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The IUCN currently rates the greater and puna rheas as near-threatened in their native ranges, while Darwin's rhea is of least concern, having recovered from past threats to its survival. In addition, the feral population of the greater rhea in Germany appears to be growing.
The greater rhea is considered a Near Threatened species according to the IUCN, and they have a decreasing range of about 6,540,000 square kilometres (2,530,000 sq mi). [5] The species is believed to be declining due to increased hunting [ 1 ] and the conversion of central South American grasslands to farmland and ranchland. [ 36 ]
A family of Rhea pennata pennata in the wild in Chile, 2006 Head of a Darwin's rhea at the Edinburgh Zoo. The lesser rhea stands at 90 to 100 cm (35–39 in) tall. Length is 92 to 100 cm (36–39 in) and weight is 15 to 28.6 kg (33–63 lb).
Of the two extant species of rheas recognized by the IUCN Red List, as of 2022, Rhea americana is listed as near threatened, [6] while Rhea pennata is listed as least concern. [7] From 2014 to 2022, the IUCN recognised Rhea tarapacensis as a separate species, and listed it as near threatened in its last assessment in 2020; [ 8 ] in 2022, it was ...
Temporal range: Paleocene ... Genus Rhea Brisson 1760; References This page was last edited on 2 October 2024, at 20:06 (UTC). Text is available under the ...
Human activity has caused major changes to the wildlife of the Pampas. Most big or medium-sized species such as puma, rhea, Capybara, plains viscacha, maned wolf, [4] marsh deer and Pampas deer have lost their habitats especially due to the spread of agriculture and ranching, and are only present in very few relicts of the pampas. [5]
Rhea Lacépède, 1800 non Latham 1790; ... encompassing a vast range of ecosystems from coastal to alpine ... where funds are raised to map the bird's habitat. [61]
A species range map represents the region where individuals of a species can be found. This is a range map of Juniperus communis, the common juniper.. Species distribution, or species dispersion, [1] is the manner in which a biological taxon is spatially arranged. [2]