| Abstrakt: |
Moreover, grassland specialist species on the MCH are rare; other studies affirm I c i . 90% of species are forest limited, with only I c i . 2% limited to grassland (Dufils, [7]; Joseph & Seymour, [17]). However, as noted by Joseph and Seymour ([18]), that study is flawed, overreporting grassland-limited species and arguing for predominant C SB 4 sb -grazing Malagasy hippos that coevolved with grasslands based on carbon isotope data from "several" African hippos dated to I c i . 1950 (Bond et al., [3]). Extensive empirical research on the Malagasy Central Highlands (MCH) - including multiple papers published over the past few years - does not support the conclusion of the modeling study by Goel et al. ([11]) that forests are "range pinned" to the east of the MCH by an escarpment causing dispersal limitation. Although Goel et al. label these "savanna trees", no MCH trees are unequivocally "savanna trees" (Joseph et al., [15]) and omitting them is likely to favor grassland over forest in model outcomes. [Extracted from the article] |
Plný text