Eliurus petteri és una espècie de rosegador de la família dels nesòmids. És endèmic de l'est de Madagascar, on viu a altituds d'entre 450 i 1.145 msnm. Probablement es tracta d'un animal arborícola o grimpador. El seu hàbitat natural són els boscos humits de plana. Està amenaçat per la desforestació.[1]
L'espècie fou anomenada en honor del zoòleg francès Francis Petter.[2]
Eliurus petteri és una espècie de rosegador de la família dels nesòmids. És endèmic de l'est de Madagascar, on viu a altituds d'entre 450 i 1.145 msnm. Probablement es tracta d'un animal arborícola o grimpador. El seu hàbitat natural són els boscos humits de plana. Està amenaçat per la desforestació.
L'espècie fou anomenada en honor del zoòleg francès Francis Petter.
Der Petter-Bilchschwanz (Eliurus petteri) ist eine Art der Madagaskar-Ratten innerhalb der Bilchschwänze (Eliurus). Die Art lebt endemisch im zentral-östlichen Teil von Madagaskar, wo sie nur aus der Provinz Toamasina bekannt ist.
Der Petter-Bilchschwanz erreicht eine Kopf-Rumpf-Länge von 13,3 Zentimetern bei einer Schwanzlänge von 19,1 Zentimetern, das Gewicht beträgt 74 Gramm; alle Angaben stammen dabei vom Typus. Damit handelt es sich um eine kleine Art der Nagetiere. Die Rückenfärbung ist braungrau, der Bauch ist weiß und gegenüber dem Rücken scharf abgegrenzt. Im Vergleich zu verwandten Arten ist er anhand dieser Abgrenzung gut zu unterscheiden. Der Schwanz ist im vorderen Bereich nackt und im letzten Viertel mit grauen Haaren besetzt, die eine Quaste an der Schwanzspitze bilden. Diese kann bei einigen Individuen auch weiß sein. Die Unterschenkel sind grau, die Füße und Zehen weiß.[1]
Die Weibchen besitzen drei Paar Zitzen.[1]
Die Art lebt endemisch im zentral-östlichen Teil von Madagaskar, wo sie nur in der Provinz Toamasina nachgewiesen ist.[1]
Über die Lebensweise des Petter-Bilchschwanzes liegen nur sehr wenige Informationen vor. Er lebt in unberührten Regenwaldgebieten des Flachlands und der Berghänge in Höhen von 430 bis 1200 Metern. Die Tiere sind nachtaktiv und es ist anzunehmen, dass sie sich von Samen und anderen Pflanzenteilen ernähren. Wahrscheinlich wird die Nahrung durch Früchte und Insekten ergänzt.[1]
Der Petter-Bilchschwanz wird als eigenständige Art innerhalb der Gattung der Bilchschwänze (Eliurus) eingeordnet.[1][2] Die wissenschaftliche Erstbeschreibung der Art stammt von dem Zoologen Michael D. Carleton aus dem Jahr 1994, der sie anhand von Individuen aus Provinz Toamasina beschrieb.[1][2]
Innerhalb der Art werden neben der Nominatform keine Unterarten unterschieden.[1] Benannt wurde die Art nach Francis Petter, Zoologieprofessor in Paris.[3]
Der Petter-Bilchschwanz wird von der International Union for Conservation of Nature and Natural Resources (IUCN) als bedroht („endangered“) eingeordnet.[4] Begründet wird die Einordnung durch das sehr kleine Verbreitungsgebiet von 1532 km², in dem die nutzbaren Habitate stark fragmentiert sind. Die Hauptbedrohung für diese Art ist der Verlust und die Verschlechterung der Lebensräume als Folge von Brandrodungen durch landwirtschaftliche Aktivitäten. Eine potentielle Bedrohung ist zudem eine Krankheit, die ursprünglich durch eingeschleppte Flöhe von eingeführten Nagetieren auf madegassische Nagetiere übertragen wurde.[4]
Der Petter-Bilchschwanz (Eliurus petteri) ist eine Art der Madagaskar-Ratten innerhalb der Bilchschwänze (Eliurus). Die Art lebt endemisch im zentral-östlichen Teil von Madagaskar, wo sie nur aus der Provinz Toamasina bekannt ist.
Petter's tufted-tailed rat (Eliurus petteri) is a rodent in the genus Eliurus found in lowland eastern Madagascar. First described in 1994, it is most closely related to the smaller Eliurus grandidieri. Virtually nothing is known of its natural history, except that it occurs in rainforest and is nocturnal and solitary. It is threatened by destruction and fragmentation of its habitat and is listed as "Vulnerable" on the IUCN Red List.
With a head and body length of 130 to 136 mm (5.1 to 5.4 in), Eliurus petteri is a moderately large species of Eliurus. Its upperparts are gray-brown to gray and contrast sharply with the white underparts. The tail tuft, a characteristic feature of Eliurus, is weakly developed. The skull is delicate and the incisive foramina (openings in the front part of the palate) are short and narrow. The incisors are weak.
Eliurus petteri was first described in 1994 by American zoologist Michael Carleton as part of a revision of the genus Eliurus. Carleton had only three specimens of the new species, which had been collected in 1929, 1956, and 1963 in close proximity in an area of eastern Madagascar.[2] The specific name honors French biologist François Petter, who has contributed to the scientific study of the nesomyines.[3] In 1998, Carleton and Steven Goodman described a related species, Eliurus grandidieri, from the Northern Highlands of Madagascar.[4] Surprisingly, DNA sequence data suggest that this species is more closely related to Voalavo gymnocaudus than to other species of Eliurus; however, E. petteri has not been studied genetically. Carleton and Goodman reported additional occurrences of E. petteri (though within the same general area) in 2007, and formally recognized the "Eliurus petteri group" (including E. grandidieri and E. petteri) as one of five species groups within the genus.[5]
The common names "Petter's Tuft-tailed Rat"[6] and "Petter's Tufted-tailed Rat"[7] have been used for this species. It is now one of twelve species recognized within Eliurus,[8] the most diverse and widespread genus of the native Malagasy rodents (subfamily Nesomyinae).[9]
Eliurus petteri is a fairly large, long-tailed species of Eliurus[2] that resembles a smaller version of Eliurus webbi.[11] It is larger than the closely related E. grandidieri.[4] The fur is soft and fine. The upperparts appear gray-brown to gray in overall color; individual hairs are light gray for most of their length, then pale buff, and dark brown to black at the tip. Dark guard hairs—longer hairs projecting above the main fur—are present, but relatively short. The underparts are entirely white, a feature unique for the genus;[11] even E. grandidieri has dark gray underparts.[4] The transition between the coloration of the upper- and underparts is sharp. The mystacial vibrissae (whiskers on the upper lip) are 50 to 60 mm (2.0 to 2.4 in) long and extend beyond the ears when pressed against the head. In some specimens, the eyes are surrounded by a dark ring. The pinnae (external ears) are dark and appear naked, but are covered by fine brown fur on the outer and by white hairs on the inner surface. The forefeet are entirely white above, but a narrow dark streak is present on the hindfeet. The skin of the tail is dark, sometimes with some white spots on the lower side. Although the tail appears mostly naked, it is covered with inconspicuous hairs.[11] The tail tuft—characteristic of the genus Eliurus—is weakly developed and consists of light brown to grayish brown hairs along the 25 to 30% of the tail closest to the tip.[2]
The skull looks delicate.[2] The interorbital region (between the eyes) is narrow and hourglass-shaped, and the braincase is smooth; both lack conspicuously developed ridges and shelves. The zygomatic arches (cheekbones) are poorly developed. The incisive foramina (openings in the front part of the palate) are short and narrow. The bony palate ends at the level of the back of the third upper molars. The alisphenoid strut (a piece of bone at the back of the skull separating two foramina, or openings) is absent.[11] The strut is present in most Eliurus, but absent in some specimens of E. grandidieri.[12] The subsquamosal fenestrae (openings in the squamosal bone) are fairly large. The auditory bullae are small. The incisors are weak and the enamel on the upper incisors is yellow to light orange. The root of the lower incisor does not project into a distinct capsular process at the back of the mandible (lower jaw),[11] a feature shared only with E. grandidieri among species of Eliurus.[12]
Eliurus petteri is known only from a limited area in the foothills of eastern Madagascar (Toamasina Province), where it occurs from 450 to 1,145 m (1,476 to 3,757 ft) above sea level.[13] It occurs in close proximity with E. minor, E. tanala, and E. webbi, and is probably sympatric with them.[2] Information on the natural history of E. petteri is extremely limited. It occurs in lowland rainforest and is probably arboreal or scansorial (climbing in vegetation).[14] It is nocturnal and solitary and may eat fruits, seeds, and insects.[15] The weak incisors suggest to Carleton that it eats more "indurate" fruits and insects than other Eliurus.[16]
Destruction and fragmentation of its habitat are major threats to Eliurus petteri, which is not known to occur in any protected area. Furthermore, it may be vulnerable to plague transmitted by introduced rodents. Accordingly, it is classified as "Endangered" on the IUCN Red List.[1]
Petter's tufted-tailed rat (Eliurus petteri) is a rodent in the genus Eliurus found in lowland eastern Madagascar. First described in 1994, it is most closely related to the smaller Eliurus grandidieri. Virtually nothing is known of its natural history, except that it occurs in rainforest and is nocturnal and solitary. It is threatened by destruction and fragmentation of its habitat and is listed as "Vulnerable" on the IUCN Red List.
With a head and body length of 130 to 136 mm (5.1 to 5.4 in), Eliurus petteri is a moderately large species of Eliurus. Its upperparts are gray-brown to gray and contrast sharply with the white underparts. The tail tuft, a characteristic feature of Eliurus, is weakly developed. The skull is delicate and the incisive foramina (openings in the front part of the palate) are short and narrow. The incisors are weak.
Eliurus petteri Eliurus generoko animalia da. Karraskarien barruko Nesomyinae azpifamilia eta Nesomyidae familian sailkatuta dago.
Eliurus petteri Eliurus generoko animalia da. Karraskarien barruko Nesomyinae azpifamilia eta Nesomyidae familian sailkatuta dago.
Eliurus petteri is een zoogdier uit de familie van de Nesomyidae. De wetenschappelijke naam van de soort werd voor het eerst geldig gepubliceerd door Carleton in 1994. De naam is vernoemd naar de Franse primatoloog Jean-Jacques Petter.
De soort komt voor in Madagaskar.
Bronnen, noten en/of referentiesEliurus petteri is een zoogdier uit de familie van de Nesomyidae. De wetenschappelijke naam van de soort werd voor het eerst geldig gepubliceerd door Carleton in 1994. De naam is vernoemd naar de Franse primatoloog Jean-Jacques Petter.
Eliurus petteri é uma espécie de roedor da família Nesomyidae.
É endêmica do leste de Madagascar, onde é encontrada somente na província de Toamasina.
Eliurus petteri é uma espécie de roedor da família Nesomyidae.
É endêmica do leste de Madagascar, onde é encontrada somente na província de Toamasina.
Eliurus petteri là một loài động vật có vú trong họ Nesomyidae, bộ Gặm nhấm. Loài này được Carleton miêu tả năm 1994.[2]
Bài viết về một loài thuộc bộ Gặm nhấm này vẫn còn sơ khai. Bạn có thể giúp Wikipedia bằng cách mở rộng nội dung để bài được hoàn chỉnh hơn. Eliurus petteri là một loài động vật có vú trong họ Nesomyidae, bộ Gặm nhấm. Loài này được Carleton miêu tả năm 1994.
페테르술꼬리쥐(Eliurus petteri)는 붉은숲쥐과에 속하는 설치류의 일종이다. 마다가스카르 섬 저지대 동부 지역에서 발견된다. 1994년에 처음 기술되었고, 근연종은 작은 그랑디디에술꼬리쥐(Eliurus grandidieri)이다. 열대우림에서 발견되고 야행성 동물이고 독거 생활을 한다는 사실 이외는 자연사는 사실상 알려져 있지 않다. 서식지 파괴와 파편화 때문에 위협을 받고 있으며, IUCN 적색 목록에서 "멸종위기종"으로 분류하고 있다.[1]
페테르술꼬리쥐(Eliurus petteri)는 붉은숲쥐과에 속하는 설치류의 일종이다. 마다가스카르 섬 저지대 동부 지역에서 발견된다. 1994년에 처음 기술되었고, 근연종은 작은 그랑디디에술꼬리쥐(Eliurus grandidieri)이다. 열대우림에서 발견되고 야행성 동물이고 독거 생활을 한다는 사실 이외는 자연사는 사실상 알려져 있지 않다. 서식지 파괴와 파편화 때문에 위협을 받고 있으며, IUCN 적색 목록에서 "멸종위기종"으로 분류하고 있다.
