← Search

Data · collection

Cloacal and rectal samples collected from Adelie penguins, south polar skuas and Weddell seals in the Ross Sea region

Listed in NASA Earthdata CMR

Genetic data has revealed that endemism exists within the microbial world.

Description

Antarctica is physically separated from the rest of the world and has a short history of human activity which may appear to have limited the introduction of pathogens. There is a lack of knowledge about the route new micro-organisms may take if introduced to naive Antarctic host populations.

We used genetic distances between populations of benign gastrointestinal bacteria to model the pattern of transmission of bacteria around the Ross Sea Region, to provide insight into the evolution of gut micro-organisms in the Ross Sea megafauna. Cloacal samples were collected from Adelie penguins (Pygoscelis adeliae), Emperor penguins (Aptenodytes forsteri) and South Polar Skuas (Catharacta maccormicki) and rectal samples were collected from Weddell seals (Leptonychotes weddellii) at several sites in the Ross Sea Region.

Read the rest (2 more)

Feather samples were also collected from birds that were swabbed and water and soil samples were collected from the breeding grounds. Bacteria from these samples will be identified from sequences (PCR) for 16S. The information was used to establish an inventory of gastro intestinal bacteria that occur and to investigate micro-organism transfer between the environment, humans and other species.

We also measured the extent of genetic intraspecific variation in the bacteria collected from different hosts to determine the extent of connections between bacteria parasitizing host species and host populations. Sites visited for samples include Cape Hallett, Cape Adare, Cape Wheatstone, Cotter Cliffs, Cape Royds, Cape Bird, Cape Crozier, Hutton Cliffs, Turtle Rock, Strand Moraines, Marble Point, the Sea ice of McMurdo Sound, Little Razorback Island, Turks Head, White Island and Tent Island.

Links

Get the data

  • ncbi.nlm.nih.gov ↗

    GENBANK: The publication lists all of the Accession Numbers from this project. Please use in conjunction.

    download · from NASA CMR

Catalogue records · 2

Topics

Provenance · 1 source records, 11 field assertions
SourceKeyLast seenRaw
NASA Earthdata CMRC1214621877-SCIOPS15 d agoJSON v1
FieldAssertionExtractorEvidence
access_levelsource · NASA CMRconnector:nasa_cmr@1.0.0
concepts[measured_variable].gcmd:earth-science/biological-classification/animals-invertebrates/arthropodssource · NASA CMRconnector:nasa_cmr@1.0.0
concepts[measured_variable].gcmd:earth-science/biological-classification/animals-vertebrates/birds/penguinssource · NASA CMRconnector:nasa_cmr@1.0.0
concepts[platform].gcmd_platform:field-investigationsource · NASA CMRconnector:nasa_cmr@1.0.0
concepts[platform].gcmd_platform:field-surveyssource · NASA CMRconnector:nasa_cmr@1.0.0
concepts[platform].gcmd_platform:ground-based-observationssource · NASA CMRconnector:nasa_cmr@1.0.0
descriptionsource · NASA CMRconnector:nasa_cmr@1.0.0/umm/Abstract
spatialsource · NASA CMRconnector:nasa_cmr@1.0.0/umm/SpatialExtent
temporalsource · NASA CMRconnector:nasa_cmr@1.0.0/umm/TemporalExtents
titlesource · NASA CMRconnector:nasa_cmr@1.0.0/umm/EntryTitle
version_labelsource · NASA CMRconnector:nasa_cmr@1.0.0