A5025767206- Marine and coastal plant biology
- Marine Biology and Ecology Research
- Coral and Marine Ecosystems Studies
- Coastal wetland ecosystem dynamics
- Polar Research and Ecology
- Marine Bivalve and Aquaculture Studies
- Lichen and fungal ecology
- Paleontology and Stratigraphy of Fossils
- Marine and coastal ecosystems
- Cephalopods and Marine Biology
- Microbial Community Ecology and Physiology
- Echinoderm biology and ecology
- Plant Diversity and Evolution
- Helminth infection and control
- Ocean Acidification Effects and Responses
- Coastal and Marine Management
- Insect-Plant Interactions and Control
- Insect and Pesticide Research
- Marine and fisheries research
- Protist diversity and phylogeny
- Forensic Entomology and Diptera Studies
- Isotope Analysis in Ecology
- Bird parasitology and diseases
- Geology and Paleoclimatology Research
- Insect Pest Control Strategies
National Institute of Water and Atmospheric Research
2015-2024
University of Auckland
2015-2024
Auckland War Memorial Museum
2023
Statistics New Zealand
2023
Victoria University of Wellington
2014-2022
University of Otago
2022
Queens University
2020
Jeju National University
2015
Medical Research Institute of New Zealand
1982-2012
Ecological Consulting (Czechia)
2012
The red algal order Bangiales has been revised as a result of detailed regional studies and the development expert local knowledge floras, followed by collaborative global analyses based on wide taxon sampling molecular analyses. Combined nuclear SSU rRNA gene plastid RUBISCO LSU ( rbc L) for 157 taxa have conducted. Fifteen genera Bangiales, seven filamentous eight foliose, are recognized. This classification includes five newly described two resurrected genera. revision constitutes major...
New Zealand is under increasing pressure from terrestrial and aquatic pests, weeds diseases that threaten the country's ecosystems economy. Ongoing improvement in existing pest management methodologies novel approaches are required response to public concerns about animal welfare, increasingly stringent trade requirements, abolition of groups pesticides resistance as well as, possibly, biological control agents. Surveillance monitoring needed increase chances early interception invasive...
Coralline red algae from the New Zealand region were investigated in a study focused on documenting regional diversity. We present multi-gene analysis using sequence data obtained for four genes (nSSU, psaA, psbA, rbcL) 68 samples. The revealed cryptic diversity at both genus and species levels, confirming providing further evidence of problems with current taxonomic concepts Corallinophycidae. In addition, new Corallinapetra novaezelandiae gen. et sp. nov. is erected material northern...
The genetic diversity of the green algal genus Ulva sensu lato in New Zealand region was surveyed, examining rbcL sequences 581 samples from a wide geographical range. Twenty-four genetically distinct taxa were discovered waters, belonging to three genera–Ulva (19 species), Umbraulva (four species) and Gemina (one species). Of 19 species reported here, 13 could be identified level based on morphological data. remaining six cannot currently assigned known groups due lack close homology with...
Two red algal classes, the Florideophyceae (approximately 7,100 spp.) and Bangiophyceae 193 spp.), comprise 98% of diversity in marine freshwater habitats. These two classes form well-supported monophyletic groups most phylogenetic analyses. Nonetheless, interordinal relationships remain largely unresolved, particular largest subclass Rhodymeniophycidae that includes 70% all species. To elucidate study organelle evolution, we determined sequence 11 mitochondrial genomes (mtDNA) from 5...
Ocean warming (OW) and marine heatwaves (MHWs) rapidly transform ecosystems, especially when they impact keystone or foundation species. Foundation species such as kelps, fucoids corals are highly sensitive to heat stress, which threatens the future of temperate seaweed forests tropical reefs. However, functioning resilience these systems also relies on less conspicuous coralline algae, whose thermal tolerances have gone largely untested. Here, we examined sensitivity four algal morphotypes...
S. Uwai, W. Nelson, K. Neill, W.D. Wang, L.E. Aguilar-Rosas, S.M. Boo, T. Kitayama and H. Kawai. 2006. Genetic diversity in Undaria pinnatifida (Laminariales, Phaeophyceae) deduced from mitochondria genes – origins succession of introduced populations. Phycologia 45: 687–695. DOI: 10.2216/05-66.1To elucidate the genetic brown alga native populations worldwide, to discuss transoceanic introduction processes, we investigated haplotype divergence mitochondrial loci coding region cox3 noncoding...
We examined three species of diminutive Porphyra,Porphyra suborbiculata Kjellman from the North Pacific, Porphyra lilliputiana W. A. Nelson, G. Knight et M. Hawkes South and carolinensis Coll J. Cox western Atlantic. These taxa were compared in terms morphology, habitat data sequence haplotypes nuclear small subunit rDNA (SSU) internal transcribed spacers cistron (ITS). have similar morphologies growth habits, share very type descriptions records. Haplotype variation was found within 11...
Abstract Symphyocladia lithophila sp. nov. is newly described using both morphological and molecular analyses of samples collected from the southeastern coast Korea. The new species characterized by small size, ecorticate thallus, with 8–10 pericentral cells, lacking trichoblasts, having 5–7 segments congenital fusions. S. was observed to be a winter species, producing tetrasporangia December February. Plastid-encoded rbc L sequences were determined in four different locations 21 putative...
The history of a domesticated marine macroalga is studied using archaeological, phylogeographic and population genetic tools. Phylogeographic analyses demonstrated that the cultivated red alga Gracilaria chilensis colonised Chilean coast from New Zealand. Combining archaeological observations with data provided evidence exchanges between Zealand Chile have occurred at least before Holocene, likely end Last Glacial Maximum (LGM) we suggest migration probably via rafting. Furthermore,...
Long‐distance dispersal plays a key role in evolution, facilitating allopatric divergence, range expansions, and species movement response to environmental change. Even that seem poorly suited can sometimes travel long distances, for example via hitchhiking with other, more intrinsically dispersive species. In marine macroalgae, buoyancy enable adults—and diverse hitchhikers—to drift but the evolution of this trait are understood. The southern bull‐kelp genus Durvillaea includes several...
During the past 25 years wheat stem sawfly, Cephus cinctus Nort., has become one of most destructive pests in Prairie Provinces. Annual losses wheat-growing area Saskatchewan have been estimated as high 17 million bushels (King and McDonald, 1944). There are, however, several native parasites this pest, these Bracon cephi (Gahan) [ Microbracon Gahan] is important. In some areas parasite very effective reducing severe sawfly infestations.
Coralline algae (Corallinophycideae) are calcifying red that foundation species in euphotic marine habitats globally. In recent years, corallines have received increasing attention due to their vulnerability global climate change, particular ocean acidification and warming, because of the range ecological functions coralline provide, including provisioning habitat, influencing settlement invertebrate other algal species, stabilising reef structures. Many roles perform, as well responses...
Abstract Human activity is an important driver of ecological and evolutionary change on our planet. In particular, domestication biological introductions have long-lasting effects species’ genomic architecture diversity. However, genome-wide analysis independent introduction events within a single species has not previously been performed. The Pacific kelp Undaria pinnatifida provides such opportunity because it cultivated in its native range Northeast Asia but also introduced to four other...
Research Article| July 01, 1922 Volcanic ash bed in the Ordovician of Tennessee, Kentucky, and Alabama WILBUR A. NELSON Search for other works by this author on: GSW Google Scholar GSA Bulletin (1922) 33 (3): 605–616. https://doi.org/10.1130/GSAB-33-605 Article history received: 23 Feb first online: 02 Mar 2017 Cite View This Citation Add to Manager Share Icon Twitter LinkedIn Tools Get Permissions Site NELSON; Alabama. 1922;; doi: Download citation file: Ris (Zotero) Refmanager EasyBib...
Abstract Adults of B . cephi emerged at the same time as adults their host, wheat stem sawfly, and started to oviposit about mid-July. The second generation emerge between August 5 15. This generation, which was complete in some years, apparently only partial years first continued late season. In most cases larvae Bracon that were present harvest from eggs laid after 1. Most overwintering located lower internodes sawfly-infested stems. Although attacked sawfly stubs sawflies escaped...