New Zealand Terrestrial Biocomplexity Survey
Dernière version Publié par SCAR - Microbial Antarctic Resource System le 10 septembre 2015 SCAR - Microbial Antarctic Resource System

The New Zealand Terrestrial Antarctic Biocomplexity Survey (nzTABS) is the largest and most comprehensive interdisciplinary landscape-scale study of terrestrial biology ever undertaken in Antarctica, incorporating fieldwork of 1500+ person days in 6 of the Dry Valleys (total area of 6500 km2), strategic sampling of over 1200 sites designed to encompass the landscape heterogeneities in the ecosystem, and a range of high-resolution remote sensing data. The central goal of nzTABS is to determine the primary abiotic drivers of biodiversity in the Dry Valleys, one of few ecosystems where such undertaking can be achieved. With the aid of a comprehensive GIS framework, we are on track to achieve this goal by examining community microbial sequence data in conjunction with a broad range of physicochemical parameters. This project currently involves over 29 senior investigators from 9 countries that encompass disciplines from geochemistry and geomorphology to population genetics and microbial ecology.

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Cette ressource a été enregistrée sur le portail GBIF, et possède l'UUID GBIF suivante : 0821ab21-c6a5-4757-91c2-1f5e95d0ecda.  SCAR - Microbial Antarctic Resource System publie cette ressource, et est enregistré dans le GBIF comme éditeur de données avec l'approbation du Scientific Committee on Antarctic Research.

Mots-clé

Metadata;NZTABS;McMurdo Dry Valley;soil;biocomplexity;microbial;geochemistry;; Metadata

Contacts

Personne ayant créé cette ressource:

S. Craig Cary
Professor
University of Waikato
Private Bag 3150
3240 Hamilton
Waikato
NZ

Personne pouvant répondre aux questions sur la ressource:

S. Craig Cary
Professor
University of Waikato
Private Bag 3150
3240 Hamilton
Waikato
NZ

Personne ayant renseigné les métadonnées:

S. Craig Cary
Professor
University of Waikato
Private Bag 3150
3240 Hamilton
Waikato
NZ

Autres personnes associées à la ressource:

Utilisateur
S. Craig Cary
Professor
University of Waikato
Private Bag 3150
3240 Hamilton
Waikato
NZ
Chercheur Principal
Bryan Storey
Professor
University of Canterbury
Private Bag 4800
Christchurch
NZ
+64-3-364 2368
Curateur des Données
Charles Lee
Research Scientist
University of Waikato
Private Bag 3150
3240 Hamilton
NZ
+648384241
Chercheur Principal
Ian Hogg
Associate Professor
University of Waikato
Private Bag 3150
3240 Hamilton
Waikato
NZ
Chercheur Principal
Allan Green
Professor
University of Waikato
Private Bag 3150
3240 Hamilton
Waikato
NZ
Couverture géographique

McMurdo Dry Valleys

Enveloppe géographique Sud Ouest [-78,41, 159,72], Nord Est [-76,73, 165]
Couverture taxonomique

Pas de description disponible

Domain  Bacteria (Bacteria),  Archaea (Archaea),  Eukaryote (Eukaryote)
Kingdom  Bacteria (Cyanobacteria),  Eukaryote (Protist)
Couverture temporelle
Date de début 2009-01-01
Date de début 2010-01-01
Date de début 2011-01-01
Date de début 2012-01-01
Date de début 2013-01-01
Données sur le projet

Pas de description disponible

Titre New Zealand Terrestrial Biocomplexity Survey
Financement This project was supported through a grants from the Foundation for Research, Science and Technology (New Zealand), Antarctica New Zealand, and the Marsden Fund (New Zealand).
Description du domaine d'étude / de recherche McMurdo Dry Valleys, Victoria Land, Antarctica
Description du design The study was a comprehensive survey of the Dry Valley ecosystem and includes collections from all of the major valleys throughout the latitudinal extent of the system.

Les personnes impliquées dans le projet:

Chercheur Principal
Craig Cary
Méthodes d'échantillonnage

Initially a 220 km2 study area, consisting of Miers, Marshall, and Garwood Valleys as well as Shangri-La, was divided into more than 600 geographically and geologically distinct ice-free sectors (hereinafter “tiles”) using remote-sensing data and published soil maps. Tile boundaries were delineated where the combination of geographical and geological variables changed, and on-the-ground assessments were carried out in November 2008 to confirm the reliability of delineations. 554 tiles were chosen for sampling to encompass the entire range of geographical and geological heterogeneity. Sampling of soils and biological communities was carried out over two successive austral summers (January 2009 and January 2010). Surveys were conducted for vegetation (i.e., mosses, lichens, algal and cyanobacterial mats), lithic microbial communities, and invertebrates at each sampling site (verified by GPS to be inside its respective tile), followed by collection of bulk soil samples for additional analyses, including molecular analyses of bacteria (total and cyanobacteria-only) and fungi. In addition, a number of key variables were derived from satellite imagery, including surface soil temperature, a topographically derived ‘wetness index’, and distance to the coast. After quality control, data for 490 samples were included in the analysis.

Etendue de l'étude All samples were collected on foot by hand from each location. All samples were collected during the month of January in each sampling year.
Contrôle qualité All samples were collected using sterile techniques and transferred frozen to the laboratory for continued analysis

Description des étapes de la méthode:

  1. Sample locations were determined as the centroids within each tile.
  2. Soil was collected from the upper 2-4 cm after removal of any larger rocks that were lying on the surface.
Données de collection
Nom de la collection NZTABS_soil
Identifiant de collection nztabs.ictar.aq
Identifiant de la collection parente N/A
Métadonnées additionnelles