Southern Sierra Research Station
Donations deductibleRevenue
$505k
year to 31 December 2024
Expenses
$766k
year to 31 December 2024
Total assets
$277k
$7k liabilities
Net assets
$271k
assets less liabilities
Directors and trustees
4
2.4 years on average
Staff
14
employees, year to 31 December 2024
Left since last filing
0
no seats appear to have opened
Voting members
5
reported in Part VI
Southern Sierra Research Station's network
4 people3 organisationsi4 people and 3 organisations on this map.The large node is the subject of this page. Solid lines are what the register itself records (4). Violet dotted lines (3) are likely: the same full name sits on the current board of another organisation in the same register and region. Form 990 filings give names without a person identifier; SEC insider filings carry a CIK. It may be a different person.The board
4 listediTime on the board is observed from the annual filings: the IRS files no appointment date, so the bar counts years from the first filing the person appears on - a lower bound, not a filed start date. Names are exactly as filed. The IRS publishes no person identifier, so this edition does not yet link a person across organisations in the tables. The network map shows same-name matches as likely links only, never as confirmed.Time served and departures are observed across annual filings. Observed time served is a lower bound - a member may have joined before the first year on record. The organisation reported 5 voting members of its governing body on its latest Form 990 Part VI, which matches the board listed here.| Name | Role as filed | Since | On the board |
|---|---|---|---|
| Bob Barnes | Director, President | 2024 | 2 yrs |
| Chris Spurgeon | Director | 2024 | 2 yrs |
| Melanie Branson | Director, Treasurer | 2024 | 2 yrs |
| Reed Tollefson | Director, Secretary | 2024 | 2 yrs |
Under 5 years5 to 6 years6 years or more
Pay and hours
year to 31 December 2024iFrom Part VII of the Form 990: compensation reported for each officer, director, trustee, key employee and highest-paid staff member, and the average hours a week they report. Most board members are unpaid; a blank means nothing was reported. Pay from related organisations is shown separately.| Name | Title as filed | Hours a week | Pay from the organisation | Related organisations | Other |
|---|---|---|---|---|---|
| Mary Whitfield | Research Director | 40 | $83k | ||
| Katharine Batdorf | Former Chief Operating Officer | 25 | $12k | ||
| Reed Tollefson | Director, Secretary | 1 | $0 | ||
| Melanie Branson | Director, Treasurer | 1 | $0 | ||
| Bob Barnes | Director, President | 1 | $0 | ||
| Chris Spurgeon | Director | 1 | $0 |
About
- Legal name
- Southern Sierra Research Station
- EIN
- 770536154
- Address
- Po Box 1316, Weldon, CA, 93283-1316
- State
- California
- Mission
- The southern sierra research station (ssrs) is a non-profit organization that aims to understand the biological processes that control population sizes and species diversity. The southern sierra research station (ssrs) is located in the(continued on sch. O.) foothills of california's sierra nevada mountains. We aim to understnd the biological processes that control population sizes and... (as filed on the Form 990)
- Activity (NTEE)
- C051 Environment
- IRS classification
- 501(c)03 (tax-exempt under section 501(c)(3) where shown)
- Classified purpose
- Environment
- Size band
- 4 (IRS master file code)
- Formed
- 2000
- Principal officer
- Wendy Walwyn (as named on the Form 990)
- IRS ruling date
- 1 July 2000
- Status
- Code 01 (unconditional exemption)
- Form 990 filings on record
- 6, latest 2024
- IRS Publication 78
- PC (contributions deductible)
Most connected
Longest observed on the filings
≥2years on the filingsBob Barnes
≥2years on the filingsChris Spurgeon
≥2years on the filingsMelanie Branson
≥2years on the filingsReed Tollefson
Latest return
year to 31 December 2024iFigures from the newest Form 990 or 990-EZ in the IRS e-file releases of 2025 and 2026, for the year ending 31 December 2024. US dollars, as filed.- Total assets
- $277k
- Total liabilities
- $7k
- Net assets or fund balances
- $271k
- Contributions and grants received
- $472
- Program service revenue
- $492k
- Employees
- 14
Filed finances
1 yeariTotals as filed on the IRS Form 990 (revenue and expenses), by tax year.| Tax year | Total revenue | Total expenses | Surplus or deficit |
|---|---|---|---|
| 2024 | $505k | $766k | Deficit $261k |
As filed on the IRS Form 990. US dollars.