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Data Analyses All listed species occurring in the United States and/or 'Dust Territories, as of October 1, 1990, are presented in Appendix III. A map is included, indicating the number of listed species by State/Territory. The num- bers identified omit "similarity of ap- pearance" and some extirpated species from the totals identified. As of October 1, 1990, 581 species were listed as endangered or threat- ened in the United States and/or Trust Territories. Table 2 presents the percentage, by taxonomic group, of species listed. These data are also presented graphically in Figure 1. All taxonomic groups are represented. Four hundred and fifty-two of the species have been listed for longer than 3 years. Figure 2 represents the taxonomic breakdown of species list- ings. Species listed in the last three years have been dominated by plants (58%). For the most part, species listed less than three years do not yet have final approved recovery plans. Many do, however, have plans in some stage of development. Recovery outlines are developed within 60 days) of publication of the final rule listing j a species and are submitted to the Director to be used as a guide for ac- tivities until recovery plans are developed. Table 2. Endangered and Threatened Species -Listed by Taxonomic Group Number Group Listed Percentage Plants 239 41% Mammals 49 8% Birds 86 15% Herps* 42 7% Fishes 84 15% Invertebrates 81 14% Total 581 100% * Herps = Reptiles and Amphibians Figure 1. All Listed Species Separated by Taxonomic Group :r<.,.:,:.,,:.::;•:: Mammals (49) Birds (86) Plants Animals 25% (239) (342) Herps' (42) 41% 59% 12% Fishes (84) 25% - Inverts** (81) Listed Species - 24% Animal Groups *Amphibians and Reptiles *`Invertebrates 12 Figure 2. Length of Time on List Separated by Taxonomic Group Number of Species 200 164 150 100 82 72 675 55 50 41 38 26 8 4 4 12 0 Mammals Birds Herps* Fishes Inverts** Plants Taxonomic Group More than 3 years - 3 years or less `Amphibians and Reptiles **Invertebrates