Skip to content. | Skip to navigation

Personal tools

You are here: Home
3164 items matching your search terms.
Filter the results.
Item type



































New items since



Sort by relevance · date (newest first) · alphabetically
Article Reference Absence of cadmium excretion and high assimilation result in cadmium biomagnification in a wolf spider
Cd biomagnification in the terrestrial food chain appears to be dependent on the physiological properties of the organisms rather than on their trophic level. Although high Cd body burdens in spiders from the field have been reported many times, experimental verification of the key factors that determine the rate of cadmium accumulation is lacking. We investigated the cadmium assimilation rate in the common wolf spider Pirata piraticus fed with contaminated fruit flies. Spiders were fed for 42 days with contaminated flies, followed by a detoxicification period of 28 days. Every 14 days, a subsample of spiders and flies was taken for Cd determination. It was demonstrated that a high cadmium assimilation (69.5\%) and an excretion rate approaching zero resulted in high Cd concentration factors. The results indicate the importance of spiders in cadmium biomagnification along critical pathways. (C) 2003 Elsevier Science (USA). All rights reserved.
Located in Library / RBINS Staff Publications
Article Reference Absolute dating (14C and OSL) of the formation of coversand ridges occupied by prehistoric man in NW Europe
Located in Library / No RBINS Staff publications
Article Reference Academic capacity building: holding up a mirror.
Located in Library / RBINS Staff Publications
Article Reference Acceptance of two native myrmecophilous species, Platyarthrus hoffmannseggii (Isopoda : Oniscidea) and Cyphoderus albinus (Collembola : Cyphoderidae) by the introduced invasive garden ant Lasius neglectus (Hymenoptera : Formicidae) in Belgium
Located in Library / RBINS Staff Publications
Article Reference Accounting for interspecies and intraspecies variation in swimming performance for fish passage solutions
Across the globe, there are millions of in-stream structures that fragment the world'’s river networks, acting as barriers that can impede the movements of fish. Designing effective solutions to accommodate fish communities requires information about the swimming abilities and behaviours of all species. This should account for different swimming modes, abilities, behaviours, and niches. We investigated the swimming speeds of nine migratory New Zealand species to assess both inter- and intraspecies variation. We then calculated maximum traversable speeds for culverts of a given length, based on the endurance abilities of our lowest performing species (Galaxias maculatus). Our findings reveal significant inter- and intraspecies variation in swimming speeds. Among the species studied, Galaxias brevipinnis, Galaxias argenteus, and Galaxias postvectis were the strongest swimmers. In contrast, Galaxias maculatus was one of the weakest swimmers. Body length positively correlated with Umax indicating that fish passage barriers select against the weakest swimming species, as well as smaller individuals within a species. Maximum water speeds in a culvert must be lower than 0.3 m s−-1, the previously assumed standard rule-of-thumb for New Zealand, to provide adequate passage for a high proportion of a weak-swimming indicator species (Galaxias maculatus). Synthesis and applications: . Previous maximum traversable water speeds for fish passage designs have been based on average swimming ability, but this approach only enables fish that are better than the average swimmers of their species to overcome barriers. This study highlights the importance of evidence-based designs for successful fish passage solutions to account for the ability of all fish. By considering differences between and within species, rather than assuming a “‘one-size-fits-all” ’ approach we can develop more effective passage solutions that better preserve fish communities.
Located in Library / RBINS Staff Publications 2024
Article Reference Acoustic Seafloor Classification Using the Weyl Transform of Multibeam Echosounder Backscatter Mosaic.
Located in Library / RBINS Staff Publications 2021
Article Reference Acoustic stress responses in juvenile sea bass Dicentrarchus labrax induced by offshore pile driving
Located in Library / RBINS Staff Publications
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 Active dispersal is differentially affected by inter- and intraspecific competition in closely related nematode species
Located in Library / RBINS Staff Publications
Article Reference Active dispersal is differentially affected by inter- and intraspecific competition in closely related nematode species
Located in Library / RBINS Staff Publications