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Article Reference Contribution of omnidirectional flight traps to assess the ant (Hymenoptera: Formicidae) diversity in an agroforestry system.
Located in Library / RBINS Staff Publications 2023
Article Reference Cryptic diversity and ecosystem functioning: a complex tale of differential effects on decomposition
Marine ecosystems are experiencing accelerating population and species loss. Some ecosystem functions are decreasing and there is growing interest in the link between biodiversity and ecosystem functioning. The role of cryptic (morphologically identical but genetically distinct) species in this biodiversity-ecosystem functioning link is unclear and has not yet been formally tested. We tested if there is a differential effect of four cryptic species of the bacterivorous nematode Litoditis marina on the decomposition process of macroalgae. Bacterivorous nematodes can stimulate or slow down bacterial activity and modify the bacterial assemblage composition. Moreover, we tested if interspecific interactions among the four cryptic species influence the decomposition process. A laboratory experiment with both mono- and multispecific nematode cultures was conducted, and loss of organic matter and the activity of two key extracellular enzymes for the degradation of phytodetritus were assessed. L. marina mainly influenced qualitative aspects of the decomposition process rather than its overall rate: an effect of the nematodes on the enzymatic activities became manifest, although no clear nematode effect on bulk organic matter weight loss was found. We also demonstrated that species-specific effects on the decomposition process existed. Combining the four cryptic species resulted in high competition, with one dominant species, but without complete exclusion of other species. These interspecific interactions translated into different effects on the decomposition process. The species-specific differences indicated that each cryptic species may play an important and distinct role in ecosystem functioning. Functional differences may result in coexistence among very similar species.
Located in Library / RBINS Staff Publications 2016
Article Reference Active dispersal is differentially affected by inter- and intraspecific competition in closely related nematode species (vol 124, pg 561, 2016)
Located in Library / RBINS Staff Publications 2016
Article Reference Bostryx hennahi (Gray, 1828) the largest Chilean bulimulid (Mollusca: Pulmonata) rediscovered among Tillandsia communities in northern Chile
Located in Library / RBINS Staff Publications 2016
Article Reference The land Mollusca of Saint Kitts and Nevis (Lesser Antilles), with description of a new species
Located in Library / RBINS Staff Publications 2016
Article Reference Synopsis of Central Andean Orthalicoid land snails (Gastropoda, Stylommatophora), excluding Bulimulidae
Located in Library / RBINS Staff Publications 2016
Article Reference A new species of Bothriembryon (Mollusca, Gastropoda, Bothriembryontidae) from southeasternmost Western Australia
Located in Library / RBINS Staff Publications 2016
Article Reference Combining mitochondrial DNA and morphological data to delineate four new millipede species and provisional assignment to the genus Apeuthes Hoffman & Keeton (Diplopoda : Spirobolida : Pachybolidae : Trigoniulinae)
Located in Library / RBINS Staff Publications 2022 OA
Article Reference Eating eggplants as a cucurbit feeder: Dietary shifts affect the gut microbiome of the melon fly Zeugodacus cucurbitae (Diptera, Tephritidae)
Located in Library / RBINS Staff Publications 2022
Article Reference The palaeoecological conditions of the tidal channel network of the Zwin region (Flanders, Belgium)
The northeastern coastal plain of Belgium was a well-developed region during the late medieval period when Bruges and a series of smaller harbours became connected to the North Sea via the Zwin tidal channel. Yet, ecological data related to the evolution of the regional environment of the former Zwin region are still lacking. Diatoms, pollen, and macrobotanical remains have been studied for the first time from two cores drilled in the surroundings of the lost harbour of Hoeke. The sediments in both cores were deposited in four successive tidal channel systems spanning the pre-Roman to late medieval periods. Marine tychoplanktonic and planktonic diatoms were dominant and confirmed the presence of open marine tidal channels, while marine epipsammic diatoms were specific to channel deposits (systems 1 and 4) and marine epipelic diatoms characterised channel and accretion deposits (systems 2 and 3). The sediments of the late medieval Zwin main channel and tributary (system 4) are both characterised by marine tychoplanktonic and epipsammic species. The palynomorphs were typical of marine tidal deposits and (reworked) peat, while macroremains pointed to freshwater plants growing in the vicinity. The palynomorphs (system 4) suggest a more open landscape associated with the extensive reclamation and embankment of the Zwin region. Diatoms in the superjacent tidal deposits indicate that the late medieval Zwin silted up rapidly. Keywords : Late Holocene, palynology, diatom analysis, tidal channel system, medieval harbour
Located in Library / RBINS Staff Publications 2024