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| Anoura geoffroyi | |
|---|---|
| Name | Geoffroy's tailless bat |
| Status | LC |
| Status system | IUCN3.1 |
| Genus | Anoura |
| Species | geoffroyi |
| Authority | (Gray, 1838) |
Anoura geoffroyi is a medium-sized nectarivorous bat found across Central and South America. It is notable for its elongated tongue and aerial insectivory mixed with nectarivory, and has been the subject of ecological and taxonomic studies across multiple countries and institutions. Researchers from Smithsonian Institution, Universidad Nacional Autónoma de México, Universidad de São Paulo, Instituto Nacional de Pesquisas da Amazônia, and University of Bristol have contributed to its contemporary understanding.
Anoura geoffroyi was described by John Edward Gray in 1838 and named during a period when specimens circulated among collections in Natural History Museum, London, Muséum national d'Histoire naturelle, and private cabinets associated with expeditions sponsored by Royal Society. Subsequent taxonomic revisions involved comparative work at American Museum of Natural History, Field Museum of Natural History, and collaborations with taxonomists at University of Oxford and University of Cambridge. Molecular studies published by teams at Yale University and University of California, Berkeley used mitochondrial markers to reassess relationships with congeners and with genera treated by researchers at Smithsonian Tropical Research Institute and Instituto de Investigaciones Científicas.
Historical nomenclatural changes referenced specimens from collections linked to Linnean Society of London and correspondence with curators at British Museum. Debates over species limits involved specialists associated with American Society of Mammalogists, International Union for Conservation of Nature, and regional committees such as those coordinated through Convention on International Trade in Endangered Species of Wild Fauna and Flora meetings in which Neotropical mammal taxonomy was often discussed.
Anoura geoffroyi exhibits morphological traits documented in comparative works at Royal Ontario Museum and Museo de La Plata, including a short, robust skull, reduced or absent tail, and limbs adapted for hovering. Measurements reported by teams at Universidade Federal do Pará, Universidad de Los Andes (Colombia), and Pontificia Universidad Católica de Chile detail forearm length, ear morphology, and dental formula used in keys developed at Natural History Museum of Los Angeles County. Anatomical studies involving researchers from Johns Hopkins University and Max Planck Institute for Ornithology examined tongue elongation mechanisms and muscular adaptations relevant to nectarivory, with imaging performed at facilities such as Harvard University and Karolinska Institutet.
Fur coloration and pelage variation have been documented across specimens curated by Museo Americano de Historia Natural and Instituto de Biología (UNAM), while cranial variation has been analyzed in comparative frameworks at University of Zurich and Universidad de Antioquia. Diagnostic features used by regional field guides produced by Conservation International and World Wildlife Fund teams help distinguish it from sympatric taxa studied in projects funded by National Science Foundation and European Research Council grants.
The species occurs across a broad Neotropical range encompassing countries where faunal surveys were conducted by institutions such as Instituto Nacional de Biodiversidad (Costa Rica), Museo Nacional de Costa Rica, Instituto Alexander von Humboldt (Colombia), Instituto Nacional de Pesquisas da Amazônia (Brazil), Servicio Nacional de Áreas Naturales Protegidas por el Estado operations in Peru, and regional parks like Manu National Park and Los Nevados National Natural Park. Elevational records from field teams at Universidad de Costa Rica and Universidad San Francisco de Quito indicate occupancy from lowland Amazonian forests to montane cloud forests surveyed by researchers from Mountain Research Initiative projects.
Habitats include forest edges, riparian corridors, and anthropogenic landscapes where habitat assessments were carried out by BirdLife International partners and national environmental agencies such as Secretaría del Medio Ambiente y Recursos Naturales and Ministerio del Ambiente. Distribution maps compiled by collaborative networks including IUCN SSC Bat Specialist Group and regional committees show patchy presence across biomes monitored by Global Environment Facility supported programs.
Behavioral observations by teams from University of Birmingham, Universidad de Costa Rica, and Smithsonian Tropical Research Institute describe nocturnal activity, roosting in foliage or man-made structures documented by conservationists from The Nature Conservancy, and social interactions noted in studies affiliated with Max Planck Institute for Animal Behavior. Echolocation and flight kinematics were investigated using equipment from Cornell University and University of Glasgow, with acoustic libraries incorporated into databases curated by Bat Conservation International and regional acoustic projects supported by European Bat Research Network collaborators.
Ecological roles have been explored in the context of pollination networks studied by scientists at Kew Gardens, Royal Botanic Gardens, Edinburgh, and university groups such as University of Sheffield, highlighting interactions with plant species surveyed by botanists from Missouri Botanical Garden and Jardín Botánico de Quito.
Dietary studies conducted by researchers at University of São Paulo, Pontifical Catholic University of Ecuador, and University of Florida indicate a diet composed primarily of nectar and pollen complemented by insects, with field experiments run in coordination with National Institute of Amazonian Research and botanical surveys from Royal Botanic Gardens, Kew. Stable isotope analyses performed at laboratories in University of Aberdeen and ETH Zurich supported mixed foraging strategies analogous to results published in journals affiliated with Society for Conservation Biology and American Society of Mammalogists.
Foraging behavior, including hovering and trapline foraging, was modeled in collaboration with movement ecologists at Woods Hole Oceanographic Institution and University of California, Santa Cruz, and tied to floral resources cataloged by networks linked to International Union for Conservation of Nature plant specialists.
Reproductive biology documented by field researchers associated with Instituto de Ecología (UNAM), Universidade Federal de Minas Gerais, and Universidad Central de Venezuela reports seasonal breeding patterns, litter sizes, and roosting behavior during maternity periods. Life history parameters such as longevity, age at first reproduction, and juvenile development have been included in region-wide syntheses coordinated by Pan-American Society for Evolutionary and Systematic Biology and archives maintained by Smithsonian Institution mammalogy collections.
Studies on reproductive physiology referencing methodologies from Scripps Institution of Oceanography and histological work from University of Barcelona provided insight into fecundity and maternal investment documented in collaboration with conservation programs run by Wildlife Conservation Society and national parks authorities.
Anoura geoffroyi is evaluated as Least Concern by assessments produced under the auspices of IUCN and was included in range-wide analyses by the IUCN SSC Bat Specialist Group. Conservation actions recommended in reports prepared with input from BirdLife International, The Nature Conservancy, and regional ministries such as Ministerio del Ambiente y Desarrollo Sostenible (Colombia) emphasize habitat protection in protected areas like Tayrona National Natural Park and restoration efforts supported by Global Environment Facility projects. Threats identified in assessments conducted by teams at Conservation International, WWF, and national research institutes include habitat loss documented in environmental impact reports filed with agencies such as Instituto Nacional de Pesquisas Espaciais and regional planning bodies.
Category:Phyllostomidae