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Indicator is a genus of near passerine birds in the honeyguide family. The name refers to the behaviour of some species, notably the greater honeyguide , which guide humans to bee colonies so that they can share in the spoils of wax and insects when the nest is broken into.
Index fossils (also known as guide fossils or indicator fossils) are fossils used to define and identify geologic periods (or faunal stages). Index fossils must have a short vertical range, wide geographic distribution and rapid evolutionary trends.
The smallest species by body mass appears to be the green-backed honeyguide, at an average of 10.2 g (0.36 oz), and by length appears to be the Cassin's honeyguide, at an average of 10 cm (3.9 in), while the largest species by weight is the lyre-tailed honeyguide, at 54.2 g (1.91 oz), and by length, is the greater honeyguide, at 19.5 cm (7.7 in).
The greater honeyguide (Indicator indicator) is a bird in the family Indicatoridae, paleotropical near passerine birds related to the woodpeckers. Its English and scientific names refer to its habit of guiding people to bee colonies. Claims that it also guides non-human animals are disputed.
The aim is that the SRLI will aid in the production of a global biodiversity indicator capable of measuring whether the rate of biodiversity loss has been reduced. In addition, it will help to develop a better understanding of which taxonomic groups, realms or ecosystems are deteriorating the most rapidly, why species are threatened, where they are threatened, what conservation actions exist ...
Indicator bacteria themselves may not be pathogenic but their presence in waste may indicate the presence of other pathogens. [1] Similar to how there are various types of indicator organisms, there are also various types of indicator bacteria. The most common indicators are total coliforms, fecal coliforms, E. coli, and enterococci. [2]
The scaly-throated honeyguide is closely related to the spotted honeyguide (Indicator maculatus), of which it shares part of its range. [3] The two species are sympatric in South Sudan and Southwest Uganda. [3] [4] Scaly-throated honeyguides from Southern Somalia to Northeast Tanzania were previously regarded as a separate race (jubaensis). [3]
They are good indicators of invertebrate diversity on dead wood and include many endangered species. Polypores make good indicators because they are relatively easy to find – many species produce conspicuous and long-lasting fruiting bodies – and because they can be identified in the field.