… the extinction risk of species to intrinsic and extrinsic factors have … Species with narrow diet
breadths are more vulnerable … discarded taxa-traits with less than three data points for each …

… extinction, and even data on basic biology [4]. Consequently, extremely few (less than 2%)
insect species … due to shifts in voltinism and biotic factors such as prey availability and size …

… species’ rarity and its extinction risk, we advocate using thresholds that are biologically based
and related to the vulnerability … of less than 1000 individuals to define a “small” population. …

… , thereby reducing extinction risk, other factors may complicate the … implications from the
perspective of biological conservation. … vulnerability and contemporary extinction risk, we find a …

… We ask whether extant vertebrate species with the smallest … degree of extinction vulnerability
of species at the lower bound … Clarification of the factors that influence the upper constraints …

… the sum of risk factors threatening each species to provide a … species between small geographic
range size and extinction … to shape extinction risk and affect ecological trait vulnerability. …

… sensitive to data limitations, we encourage similar studies at … factors such as habitat
change and fragmentation, biological … explicit factors to determine how anthropogenic factors …

… vortex is a well-known concept in conservation biology that … ), Species 1 faces high extinction
risk because its small, … represent all factors that contribute to species vulnerability. They …

… and vulnerable as threatened species (ie, species with high … Several key factors may explain
our findings. First, many new … that species extinction risk is mainly determined by biological …

… should focus on small-ranged cetaceans and species living in … of extinction risk among
species, and various factors were … showing weak correlations with the risk categories of species (…