Appendix A Characteristics for the 32 subregions covering the lowland rain forest of the canal corridor, Panama. See Figure 1 in text for the location of each subregion. Region Total Area (km2)Forest cover (%)Urban area (%)Agricul. area (%)Annual precipit. (mm)Urban pop. size? Rural pop. density? Topo? Birds richness 119.133.524.524.71525218.769.2118218.9542391400930.39804.322034.434.23025.8165041.372.4134436.239.218271800563.875.73695106.750.617.717.218903659.4104.4386678.6431.24221002304.214.8399752.572.2117.323001744.05.7487828.29104230000.4589946.9297.90.11633415964.00161054.732.230.729.81770136.422.82571155.746.2240.819351256.518.43931266.983.10.111220016750.02.741241320.184.43.16.82250161.31.731111457.389.505.424500041391558.694.80126000041591611.285042550002881767.744037.32441014.72971827.315.40752287020.21351917.84714.421324229.010.516320 40.98.7775.722871903.6246.526221158.24310.63921323818.499.83432252.787.80632500021382373.49201.532000051542411.653.4016.7310000412425101.924.714527503361.014.83702691.751.4021.6320003.547927159.850020310004.54972823.85224183400779.7141.71712949.457.513.52232001386.183.31693021.83529.6303400899.4366.026931 17.3631.12730002786.447.937932111.753.736.122.33500795.957.45137? See Rompr? et al. (2008) for population calculations ? From 1 (flat topography) to 5 (highly variable topography) Appendix B Extant forest bird species in the Panama Canal region showing strong sensitivity to habitat conversion, and having a very limited distribution among subregions (present in 5 subregions or less). Subregion numbers refer to Figure 1. This list does not include species considered extinct from the area (last seen more than 20 years ago). For a complete list of forest bird species present in the Panama Canal region with their sensitivity scores, see Rompr? et al. (2007). Species Scientific name Subregions Status* _________________________________________________________________________ Barred Puffbird Nystalus radiatus 27, 32 Bicolored Hawk Accipiter bicolour 15, 23 V Black-headed Brush-Finch Atlapetes atricapillus 32 Blue-fronted Parrotlet Touit dilectissima 27 V Buff-rumped Warbler Basileuterus fulvicauda 10, 12, 15, 23, 27 Central American Pygmy-Owl Glaucidium griseiceps 14 Crested Eagle Morphnus guianensis 13, 14, 15, 23, 24 E Crimson-bellied Woodpecker Campephilus haematogaster 14, 15, 32 Dull-mantled Antbird Myrmeciza laemosticta 15, 23, 32 Fasciated Tiger-Heron Tigrisoma fasciatum 14, 15 Gray Elaenia Myiopagis caniceps 13, 14, 15, 20 Gray-cheeked Nunlet Nonnula ruficapilla 23, 27 Great Jacamar Jacamerops aurea 12, 14, 15, 23, 24 Green Hermit Phaethornis guy 14, 15, 23, 32 Harpy Eagle Harpia harpyja 14, 15, 22 E Immaculate Antbird Myrmeciza immaculata 23 Olive-backed Quail-Dove Geotrygon veraguensis 15, 22, 23 Ornate Hawk-Eagle Spizaetus ornatus 14, 15 Red-throated Caracara Daptrius americana 8, 14, 15, 23, 25 V Rufous-vented Ground-Cuckoo Neomorphus geoffroyi 6, 14, 15, 17, 23 Russet Antshrike Thamnistes anabatinus 15, 24 Sapayoa Sapayoa aenigma 15, 24 Sepia-capped Flycatcher Leptopogon amaurocephalus 10, 11, 23 V Sirystes Sirystes sibilator 15, 23, 24, 32 Slaty-winged Foliage-Gleaner Philydor fuscipennis 15 Spot-crowned Barbet Capito maculicoronatus 15, 23, 24, 25, 27 V Stripe-breasted Wren Thryothorus thoracicus 22, 23, 24, 25 BR Tawny-capped Euphonia Euphonia anneae 15, 24, 27, 32 V Tawny-faced Quail Rhynchortyx cinctus 15 Uniform Crake Amaurolimnas concolor 14, 15, 23 V White-headed Wren Campylorhynchus albobrunneus 23, 24 V Violet-headed Hummingbird Klais guimeti 15, 32 White-ringed Flycatcher Conopias albovittata 15, 22, 23, 24 White-thighed Swallow Notiochelidon tibialis 15, 22, 23 Wing-banded Antbird Myrmornis torquata 14, 15, 23, 24 * Threatened, endemic, and biome-restricted species for Panama (Angehr 2003): V=vulnerable; E=Endangered; BR=biome restricted. Appendix C Example of two of the piecewise regression equation sets obtained from the modified species-area relationship prediction curves. Set of equation A corresponds to a prediction curve taken from habitat loss scenario Group 1 (i.e. Topography), while the set of equation B corresponds to a prediction curve taken from habitat loss scenario Group 2 (i.e. Habitat loss to Agriculture). The algebraic forms of the piecewise regression equations are described in the Methods. Each set of equations represent the section of the curve which included the two breakpoints (not using the portion of x between the intercept and 98km2); ?1 represents the first breakpoint (lower threshold) while ?2 represents the second breakpoint in the curve (higher threshold). See main text for details. y = 54.72 + 0.14x, if x < ?1 y = (54.72 + 0.14*578.1) + 0.42 (x ? 578.1), if ?1 < x < ?2 y = (54.72 + 0.14*578.1) + 0.42 (682.3 ? 578.1) + 0.06 (x ? 682.3), if x > ?2 y = 27.74 + 0.11x, if x < ?1 y = (27.74 + 0.11*579.9) + 0.60 (x ? 579.9), if ?1 < x < ?2 y = (27.74 + 0.11*579.9) + 0.60 (690.5 ? 579.9) + 0.17 (x ? 690.5), if x > ?2     1 GHISLAIN ROMPR? ET AL.