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Artibeus jamaicensis
Jamaican Fruit Bat
Leach, 1821
Detailed Texts Multi-lang
Artibeus jamaicensis is a medium to large-sized bat with a robust and compact body. Its fur is short and velvety, ranging from grayish-brown to dark brown. Two notable features stand out on its face: a prominent spear-shaped 'nose-leaf' (typical of its family, used for echolocation) and faint, pale facial stripes above and below the eyes, though they are usually less pronounced than in other species of its genus. It lacks a visible tail, and the membrane between its hind legs (uropatagium) has a 'U' or 'V'-shaped notch. It has unusually strong and broad jaws, perfectly designed for carrying and crushing hard fruits like figs.
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Taxonomy
PhylumChordata
ClassMammalia
OrderChiroptera
FamilyPhyllostomidae
GenusArtibeus
Taxonomic AuthorityLeach, 1821
Ecology & Status
Origin
Native
Population Trend
Stable
Breeding Season
Year Round
Trophic Role
Herbivore
Recent Sightings
Yes
Habitat Summary Multi-lang
It is one of the most abundant and adaptable species in the Neotropics. It inhabits primary and secondary tropical rainforests, dry forests, cloud forests, and is extremely common in human-modified landscapes such as banana plantations, urban gardens, and parks. It uses a wide variety of roosts to sleep, including lit caves, tunnels, dense foliage, tree hollows, and frequently, the roofs of human buildings. In Costa Rica, it is ubiquitous in almost all territories up to 2,000 meters above sea level.Behaviour Multi-lang
It is a nocturnal forager that flies quickly through the subcanopy and canopy searching for fruits. It does not eat in the same tree where it picks the fruit; typically, it takes the fruit in its mouth and flies to a nearby 'feeding roost,' where it hangs to process the food calmly. They are highly social animals that form large harems.Social Activity Multi-lang
Highly gregarious. It is organized into harems consisting of a single dominant male and between 3 to 25 females, plus their young. Subordinate males form bachelor groups nearby.Feeding Guild Multi-lang
Frugivore (Occasionally nectarivore and insectivore).Trophic Chain Details Multi-lang
Primary consumer (Frugivore). Massive seed disperser. It is hunted by arboreal boas, owls, large opossums (Didelphis) that catch them in their roosts, and occasionally large spiders and centipedes in caves.Reproductive Behaviour Multi-lang
Females experience bimodal polyestry (two reproductive peaks a year, coinciding with maximum fruiting). Gestation lasts around 115 to 120 days, but delayed embryonic development occurs in some populations. A single pup is born per birth. Pups are born with open eyes and hairless. During the first days of life, the mother flies carrying the pup attached to her chest; later she leaves it at the roost while foraging.Physical Measures
Length (cm)
7.0 - 9.5 cm
Weight (Grams)
40 g - 65 g
Offspring per cycle1 - 1
Sexual DimorphismNo
Lifespan
Sexual Maturity
8 - 12 Months
Gestation / Incubation
115 - 120
Lifespan Estimated
Males5 - 10 Years
Females5 - 10 Years
Evolutionary Adaptations Multi-lang
Pellet Food Processing: To avoid swallowing unnecessary fiber that would add flight weight, they chew the fruit, extract the juices, and swallow the small seeds. They then spit out the dry fibrous pulp as small 'pellets' under their feeding roosts.
Specialized Smell and Nose-Leaf: Although they use echolocation (emitted through their nose-leaf) to navigate in the dark, they rely heavily on an acute sense of smell to detect ripe fruit trees at long distances in the dense jungle.
Main Threats Multi-lang
Human Persecution: By seeking shelter in the roofs of houses, they are often exterminated by people who consider them noisy pests or mistakenly confuse them with vampire bats.
Interesting Facts Multi-lang
The King of Figs: They are specialists in consuming figs (Ficus spp.). By flying long distances and defecating while in flight, they disperse millions of seeds every night, being responsible for the regeneration of large deforested areas (pioneer species).
Lunar Phobia: Their flight and foraging activity decreases drastically during full moon nights. This 'lunar phobia' is an evolutionary strategy to avoid detection by visual predators, such as owls.