The phylogenetics of G. zanzibaricus has a complicated history. In recent years this creature's place within primate phylogeny has been anything but stable. Three major techniques have been utilized: morphological analyses, molecular analyses, and analysis of vocalization data. Analyses based on these data support different hypotheses of relationship and outgroup rooting seems to be a problem. This species was previously known as Galago zanzibaricus, it was then placed in the genus Galagoides as Galagoides zanzibaricus, and was recently returned to the genus Galago.
Galago zanzibaricus has been divided into two subspecies Galago zanzibaricus zanzibaricus and Galago zanzibaricus cocos. There are few morphological differences between the two, and experts cannot tell them apart visually. However, they have highly distinctive vocalizations and Galagoides zanzibaricus cocos was recently elevated to species status, Galagoides cocos.
The large eyes of Zanzibar bushbabies provide excellent vision at night and the large ears provide an acute sense of hearing. Both attributes are important for navigation in the dark. These animals have loud, distinctive calls about which little is known. They may be a sort of "advertising" call, but they also seem to be used as a warning to others when potential predators are nearby. Like most mammals, chemical cues are probably also important in communication.
Communication Channels: visual ; tactile ; acoustic ; chemical
Perception Channels: visual ; tactile ; acoustic ; chemical
Galago zanzibaricus is classified as vulnerable on the IUCN Red List. Although the species as a whole is widespread and fairly common, its fragmented range results in potential extinction of individual populations. The main threat to this creature is habitat loss due to urbanization and deforestization. Also, the indigenous forests used by G. zanzibaricus are being replaced with exotic conifers, which do not provide appropriate habitat for this species. Zanzibar bushbabies are protected by law in Kenya as well as in certain conservatories such as the Tanzania Forest Conservation Group. Despite these efforts, only about 12% of their total range is protected.
US Federal List: no special status
CITES: appendix ii
IUCN Red List of Threatened Species: least concern
There are no negative impacts of Galago zanzibaricus on humans.
Zanzibar bushbabies are important members of the ecosystems in which they live, they are also a potential draw for ecotourism efforts.
Positive Impacts: ecotourism
Zanzibar bushbabies may disperse the seeds of the fruits they consume.
Ecosystem Impact: disperses seeds
The diet of Galago zanzibaricus is mostly composed of fruits, insects, and tree gums. Seasonal variation in resource availability plays an important roll in determining what the animals eat. For example, when it rains a lot there may be an abundance of insects, but when no rain falls Zanzibar bushbabies must look to other resources. Occasionally a Zanzibar Bushbaby will prey on other small animals.
Animal Foods: mammals; insects
Plant Foods: leaves; fruit; nectar; sap or other plant fluids
Primary Diet: omnivore
Galago zanzibaricus, commonly known as Zanzibar bushbabies, can be found in the East African coastal forests from southern Somalia to Mozambique. As the name suggests, they are also native to the island of Zanzibar. However, this species cannot be found on Pemba and Mafia, two nearby islands. Some researchers maintain that the north boundary of this species is the Tana River in Kenya. They are also found up to a few hundred kilometers inland in the Udzungwa Mountains.
Biogeographic Regions: ethiopian (Native )
Galago zanzibaricus lives in tropical, lowland coastal forests. They are also found at higher elevations further inland. They have been found at elevations greater than 1,000 m in the montane forests of Tanzania and Malawi. Population densities are highest near rivers. There is little inter-group exchange among G. zanzibaricus as populations are extremely fragmented.
Range elevation: 0 to above 1,000 m.
Habitat Regions: tropical ; terrestrial
Terrestrial Biomes: forest
Other Habitat Features: riparian
Some reports estimate maximum longevity in the wild is 16.5 years. The longest lifespan of a captive G. zanzibaricus is 12.2 years.
Range lifespan
Status: captivity: 12.2 (high) years.
Typical lifespan
Status: wild: 16.5 (high) years.
Zanzibar bushbabies are generally brown in color. The underside is a lighter shade of brown. The fur is heavy and soft. They have stunningly large red eyes which help them to see at night. The ears are extremely large and the hind limbs are strong and significantly longer than the fore limbs. There is little dimorphism between males and females. The average weight of an adult is 146.8 g. The average weight of an infant at birth is 14.1 g. The body length from head to tail ranges from 14 to 15 cm and the tail length varies from 12 to 15 cm.
Average mass: 146.8 g.
Range length: 140 to 150 mm.
Other Physical Features: endothermic ; homoiothermic; bilateral symmetry
Sexual Dimorphism: sexes alike
Their arboreal lifestyle protects Zanzibar bushbabies from many potential predators. They produce warning calls in the presence of genets and puff adders, suggesting that they may be predators of G. zanzibaricus.
Known Predators:
This species is polygynous. Females form small, territorial groups. Upon entrance into such a group, a male usually mates with all members (usually 1-3 females). The females provide the vast majority of parental care. Young females stay within their natal groups and young males disperse. Details of their social behavior are not know because of their elusive behavior.
Mating System: polygynous
Reproduction is seasonal, and Zanzibar bushbabies give birth twice a year. Births occur in August to October and February to March. The average gestation period is 120 days. Females usually give birth to one offspring, although in captivity on a few occasions twins have been born. The average number of offspring in captivity is 1.3 but is probably much closer to 1.0 in the wild. Weaning of infants takes place at around four weeks of age. Weaning is done just before the food supply is the lowest (December to January) and directly after food sources are most abundant (May to June). Female G. zanzibaricus mature sexually at around 265 days of age. Males take about 100 days longer to mature (approx. 1 year). The vagina is sealed at all times except during estrus and birth.
Breeding interval: Zanzibar bushbabies breed twice a year depending on seasonal conditions.
Breeding season: Breeding generally occurs between July and March.
Range number of offspring: 1 to 2.
Average number of offspring: 1.3.
Average gestation period: 120 days.
Average weaning age: 4 weeks.
Average age at sexual or reproductive maturity (female): 265 days.
Average age at sexual or reproductive maturity (male): 365 days.
Key Reproductive Features: iteroparous ; seasonal breeding ; gonochoric/gonochoristic/dioecious (sexes separate); sexual ; fertilization ; viviparous
Little is know about parental investment in Zanzibar bushbabies. Females primarily care for the young. Occasionally, male bushbabies will sleep with a female and what is thought to be their offspring. Female young remain in their natal group.
Parental Investment: pre-fertilization (Provisioning, Protecting: Female); pre-hatching/birth (Provisioning: Female, Protecting: Female); pre-weaning/fledging (Provisioning: Female, Protecting: Female); post-independence association with parents
Galago Zanzibar (Galago zanzibaricus) a zo ur bronneg hag a vev e Tanzania (Afrika ar Reter). Un isspesad a vev e Zanzibar, hag un isspesad all war an douar-bras.
Der Sansibar-Galago oder Sansibar-Zwerggalago (Paragalago zanzibaricus, Syn.: Galago zanzibaricus, Galagoides zanzibaricus) ist eine Primatenart aus der Familie der Galagos (Galagonidae). Der Grant-Galago wird seit 2001 als getrennte Art geführt, dafür wird der Udzungwa-Galago, der früher als eigene Art galt, heute mit dem Sansibar-Galago zusammengefasst.
Sansibar-Galagos sind wie alle Galagos sehr kleine Primaten. Sie erreichen eine Kopfrumpflänge von 12 bis 19 Zentimetern, eine Schwanzlänge von 17 bis 27 Zentimetern und ein Gewicht von 100 bis 200 Gramm. Ihr Fell ist an der Oberseite und an der Außenseite der Gliedmaßen rotbraun gefärbt, der Bauch ist hellgelb. Die Hinterbeine sind lang und kräftig, der lange Schwanz ist leicht buschig. Der Kopf weist eine lange, zugespitzte Schnauze auf, die Augen sind groß und von auffälligen Ringen umgeben, die Ohren sind ebenfalls groß, unbehaart und sehr beweglich.
Sansibar-Galagos sind an der Ostküste Afrikas beheimatet. Ihr Verbreitungsgebiet umfasst die Küstenregionen Kenias und Tansanias. In Tansania finden sie sich auch auf der Insel Sansibar sowie im Landesinneren, etwa dem Udzungwa-Bergland. Unklar ist, ob die Art auch im südlichen Somalia und dem nördlichen Mosambik vorkommt. Ihr Lebensraum sind die tropischen Küstenwälder, aber auch Gebirgswälder bis in 1100 Meter Seehöhe.
Diese Primaten sind nachtaktive Baumbewohner, die tagsüber in Baumhöhlen oder Blätternestern schlafen. In der Nacht begeben sie sich auf Nahrungssuche, wobei sie sich schnell auf allen vieren oder mit kurzen Sprüngen im Geäst vorwärtsbewegen. Es sind territoriale Tiere, ihre Reviere umfassen 1,6 bis 2,8 Hektar. Die Reviere der Männchen sind deutlich voneinander abgegrenzt, überlappen sich aber häufig mit dem eines oder mehrerer Weibchen. Häufig verbringen das Männchen und die Weibchen, deren Revier sich überlappt, den Tag gemeinsam schlafend, auf Nahrungssuche geht jedoch jedes ausgewachsene Tier allein.
Die Nahrung dieser Tiere besteht aus Früchten, Insekten und Baumsäften, die Zusammensetzung variiert jedoch nach Jahreszeit.
Zweimal im Jahr bringt das Weibchen nach einer rund 120-tägigen Tragzeit ein oder zwei Jungtiere zur Welt. Diese werden bereits nach vier Wochen entwöhnt und erreichen mit 8 bis 12 Monaten die Geschlechtsreife.
Hauptgefahr für die Sansibar-Galagos stellt die Zerstörung ihres Lebensraums dar. Die Bestände sind aber derzeit stabil und die Art wird insgesamt von der IUCN als „nicht gefährdet“ (least concern) gelistet. Augenmerk verdient allerdings die auf Sansibar lebende Population (Paragalago zanzibaricus zanzibaricus), deren Bestände zurückgehen und die laut IUCN als „stark gefährdet“ (endangered) gilt.
In Europa wird die Art nicht mehr gehalten, ehemalige Halter sind Duisburg, Köln und Wrocław.[1]
Der Sansibar-Galago oder Sansibar-Zwerggalago (Paragalago zanzibaricus, Syn.: Galago zanzibaricus, Galagoides zanzibaricus) ist eine Primatenart aus der Familie der Galagos (Galagonidae). Der Grant-Galago wird seit 2001 als getrennte Art geführt, dafür wird der Udzungwa-Galago, der früher als eigene Art galt, heute mit dem Sansibar-Galago zusammengefasst.
The Zanzibar bushbaby, Matundu dwarf galago, Udzungwa bushbaby, or Zanzibar galago (Paragalago zanzibaricus[3]) is a primate of the family Galagidae. An adult typically weighs 150 grams (5.3 oz), its head-body length is 14 to 15 centimetres (5.5 to 5.9 in) and its tail is between 12 and 15 centimetres (4.7 and 5.9 in) long. Like other species of galagos, its diet consists mainly of fruit, insects, and tree gums.[4]
It is the most widespread and abundant bushbaby in the coastal forests of Tanzania. It is thought to prefer the mid to high canopy of tropical coastal forest, submontane and lowland tropical forest. It has one or two young per year.[2]
There are two subspecies of this bushbaby:
The Zanzibar bushbaby, Matundu dwarf galago, Udzungwa bushbaby, or Zanzibar galago (Paragalago zanzibaricus) is a primate of the family Galagidae. An adult typically weighs 150 grams (5.3 oz), its head-body length is 14 to 15 centimetres (5.5 to 5.9 in) and its tail is between 12 and 15 centimetres (4.7 and 5.9 in) long. Like other species of galagos, its diet consists mainly of fruit, insects, and tree gums.
It is the most widespread and abundant bushbaby in the coastal forests of Tanzania. It is thought to prefer the mid to high canopy of tropical coastal forest, submontane and lowland tropical forest. It has one or two young per year.
There are two subspecies of this bushbaby:
P. z. zanzibaricus, from Zanzibar P. z. udzungwensis, from mainland TanzaniaEl gálago de Zanzibar (Galagoides zanzibaricus) es una especie de primate estrepsirrino perteneciente a la familia Galagidae.[2] Un adulto pesa de 100 a 300 gramos y mide entre 34 y 39,5 centímetros. Como las otras especies de gálago, su dieta consiste principalmente de frutas e insectos.[3]
Es endémico de los bosques de Tanzania (incluidas algunas islas del archipiélago de Zanzíbar).[1]
Se reconocen las siguientes:[1]
El gálago de Zanzibar (Galagoides zanzibaricus) es una especie de primate estrepsirrino perteneciente a la familia Galagidae. Un adulto pesa de 100 a 300 gramos y mide entre 34 y 39,5 centímetros. Como las otras especies de gálago, su dieta consiste principalmente de frutas e insectos.
Galago zanzibaricus Galago generoko espezietako bat da. Primate estrepsirrino bat da. Helduak direnean 100 eta 300 gramo arteko pisua dute eta 34-40 zentimetro arteko tamaina. Batez ere fruituak jaten dituzte. Denobra batez galago hau eta Galago demidoff espezieentzat beste genero bat (Galagoides) sortu zen. Hala ere gaur egun berriro ere Galagon sailkatzen dira molekulatan eginiko ikerketa dela eta.
Artikulu hau biologiari buruzko zirriborroa da. Wikipedia lagun dezakezu edukia osatuz. Galago zanzibaricus Galago generoko espezietako bat da. Primate estrepsirrino bat da. Helduak direnean 100 eta 300 gramo arteko pisua dute eta 34-40 zentimetro arteko tamaina. Batez ere fruituak jaten dituzte. Denobra batez galago hau eta Galago demidoff espezieentzat beste genero bat (Galagoides) sortu zen. Hala ere gaur egun berriro ere Galagon sailkatzen dira molekulatan eginiko ikerketa dela eta.
Il galagone nano (Galagoides zanzibaricus (Matschie, 1893)) è un primate strepsirrino della famiglia Galagidae.[2]
Misura una trentina di centimetri di lunghezza, per un peso di 150 g.
Il pelo è soffice e folto, di colore solitamente bruno, con sfumature più chiare nella zona ventrale.
Gli occhi e le orecchie sono molto grandi, le mani sono dotate di dita lunghe e dai polpastrelli allargati per una migliore presa su superfici lisce. Le zampe posteriori sono più lunghe di quelle anteriori
Si tratta di animali notturni, che durante il giorno dormono in cavità dei tronchi d'albero od in nidi d'uccello abbandonati. Sia i maschi che le femmine occupano un territorio di circa 2,2 ettari che non confina con altri territori: la frammentazione della specie è quindi molto elevata e i vari gruppi raramente vengono in contatto fra loro. Occasionalmente le femmine dormono insieme in gruppi di due, mentre i maschi sono sempre solitari.
La dieta è costituita da insetti, frutti maturi e gomma: la proporzione fra questi tre cibi varia a seconda della stagione, infatti dopo le piogge i galagoni nani si nutrono soprattutto d'insetti, mentre durante i periodi siccitosi sopravvivono nutrendosi quasi esclusivamente di gomma, predando occasionalmente altri piccoli animali.
La stagione riproduttiva va da luglio e marzo: la gestazione dura solo due mesi, al termine dei quali viene dato alla luce solitamente un unico cucciolo, che viene svezzato a un mese d'età ed è pronto a riprodursi a nove mesi se femmina, a un anno se maschio.
I maschi frequentano i territori delle femmine e si accoppiano con tutte quelle presenti nel territorio: in condizioni ottimali, le femmine allevano due cucciolate, una a settembre ed una a marzo.
In cattività, questi animali possono vivere oltre i 12 anni, anche se in natura sono stai registrati casi di individui di 15-16 anni d'età.
Con due sottospecie (G. z. udzungwensis e G. z. zanzibaricus) è diffuso in Tanzania, a Zanzibar, e sull'isola di Mafia.[1]
Preferiscono le aree di foresta pluviale costiera, anche se li si trova anche al di sopra dei 1000 m d'altezza.
Il galagone nano (Galagoides zanzibaricus (Matschie, 1893)) è un primate strepsirrino della famiglia Galagidae.
잔지바르갈라고(Paragalago zanzibaricus)는 갈라고과에 속하는 영장류의 하나이다.[2] 잔지바르부시베이비라고도 부른다. 다 자라면 몸무게는 보통 100~300그램이며, 몸 길이는 34-39.5 cm정도 된다. 갈라고 중 다른 종들처럼, 이들의 먹이는 주로 과일로 구성되어 있다.
이 부시베이비의 아종은 2종이 있다.
잔지바르갈라고(Paragalago zanzibaricus)는 갈라고과에 속하는 영장류의 하나이다. 잔지바르부시베이비라고도 부른다. 다 자라면 몸무게는 보통 100~300그램이며, 몸 길이는 34-39.5 cm정도 된다. 갈라고 중 다른 종들처럼, 이들의 먹이는 주로 과일로 구성되어 있다.
이 부시베이비의 아종은 2종이 있다.
Paragalago zanzibaricus zanzibaricus Paragalago zanzibaricus cocos
