Guild
Generalists
26 species tracked. As a group, generalists are -67%Guild trendA mean-index aggregate across the species in this group — the structural direction of the guild, with individual-species noise smoothed out.Full methodology → since 1968.
Guild SignalsNotable signalsLong-arc shifts the engine flags automatically — sustained declines or increases large enough to stand out from year-to-year noise.Full methodology →
guild collapsecomputed indexTrend sourceWhether the figure is our own computed route-weighted index or an official USGS modeled estimate. The current build labels every trend as computed.Full methodology →
Generalists as a group have fallen sharply in surveyed states, down 67% since 1968.
Generalists Population Forecast
If the recent trend holds, Generalists as a group is projected to fall about 46% by 2029 — from 6.6 in 2024 to a central estimate of 3.6 (95% range 0.00–7.3). A 5-year backtest shows a typical error of ±31.4%, with 100% of held-out values landing inside the 95% band.
3.6Projected 2029 indexProjected indexThe central forecast of the abundance index if the recent trend continues. A projection of the current trajectory, not a prediction.Full methodology →
Generalists By State
| Guild trendA mean-index aggregate across the species in this group — the structural direction of the guild, with individual-species noise smoothed out.Full methodology → | ||
|---|---|---|
| Virginia | -77% | 11 |
| West Virginia | -74% | 11 |
| Illinois | -70% | 12 |
| Idaho | -67% | 12 |
| Mississippi | -67% | 12 |
| Missouri | -64% | 12 |
| Kentucky | -63% | 11 |
| New Jersey | -63% | 11 |
| Massachusetts | -62% | 11 |
| Louisiana | -62% | 15 |
| Maine | -61% | 10 |
| South Carolina | -61% | 12 |
| Michigan | -61% | 11 |
| Alabama | -59% | 13 |
| Maryland | -59% | 11 |
| Indiana | -58% | 10 |
| Vermont | -58% | 10 |
| Connecticut | -57% | 11 |
| Tennessee | -57% | 12 |
| North Carolina | -56% | 12 |
| Ohio | -55% | 9 |
| Arkansas | -54% | 11 |
| Iowa | -54% | 11 |
| Minnesota | -54% | 12 |
| Pennsylvania | -54% | 11 |
| Wisconsin | -52% | 11 |
| Texas | -52% | 18 |
| New York | -50% | 11 |
| New Hampshire | -49% | 11 |
| Kansas | -48% | 12 |
| Georgia | -46% | 12 |
| Colorado | -43% | 14 |
| Nebraska | -42% | 12 |
| Florida | -42% | 15 |
| Oklahoma | -41% | 15 |
| Alaska | -36% | 6 |
| South Dakota | -34% | 12 |
| Arizona | -33% | 16 |
| Oregon | -32% | 11 |
| California | -32% | 16 |
| Rhode Island | -29% | 9 |
| Delaware | -28% | 10 |
| Utah | -21% | 13 |
| New Mexico | -16% | 17 |
| Wyoming | -12% | 13 |
| Montana | -5% | 13 |
| Washington | -5% | 11 |
| Nevada | +36% | 12 |
| North Dakota | +56% | 12 |