Determination of the unique evolutionary patterns that prevail in the Antarctic springtail (Gomphiocephalus hodgsoni)

Federal Geographic Data Committee (FGDC) Metadata:

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• Data_Quality_Information
• Spatial_Reference_Information
• Distribution_Information
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Identification_Information:

Citation:

Citation_Information:

Originator: Unknown

Publication_Date: Unknown

Title: Determination of the unique evolutionary patterns that prevail in the Antarctic springtail (Gomphiocephalus hodgsoni)

Description:

Abstract:

The energetic budgets (activity) of Antarctic springtails (Gomphiocephalus hodgsoni) was investigated at Cape Bird, Ross Island and the Garwood Valley, McMurdo Dry Valleys to determine the unique genetic, co-evolutionary and metabolic patterns/rates that evolved in polar invertebrates across sites in Antarctica. The activity of arthropods (mites and springtails) was measured with pitfall trapping which determines how activity varies through the day. 10 traps were sunk into the ground at two sites (5 at each site, ~1m apart), vegetated and non-vegetated, and checked twice daily for arthropods. Growth enclosures were used to determine the growth of springtails. Springtails were separated into two different size classes (first season: >250µm and <250µm, second season: >500µm and <500µm) and placed into the enclosures in groups (first season: 30 individiuals, second season: 50 individuals). Photographs were taken of individuals prior to addition to enclosure, at various times throughout the season and at the termination of time in the enclosure. The metabolic rate of individuals was measured with a fibre optic oxygen sensing system to measure drop in oxygen over time within a sealed chamber. Samples were conducted on field fresh samples at various stages throughout the seasons (i.e. between November to end of January to determine change in metabolic rate over time). Each metabolic run lasted for a set period of time (first season: 3 hour period, 12 hour period, second season: 2 hour period) during which percentage oxygen in the chamber was recorded continuously and the drop in oxygen over time calculated from the slope of the resulting graph. Temperature was held constant at 10°C. All individuals were photographed after metabolic rate measurements for later size determination. In addition to these experiments, a heating experiment to determine if an increase in temperature corresponded to an increase in metabolic activity was undertaken. The experiment followed one population of springtails through a temperature transition from 6, 12, 18 and 24°C and three populations that came straight from the field temperature to experimental temperatures. An acclimated experiment was also used where several individuals were incubated at 10°C for a five day period. Metabolic readings were then undertaken. Photographs in both additional experiments were taken before and after measurements. Molecular DNA markers (mtDNA and nuclear) were used to examine haplotypes of samples of multiple individuals.

Purpose:

Not Available

Supplemental_Information:

REFERENCE: McGaughran, A., Torricelli, G., Carapelli, A., Frati, F., Stevens, M.I., Convey, P., Hogg, I.D. 2009. Contrasting phylogeographical patterns for springtails reflect different evolutionary histories between the Antarctic Peninsula and continental Antarctica. Journal of biogeography. doi:10.1111/j.1365-2699.2009.02178.x

Supplemental_Information:

REFERENCE: McGaughran, A., Redding, G.P., Stevens, M.I. and Convey, P. 2009. Temporal metabolic rate variation in a continental Antarctic springtail. Journal of Insect Physiology 55: 130-135.

Supplemental_Information:

REFERENCE: McGaughran, A. Polar evolution: molecular genetic and physiological parameters of Antarctic arthropod populations. 2009. PhD Thesis Massey University. pp 264

Supplemental_Information:

REFERENCE: McGaughran, M., Redding, G.P.P., Stevens, M.I. And Convey, P. 2007. Temporal variation in activity of Gomphiocephalus hodgsoni (Hexapoda: Collembola) at Cape Bird (Ross Island), Antarctica. Second International Symposium on the Environmental Physiology of Ectotherms and Plants; University of Otago, New Zealand, July 2007. (ABSTRACT)

Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 20061129

Ending_Date: 20080123

Currentness_Reference:Unknown

Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 20081223

Ending_Date: 20090120

Currentness_Reference:Unknown

Status:

Progress: Complete

Maintenance_and_Update_Frequency: As needed

Spatial_Domain:

Description_of_Geographic_Extent:

Bounding_Coordinates:

West_Bounding_Coordinate: 166.4383

East_Bounding_Coordinate: 166.4467

North_Bounding_Coordinate: -77.2191

South_Bounding_Coordinate: -77.2222

Spatial_Domain:

Description_of_Geographic_Extent:

Bounding_Coordinates:

West_Bounding_Coordinate: 163.9333

East_Bounding_Coordinate: 163.9333

North_Bounding_Coordinate: -78.0167

South_Bounding_Coordinate: -78.0167

Keywords:

Theme:

Theme_Keyword_Thesaurus: GCMD SCIENCE PARAMETERS

Theme_Keyword_Thesaurus: GCMD PLATFORM

Theme_Keyword_Thesaurus: PROJECT

Theme_Keyword_Thesaurus: ISO TOPIC CATEGORY

Theme_Keyword_Thesaurus: DATA SET LANGUAGE

Theme_Keyword: EARTH SCIENCE > BIOLOGICAL CLASSIFICATION > ANIMALS/INVERTEBRATES > ARTHROPODS > HEXAPODS > ENTOGNATHA

Theme_Keyword: EARTH SCIENCE > BIOSPHERE > ECOLOGICAL DYNAMICS > SPECIES/POPULATION INTERACTIONS > SPECIES LIFE HISTORY

Theme_Keyword: EARTH SCIENCE > BIOSPHERE > ECOLOGICAL DYNAMICS > SPECIES/POPULATION INTERACTIONS > POPULATION DYNAMICS

Theme_Keyword: EARTH SCIENCE > BIOSPHERE > ECOLOGICAL DYNAMICS > ECOSYSTEM FUNCTIONS > RESPIRATION RATE

Theme_Keyword: EARTH SCIENCE > BIOSPHERE > ECOLOGICAL DYNAMICS > ECOSYSTEM FUNCTIONS > OXYGEN DEMAND

Theme_Keyword: GROUND-BASED OBSERVATIONS

Theme_Keyword: LGP > LATITUDINAL GRADIENT PROJECT

Theme_Keyword: EBA > EVOLUTION AND BIODIVERSITY IN THE ANTARCTIC

Theme_Keyword: BIOTA

Theme_Keyword: ENGLISH

Place:

Place_Keyword_Thesaurus: GCMD

Place_Keyword: CONTINENT > ANTARCTICA > CAPE BIRD

Place_Keyword: CONTINENT > ANTARCTICA > GARWOOD VALLEY

Place_Keyword: GEOGRAPHIC REGION > POLAR

Access_Constraints: Not Available

Use_Constraints:

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Point_of_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: ANGELA MCGAUGHRAN

Contact_Position: INVESTIGATOR

Contact_Address:

Address_Type: Mailing and Physical Address

Address: Massey University

City: Palmerston North

Country: New Zealand

Contact_Voice_Telephone: +64 6 350 5515 Ext 7626

Contact_Facsimile_Telephone: +64 6 350 5626

Contact_Electronic_Mail_Address: A.McGaughran@massey.ac.nz

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Attribute_Accuracy_Report:

Not Available

Logical_Consistency_Report:

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Completeness_Report:

Not Available

Lineage:

Process_Step:

Process_Description:

Not Available

Process_Date: Unknown

Spatial_Reference_Information:

Distribution_Information:

Distributor:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: NZ/NZAI/ANZ > Antarctica New Zealand, New Zealand Antarctic Institute, New Zealand

Contact_Person: SHULAMIT GORDON

Contact_Position: DATA CENTER CONTACT

Contact_Address:

Address_Type: Mailing and Physical Address

Address: Antarctica New Zealand

Address: Private Bag 4745

City: Christchurch

Country: New Zealand

Contact_Voice_Telephone: +64 3 358 0200

Contact_Facsimile_Telephone: +64 3 358 0211

Contact_Electronic_Mail_Address: s.gordon@antarcticanz.govt.nz

Resource_Description: K025_2006_2007_NZ

Distribution_Liability:

Not Available

Standard_Order_Process:

Digital_Form:

Digital_Transfer_Information:

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Digital_Transfer_Option:

Online_Option:

Computer_Contact_Information:

Network_Address:

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http://www.antarcticanz.govt.nz/

Access_Instructions:

DATA CENTER URL

Digital_Transfer_Option:

Online_Option:

Computer_Contact_Information:

Network_Address:

Network_Resource_Name:

http://www.allanwilsoncentre.ac.nz

Access_Instructions:

Fees: Not Available

Metadata_Reference_Information:

Metadata_Date: 20051011

Metadata_Review_Date: 20100920

Metadata_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: CEISHA POIROT

Contact_Position: DIF AUTHOR

Contact_Address:

Address_Type: Mailing and Physical Address

Address: Antarctica New Zealand

Address: Private Bag 4745

City: Christchurch

Country: New Zealand

Contact_Voice_Telephone: +64 3 358 0200

Contact_Facsimile_Telephone: +64 3 358 0211

Contact_Electronic_Mail_Address: c.poirot@antarcticanz.govt.nz

Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata

Metadata_Standard_Version: FGDC-STD-001-1998

Metadata_Time_Convention: local time