Funding search · EIN 526043487 · Washington, DC

Washington Biologists' Field Club

A private foundation (files IRS Form 990-PF). Most private foundations do not take unsolicited applications; the route in is usually a program officer.

73
grants reported
$144,097
total given
2022–2025
filing years
$1,378
median grant

Based on grants this organization reported to the IRS for tax years 20222025. This is what they filed, not a complete record of their giving, and recent years may be incomplete because filings lag.

What they fund

assessingspeciesacrossatlanticdiversitygeneticanalysiseffects

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Funding pattern

What this funder pays for, at what size, and how to position adjacent work. Read from their filings, with every number checked against the record.

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Top recipients

Repeat recipients are the strongest signal of whether a funder has an open door or quietly re-funds the same organizations.

  • 2024 Grants Authorized for Future P1 grant · $26,051
  • Poindexter2 grants · $4,999
  • Browne2 grants · $4,981
  • Williams Marra1 grant · $4,930
  • Abbey Yatsko1 grant · $4,857
  • Barry2 grants · $4,688
  • Conkin and Mann1 grant · $4,292
  • Hunter Vandoren1 grant · $3,776
  • Rachel King1 grant · $3,644
  • Schumm1 grant · $3,600

Giving over time

$36,462
2022
$30,000
2023
$49,428
2024
$28,207
2025

Grant history

All 73 reported grants, largest first.

  • $26,051

    2024 Grants Authorized for Future P · Washington, DC · 2024

    Support various research projects such as:evaluating the effects of introduced species on native fish behavior in the potomac riverexploring disease in soft shell clams (myaarenaria) across life stages and environmental read all
  • $4,930

    Williams Marra · Washington, DC · 2022

    More than just a backyard bird: understanding the patterns and drivers to american robin migration

  • $4,857

    Abbey Yatsko · Washington, DC · 2022

    If a tree rots in the forest: linking deadwood decay to greenhouse gas emissions

  • $4,292

    Conkin and Mann · Washington, DC · 2025

    Assessing demographic structure & recovery from a morbillivirus epidemic among tamanend's bottlenose dolphins

  • $4,105

    Browne · Washington, DC · 2023

    Comprehensive survey of bat taxa around plummers island

  • $3,776

    Hunter Vandoren · Washington, DC · 2023

    Is there a lesser of two evils? Castrating parasites of an estuarine crab host in the chesapeake bay along a salinity gradient

  • $3,651

    Barry · Washington, DC · 2024

    Evaluating the effects of introduced species on native fish behavior in the potomac river

  • $3,644

    Rachel King · Washington, DC · 2023

    Investigating differences in soil carbon storage and stabilization by mycorrhizal type and tree diversity

  • $3,600

    Schumm · Washington, DC · 2024

    Evaluating long-term shifts in diet in harvested chesapeake bay fishes

  • $3,560

    Wen Talavera · Washington, DC · 2025

    Assessing hybridization as the driver for diversification of the vitis cinerea complex in the mid-atlantic region

  • $3,556

    Anne Vardo- Zalik · Washington, DC · 2022

    Ranavirus surveillance in eastern fence lizards (sceloporus undulatus) and eastern box turtles (terrapene carolina) in raystown lake, pa

  • $3,427

    Mariana Abarca Anahi Espindola · Washington, DC · 2023

    Conservation genetics of the baltimore checkerspot

  • $3,060

    Dipetto · Washington, DC · 2022

    The effect of environmental heterogeneity on avian diversity along created saltmarshes

  • $3,000

    Minsavage-Davis · Washington, DC · 2025

    Investigating evolutionary patterns and mechanisms of a salt-marsh foundation species in regional

  • $3,000

    Newtoff · Washington, DC · 2025

    The impact of urbanization on eastern bluebird reproductive success and nest site fidelity

  • $2,893

    Poindexter · Washington, DC · 2025

    Fieldwork and conservation genetic analysis of

  • $2,607

    Bernadette Rigley and Amy Johnson · Washington, DC · 2022

    Exploring impacts of regenerative grazing on grassland bird nesting success

  • $2,465

    Abigail Kula · Washington, DC · 2022

    Management timing affects milkweed growth, reproduction and population dynamics

  • $2,388

    Jun Wen · Washington, DC · 2022

    Assessing the taxonomic diversity of hedera (the ivy plant genus) in the mid-atlantic region

  • $2,289

    Thiemkey · Washington, DC · 2025

    The expanding population size, range, and movements of black bears in maryland

  • $2,106

    Poindexter · Washington, DC · 2024

    Fieldwork and conservation genetic analysis of

  • $2,097

    Huysman · Washington, DC · 2025

    Trophic interactions and pest control by insectivorous cavity-nesting birds in working landscapes of virginia

  • $2,070

    Szlavecz Katalin · Washington, DC · 2025

    The enigma of lumbricus friendi, the "other" nightcrawler

  • $2,000

    Harris · Washington, DC · 2023

    The influence of land use and habitat structure on foraging decisions, survival and chemical exposure of american kestrels (falco sparverius)

  • $1,873

    Graham · Washington, DC · 2024

    Color vision in brightly colored crayfishes

  • $1,817

    Sarah Greenberg and Amy Fowler · Washington, DC · 2022

    Is there a lesser of two evils? Castrating parasites of an estuarine crab host in the chesapeake bay along a salinity gradient

  • $1,636

    Shastri · Washington, DC · 2024

    Behavioral and physiological responses of cold and warm tolerant aphaenogaster ants to temperature stress due to climate change

  • $1,567

    Huie · Washington, DC · 2024

    Climbing adaptations of the arboreal green salamander

  • $1,560

    Thexton · Washington, DC · 2024

    Assessing the relative importance of non-indigenous plant species on insect biodiversity in the mid-atlantic region

  • $1,522

    Kula and Sakowski · Washington, DC · 2023

    Plant and microbiome changes across the season and in response to management

  • $1,500

    Christina Espada · Washington, DC · 2022

    Understanding the natural history of amblyomma maculatum in coastal wetland habitats

  • $1,478

    Kula and Sakowski · Washington, DC · 2025

    Plant and microbiome changes across the season and in response to management

  • $1,440

    Woodland · Washington, DC · 2023

    Assessing microplastic trophic pathways through aquatic food webs using stable isotope analysis

  • $1,429

    Tyler Brown · Washington, DC · 2022

    Automated behavioral tracking of mating interactions in mid-atlantic opiliones

  • $1,381

    Brunelle · Washington, DC · 2024

    Exploring disease in soft shell clams (mya arenaria) across life stages and environmental conditions

  • $1,380

    Woodland and Stefanek · Washington, DC · 2024

    The chesapeake bay plume as a trophic subsidizer of coastal juvenile fish production

  • $1,378

    Kaitlin Saunders Paul Leisnham · Washington, DC · 2022

    Unveiling the ecology behind west nile risk: spatio- temporal diversity of adult culex mosquitoes in urban landscapes

  • $1,317

    Venkatesh · Washington, DC · 2023

    Assessing extant populations of the scarlet paintbrush (castilleja coccinea) in mid-atlantic united states to understand its natural history and genetic diversity

  • $1,307

    Shastri · Washington, DC · 2023

    Ranavirus surveillance in eastern fence lizards (sceloporus undulatus) and eastern box turtles (terrapene carolina) in raystown lake, pa

  • $1,259

    Kaitlin Saunders Paul Leisnham · Washington, DC · 2023

    Unveiling the ecology behind west nile risk: spatio- temporal diversity of adult culex mosquitoes in urban landscapes

  • $1,176

    Christina Espada · Washington, DC · 2023

    Understanding the natural history of amblyomma maculatum in coastal wetland habitats

  • $1,158

    Spahn Ryan · Washington, DC · 2022

    The effect of climate change on the phenological relationship between agricultural pests and their parasitoids

  • $1,037

    Barry · Washington, DC · 2025

    Evaluating the effects of introduced species on native fish behavior in the potomac river

  • $1,026

    Joseph Mack · Washington, DC · 2023

    The taxonomy and diet of carnivorous annelids in the potomac river basin

  • $1,020

    Huie · Washington, DC · 2023

    If a tree rots in the forest: linking deadwood decay to greenhouse gas emissions

  • $1,019

    Martha Weiss John Lill · Washington, DC · 2022

    Indirect effects of the brood x periodical cicada emergence on tritrophic interactions

  • $1,000

    Something Rusty · Washington, DC · 2024

    Support documentary film about the wbfc and plummers island

  • $962

    Thexton · Washington, DC · 2022

    Assessing the relative importance of non-indigenous plant species on insect biodiversity in the mid-atlantic region

  • $909

    Leeds · Washington, DC · 2025

    Investigating the impact of winter heatwaves on a rare butterfly across a climatic gradient in maryland

  • $897

    Woodman McGowen · Washington, DC · 2022

    Mitochondrial genetic analysis of two populations of the least shrew, cryptotis parvus (say, 1822), in maryland and virginia

  • $889

    Dubovyk · Washington, DC · 2023

    Exploring impacts of regenerative grazing on grassland bird nesting success

  • $876

    Browne · Washington, DC · 2024

    Comprehensive survey of bat taxa around plummers island

  • $836

    Venkatesh · Washington, DC · 2024

    Assessing extant populations of the scarlet paintbrush (castilleja coccinea) in mid-atlantic united states to understand its natural history and genetic diversity

  • $761

    Lederer · Washington, DC · 2022

    Leaf ties assemble diverse insect communities

  • $689

    Moyer · Washington, DC · 2022

    Monitoring the spatial ecology of the northern mockingbird (mimus polyglottos) across the annual cycle

  • $600

    Marquez · Washington, DC · 2024

    The effectiveness of bodyguard caterpillars in preventing hyperparasitism

  • $592

    Richard Karban Louie H Yang · Washington, DC · 2024

    Asymmetrical inter-brood competition in 17-year periodical cicadas

  • $535

    Lederer · Washington, DC · 2025

    Leaf ties assemble diverse insect communities

  • $521

    Fiore · Washington, DC · 2022

    Resource use and species coexistence in the acorn-dwelling ant community of plummers island

  • $520

    Fiore · Washington, DC · 2023

    Resource use and species coexistence in the acorn-dwelling ant community of plummers island

  • $507

    Jobe Justus Grant Dalton · Washington, DC · 2023

    Migrating marshes: are ungulates facilitating invasive phragmites australis establishment in transitioning coastal forest?

  • $476

    Woodman McGowen · Washington, DC · 2023

    Mitochondrial genetic analysis of two populations of the least shrew, cryptotis parvus (say, 1822), in maryland and virginia

  • $468

    Woodland · Washington, DC · 2022

    Assessing microplastic trophic pathways through aquatic food webs using stable isotope analysis

  • $403

    Dubovyk · Washington, DC · 2024

    Intensity and sources of nest predation along an urban gradient

  • $389

    Martha Weiss John Lill · Washington, DC · 2023

    Indirect effects of the brood x periodical cicada emergence on tritrophic interactions

  • $334

    Dubovyk · Washington, DC · 2025

    Intensity and sources of nest predation along an urban gradient

  • $321

    Brunelle · Washington, DC · 2025

    Exploring disease in soft shell clams (mya arenaria) across life stages and environmental conditions

  • $203

    Goodnight and Fowler · Washington, DC · 2025

    Characterizing multi-level patterns of genetic structure in a mystery parasitic trematode from the potomac and rappahannock rivers

  • $200

    Lederer · Washington, DC · 2023

    Leaf ties assemble diverse insect communities

  • $170

    Martha Weiss John Lill · Washington, DC · 2024

    Indirect effects of the brood x periodical cicada emergence on tritrophic interactions

  • $154

    Richard Karban Louie H Yang · Washington, DC · 2025

    Asymmetrical inter-brood competition in 17-year periodical cicadas

  • $146

    Lederer · Washington, DC · 2024

    Leaf ties assemble diverse insect communities

  • $35

    Abigail Kula · Washington, DC · 2025

    Management timing affects milkweed growth, reproduction and population dynamics

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Source: IRS Form 990-PF, Part XV, as filed by the foundation. These are grants already paid — a record of what this funder backs, not an open call.