Waterbird eggs, Salton Sea - 2004

Frequently-anticipated questions:

• What does this data set describe?
  1. How should this data set be cited?
  2. What geographic area does the data set cover?
  3. What does it look like?
  4. Does the data set describe conditions during a particular time period?
  5. What is the general form of this data set?
  6. How does the data set represent geographic features?
  7. How does the data set describe geographic features?
  8. What biological taxa does this data set concern?
• Who produced the data set?
  1. Who are the originators of the data set?
  2. Who also contributed to the data set?
  3. To whom should users address questions about the data?
• Why was the data set created?
• How was the data set created?
  1. What methods were used to collect the data?
  2. From what previous works were the data drawn?
  3. How were the data generated, processed, and modified?
  4. What similar or related data should the user be aware of?
• How reliable are the data; what problems remain in the data set?
  1. How well have the observations been checked?
  2. How accurate are the geographic locations?
  3. How accurate are the heights or depths?
  4. Where are the gaps in the data? What is missing?
  5. How consistent are the relationships among the data, including topology?
• How can someone get a copy of the data set?
  1. Are there legal restrictions on access or use of the data?
  2. Who distributes the data?
  3. What's the catalog number I need to order this data set?
  4. What legal disclaimers am I supposed to read?
  5. How can I download or order the data?
• Who wrote the metadata?

What does this data set describe?

1. How should this data set be cited?

   Henny, C. J. , Unpublished Material, Waterbird eggs, Salton Sea - 2004:.

   This is part of the following larger work.

   Henny, C.J., T.W. Anderson and J.J. Crayon, Unknown, Organochlorine pesticides, polychlorinated biphenyls, metals and trace elements in waterbird eggs, Salton Sea, California, 2004: Hydrobiologia in press.

2. What geographic area does the data set cover?

   West_Bounding_Coordinate: -116.08

   East_Bounding_Coordinate: -115.58

   North_Bounding_Coordinate: 33.53

   South_Bounding_Coordinate: 33.09

   Description_of_Geographic_Extent:

   Northeast corner (Whitewater River delta) and southeast corner (Davis Road area) of Salton Sea, CA

3. What does it look like?

4. Does the data set describe conditions during a particular time period?

   Beginning_Date: 1985

   Ending_Date: 2004

   Currentness_Reference: date of field visits and dates of source data

5. What is the general form of this data set?

   Geospatial_Data_Presentation_Form: Table (non-digital)

6. How does the data set represent geographic features?
   1. How are geographic features stored in the data set?

   2. What coordinate system is used to represent geographic features?

7. How does the data set describe geographic features?

   Table 1 - Selenium and DDE

   text table (Source: dataset developer)

   DDE

   Concentration of p,p'- DDE (Source: dataset developer)

   Range of values
   Minimum:	0.01
   Maximum:	undetermined maximum
   Units:	g/gram

   N

   Number of specimens (Source: dataset developer)

   Range of values
   Minimum:	1
   Maximum:	undetermined maximum

   Selenium

   Concentration of selenium (Source: dataset developer)

   Range of values
   Minimum:	0.01
   Maximum:	undetermined maximum
   Units:	g/g
   Resolution:	0.01

   Species

   Species of waterbird egg (Source: dataset developer)

   List of bird common names

   Year

   Year of data collection

   Range of values
   Minimum:	1985
   Maximum:	2004

   Table 2 - Shell thickness

   text table (Source: dataset developer)

   % Change

   Percent change in egg shell thickness from pre-DDT era (Source: dataset developer)

   Range of values
   Minimum:	0
   Maximum:	100
   Units:	percent

   N

   Number of specimens

   Range of values
   Minimum:	1
   Maximum:	undetermined maximum

   Species (Location)

   Species of waterbird egg by location (Source: dataset developer)

   List of collection sites by species

   Thickness

   Measurement of shell thickness (Source: dataset developer)

   Range of values
   Minimum:	0.01
   Maximum:	undetermined maximum
   Units:	mm
   Resolution:	0.01

   Years

   Years when collection took place (Source: dataset developer)

   Individual years of ranges of years

   Table 3 - other contaminants

   text table (Source: dataset developer)

   %Lipid

   Percent lipid in egg contents (Source: dataset developer)

   Range of values
   Minimum:	0
   Maximum:	100
   Units:	percent

   %Moisture

   Percent moisture in egg contents

   Range of values
   Minimum:	0
   Maximum:	100
   Units:	percent

   CICH

   Concentration of cis-chlordane (Source: dataset developer)

   Range of values
   Minimum:	0.03
   Maximum:	undetermined maximum
   Units:	g/kg

   CINO

   Concentration of cis-nonachlor (Source: dataset developer)

   Range of values
   Minimum:	0.02
   Maximum:	undetermined maximum
   Units:	g/kg

   DDT

   Concentration of p,p'-DDT (Source: dataset developer)

   Range of values
   Minimum:	0.02
   Maximum:	undetermined maximum
   Units:	g/kg

   dieldrin

   Concentration of dieldrin (Source: dataset developer)

   Range of values
   Minimum:	0.02
   Maximum:	undetermined maximum
   Units:	g/kg

   HCB

   concentration of hexachlorobenzene (Source: dataset developer)

   Range of values
   Minimum:	0.03
   Maximum:	undetermined maximum
   Units:	g/kg

   HE

   Concentration of heptachlor epoxide (Source: dataset developer)

   Range of values
   Minimum:	0.02
   Maximum:	undetermined maximum
   Units:	g/kg

   Mirex

   Concentration of Mirex (Source: dataset developer)

   Range of values
   Minimum:	0.07
   Maximum:	undetermined maximum
   Units:	g/kg

   OCS

   Concentration of octachlorostyrene (Source: dataset developer)

   Range of values
   Minimum:	0.05
   Maximum:	undetermined maximum
   Units:	g/kg

   OXY

   Concentration of oyxcholordane (Source: dataset developer)

   Range of values
   Minimum:	0.04
   Maximum:	undetermined maximum
   Units:	g/kg

   PCBs

   Concentration of total polychloronated biphenlys (Source: dataset developer)

   Range of values
   Minimum:	undetermined minimum
   Maximum:	undetermined maximum
   Units:	g/kg

   QCB

   Concentration of pentachlorobenzene (Source: dataset developer)

   Range of values
   Minimum:	0.04
   Maximum:	undetermined maximum
   Units:	g/kg

   Species

   Waterbird species (number of specimens) (Source: dataset developer)

   List of species

   HCH

   Concentration of hexachlorocyclohexane (Source: dataset developer)

   Range of values
   Minimum:	0.02
   Maximum:	undetermined maximum
   Units:	g/kg

   TRCH

   Concnetration of trans-chlorodane (Source: dataset developer)

   Range of values
   Minimum:	0.02
   Maximum:	undetermined maximum
   Units:	g/kg

   TRNO

   Concentration of trans-nonachlor (Source: dataset developer)

   Range of values
   Minimum:	0.05
   Maximum:	undetermined maximum
   Units:	g/kg

8. What biological taxa does this data set concern?

   Taxonomy:

   Keywords/Taxon:

   Taxonomic_Keyword_Thesaurus: None

   Taxonomic_Keywords: birds

   Taxonomic_Keywords: Great Egret

   Taxonomic_Keywords: Black-crowned Night-heron

   Taxonomic_Keywords: American Avocet

   Taxonomic_Keywords: Black-necked Stilt

   Taxonomic_Classification:

   Taxon_Rank_Name: Kingdom

   Taxon_Rank_Value: Animalia

   Taxonomic_Classification:

   Taxon_Rank_Name: Phylum

   Taxon_Rank_Value: Chordata

   Taxonomic_Classification:

   Taxon_Rank_Name: Sub Phylum

   Taxon_Rank_Value: Vertebrata

   Taxonomic_Classification:

   Taxon_Rank_Name: Class

   Taxon_Rank_Value: Aves

Who produced the data set?

1. Who are the originators of the data set? (may include formal authors, digital compilers, and editors)
   • C. J. Henny

2. Who also contributed to the data set?

3. To whom should users address questions about the data?
   Henny, C.J.
   US Geological Survey Forest and Rangeland Ecosystem Science Center
   3200 SW Jefferson Way
   Corvallis, OR 97331
   

   (541) 757-4840 (voice)
   

Why was the data set created?

Data were collected to determine if contaminant concentration had changed from an earlier sampling period (early 1980s and early 1990s)

How was the data set created?

1. What methods were used to collect the data?

   Method 0 of 1

   Type: Field

   Eggs were collected from nests which were marked for"id". Nests were observed at weekly intervals to determine the number of young produced at each nest. Eggs collected were analyzed for a series of contaminants.

   Reference:

   From what previous works were the data drawn?

   How were the data generated, processed, and modified?

   Date: Unknown (process 1 of 1)

   Orginal data collection, no process steps

   What similar or related data should the user be aware of?

How reliable are the data; what problems remain in the data set?

1. How well have the observations been checked?

   No tests for attribute accuracy were conducted

2. How accurate are the geographic locations?

3. How accurate are the heights or depths?

4. Where are the gaps in the data? What is missing?

   Entire colony was observed for night-herons and great egrets. For stilts and avocets a sample of nests was monitored at the same locations studied in earlier years.

5. How consistent are the relationships among the observations, including topology?

   Laboratory QA/QC information is available from data originator

How can someone get a copy of the data set?

Are there legal restrictions on access or use of the data?

Access_Constraints: None

Use_Constraints: None

Who wrote the metadata?

Dates:

Last modified: 16-Aug-2006
Last Reviewed: 23-Aug-2006

Metadata author:

Henny, C.J.
US Geological Survey Forest and Rangeland Ecosystem Science Center
3200 SW Jefferson Way
Corvallis, OR 97331

(541) 757-4840 (voice)

Metadata standard:

FGDC Biological Data Profile of the Content Standard for Digital Geospatial Metadata (FGDC-STD-001.1-1999)