The crowned sifaka (Propithecus coronatus) is Endangered. It has a large but highly fragmented distribution; its known range extends from the Betsiboka River in the north of Madagascar, to the Mahavavy River in the north-west, and down to the Tsiribihina River in the south-west. The species lives in forest habitats that are highly and increasingly fragmented and are continuously suffering pertu...

Body size is a key sexually selected trait in many animal species. If size imposes a physical limit on the production of loud low-frequency sounds, then low-pitched vocalisations could act as reliable signals of body size. However, the central prediction of this hypothesis--that the pitch of vocalisations decreases with size among competing individuals--has limited support in songbirds. One rea...

Rhinofacial entomophthoramycosis is an uncommon chronic mycotic disease caused by exposure to the organism Conidiobolus coronatus. The authors report a case series of 5 patients with rhinofacial entomophthoramycosis and review the literature. All patients had typical involvement of the rhinofacial area with formation of subcutaneous lesions causing a chronic granulomatous inflammatory response ...

Five new species of the family Pterolichidae are described from two common non-parasitic cuckoo species of the subfamily Crotophaginae (Cuculiformes: Cuculidae) in Brazil: Aniacarus ani sp. n. from the Smooth-billed Ani, Crotophaga ani Linnaeus, A. simplex sp. n., A. robustus sp. n., A. coronatus sp. n. and Aniibius guirae sp. n. from the Guira Cuckoo, Guira guira (Gmelin). A key to all known s...

Hyperaccumulation is an unusual plant response to metaliferous soils. Such soils like those derived from ultramafic rocks, have elevated concentrations of heavy metals, mainly Ni, Cr, Zn and Cd. Most plants growing on these soils exclude metals from their shoots as excessive accumulation of heavy metals is toxic to the majority of plants. However, about 2% of plants growing on metaliferous soil...

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