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Article Reference A new species of Metopocetus (Cetacea, Mysticeti, Cetotheriidae) from the Late Miocene of the Netherlands
Located in Library / RBINS Staff Publications 2016
Article Reference New beaked whales from the late Miocene of Peru and evidence for convergent evolution in stem and crown Ziphiidae (Cetacea, Odontoceti)
Located in Library / RBINS Staff Publications 2016
Article Reference Sawflies (Hymenoptera: Argidae, Pergidae, Tenthredidinidae) from southern Ecuador, with a new record for the country and some ecological data.
Located in Library / RBINS Staff Publications 2016
Article Reference Evidence of a Cooler Continental Climate in East China during the Warm Early Cenozoic
The early Cenozoic was characterized by a very warm climate especially during the Early Eocene. To understand climatic changes in eastern Asia, we reconstructed the Early Eocene vegetation and climate based on palynological data of a borehole from Wutu coal mine, East China and evaluated the climatic differences between eastern Asia and Central Europe. The Wutu palynological assemblages indicated a warm temperate vegetation succession comprising mixed needle- and broad-leaved forests. Three periods of vegetation succession over time were recognized. The changes of palynomorph relative abundance indicated that period 1 was warm and humid, period 2 was relatively warmer and wetter, and period 3 was cooler and drier again. The climatic parameters estimated by the coexistence approach (CA) suggested that the Early Eocene climate in Wutu was warmer and wetter. Mean annual temperature (MAT) was approximately 16°C and mean annual precipitation (MAP) was 800–1400 mm. Comparison of the Early Eocene climatic parameters of Wutu with those of 39 other fossil floras of different age in East China, reveals that 1) the climate became gradually cooler during the last 65 million years, with MAT dropping by 9.3°C. This cooling trend coincided with the ocean temperature changes but with weaker amplitude; 2) the Early Eocene climate was cooler in East China than in Central Europe; 3) the cooling trend in East China (MAT dropped by 6.9°C) was gentler than in Central Europe (MAT dropped by 13°C) during the last 45 million years.
Located in Library / RBINS Staff Publications 2016
Article Reference Ancient and modern DNA reveal dynamics of domestication and cross-continental dispersal of the dromedary
Located in Library / RBINS Staff Publications 2016
Article Reference Spider Stowaways: molecular Data Support the Synonymization of Selenops galapagoensis with Selenops mexicanus (Araneae: Selenopidae) and Indicate Human-Mediated Introduction to the Galapagos Islands
Located in Library / RBINS Staff Publications 2016
Article Reference A revision of the Thyropygus allevatus group. Part V: Nine new species of the extended opinatus subgroup, based on morphological and DNA sequence data (Diplopoda: Spirostreptida: Harpagophoridae)
Located in Library / RBINS Staff Publications 2016
Article Reference Impacts of Climate Change on the Global Invasion Potential of the African Clawed Frog Xenopus laevis
Located in Library / RBINS Staff Publications 2016
Article Reference Field Method for testing Repellency of an Icaridin-Containing Skin Lotion against Vespid Wasps
Located in Library / RBINS Staff Publications 2016
Article Reference Mitogenomics reveals high synteny and long evolutionary histories of sympatric cryptic nematode species
Species with seemingly identical morphology but with distinct genetic differences are abundant in the marine environment and frequently co-occur in the same habitat. Such cryptic species are typically delineated using a limited number of mitochondrial and/or nuclear marker genes, which do not yield information on gene order and gene content of the genomes under consideration. We used next-generation sequencing to study the composition of the mitochondrial genomes of four sympatrically distributed cryptic species of the Litoditis marina species complex (PmI, PmII, PmIII, and PmIV). The ecology, biology, and natural occurrence of these four species are well known, but the evolutionary processes behind this cryptic speciation remain largely unknown. The gene order of the mitochondrial genomes of the four species was conserved, but differences in genome length, gene length, and codon usage were observed. The atp8 gene was lacking in all four species. Phylogenetic analyses confirm that PmI and PmIV are sister species and that PmIII diverged earliest. The most recent common ancestor of the four cryptic species was estimated to have diverged 16 MYA. Synonymous mutations outnumbered nonsynonymous changes in all protein-encoding genes, with the Complex IV genes (coxI-III) experiencing the strongest purifying selection. Our mitogenomic results show that morphologically similar species can have long evolutionary histories and that PmIII has several differences in genetic makeup compared to the three other species, which may explain why it is better adapted to higher temperatures than the other species.
Located in Library / RBINS Staff Publications 2016