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Using seafloor image data to build single-taxon and community distribution models for seabed fauna in New Zealand waters. Understanding the spatial distributions of seabed biodiversity is essential for effective management of the effects of human activities including fishing and mining. To improve understanding of seabed fauna distributions, we are developing a new database of benthic invertebrate occurrences in New Zealand waters by assembling quantitative data from all available seabed photographic surveys. By modelling the spatial relationships between taxon occurrences and environmental gradients across the region, we are able to predict the likelihood of individual taxa and communities being present in as-yet unsampled areas. In the first phase of the project, we concentrated on Chatham Rise; a region of high importance to commercial fisheries and with the highest density of available seabed imagery. Predictions from the models developed here are the first abundance-based models of benthic distributions in the New Zealand region and are the best-informed representations of seabed distributions on Chatham Rise to date, providing a resource that will have applications in marine environmental management and ecosystem research. All rasters are in a geotiff format at a 1000 m resolution cell size and projected to WGS 84 / Mercator 41 - EPSG:3994 coordinate system.
Using seafloor image data to build single-taxon and community distribution models for seabed fauna in New Zealand waters. Understanding the spatial distributions of seabed biodiversity is essential for effective management of the effects of human activities. However, existing knowledge of seabed faunal distributions comes overwhelmingly from records of museum specimens and fisheries and research trawl bycatch. Data from such sources have been used to build models that predict species and community distributions on the basis of correlations with environmental gradients but because these models are based on presence-only data from disparate sources and times, their predictions are considered uncertain. To improve understanding of seabed fauna distributions around New Zealand, we are developing a new database of occurrences and population densities based entirely on quantitative data from seabed photographic surveys designed to sample these fauna. By modelling the spatial relationships between taxon occurrences and environmental gradients across the region, we are able to predict the likelihood of individual taxa and communities being present in as-yet unsampled areas. In the first phase of the project, we concentrated on Chatham Rise; a region of high importance to commercial fisheries and with the highest density of existing seabed imagery. The models developed here were the first abundance-based models of benthic distributions in the New Zealand region at these spatial scales. In the second phase, we expanded the domain of the predictive models to encompass Campbell Plateau, in the south-eastern sector the EEZ. Combining data from Chatham Rise and Campbell Plateau in a single dataset of benthic invertebrate taxon occurrences and population densities enabled development of up-dated predictive distribution models for a range of individual invertebrate taxa, as well as models of the spatial variability in overall community composition. Rasters are in a geotiff format at a 1000 m resolution cell size and have their relevant projections written in their files.
This web-based catalogue presents an entry for each of the approximately 850 species of fossil spore or pollen from the New Zealand region that are recorded in the scientific literature. The database has been compiled primarily as a reference tool for paleontologists engaged in biostratigraphic work in New Zealand pre-Pleistocene strata, and provides a snapshot of the present state of nomenclature for this group of fossils. Taxa are arranged according to a morphological classification, to which there is a key in the introductory text. For each species, a detailed synonymy lists significant nomenclatural changes, all published records from New Zealand strata, some important illustrated records from elsewhere, and records which are regarded as misidentifications. The web pages are comprehensively illustrated with previously published images of New Zealand specimens, where possible reproduced from original photographs. Brief notes on natural phylogenetic relationships are also included. DOI:https://doi.org/10.21420/RR97-M152 Cite as: Raine, J. I., Mildenhall, D. C., & Kennedy, E. M. (2011). New Zealand fossil spores and pollen: an illustrated catalogue. 4th edition. GNS Science. https://doi.org/10.21420/RR97-M152
The landmark 518-page publication "Cenozoic Mollusca of New Zealand" by Beu & Maxwell (1990, NZGS Paleontological Bulletin 58) is long out of print. This publication by Beu & Raine (2009, GNS Science Miscellaneous Publication 27) contains revised descriptions and names of all species treated in detail in Paleontological Bulletin 58, arranged in a hypertext format. This guide has been constructed from the text of NZGS Paleontological Bulletin 58, with the figures individually scanned and available alongside the relevant text. Minor changes have been made to the text of morphological descriptions and notes about distribution, but the names of taxa and comparison notes have been extensively updated with taxonomic changes that have been published on Mollusca during the intervening 20 years. DOI:https://doi.org/10.21420/P5FX-VE20 Cite as: Beu, A. G., & Raine, I. J. (2009). Revised descriptions of New Zealand Cenozoic Mollusca from Beu and Maxwell (1990). GNS Science. https://doi.org/10.21420/P5FX-VE20
Updated DSDP, ODP and IODP borehole locations, related metadata and links back to host site data repositories. Generated from kml files available at http://www.iodp.org/borehole-map