Possible economic benefits may be ecotourism because of its abundance in tropical rainforests.
Positive Impacts: ecotourism
Ixodes loricatus is a tick that prefers marsupial hosts. As much as 26% of big-eared opossums may be infested with this tick, which is involved in the transmission of Lyme disease.
Negative Impacts: injures humans (carries human disease)
Didelphis aurita is one of the most common marsupials in its home range. Didelphis aurita was trapped with the highest frequency in most of the studies that were conducted in coastal Brazil involving small mammals. However, deforestation rates in that area are high and only 5% of the original rainforest remains. This may pose a threat to big-eared opossums and other rainforest species in the future.
US Federal List: no special status
CITES: no special status
IUCN Red List of Threatened Species: least concern
Didelphis aurita has a cervical scent gland. A scent-marking behavior can release the secretions of this sebaceous gland into environment where they are used for social communication.
Communication Channels: chemical
Other Communication Modes: scent marks
Perception Channels: visual ; tactile ; acoustic ; chemical
Didelphis aurita and other South American marsupials are the preferred host of Ixodes loricatus, a tick species. Didelphis aurita preys upon many different kinds of insects and fruits. The latter may help seed dispersal.
Ecosystem Impact: disperses seeds
Didelphis aurita is an opportunistic omnivore that mostly feeds on arthropods and fruit; but it also consumes other invertebrates and small vertebrates. Several kinds of invertebrates, fruits, and vertebrates have been identified through scat sampling, and even some rubbish has been found in animals that are surrounded by urban areas. Invertebrates: Diplopoda, Opiliones, Coleoptera (Scarabaeoidea), Orthoptera, Gastropoda, Lepidoptera larvae, Hymenoptera (Formicidae), Isopoda, Crabs (Aegla) Fruit: 13 Families and 22 species identified. Most fruit is consumed during the wet season when it is most abundant. Vertebrates: Turdus rufiventris, Liotyphlops beui, Philander frenata, fish, other small mammals.
Animal Foods: birds; mammals; reptiles; fish; insects; terrestrial worms; aquatic crustaceans
Plant Foods: fruit
Primary Diet: omnivore
Didelphis aurita is a Neotropical marsupial found along the Atlantic coast of Brazil to northeastern Argentina and southeastern Paraguay.
Biogeographic Regions: neotropical (Native )
Didelphis aurita lives in Atlantic rainforests, secondary Atlantic forests, and Araucaria highlands. Didelphis aurita is also found in forests that have been fragmented by urban development and deforestation. There are two discrete seasons where it lives. A warm rainy season lasts from September to March and a cool dry season from April to August. The mean annual temperature is between 17 °C and 24 °C and the mean annual rainfall is from 1350 mm to 2000 mm.
Range elevation: 1000 (high) m.
Habitat Regions: tropical ; terrestrial
Terrestrial Biomes: rainforest
Little information is available on specific lifespans of Didelphis aurita, but its close relative D. marsupialis has an average life span of 2 years in the wild.
Range lifespan
Status: captivity: 7 (high) years.
Average lifespan
Status: wild: 2 years.
Average lifespan
Status: captivity: 4 years.
Big-eared opossums closely resemble another Neotropical marsupial, common opossums. In fact D. aurita was once considered a subspecies of D. marsupialis. Didelphis aurita has prominent facial markings and a conspicuous black line down the center of its forehead. The ears are naked and black. Its fur is dirty yellow with black or gray tips. Didelphis aurita has a long, prehensile tail that is furred at the base. The fur at the base of the tail is about as long as the hind legs and is at least half black and half white with the black portion sometimes longer. Didelphis marsupialis does not have as much fur on the base of its tail and it usually has a shorter black part. This is one characteristic that can be used to distinguish between D. aurita and D. marsupialis, besides geographic location.
Male D. aurita tend to be larger than females. Adult males range from 1500g to 1880g during the reproductive season. Females in the reproductive season can weigh anywhere from 1000g to 1300g.
Range mass: 700 to 1880 g.
Range length: 310 to 390 mm.
Average basal metabolic rate: 611.34 cm3.O2/g/hr.
Sexual Dimorphism: male larger
Other Physical Features: endothermic ; bilateral symmetry
Information on specific predators of this species is not available, but some of the larger carnivores in that region that may feed on Didelphis aurita are ocelots, pumas, and jaguarundis. Another likely predator is jararaca. Bothrops jararaca is a venomous pitviper in a group commonly known as lanceheads. It is a nocturnal hunter and its close relative B. asper is known to feed on Didelphis marsupialis in Mexico and Guatemala.
In response to a predator, D. aurita may act like its relative Didelphis virginiana and "play possum" or feign death to fool a predator. Additionally, D. marsupialis is surprisingly resistant to the venomous bite of B. asper. Didelphis aurita may also have some resistance to venom of B. jararaca.
Known Predators:
Didelphis aurita is considered to be promiscuous because non-territorial males’ home ranges overlap with several territorial females and other non-territorial males’ home ranges. Therefore, the females defend areas with sufficient resources and males seeking mates roam around looking for them. Licking and scratching of the cervical scent gland and vocalization help males find females.
Mating System: polygynandrous (promiscuous)
In the case of Didelphis aurita the breeding season coincides with the wet season. This is when fruit is most abundant. Like other marsupials, Didelphis aurita undergoes a brief gestation period and gives birth to tiny young that crawl into the mother’s pouch where they attach to a nipple and feed for about 100 days. At the time of weaning it is usually the end of the rainy season so there is still food available for the young. Females may synchronize their reproduction using photoperiod. Individuals born at the end of the current breading season are able to reproduce at the start of the next breading season. Using information from other South American Didelphids like Didelphis marsupialis the females can have 2 to 3 litters per breeding season with an average of 7.3 young per litter.
Breeding interval: Big-eared opossums have 2 to 3 litters each breading season.
Breeding season: July to March
Average number of offspring: 7.
Average gestation period: 14 days.
Range weaning age: 100 (high) days.
Range age at sexual or reproductive maturity (female): 170 to 336 days.
Key Reproductive Features: iteroparous ; seasonal breeding ; gonochoric/gonochoristic/dioecious (sexes separate); sexual ; viviparous
Average number of offspring: 6.2.
Female Didelphis aurita carry the young in their pouches until weaning which could be up to 100 days from birth. This provides protection and nutrition for the underdeveloped young.
Parental Investment: pre-weaning/fledging (Provisioning: Female, Protecting: Female)
L'opòssum orellut (Didelphis aurita) és una espècie d'opòssum de Sud-amèrica. Viu a l'Argentina, el Brasil i el Paraguai.[1]
Aquesta espècie, antigament considerada una subpoblació de l'opòssum comú (D. marsupialis), fou originalment descrita com a D. azarae per Coenraad Jacob Temminck el 1824, però aquest nom fou incorrectament donat a l'opòssum d'Azara durant més de 160 anys. Per això, el nom azarae ha estat abandonat.
L'opòssum orellut (Didelphis aurita) és una espècie d'opòssum de Sud-amèrica. Viu a l'Argentina, el Brasil i el Paraguai.
Aquesta espècie, antigament considerada una subpoblació de l'opòssum comú (D. marsupialis), fou originalment descrita com a D. azarae per Coenraad Jacob Temminck el 1824, però aquest nom fou incorrectament donat a l'opòssum d'Azara durant més de 160 anys. Per això, el nom azarae ha estat abandonat.
Das Großohropossum[1] (Didelphis aurita), in Brasilien Saruê[2] genannt, gehört zur Familie der Beutelratten und ist eine der in Südamerika lebenden Opossum-Arten. Ihr Verbreitungsgebiet erstreckt sich vom Nordosten Brasiliens über Paraguay bis Argentinien.
Das Großohropossum ist dem Südopossum (Didelphis marsupialis) sehr ähnlich.[3] Es erreicht vom Kopf bis zur Schwanzspitze eine Länge von 81 cm[2], wobei die Männchen größer als die Weibchen werden.[4] Für Tiere aus Minas Gerais (Brasilien) wird eine Kopf-Rumpf-Länge von 35,5 bis 37,3 cm, eine Schwanzlänge von 35,5 bis 37,7 cm und ein Gewicht von 939 bis 1159 g angegeben.[5]
Das Großohropossum hat eine auffällige Gesichtszeichnung mit einem deutlichen schwarzen Streifen in der Mitte der Stirn. Seine schwarzen Ohren, in der Erstbeschreibung als „groß und beinahe scheibenförmig“ beschrieben, sind unbehaart. Die Fellhaare sind von schmutzig gelber Farbe mit schwarzen oder grauen Spitzen. Der lange Greifschwanz trägt nur an der Basis Fell und ist ansonsten nackt. Der behaarte Teil des Schwanzes ist etwa so lang wie die Hinterbeine und mindestens zur Hälfte schwarz, die andere Hälfte ist weiß, wobei der schwarze Teil auch länger sein kann. Beim Südopossum ist der Schwanz weniger behaart und der schwarze Teil ist kürzer.[4]
Während das Südopossums hauptsächlich den Amazonas-Regenwald bewohnt, ist der Lebensraum des Großohropossums der Atlantische Regenwald und das Araukarien Hochland.[6] Das Großohropossum ist ein nachtaktiver, allein lebender Allesfresser (Omnivore). Es hält sich überwiegend am Boden auf. Seine Vordergliedmaßen und Krallen ermöglichen es ihm, auch auf Bäume zu klettern.[7]
Das Großohropossum paart sich mit mehr als einem Geschlechtspartner (Promiskuität). Seine Paarungszeit fällt in die Regenzeit von Juli bis März, wenn genügend Früchte vorhanden sind. Je Saison sind bis zu drei Würfe möglich, mit jedem Wurf kommen sechs bis sieben Junge zur Welt. Nach einer kurzen Tragzeit (etwa 14 Tage) kriechen die Jungen in den Beutel der Mutter in dem sie etwa 100 Tage gesäugt werden. Die Absetzung erfolgt zum Ende der Regenzeit, wenn es noch genügend Früchte gibt.[4]
Früher wurde das Großohropossum als eine räumlich getrennte (disjunkte) Population des Südopossums (Didelphis marsupialis) angesehen.[8] Ob es sich um eine eigene Art oder um eine allopatrische Unterart des Südopossums handelt, ist Anlass für Diskussionen.[6] Die Trennung wurde von Corbet und Hill (1991) nicht akzeptiert.[9]
Das Großohropossum wird lokal als Geflügelräuber, zum Sport oder zur Nahrungsgewinnung bejagt. Geringe Bedeutung hat auch die Bejagung zur Fellgewinnung. Die Abholzung hat einen Einfluss auf manche Subpopulation, z. B. im östlichen Paraguay. Allerdings scheint die Art nicht negativ durch menschliche Besiedlung beeinflusst zu sein und kommt in einigen Schutzgebieten vor. Deshalb und auf Grund des großen Verbreitungsgebietes, der angenommenen großen Population und der Toleranz gegenüber Veränderungen seines Lebensraumes wird die Art von der IUCN (International Union for Conservation of Nature and Natural Resources) als nicht gefährdet (Least Concern, LC) eingestuft.
Das Großohropossum (Didelphis aurita), in Brasilien Saruê genannt, gehört zur Familie der Beutelratten und ist eine der in Südamerika lebenden Opossum-Arten. Ihr Verbreitungsgebiet erstreckt sich vom Nordosten Brasiliens über Paraguay bis Argentinien.
The big-eared opossum (Didelphis aurita), also known as a saruê,[3][4] is an opossum species from South America. It is found in Argentina, Brazil and Paraguay.[1]
This species, which was considered a population of the common opossum (D. marsupialis) for some time, was originally described as D. azarae by Coenraad Jacob Temminck in 1824, but this name was incorrectly given to the white-eared opossum (D. albiventris) for over 160 years. As such, the name azarae has been abandoned.[1]
Due to carrying offspring, female big-eared opossums tend to stay in smaller areas and reduce their movements.
The big-eared opossum (Didelphis aurita), also known as a saruê, is an opossum species from South America. It is found in Argentina, Brazil and Paraguay.
This species, which was considered a population of the common opossum (D. marsupialis) for some time, was originally described as D. azarae by Coenraad Jacob Temminck in 1824, but this name was incorrectly given to the white-eared opossum (D. albiventris) for over 160 years. As such, the name azarae has been abandoned.
Due to carrying offspring, female big-eared opossums tend to stay in smaller areas and reduce their movements.
Grandorela didelfo (latine Didelphis aurita) estas biologia specio el la genro de didelfoj - malgrandaj mamuloj el la ordo de marsupiuloj, grimpanta sur arboj.
La specio troveblas en Suda Ameriko, precipe en Argentino, Brazilo kaj Paragvajo. Ĝi estas tre ofta kaj ne estas endanĝerita, ĉar ĝi sukcesas vivi eĉ en urboj.
La zarigüeya brasileña (Didelphis aurita) también es conocida por los nombres de gambá, mbicuré overo y zarigüeya orejuda es una especie de marsupial didelfimorfo de la familia Didelphidae propia del este y centro-sur de Brasil, sureste de Paraguay y nordeste de Argentina.
La zarigüeya brasileña (Didelphis aurita) también es conocida por los nombres de gambá, mbicuré overo y zarigüeya orejuda es una especie de marsupial didelfimorfo de la familia Didelphidae propia del este y centro-sur de Brasil, sureste de Paraguay y nordeste de Argentina.
Didelphis aurita Didelphis generoko animalia da. Didelphimorphia ordenaren barruko ugaztuna da. Didelphinae azpifamilia eta Didelphidae familian sailkatuta dago.
Didelphis aurita Didelphis generoko animalia da. Didelphimorphia ordenaren barruko ugaztuna da. Didelphinae azpifamilia eta Didelphidae familian sailkatuta dago.
Opossum commun du Brésil
Didelphis aurita, l’Opossum commun du Brésil ou Sarigue du Sud-Est brésilien[1], est une espèce d'opossums d'Amérique (famille des Didelphidae). On le rencontre en Argentine, au Brésil et au Paraguay.
Opossum commun du Brésil
Didelphis aurita, l’Opossum commun du Brésil ou Sarigue du Sud-Est brésilien, est une espèce d'opossums d'Amérique (famille des Didelphidae). On le rencontre en Argentine, au Brésil et au Paraguay.
Didelphis aurita of grootooropossum is een zoogdier uit de familie van de Didelphidae. De wetenschappelijke naam van de soort werd voor het eerst geldig gepubliceerd door Wied-Neuwied in 1826.
De soort komt voor in Brazilië, Paraguay en Argentinië.
Bronnen, noten en/of referentiesDidelphis aurita of grootooropossum is een zoogdier uit de familie van de Didelphidae. De wetenschappelijke naam van de soort werd voor het eerst geldig gepubliceerd door Wied-Neuwied in 1826.
O gambá-de-orelha-preta (Didelphis aurita), também conhecido como saruê,[2] sariguê,[3] micurê[4] e mucura,[5] é uma espécie de gambá que habita o Brasil, Argentina e Paraguai. Esta espécie, que por algum tempo foi considerada uma população de gambá-comum (D. marsupialis), foi originalmente descrita como D. azarae por Coenraad Jacob Temminck em 1824, mas esse nome foi dado incorretamente ao gambá-de-orelha-branca (D. albiventris) por mais de 160 anos. Como tal, o nome azarae foi abandonado.[6]
O nome gambá possui origem na língua tupi-guarani[7] podendo advir de gã'bá (seio oco) ou gua (seio, ventre) + ambá/embá (vazio, oco).[8] As designações sariguê (e seu feminimo sarigueia) e saruê advém do tupi sari'gwe,[3] enquanto micurê também tem origem indígena, mas sua etimologia é desconhecida.[4] Outro de seus nomes, mucura, originou-se no tupi mu'kura, que significa gambá.[5]
O gambá-de-orelha-preta, em média, possui 37 centímetros de comprimento no corpo, e outros 33 centímetros em sua cauda. Por esse motivo, é uma das maiores espécies de marsupais no Brasil. Pesam entre 1,3 e 1,5 quilo, com as fêmeas sendo ligeiramente mais leves e menores. Sua coloração é cinza ou preta, com uma camada de sobrepelos com pontas brancas. Seu rosto é marcado por três estrias escuras, uma junto a cada olho e uma ao longo da linha mediana do rosto.[9] Possui uma glândula que exala odor desagradável na região posterior do corpo que é liberado quando o animal se sente ameaçado e é obrigado a se fingir de morto.[10] As fêmeas possuem, em média, nove mamilos protegidos pelo marsúpio.[9]
O gambá-de-orelha-preta é onívoro e se alimenta de artrópodes (sobretudo Hymenoptera, Isoptera e Coleoptera), pequenos vertebrados (roedores, aves e lagartos) e frutos. Sua área de vida varia entre 1,3 e 9,5 hectares, mas num dia varia entre 0,5 e 2,7 hectares. As fêmeas costumam movimentar-se menos, sobretudo em busca de recursos, e possuem território mais estável. Os machos, por sua vez, alteram seu padrão de deslocamento durante o período de acasalamento. Sua locomoção, grosso modo, é terrestre, utilizando o solo. O gambá-de-orelha-preta é solitário e notívago. Em cativeiro, vivem até quatro anos. Com cinco meses, já são capazes de se reproduzir. Normalmente acasalam duas vezes ao ano, gerando prole entre a metade da estação seca e o fim da estação chuvosa. Em média, cada ninhada gera de 6,5 a 8,6 filhotes.[9]
O gambá-de-orelha-preta (Didelphis aurita), também conhecido como saruê, sariguê, micurê e mucura, é uma espécie de gambá que habita o Brasil, Argentina e Paraguai. Esta espécie, que por algum tempo foi considerada uma população de gambá-comum (D. marsupialis), foi originalmente descrita como D. azarae por Coenraad Jacob Temminck em 1824, mas esse nome foi dado incorretamente ao gambá-de-orelha-branca (D. albiventris) por mais de 160 anos. Como tal, o nome azarae foi abandonado.
Didelphis aurita[2][3][4] är en pungdjursart som först beskrevs av Maximilian zu Wied-Neuwied 1826. Didelphis aurita ingår i släktet Didelphis och familjen pungråttor.[5][6] IUCN kategoriserar arten globalt som livskraftig.[1] Inga underarter finns listade.[5]
Arten når en kroppslängd (huvud och bål) av 355 till 373 mm, en svanslängd av 355 till 377 mm och en vikt av 939 till 1159 g. Den har i genomsnitt 57 mm långa bakfötter och 51 mm långa öron.[7]
Pungdjuret förekommer i sydöstra Brasilien och i östra Paraguay samt i nordöstra Argentina. Habitatet utgörs av olika slags skogar.[1]
Wikimedia Commons har media som rör Didelphis aurita.
Wikispecies har information om Didelphis aurita.
Didelphis aurita är en pungdjursart som först beskrevs av Maximilian zu Wied-Neuwied 1826. Didelphis aurita ingår i släktet Didelphis och familjen pungråttor. IUCN kategoriserar arten globalt som livskraftig. Inga underarter finns listade.
Arten når en kroppslängd (huvud och bål) av 355 till 373 mm, en svanslängd av 355 till 377 mm och en vikt av 939 till 1159 g. Den har i genomsnitt 57 mm långa bakfötter och 51 mm långa öron.
Pungdjuret förekommer i sydöstra Brasilien och i östra Paraguay samt i nordöstra Argentina. Habitatet utgörs av olika slags skogar.
Didelphis aurita là một loài động vật có vú trong họ Didelphidae, bộ Didelphimorphia. Loài này được Wied-Neuwied mô tả năm 1826.[2]
.png){kind=small}
Bài viết liên quan đến động vật có vú này vẫn còn sơ khai. Bạn có thể giúp Wikipedia bằng cách mở rộng nội dung để bài được hoàn chỉnh hơn. Didelphis aurita là một loài động vật có vú trong họ Didelphidae, bộ Didelphimorphia. Loài này được Wied-Neuwied mô tả năm 1826.
Большеухий опоссум[1] (лат. Didelphis aurita) — млекопитающее из семейства опоссумов. Обитает в тропических лесах Бразилии, Аргентины и Парагвая. Может достигать в длину от 60 до 90 см и весить до 1,6 кг. Ведёт древесный образ жизни. Питается фруктами, червями и насекомыми. Убежище находит в дуплах деревьев, среди листьев и в гнёздах птиц. Период беременности длится около 13 дней. В год бывает 2 помёта, в каждом помёте 8 детёнышей, которые питаются молоком матери в течение 3-х месяцев.
Большеухий опоссум (лат. Didelphis aurita) — млекопитающее из семейства опоссумов. Обитает в тропических лесах Бразилии, Аргентины и Парагвая. Может достигать в длину от 60 до 90 см и весить до 1,6 кг. Ведёт древесный образ жизни. Питается фруктами, червями и насекомыми. Убежище находит в дуплах деревьев, среди листьев и в гнёздах птиц. Период беременности длится около 13 дней. В год бывает 2 помёта, в каждом помёте 8 детёнышей, которые питаются молоком матери в течение 3-х месяцев.
큰귀주머니쥐 (Didelphis aurita)는 남아메리카에 서식하는 주머니쥐의 일종이다. 아르헨티나와 브라질, 파라과이에서 발견된다.[1]
다음은 주머니쥐속의 계통 분류이다.[3]
주머니쥐속
