Sabrina van de Velde

Sabrina van de Velde
Delft University of Technology | TU

MS

About

48
Publications
12,423
Reads
How we measure 'reads'
A 'read' is counted each time someone views a publication summary (such as the title, abstract, and list of authors), clicks on a figure, or views or downloads the full-text. Learn more
263
Citations
Introduction
The Quaternary Pontocaspian mollusc fauna underwent multiple radiations and extinctions events. The faunas are essential in stratigraphic subdivision and palaeoenvironmental reconstructions. My research is about the mollusc diversity through time to reconstruct environmental drivers. The focus of the mollusc biotic change is on the Black Sea and Caspian Sea basins, during the Late Pleistocene and within Holocene successions.

Publications

Publications (48)
Article
Full-text available
The oriental armyworm, Mythimna separata Walker (Lepidoptera: Noctuidae), is a severe pest of graminaceous crops in Asia and Australia. In this study, we investigated the impacts of Cry2Ab, cantharidin and its analogues (cantharidin-23 and cantharidin-24) on M. separata growth, hydrolytic enzymes and detoxifying enzymes. Differences in weight gain...
Poster
Full-text available
The Pontocaspian region houses a unique anomalohaline lake system that evolved in the past two million years. Its biota became adapted to the dynamic and unusual salinity regimes resulting in the development of a species rich mostly endemic fauna (Kostianoy et al., 2005). Since the beginning of the 20th century anthropogenic activities such as habi...
Article
Biodiversity and conservation assessments rise and fall with taxonomic accuracy. An example of a still largely unresolved taxonomy is found in the Gastropoda of the Caspian Sea. The present paper clarifies the taxonomy of the genus Abeskunus and its three species of anomalohaline gastropods endemic to the Caspian Sea. Based on material from Pleisto...
Article
The sedimentary record of the Caspian Basin is an exceptional archive for the palaeoenvironmental, palaeoclimatic and biodiversity changes of continental Eurasia. During the Pliocene–Pleistocene, the Caspian Basin was mostly isolated but experienced large lake level fluctuations and short episodes of connection with the open ocean as well as the Bl...
Article
Full-text available
The Caspian Sea is an evolutionary island whose rich and endemic fauna have evolved in partial isolation over the past two million years. Baseline studies of pre-20th Century communities are needed in order to assess the severity of the current Caspian biodiversity crisis, which mostly involves invasive species. An inventory of late Holocene shelly...
Article
Latonia seyfriedi, the type species of the genus Latonia, was described by von Meyer (1843) based on an articulated skeleton from the middle Miocene (Serravallian) of Öhningen, Germany. Besides the holotype, four additional articulated skeletons are known from the type locality; all display only the ventral aspect. A similar frog reported by Lartet...
Article
Full-text available
Palaeoecological records are required to test ecological hypotheses necessary for conservation strategies as short-term observations can insufficiently capture natural variability and identify drivers of biotic change. Here, we demonstrate the importance of an integrated conservation palaeobiology approach when making validated decisions for conser...
Article
Full-text available
The native Caspian Sea fauna underwent severe changes since the early 20 th century, mostly due to anthropo-genic activities. However, the nature, magnitude and rate of biodiversity change can only be assessed by comparison with natural baseline settings. A mostly in-situ mollusk fauna retrieved from Late Pleistocene (Hyrcanian, 107 ± 7 ka) deposit...
Article
Full-text available
Defining and recording the loss of species diversity is a daunting task, especially if identities of species under threat are not fully resolved. An example is the Pontocaspian biota. The mostly endemic invertebrate faunas that evolved in the Black Sea – Caspian Sea – Aral Sea region and live under variable salinity conditions are undergoing strong...
Article
Full-text available
Palaeoecological records are required to test ecological hypotheses necessary for conservation strategies as short-term observations can be insufficiently to capture natural variability and identify drivers of biotic change. Here, we demonstrate the importance of an integrated conservation palaeobiology approach to make validated decisions for cons...
Article
Full-text available
The Pontocaspian (Black Sea - Caspian Sea) region has a very dynamic history of basin development and biotic evolution. The region is the remnant of a once vast Paratethys Sea. It contains some of the best Eurasian geological records of tectonic, climatic and paleoenvironmental change. The Pliocene-Quaternary co-evolution of the Black Sea-Caspian S...
Poster
Full-text available
The unique history of connection and disconnection of Pontocaspian basins caused the fauna to adapt to specific salinity regimes. Currently the endemic Caspian fauna is under severe pressure from anthropogenic impact and many species seem to have diappeared. To be able to quantify the current decline, we need a natural baseline of the molluscs dive...
Presentation
Full-text available
The species composition, diversity and abundance of the native Caspian fauna are presently under severe pressure from invasive species and anthropogenic impact. However, the magnitude and rate of diversity decline and abundance loss can only be estimated based on comparison with communities that lived before the onset of the crisis. An in-situ moll...
Article
Full-text available
The present paper details a very diverse non-marine gastropod fauna retrieved from Caspian Pleistocene deposits along the Volga River north of Astrakhan (Russia). During time of deposition (early Late Pleistocene, late Khazarian regional substage), the area was situated in shallow water of the greatly expanded Caspian Sea. The fauna contains 24 spe...
Poster
Full-text available
The Razim–Sinoie lagoon (Fig. 1) is a dynamic coastal lake system that is considered prime habitat of the unique Pontocaspian species. This fauna has adapted to changes in salinity over time but is now under threat. The lake’s salinity depends on relative influx of freshwater from the Danube Delta in the north and influx of mesohaline Black Sea wat...
Poster
Full-text available
The Caspian Sea has been classified as a major biodiversity hotspot for oligohaline gastropods. About ninety species are listed in latest systematic catalogues, with over 90% of them being endemic. However, little information is available on the evolution of the Caspian hotspot. While published data have suggested a rather species-poor ecosystem du...
Poster
Full-text available
Long-term palaeoecological records are needed to test ecological hypotheses involving time, as short-term observations are of insufficient duration to capture natural variability needed for conservation strategies. The Razim–Sinoie Lagoon Complexis a dynamic coastal lake system where unique Pontocaspian species have adapted to changes in salinity o...
Poster
Full-text available
Poster for the PRIDE project Midterm Review by the European Union during Network Training Event in Leiden (The Netherlands). Summary of background and current research of the ESR/PhD candidate Sabrina van de Velde

Network

Cited By

Projects

Projects (6)
Project
Development of the Pontocaspian Taxonomic system (PC-TAX; http://mollusca.myspecies.info/) and the Pontocaspian Information System (PC-IS). http://pontocaspian.eu/