There is a critical weight range for Australia's declining tropical mammals

摘要: Many mammals in Australia's tropical north are severe decline, yet understanding of the drivers this decline is remarkably limited. Recently, Fisher et al. (Global Ecology and Biogeography, 2014, 23, 181−190) examined traits that associated with declining marsupial species northern Australia. They concluded that, region, declines most pronounced smallest (those lowest body mass). This strong contrast to significant occurred earlier central southern Australia before mid 20th century, which were medium-sized species, so-called ‘critical weight range’ (35−5500 g). Here we show have misinterpreted their dataset; Australia, pattern mammal relation mass similar strongly concentrated critical range, suggesting fundamentally between south.