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

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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:
Not Available
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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Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report:
Not Available
Logical_Consistency_Report:
Not Available
Completeness_Report:
Not Available
Lineage:
Process_Step:
Process_Description:
Not Available
Process_Date: Unknown
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Spatial_Reference_Information:
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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:
Format_Name: Not Available
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name:
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
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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
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