Angraecum pauciramosum, is an epiphytic orchid endemic to Madagascar. The species is known from 110 collections made between 1881 (Perrier 3977) and 2020 (Ambatovy Spirit collection 4077A6100/3). The 110 collections represent 59 occurrences. Twenty collections (19 occurrences) have been recorded in eight protected areas. In addition to these officially protected sites, 67 collections (20 occurrences) have been made in the Ambatovy footprint of a mining project undergoing intense human pressure such as forest clearing. These former occurrences must be considered as extirpated. However, the species has been collected from 11 collections (ten occurrences) located in the conservation zone surrounding the footprint and this forest should be subject to protection in the near future. It is also known from 12 collections (10 occurrences) made from Ankafina, Amparihibe, Ampanadiofanantsy, Angavobe, Mandraka, Ankeramadinika, Andranovery, Sahaviara, and Besalampy in unprotected forests subjected to selective logging, timber harvesting for small-scale subsistence, slash-and-burn agricultural practices (tavy), and wildfire. Eight occurrences outside of the protected areas network are facing forest clearing due to shifting agriculture and forest degradation due to small-scale agriculture, along with wood harvesting for subsistence and wildfires, which should now be considered as extirpated. The species is thus known from 110 collections representing 31 existing and 28 extirpated occurrences.

The extent of occurrence (EOO) of A. pauciramosum is estimated to be 55,269 km² (far exceeding the limits for Vulnerable status under criterion B1) whereas its area of occupancy (AOO) is estimated at 108 km² (which falls within the limits for Endangered status under criterion B2). These 31 remaining occurrences represent a total of 14 locations (sensu IUCN 2022) with respect to the most serious plausible threat, slash-and-burn agricultural practice (Tavy) exceeding the upper limit for Vulnerable status. We estimate that the past loss of its habitat, which will continue, has and will induce a strong continuing decline in habitat quality, number of subpopulations, and mature individuals in the next ten years as well as an important decline in its EOO and AOO. However, it is also inferred that a population reduction of 47 %, based on a reduction of the AOO, using a 2 × 2 km cell size, due to the loss of 28 of the 59 occurrences [twenty (20) occurrences on the mine footprint and eight (8) occurrences outside of the protected areas] measured over 3 generations (2000–2030) in the past and the future. The cause of the reduction, forest clearing due to mining activities, and forest degradation due to forest exploitation, slash-and-burn agricultural practice (tavy), selective logging, timber harvesting for small-scale subsistence, and wildfires, may not have ceased and may not be reversible based on the decline in the area of occupancy, which is under the threshold of Vulnerable status under criterion A4c. The species is thus assessed under criterion A as Vulnerable; VU A4c.

Angraecum pauciramosum, an epiphytic orchid endemic to Madagascar, is known from six regions: Alaotra-Mangoro (Ambatovy, Mantadia, Analamazaotra) and Analanjirofo (Makira) in the former province of Toamasina; Vatovavy (Ranomafana), and Ihorombe (Andringitra) in the former province of Fianarantsoa; Analamanga (Mandraka, Mont Angavobe, Anjozorobe) in the former province of Antananarivo; and Sava (Andranomilolo) in the former province of Antsiranana (Madagascar Catalogue 2022).

The population of Angraecum pauciramosum is currently thought to be decreasing since its habitat is threatened by forest degradation due to slash-and-burn agricultural practices (tavy), mining activities, illegal logging, and timber harvesting for small-scale subsistence use. The number of individuals of A. pauciramosum is not known and cannot be estimated since the species is an epiphyte on the trunk or branches of trees in both humid and subhumid forests, and mossy shrubland. The species is reported to be a rather common species (Bosser and Lecoufle 2011).

Angraecum pauciramosum is an epiphytic herb growing on the trunk and branches of trees on moss- and lichen-covering trees in humid and subhumid forests, and mossy shrubland high-land between 800 and 2,000 m elevations (Madagascar Catalogue 2022).

This species experiences a continuing decline in EOO, AOO, habitat quality, number of locations, and number of mature individuals because of habitat destruction due to shifting cultivation and mining. Twenty subpopulations of this species have been recorded on the footprint of a mining project undergoing intense human pressure such as forest clearing. Ten subpopulations are known from unprotected forests subjected to forest exploitation, slash-and-burn agricultural practice (tavy), selective logging, timber harvesting for small-scale subsistence, and wildfires.

There are no reported uses of the species, but it may be sought after by specialist collectors.

Nineteen occurrences of the species are situated within seven protected areas: the Analamazaotra National Park (nine occurrences), the Andringitra National Park (one occurrence), the Mantadia National Park (three occurrences), the Makira Natural Park (one occurrence), the Protected Harmonious Landscape of the Anjozorobe-Angavo Complex (one occurrence), the Natural Resources Reserve of the Marojejy-Anjanaharibe South-Tsaratanàna Corridor - Northern Part (one occurrence), the Torotorofotsy protected area (two occurrences) and the Ranomafana National Park (one occurrence). The species is also currently placed in Appendix II of the Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES). It has been also brought to cultivation at Ambatovy and Antananarivo shade houses. Ex situ conservation is recommended (micro-propagation, and living collections). It should be included in the list of Malagasy protected species. Further awareness building is recommended for local communities and national authorities.