nomes no trilho de navegação
Increasing numbers of exotic fruit orchards in regions where Queensland tube-nosed fruit bats are present have resulted in an increase of reports of these bats damaging orchard fruits such as starfruit (Averrhoa muricata; Averrhoa carambola).
Negative Impacts: crop pest
By wrapping their wings around their body, the colored spots of their wings, face, and ears make Queensland tube-nosed fruit bats cryptic when roosting during the day amongst dense sun-mottled foliage. The color pattern of them is well adapted for camouflage within the canopy as their dark dorsal stripe also resembles the center rib and stem of a dead leaf. Their solitary roosting behavior may allow for enhanced efficacy of their cryptic coloration, as larger groups would make this color pattern appear more conspicuous. Queensland tube-nosed fruit bats also limit their activity during full moon phases; this may be attributable to predator avoidance for visual nocturnal predators such as owls.
Known Predators:
Anti-predator Adaptations: cryptic
The skull of the genus of tube-nosed fruit bats can be described as short and heavy with anteriorly deep rostrum. Their lacrimal widths are a greater than distance from orbit to nares. They have narrow braincase, slight basicranial flexion, and have an aveolar line which projects backwards and passes through the condyle. Tube-nosed fruit bats have a non-tubular occiput and anteriorly fused premaxillaries. They have no narrowing of the bony palate or only slight narrowing behind maxillary toothrows. Tube-nosed fruit bats have parallel upper canines and the distance between posterior molars is equal to width of interpterygoid fossa. They have angular process of mandible that is greatly reduced and long tubular nostrils. Their dental formula is incisors 1/0, canines, 1/1, premolars 3/3, and molars 1/2 equaling 24. P2/ and P/2 are well developed and equal in height to the cingulum of the canines. The rest of the cheekteeth are molariform all of which have high well-developed anterior cusps except for M/2, which is low crowned and about half the size of the other molariform teeth. Tongues of tube-nosed fruit bats have four circumvallate papillae ((Anersen, 1912; Miller 1907) in Heaney and Peterson 1984).
The dentition of the genus of tube-nosed fruit bats is unique because they lack incisors on the lower jaw; the lower canines function in place of the missing incisors. The modified lower canines nearly come into contact with each other and close against the 2 upper incisors when biting. This odd dentition is attributed to a distant ancestor with reduced biting teeth, possibly due to a liquid based diet. In returning to a diet of fruit a new biting mechanism evolved.
Queensland tube-nosed fruit bats have brown wings characteristically speckled with yellow and lime-green spots. These spots provide each individual with their own “spot code” as no two bats have the same pattern. Their fur is grey to red-brown with a dark strip of fur centered down the dorsal side of their body. One of the most characteristic features of this fruit bat is their large bulging tubular nostrils (protruding 5 to 6 mm from the face). This along with the characteristic yellow to green spots on their wings, face, and ears, as well as their bulging eyes distinguishes them from all other Australian bats.
The wings of Queensland tube-nosed fruit bats are short and broad compared to other members of the old world fruit bats family. Queensland tube-nosed fruit bats gave a well-developed tail and a claw on the index finger (Anersen, 1912; Miller 1907 as cited in Heaney and Peterson 1984).
Queensland tube-nosed fruit bats have a measured basal metabolic rate of 54.7 cubic cm oxygen per h, and daily body tempatures ranging from 35 degrees C to 37 degrees C. Heterothermy is rarely seen in the old world fruit bats family, however Queensland tube-nosed fruit bats have the ability to rapidly drop their body teperature, metobolic rate, and enter torpor during day or night. Unlike other bat species which use shivering or brown fat as their heat generating mechanisms, Queensland tube-nosed fruit bats produce heat much more rapidly via tachycardia which is under nervous and hormonal control.
Queensland tube-nosed fruit bats have an average head and body length of 100 to 110 mm as well as an average tail length of 20 to 25 mm. Commonly used as a proxy for body condition by bat researchers the average forearm length and mass are 60 to 70 mm and 30 to 50 g respectively. Although little evidence of the sexual dimorphism in Queensland tube-nosed fruit bats has been documented, sexual dimorphism of the pelvic girdle has been suggested based on palpations of adult bats. The palpations of the pelvic girdle of Queensland tube-nosed fruit bats indicate that they may exhibit similar sexual dimorphism to other species of Australian flying foxes. Females have open, V-shaped pelvic girdles and the males have closed, O-shaped pelvic girdles. Females have also been noted as having a more lightly colored pelage than males while sub-adults have a more intermediate coloration. Despite this the overall color patterns and average mass for both sexes are the same.
An analysis of the cellular DNA content of Queensland tube-nosed fruit bats has revealed that they have fewer genes than any other mammal (smallest genome size). Their total genome size is approximately half that of the human genome, which has implications about which parts of the genomes of humans, or other mammals, are redundant.
Range mass: 30 to 50 g.
Range length: 100 to 110 mm.
Range wingspan: 60 to 70 mm.
Average basal metabolic rate: 54.7 cm3.O2/g/hr.
Other Physical Features: endothermic ; heterothermic ; bilateral symmetry
Sexual Dimorphism: sexes colored or patterned differently; sexes shaped differently
Queensland tube-nosed fruit bats have been noted as being vulnerable (NSW TSC act) due to human development. Much of this concern is related to entanglement in barbed wire fences. Increases in the number of orchards in Australia has led to increased conflict with the farming community. Farmers have been known to hang nets around orchards to keep the bats away from fruit crops. Bats that become entangled in the nets are left to starve. Therefore understanding the biology of Queensland tube-nosed fruit bats is particularly important for management strategies around fruit orchards in order to minimize the damage to the fruit as well as the bats.
The tubular shaped nostrils were once believed to function as snorkels to aid Queensland tube-nosed fruit bats in feeding on messy fruit meals. However observations made of Queensland tube-nosed fruit bats while feeding have revealed that they are not messy eaters, indicating that the tubular nostrils must serve some other purpose. Further investigation into the tubular nostrils has revealed that the nostrils can open and close and move independently of each other. This opening and closing of the nostrils occurs in response to auditory, visual, and olfactory cues and allows Queensland tube-nosed fruit bats to scan their surrounds via olfaction. Like stereo vision from two eyes or stereo hearing from two ears the independent functioning of the two nostrils allows for stereo olfaction, providing independent measures of aroma concentrations. The use of modified stereo olfaction system allows them to locate and follow odor plumes in a three dimensional realm. This stereo olfaction system aides in finding preferred fig fruits throughout the Australian rainforests.
Queensland tube-nosed fruit bats communicate via characteristic whistling calls which also serve as a reliable indication of their presence within an area.
Communication Channels: visual ; acoustic ; chemical
Perception Channels: visual ; tactile ; acoustic ; chemical
Nothing is known about the longevity of Queensland tube-nosed fruit bats. However old world fruit bats live at least 30 years in wild and captive settings.
Although regarded as a rainforest specialist Queensland tube-nosed fruit bats are found throughout complex notophyll vine forests, Araucarian notophyll vine forests, mixed tall open forests, sclerophyll vegetation, and in urban areas. Accounts of Queensland tube-nosed fruit bats suggest that they prefer to roost amongst foliage in the rainforest sub-canopy layer where they find effective camouflage within the dried leaves. However they have also been noted in exposed trees on forest margins. Individuals may roost alone from approximately 4 to 6 m above the ground to higher up and out of sight in the canopy. Individuals show day-roost site fidelity over short periods, mainly during ripe fruit abundances, within an area; but may change roost sites as a predator avoidance strategy. Day-roost sites chosen by Queensland tube-nosed fruit bats are variable and include: primary forest sites, isolated tropical fig trees (Fiscus veriegata), hind-dune mangroves, and second-growth forests near mangroves.
Habitat Regions: tropical ; terrestrial
Terrestrial Biomes: savanna or grassland ; forest ; rainforest
Aquatic Biomes: coastal
Other Habitat Features: urban ; suburban ; agricultural
Queensland tube-nosed fruit bats aid in forest succession as well as dispersal and propagation of figs, providing enhanced economic value to old world tropical forests.
Positive Impacts: food ; produces fertilizer; pollinates crops
Queensland tube-nosed fruit bats are important seed dispersers and pollinators for the Australian ecosystem. They are the only small, understory, seed-dispersing bat in Australian tropical forests. When compared to the tropical forests of southeast Asia and central America, which have many species of small, understory, fruit-eating bats that share the task of dispersing seeds, the importance of the role played by Queensland tube-nosed fruit bats in Australian rainforests is quite apparent.
Queensland tube-nosed fruit bats have been found with parasitic mites (Meristaspis spp.), which are common wing mites of old World fruit bats.
Ecosystem Impact: disperses seeds; pollinates
Commensal/Parasitic Species:
Queensland tube-nosed fruit bats (Nyctimene robinsoni) are found along the east coast of Queensland, Australia ranging from northern New South Wales to the Cape York Peninsula. Few observations have been made on the occurrence of Queensland tube-nosed fruit bats south of the Queensland border but they are believed to have a more scattered distribution at the southern end of their range. Recordings of the southern range of Queensland tube-nosed fruit bats were taken south of Nightcap National Park at Snows Creek (a tributary of Coopers Creek found 26 km north north east of Lismore, New South Wales) and around the forest canopy at Boomerang Falls Flora Reserve (about 5 km south south west of Snows Creek). Queensland tube-nosed fruit bats are generally dispersed along the coast throughout their range; the farthest inland recording is also the most southerly recording and comes from the Culmaran Creek valley in Richmond Range State Forest approximately 84 km east of the coast. A specimen housed by the Australian Museum is reported to come from as far south as Wee Jasper, New South Wales, however this is believed to be attributed to a labeling error and this specimen has been determined to be island tube-nosed fruit bat.
Biogeographic Regions: australian (Native )
Queensland tube-nosed fruit bats are specialist frugivores feeding mainly on 3 species of fig (Ficus copiosa; Ficus nodosa; Ficus variegata). They are also known to feed on lillypilly (Syzigium corniflorum), the exotics guava and soursop (Psidium guajava; Annona muricata) around orchards and ona pioneer species (Fiscus racemos) around abandoned pastures. The majority of individuals found feeding on soursop are female which has been attributed to the different nutritional requirements of pregnant and lactating females, particularly as soursop has a much higher fat and protein content than the native figs. Foraging behavior is restricted to the understory where cauliflorous (trunk-fruiting) trees are visited. Queensland tube-nosed fruit bats generally forage on trees within close proximity to their day roosts. Fruit may be carried away to be eaten or consumed on site at the tree where the fruit was growing. Individuals can carry fruit weighing over half of their own body weight. In one instance a 54 g bat was recorded carrying a 30 g fig. Multiple individuals will feed simultaneously on the same tree and have even been noted feeding along with spectacled flying foxes.
Plant Foods: fruit; nectar; pollen; flowers
Primary Diet: herbivore (Frugivore )
Little is known about the mating systems of Queensland tube-nosed fruit bats.
Little is known about the reproductive biology of Queensland tube-nosed fruit bats; however most species belonging to the old world fruit bats family have long periods of mating, long pregnancies, and long lactation periods, with the reproductive cycle lasting around 12 months in many species. Like the majority of old world fruit bats species Queensland tube-nosed fruit bats are seasonal breeders.
Female Queensland tube-nosed fruit bats give birth to one pup between October and December. Close relatives Philippine tube-nosed fruit bats are found in primary forests near water bodies and among upper canopy foliage which is similar to the habitat requirements to Queensland tube-nosed fruit bats. The similarities between these two species make Philippine tube-nosed fruit bats a decent proxy for the reproduction of Queensland tube-nosed fruit bats. Heidmen (1987) found Philippine tube-nosed fruit bats also have a single young each year. Gestation in Philippine tube-nosed fruit bats are around three and a half months long while lactation lasts four months or longer.
Breeding interval: Queensland tube-nosed fruit bats breed once a year.
Breeding season: Queensland tube-nosed fruit bats mate from July to September.
Average number of offspring: 1.
Range gestation period: 3 to 3.5 months.
Range weaning age: 4 (low) months.
Key Reproductive Features: iteroparous ; seasonal breeding ; gonochoric/gonochoristic/dioecious (sexes separate); sexual ; viviparous
Queensland tube-nosed fruit bats have long periods of lactation and the single pup is carried by the mother until it grows rather large. No information is currently available about parental care in this genus.
Parental Investment: altricial ; female parental care
El ratpenat de nas tubular de Queensland (Nyctimene robinsoni) és una espècie de ratpenat de la família dels pteropòdids. Viu a Austràlia i possiblement a Papua Nova Guinea. El seu hàbitat natural són els boscos tropicals i els horts. No hi ha cap amenaça concreta per a la supervivència d'aquesta espècie, tot i que les tanques de filferro d'arç són perilloses per aquests ratpenats i els poden causar la mort.[1]
El ratpenat de nas tubular de Queensland (Nyctimene robinsoni) és una espècie de ratpenat de la família dels pteropòdids. Viu a Austràlia i possiblement a Papua Nova Guinea. El seu hàbitat natural són els boscos tropicals i els horts. No hi ha cap amenaça concreta per a la supervivència d'aquesta espècie, tot i que les tanques de filferro d'arç són perilloses per aquests ratpenats i els poden causar la mort.
Kaloň trubkonosý (Nyctimene robinsoni) je drobný druh kaloně žijící na Nové Guineji, sousedních ostrovech a v severovýchodní Austrálii.
Kaloň trubkonosý dosahuje délky asi 10 cm, v rozpětí měří necelých 30 cm. Jeho jméno je odvozeno od zvláštního trubicovitého vyústění nozder vybočeného do stran. Jeho účel je nejasný - domněle slouží při vyhledávání potravy, snad i k hlasovým projevům. Zvuky které kaloni vydávají mohou sloužit jak k dorozumívání tak k orientaci pomocí echolokace.
Kaloň trubkonosý obývá temné jeskyně, žije osaměle nebo v malých koloniích. Živí se šťávou tropických plodů, příležitostně i hmyzem; žije poměrně skrytě, proto je způsob jeho života dosud jen málo znám.
Obrázky, zvuky či videa k tématu kaloň trubkonosý ve Wikimedia Commons
Kaloň trubkonosý (Nyctimene robinsoni) je drobný druh kaloně žijící na Nové Guineji, sousedních ostrovech a v severovýchodní Austrálii.
Kaloň trubkonosý dosahuje délky asi 10 cm, v rozpětí měří necelých 30 cm. Jeho jméno je odvozeno od zvláštního trubicovitého vyústění nozder vybočeného do stran. Jeho účel je nejasný - domněle slouží při vyhledávání potravy, snad i k hlasovým projevům. Zvuky které kaloni vydávají mohou sloužit jak k dorozumívání tak k orientaci pomocí echolokace.
Kaloň trubkonosý obývá temné jeskyně, žije osaměle nebo v malých koloniích. Živí se šťávou tropických plodů, příležitostně i hmyzem; žije poměrně skrytě, proto je způsob jeho života dosud jen málo znám.
The eastern or Queensland tube-nosed bat (Nyctimene robinsoni) is a megabat in the family Pteropodidae that lives in north-eastern Australia. N. robinsoni is one of the few species of megabat that roosts solitarily. They get their common name from their raised tubular nostrils which are unlike those of most other species in the family. They are a deep brown with gray heads and sparse yellow spotting.
The first description of the species was published by Oldfield Thomas in 1904, distinguishing the new taxon by comparison to the species Nyctimene major described by George Edward Dobson in 1877. Thomas examined two specimens, nominating a male as the type, these were obtained by Herbert C. Robinson in Cooktown.[2] The synonymy of N. robinsoni includes Nyctimene tryoni and the separation of the Australian population recognised as Nyctimene albiventer, the common tube-nosed fruit-bat which occurs at the island states north of Australia.[3] Nyctimene robinsoni is allied to the cephalotes-group of the genus.[4]
The common name Queensland tube-nosed bat was noted by Ronald Strahan as the only vernacular for the species,[3] where the range of species was thought to be restricted,[5] the name eastern tube-nosed bat was later applied by the Australian Museum, Menckhurst, the IUCN and other authorities.[6][7]
A species of Pteropodidae, the fruit eating bats, the only Nyctimene bat to occur on mainland Australia. They are readily distinguished by the unusual nostrils that protrude from the short, broad and rounded muzzle. The ears and wing membranes exhibit many small contrasting spots of a yellow-green or pallid yellow colour, a characteristic also observed in the Torres species Nyctimene cephalotes. These spots are thought to serve as camouflage when the bats are resting during the day, but they have also found to be photoluminescent, a phenomenon not observed in other bat species, nor in captive specimens of the N. robinsoni.[8] The colour of the pelage is russet to greyish shades of brown, greyer at the face and over the head, with a dark line extending down the back from the neck. The eyes are bright red when reflecting light.[6]
The measurements of the forearm are 65 to 70 millimetres, the head and body combined is from 82 to 93 mm and the length of the ear from base to tip is 16 to 20 mm. The average weight is 48 grams, for the recorded range of 42 to 56 grams for individuals. The dentition is adapted to its frugivorous diet, lacking lower incisors and using the lower against the upper canines to consume fruits. Vocalisation is given in flight, when they emit a highly pitched 'seep' sound.[6]
The distribution range extends along the east coast of the continent, north of Lismore, New South Wales to Cape York and at the islands of the Torres Strait. They are relatively common in Queensland, becoming more rarely seen south of Ingham. The habitat includes rainforests, woodlands and heathland, and open forest.[6] They occur at tropical and subtropical regions in rainforest or wet sclerophyll forest. tropical vine forest or heath.[7]
The tube-nosed bat, like other bats in the family Pteropodiae, relies on its sight and smell to locate food, which mostly consists of figs and other rainforest fruits.[9] Flowers and their nectar or pollen are also consumed. Nyctimene robinsoni is also known to eat cultivated exotic fruit, and have been observed eagerly feeding on guava.[3][6] Nectar also forms part of the diet, obtained from flowering heathland plants and species of Banksia.[6] The species appears to favour native species over introduced orchard fruits, and travel just a short distance to feed at trees such as Ficus racemosa, the cluster fig.[10] It is one of 14 tube-nosed bat species worldwide, and has the most southerly distribution of them all.[11]
The species reproduces with a single birth per year, sometime between October and December. The gestation period is three to three and one half months.[7] The offspring is carried by the mother until it is large and well developed.[3]
The bat's tube-shaped nostrils may assist in locating ripe fruit. The two nostrils can move independently from each other, and may be concentrating aromas and following odor plumes through the rainforest. This function is often called stereo olfaction.[11] The unusual nostril projections were once thought to act as a snorkel, allowing them breathe while the mouth is embedded in soft fleshed fruits. This theory was contradicted in observations of the bats' diet, which is primarily firm fruits, and their method, shared by most fruit eating bats, of biting and licking fruits to consume them.[3] The feeding activities of the species is a significant contributor to pollination of plant species, the dispersal of seeds and recruitment of trees within its forest habitats.[7]
They are highly agile in flight and are easily able to hover while foraging. They are often observed flying along tracks in forests, sometimes at quite low altitudes, and heard when emitting their whistling calls. The habit of roosting alone, unusual amongst fruit bats, is occasionally extended to small groups.[6] The spotted wings are wrapped around the body at their daytime roosts, as they hang alone in dense foliage. This provides the species with effective camouflage in the dappled forest light.[3]
N. Robinsoni exhibits signs of lunar phobia, as their body temperature is lowered to near-resting levels during full-mooned nights. This may be because they expend less energy when flying on full-mooned nights since fruit is easier to see. Conversely, they may be less active so as to avoid visually oriented predators at night.[12]
When held in captivity they are able to subsist on pears, bananas, pawpaw and citrus fruits. They do not appear to drink water.[3]
The species is listed with the conservation status least concern by the Queensland state government, where it is more common, and vulnerable in New South Wales.[7] They have been identified as especially vulnerable to the hazards presented by barbed wire, an often fatal encounter for any bat species.[13][14] A survey in the aftermath of a single storm event, Cyclone Larry (2006), found sixteen individuals had become entangled in barbed wire fencing at the Atherton Tableland.[14] N. Robinsoni has also come into conflict with orchardists, and entanglement in netting over fruit tees has led to death by starvation.[14]
Alexander Riek, Gerhard Körtner, Fritz Geiser Journal of Experimental Biology 2010 213: 2557-2564; doi: 10.1242/jeb.043182
The eastern or Queensland tube-nosed bat (Nyctimene robinsoni) is a megabat in the family Pteropodidae that lives in north-eastern Australia. N. robinsoni is one of the few species of megabat that roosts solitarily. They get their common name from their raised tubular nostrils which are unlike those of most other species in the family. They are a deep brown with gray heads and sparse yellow spotting.
Nyctimene robinsoni es una especie de murciélago de la familia Pteropodidae.
Es Endémica de Australia, en el este de Queensland y el noroeste de Nueva Gales del Sur.
Datos: Q1769821
Multimedia:
Especies: Nyctimene robinsoni
Nyctimene robinsoni es una especie de murciélago de la familia Pteropodidae.
Nyctimene robinsoni Nyctimene generoko animalia da. Chiropteraren barruko Pteropodidae familian sailkatuta dago.
Nyctimene robinsoni Nyctimene generoko animalia da. Chiropteraren barruko Pteropodidae familian sailkatuta dago.
Le Nyctimène du Queensland (Nyctimene robinsoni) est une espèce de chauve-souris frugivore vivant dans les régions côtières du nord-est de l'Australie. C'est une des rares espèces de Pteropodidae qui vivent de façon solitaire.
Le Nyctimène du Queensland (Nyctimene robinsoni) est une espèce de chauve-souris frugivore vivant dans les régions côtières du nord-est de l'Australie. C'est une des rares espèces de Pteropodidae qui vivent de façon solitaire.
Nyctimene robinsoni (Thomas, 1904) è un pipistrello appartenente alla famiglia degli Pteropodidi, diffuso in Australia .[1][2]
Pipistrello di medie dimensioni, con la lunghezza della testa e del corpo tra 86 e 98 mm, la lunghezza dell'avambraccio tra 65 e 70 mm, la lunghezza della coda tra 21 e 31 mm, la lunghezza delle orecchie tra 16 e 20 mm e un peso fino a 56 g.[3]
Il colore del dorso e della testa è bruno-grigiastro, mentre le parti ventrali sono color crema, bruno-rossastre sui fianchi e nel basso ventre. Lungo la spina dorsale è presente una sottile e ben definita striscia nerastra. Il muso è corto, tozzo e largo, gli occhi sono grandi. Le narici hanno la forma di due piccoli cilindri che si estendono ben oltre l'estremità del naso e sono spesso ricoperte di macchie gialle. Le orecchie sono corte, arrotondate e cosparse di macchie gialle. Le ali sono marroni e cosparse di macchioline giallognole e marroni scure. La coda è lunga e si estende completamente fuori dall'uropatagio, il quale è ridotto ad una sottile membrana lungo la parte interna degli arti inferiori.
Si rifugia solitariamente od in piccoli gruppi sugli alberi e nella densa vegetazione. Durante il volo emette un suono acuto e penetrante.
Si nutre di specie native di Ficus, ma anche di frutti di Eugenia erythrocalyx, Guava, Syzygium corniflorum e Randia sessilis[4].
Le femmine danno alla luce un piccolo all'anno tra ottobre e dicembre.
Questa specie è diffusa in Australia, lungo le coste del Queensland, le coste settentrionali del Nuovo Galles del Sud e le isole di Magnetic e Moa. Gli esemplari di N. cephalotes catturati in Nuova Guinea potrebbero appartenere a questa specie.
Vive nelle foreste pluviali tropicali, boschi, foreste aperte, brughiere e nei frutteti.
La IUCN Red List, considerato il vasto areale e la popolazione numerosa, classifica N. robinsoni come specie a rischio minimo (LC).[1]
Nyctimene robinsoni (Thomas, 1904) è un pipistrello appartenente alla famiglia degli Pteropodidi, diffuso in Australia .
De Robinsonbuisneusvleerhond (Nyctimene robinsoni) is een vleermuis uit het geslacht Nyctimene die voorkomt langs de oostkust van Australië, van de eilanden in de Straat Torres tot Lismore in Nieuw-Zuid-Wales. Ten zuiden van Ingham (Queensland) is de soort minder algemeen, hoewel hij ten noorden daarvan veel voorkomt. Hij leeft in allerlei habitats, van regenwoud tot heide.
Net als bij alle Nyctimene zijn de neusgaten buisvormig en vooruitstekend en zijn de vleugels en de oren bedekt met gele of geelgroene vlekken. De vacht is grijsbruin; er is een zwarte rugstreep aanwezig. Het dier heeft geen voortanden in de onderkaak. De kop-romplengte bedraagt 82 tot 93 mm, de voorarmlengte 65 tot 70 mm, de oorlengte 16 tot 20 mm en het gewicht 42 tot 56 g.
Het dier slaapt in de vegetatie van het regenwoud. Meestal gebeurt dat solitair, maar soms vormt hij kleine groepen. Hij eet fruit en nectar. Vrouwtjes krijgen per worp één jong, dat tussen oktober en december geboren wordt.
De Robinsonbuisneusvleerhond (Nyctimene robinsoni) is een vleermuis uit het geslacht Nyctimene die voorkomt langs de oostkust van Australië, van de eilanden in de Straat Torres tot Lismore in Nieuw-Zuid-Wales. Ten zuiden van Ingham (Queensland) is de soort minder algemeen, hoewel hij ten noorden daarvan veel voorkomt. Hij leeft in allerlei habitats, van regenwoud tot heide.
Net als bij alle Nyctimene zijn de neusgaten buisvormig en vooruitstekend en zijn de vleugels en de oren bedekt met gele of geelgroene vlekken. De vacht is grijsbruin; er is een zwarte rugstreep aanwezig. Het dier heeft geen voortanden in de onderkaak. De kop-romplengte bedraagt 82 tot 93 mm, de voorarmlengte 65 tot 70 mm, de oorlengte 16 tot 20 mm en het gewicht 42 tot 56 g.
Het dier slaapt in de vegetatie van het regenwoud. Meestal gebeurt dat solitair, maar soms vormt hij kleine groepen. Hij eet fruit en nectar. Vrouwtjes krijgen per worp één jong, dat tussen oktober en december geboren wordt.
Nyctimene robinsoni é uma espécie de morcego da família Pteropodidae. Endêmica da Austrália, onde pode ser encontrada no leste de Queensland e noroeste de Nova Gales do Sul.
Nyctimene robinsoni é uma espécie de morcego da família Pteropodidae. Endêmica da Austrália, onde pode ser encontrada no leste de Queensland e noroeste de Nova Gales do Sul.
Nyctimene robinsoni[2][3][4] är en däggdjursart som beskrevs av Thomas 1904. Nyctimene robinsoni ingår i släktet Nyctimene och familjen flyghundar.[5][6] IUCN kategoriserar arten globalt som livskraftig.[1] Inga underarter finns listade.[5]
Denna flyghund förekommer vid kustlinjen i Queensland och norra New South Wales i Australien. Habitatet utgörs av varma skogar och öppna landskap med glest fördelade träd. Arten vilar gömd i den täta växtligheten. Individerna lever ensam eller i små flockar. Per kull föds en unge.[1]
Arten når en kroppslängd av cirka 9,5 cm och svansen är lika lång som hos andra släktmedlemmar (1,5 till 3 cm). Även de rörformiga näsborrarna som är typiska för släktet förekommer hos arten. Påfallande är gula fläckar på öronen och på flygmembranen. Djuret har gråbrun päls på ryggen och ljusare päls på undersidan. Ungefär från djurets nacke till stjärten finns en smal svart strimma på ryggen.[7]
Liksom andra flyghundar har Nyctimene robinsoni frukter, nektar och pollen som föda. Den är därför betydande för växternas pollinering. Arten flyger bara korta sträckor från viloplatsen till området där den äter. Honan parar sig mellan juli och september och 3 till 3,5 månader senare föds en unge. Nyctimene robinsoni är känd för sitt högljudda läte.[7]
Wikimedia Commons har media som rör Nyctimene robinsoni.
Wikispecies har information om Nyctimene robinsoni.
Nyctimene robinsoni är en däggdjursart som beskrevs av Thomas 1904. Nyctimene robinsoni ingår i släktet Nyctimene och familjen flyghundar. IUCN kategoriserar arten globalt som livskraftig. Inga underarter finns listade.
Denna flyghund förekommer vid kustlinjen i Queensland och norra New South Wales i Australien. Habitatet utgörs av varma skogar och öppna landskap med glest fördelade träd. Arten vilar gömd i den täta växtligheten. Individerna lever ensam eller i små flockar. Per kull föds en unge.
Arten når en kroppslängd av cirka 9,5 cm och svansen är lika lång som hos andra släktmedlemmar (1,5 till 3 cm). Även de rörformiga näsborrarna som är typiska för släktet förekommer hos arten. Påfallande är gula fläckar på öronen och på flygmembranen. Djuret har gråbrun päls på ryggen och ljusare päls på undersidan. Ungefär från djurets nacke till stjärten finns en smal svart strimma på ryggen.
Liksom andra flyghundar har Nyctimene robinsoni frukter, nektar och pollen som föda. Den är därför betydande för växternas pollinering. Arten flyger bara korta sträckor från viloplatsen till området där den äter. Honan parar sig mellan juli och september och 3 till 3,5 månader senare föds en unge. Nyctimene robinsoni är känd för sitt högljudda läte.
Nyctimene robinsoni — вид рукокрилих, родини Криланових.
Цей вид зустрічається від східного Квінсленду до північної частини Нового Південного Уельсу, Австралія. Проживає в тропічних лісах і садах.
Лаштує сідала на деревах і в густому листі. Як правило, ці рукокрилі поодинокі, але можуть бути знайдені в невеликих групах. Самиці народжують одне маля.
Nyctimene robinsoni — вид рукокрилих, родини Криланових.
Nyctimene robinsoni là một loài động vật có vú trong họ Dơi quạ, bộ Dơi. Loài này được Thomas mô tả năm 1904.[2]
Phương tiện liên quan tới Nyctimene robinsoni tại Wikimedia Commons
Bài viết họ Dơi quạ này vẫn còn sơ khai. Bạn có thể giúp Wikipedia bằng cách mở rộng nội dung để bài được hoàn chỉnh hơn. Nyctimene robinsoni là một loài động vật có vú trong họ Dơi quạ, bộ Dơi. Loài này được Thomas mô tả năm 1904.
동부관코박쥐 또는 퀸즐랜드관코박쥐(Nyctimene robinsoni)는 큰박쥐과에 속하는 박쥐의 일종이다. 오스트레일리아 북동부 지역에서 서식한다. 보금자리에서 홀로 생활하는 얼마되지 않는 큰박쥐류 박쥐의 하나이다. 통용명은 큰박쥐과에 속하는 다른 대부분의 박쥐와 달리 두드러진 관 모양의 콧구멍에서 유래했다. 회색 머리와 함께, 몸은 진한 갈색을 띠며 희미한 노란 반점을 갖고 있다
