous, it becomes more likely that nature will strive to change it accordingly, affecting how we understand aging. Premature mortality because of aging would seem detrimental to the individual, but under what circumstances can it be of value? Based on a relative incremental increase in fitness, simulations were performed to reveal the benefit of death. This modification allows for continuous evolution in the model and establishes an optimal lifespan even under challenging conditions.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!