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Article Reference Taxonomic revision of Strandesia s.s. (Crustacea, Ostracoda) from four Brazilian floodplains, with the description of three new species
Located in Library / RBINS Staff Publications 2020
Article Reference Taxonomic revision of the jumping Goblin Spiders of the genus Orchestina Simon, 1882, in the Americias (Araeneae: Oonopidae)
Located in Library / RBINS collections by external author(s)
Article Reference Taxonomy of the heavily exploited Indo-Pacific sandfish complex (Echinodermata: Holothuriidae)
Two commercially valuable holothurians, the sandfish and golden sandfish, vary in colour and have a confused taxonomy, lending uncertainty to species identifications. A recent molecular study showed that the putative variety Holothuria (Metriatyla) scabra var. versicolor Conand, 1986 (‘golden sandfish’) is a distinct species from, but could hybridize with, H. (Metriatyla) scabra Jaeger, 1833 (’sandfish’). Examination of the skeletal elements and external morphology of these species corroborates these findings. The identity of H. (M.) scabra is unambiguously defined through the erection and description of a neotype, and several synonyms have been critically re-examined. The nomenclaturally rejected taxon H. (Metriatyla) timama Lesson, 1830 and H. (M.) scabra var. versicolor (a nomen nudum) are herein recognized as conspecific and are allocated to a new species, Holothuria lessoni sp. nov., for which type specimens are described. The holotype and only known specimen of H. aculeata Semper, 1867, has been found and is redescribed. It is considered to be a valid species. Taxonomic clarification of this heavily exploited species complex should aid its conservation and permit species-specific management of their fisheries.
Located in Library / RBINS Staff Publications
Article Reference Taxonomy of the monotypic genus Koehleria Cherbonnier, 1988 (Echinodermata: Holothuroidea: Cucumariidae)
Voucher material recently collected from the 2-Mile Reef at Sodwana Bay (Republic of South Africa), allows the evaluation of the monotypic genus Koehleria Cherbonnier, 1988 and its species K. unica Cherbonnier, 1988 collected from Tuléar (Madagascar). Cherbonnier’s (1988) conclusion, that Koehleria is most related to the also monotypic genus Pseudocolochirus Pearson, 1910 is correct, but the differences between Koehleria and Pseudocolochirus are too small to justify the retention of Koehleria. Koehleria is relegated herein to the synonymy of Pseudocolochirus. Such a step decreases the velocity with which monotypic genera are currently described within the Dendrochirotida.
Located in Library / No RBINS Staff publications
Techreport Reference Telemetry for migratory bats – a feasibility study
In recent years, research into the occurrence of bats at the Dutch North Sea has shown that there is regular seasonal migration over sea. However, so far, little is known about their migration ecology, the fatality risks at offshore wind turbines, and the number of individuals migrating over sea. Since the Dutch government wants to boost the further development of wind energy production in the southern North Sea, the Ministry of Economic Affairs commissioned to Rijkswaterstaat a Wind at Sea Ecological Programme (in Dutch: Wozep). This study, as part of the Wozep-project Behaviour and Collision Risk of Bats (Bats_2), investigates how telemetry can be applied to gain insight into migratory movements of bats over land and over sea and individual bat behaviour near and in offshore wind farms. To find out whether it is wise to continue and further develop telemetry research in the context of the Wozep programme, we first identified potential telemetry methods for small bats based on a desk study and selected the most promising method for the application of telemetry. Members of the team attended an international workshop on telemetry in Lund (Sweden) to gather practical technical knowledge, gain insight in data-management standards, and increase their international network. Several field tests were conducted to test the equipment and explore the possibilities of tracking. Finally, suitable locations for bat trapping in bat boxes and for the use of a Heligoland trap were identified. There are several options to track bats with radio telemetry during their migration at the coast and over sea. However, for long-term monitoring of multiple individuals, establishing a grid of stationary receivers is the only feasible option. Eight field tests were carried out to test the performance of the technical infrastructure. Each of the tests was unique and set up to test the signal strength/detection range for a certain type of antenna or a certain transmitter/receiver constellation. We showed that detections over at least 6 km are possible, and likely more than 10 km can be achieved. Precondition is that the receiving stations must be installed at high structures (lighthouses, buildings, masts) or hills, installing them a few meters off ground level will lead to detection ranges just over one km. Furthermore we explored the possibilities of calculating movement tracks with a setup of several receivers using different estimation methods. These experiments indicated that a relatively high accuracy (of c. 100 m) can be reached estimating the location when signals of different receiving stations are combined. It is likely that the accuracy can be improved by estimating the bearings of the received signals based on the signal strength of different antennas. Even further improvement seems possible by assessing the (likely) flight route with a state-space model. There are plenty of locations with bat boxes, especially in the province of Noord-Holland, where potentially hundreds of bats can be captured during migration stopovers, though it is not known how many of these are likely to be migrants. In addition, we identified four locations where actively migrating bats can potentially be captured with an Heligoland trap. In conclusion, we are confident that telemetry can be successfully applied to study migratory movements of bats over land and over sea and individual bat behaviour near and in offshore wind farms. Joining a wildlife tracking system like Motus (Canada) in order to enlarge the data collection, is highly recommended. Motus-members can get detections from both
Located in Library / RBINS Staff Publications 2017
Article Reference Temperature, seasonality and salinity history of the early Eocene North Sea Basin inferred from fish otoliths and mollusks.
Located in Library / RBINS Staff Publications
Article Reference Terrestrial contributions to Afrotropical aquatic food webs: The Congo River case
Located in Library / RBINS Staff Publications 2019
Article Reference The 'Demange drawings': known and unknown malacological contributions of Victor Demange (1870-1940)
Located in Library / RBINS Staff Publications 2016
Article Reference The 8.2 ka event: is it registered in Belgian speleothems?
Located in Library / RBINS Staff Publications
Article Reference The 10,000-year biocultural history of fallow deer and its implications for conservation policy
Over the last 10,000 y, humans have manipulated fallow deer populations with varying outcomes. Persian fallow deer (Dama mesopotamica) are now endangered. European fallow deer (Dama dama) are globally widespread and are simultaneously considered wild, domestic, endangered, invasive and are even the national animal of Barbuda and Antigua. Despite their close association with people, there is no consensus regarding their natural ranges or the timing and circumstances of their human-mediated translocations and extirpations. Our mitochondrial analyses of modern and archaeological specimens revealed two distinct clades of European fallow deer present in Anatolia and the Balkans. Zooarchaeological evidence suggests these regions were their sole glacial refugia. By combining biomolecular analyses with archaeological and textual evidence, we chart the declining distribution of Persian fallow deer and demonstrate that humans repeatedly translocated European fallow deer, sourced from the most geographically distant populations. Deer taken to Neolithic Chios and Rhodes derived not from nearby Anatolia, but from the Balkans. Though fallow deer were translocated throughout the Mediterranean as part of their association with the Greco-Roman goddesses Artemis and Diana, deer taken to Roman Mallorca were not locally available Dama dama, but Dama mesopotamica. Romans also initially introduced fallow deer to Northern Europe but the species became extinct and was reintroduced in the medieval period, this time from Anatolia. European colonial powers then transported deer populations across the globe. The biocultural histories of fallow deer challenge preconceptions about the divisions between wild and domestic species and provide information that should underpin modern management strategies.
Located in Library / RBINS Staff Publications 2023