Definitions have varied, but they have tended to focus on the strategic goals and the socio-economic nature of the concept, to support the marketing of a conservation effort.
Some species such as the Chesapeake blue crab and the Pemba flying fox, the former of which is locally significant to Northern America, have suited a cultural and social context.
The use of a flagship may have limited effect, and the approach may not protect the species from extinction: all of the top ten charismatic groups of animal, including tigers, lions, elephants and giraffes, are endangered.
The geographer Maan Barua noted that metaphors influence what people understand and how they act; that mammals are disproportionately chosen; and that biologists need to come to grips with language to improve the public's knowledge of conservation.
[10][11][12] The use of flagship species has been dominated by large bodied animals,[13] especially mammals,[12] although members of other taxonomic groups have occasionally been used.
[23] A major challenge for the utilization of several flagship species in non-Western contexts is that they may come into conflict with local communities, thereby jeopardizing well-intended conservation actions.
[10] Conservation flagships can be used at broader levels, for example as ecosystems like coral reefs, rainforests or protected areas like the Serengeti or Yellowstone.
This work relates to the biogeography of micro-organisms and uses particular species because "eyecatching "flagships" with conspicuous size and/or morphology are the best distribution indicators".