diet composition during breeding Spring: The Atwater’s prairie chicken diet is composed of leaves, seeds and insects. season 6% insects, 59% According to the US Fish and Wildlife’s recovery plan for this species, the seeds, 35% relative proportions of these food items vary over time. Foliage is dominated broadleaves by broadleaf plants, but may also include grass (young). The proportion of insects in the diet increases in the summer months. Seeds are from native plants as well as cultivated crops, including corn, peanuts and rice. Data were Summer: available from Lehmann (1941) to determine spring and summer diets. 29% insects, 45% seeds, 26% broadleaves Feeding category omnivore mean number of nest attempts/ female/ season mean number of successful broods/ female/ season mean number of fledglings/ fpsn 4.23 Table 5 of Peterson & Silvy (1996) calculated the weighted mean for the successful nest number of chicks/brood prior to brood breakup to be 4.23 from multiple sources during the period from 1937 to 1994. mean number of fledglings/ ARS female/ season (ARS) Annual survival phi Frequency on field Mean: 0.5 Frequency on field of this species is unknown. Individuals may visit Min: 0 agricultural fields. Low (0.1), Medium (0.5) and High (0.9) mean frequency on Max: 1 field values should be considered in a sensitivity analysis of this species. Residency Edge Based on habitat (see Table 2) Passerine? No Precocial/ altricial Precocial Table 7. Lesser prairie-chicken (Tympanuchus pallidicinctus). Species life history parameters Model Code Typical value Rationale/Comments Initiation probability p 0.25 default
diet composition during breeding season Spring: 6% insects, 59% seeds, 35% broadleaves Summer: 29% insects, 45% seeds, 26% broadleaves The Atwater’s prairie chicken diet is composed of leaves, seeds and insects. According to the US Fish and Wildlife’s recovery plan for this species, the relative proportions of these food items vary over time. Foliage is dominated by broadleaf plants, but may also include grass (young). The proportion of insects in the diet increases in the summer months. Seeds are from native plants as well as cultivated crops, including corn, peanuts and rice. Data were available from Lehmann (1941) to determine spring and summer diets. Feeding category omnivore mean number of nest attempts/ female/ season mean number of successful broods/ female/ season mean number of fledglings/ successful nest fpsn 4.23 Table 5 of Peterson & Silvy (1996) calculated the weighted mean for the number of chicks/brood prior to brood breakup to be 4.23 from multiple sources during the period from 1937 to 1994. mean number of fledglings/ female/ season (ARS) ARS Annual survival phi Frequency on field Mean: 0.5 Min: 0 Max: 1 Frequency on field of this species is unknown. Individuals may visit agricultural fields. Low (0.1), Medium (0.5) and High (0.9) mean frequency on field values should be considered in a sensitivity analysis of this species. Residency Edge Based on habitat (see Table 2) Passerine? No Precocial/ altricial Precocial Table 7. Lesser prairie-chicken (Tympanuchus pallidicinctus). Species life history parameters Model Code Typical value Rationale/Comments Initiation probability p 0.25 default
appendix-4-7-supp-1.docx