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El lèmur ratolí de Danfoss (Microcebus danfossi) és una espècie de lèmur ratolí endèmic de Madagascar. Viu als boscos caducifolis de l'oest de l'illa, en una zona situada entre el riu Sofia i el riu Maevarano.[1] Amb una mida total de 25-29 cm, incloent-hi 15-17 cm de cua, és un lèmur ratolí relativament gran i vermellós.[1]
El lèmur ratolí de Danfoss (Microcebus danfossi) és una espècie de lèmur ratolí endèmic de Madagascar. Viu als boscos caducifolis de l'oest de l'illa, en una zona situada entre el riu Sofia i el riu Maevarano. Amb una mida total de 25-29 cm, incloent-hi 15-17 cm de cua, és un lèmur ratolí relativament gran i vermellós.
Danfoss-musemaki (Microcebus danfossi) er en art i gruppen af lemurer blandt halvaberne. Den er opkaldt efter det danske firma Danfoss. Danfoss-musemaki tilhører slægten Microcebus (musemakier), der igen tilhører familien Cheirogaleidae (dværglemurer). Dens nærmeste slægtninge anses for at være Microcebus bongolavensis og Microcebus ravelobensis.[3]
Danfossi er af hamster-størrelse med en vægt på 30 til 60 gram. Dyret lever i Madagaskars skove, hvor den er nataktiv og lever af frugter og insekter. Om dagen sover den i huler i træer eller i reder bygget af blade. Den er usædvanlig derved at den er i stand til at sænke stofskiftet om dagen i den kolde årstid. Dens temperatur kan dermed falde med næsten 50%.[4]
Baseret på undersøgelser af udbredelsen af arten i det nordvestlige Madagaskar mellem floderne Sofia og Maevarano er det anslået at der er mellem 4,5 og 8,5 individer per kvadratkilometer, hvilket har betydet at den er blevet karakteriseret som "moderat truet" i henhold til IUCN-kriterierne.[5]
Det var forskere fra Tierärzliche Hochschule i Hannover og universitetet i Antananarivo, der efter at have opdaget tre nye lemurarter i midten af 2000'erne,[6] opkaldte den ene art efter Danfoss. Danfoss støtter lemur-forskningen og bevarelsen af skovmiljøet hvor de lever.[4]
Danfoss-musemaki (Microcebus danfossi) er en art i gruppen af lemurer blandt halvaberne. Den er opkaldt efter det danske firma Danfoss. Danfoss-musemaki tilhører slægten Microcebus (musemakier), der igen tilhører familien Cheirogaleidae (dværglemurer). Dens nærmeste slægtninge anses for at være Microcebus bongolavensis og Microcebus ravelobensis.
Danfossi er af hamster-størrelse med en vægt på 30 til 60 gram. Dyret lever i Madagaskars skove, hvor den er nataktiv og lever af frugter og insekter. Om dagen sover den i huler i træer eller i reder bygget af blade. Den er usædvanlig derved at den er i stand til at sænke stofskiftet om dagen i den kolde årstid. Dens temperatur kan dermed falde med næsten 50%.
Baseret på undersøgelser af udbredelsen af arten i det nordvestlige Madagaskar mellem floderne Sofia og Maevarano er det anslået at der er mellem 4,5 og 8,5 individer per kvadratkilometer, hvilket har betydet at den er blevet karakteriseret som "moderat truet" i henhold til IUCN-kriterierne.
Det var forskere fra Tierärzliche Hochschule i Hannover og universitetet i Antananarivo, der efter at have opdaget tre nye lemurarter i midten af 2000'erne, opkaldte den ene art efter Danfoss. Danfoss støtter lemur-forskningen og bevarelsen af skovmiljøet hvor de lever.
Der Danfoss-Mausmaki (Microcebus danfossi) ist eine auf Madagaskar lebende Primatenart aus der Gruppe der Lemuren. Er wurde 2006 beschrieben und ist nach dem Industriekonzern Danfoss benannt.
Danfoss-Mausmakis zählen zu den größeren Vertretern der Mausmakis. Sie erreichen eine Kopfrumpflänge von 10 bis 13 Zentimetern, der Schwanz misst zusätzlich 15 bis 17 Zentimeter. Ihr Gewicht beträgt 51 bis 75 (durchschnittlich 63) Gramm. Ihr Fell ist am Rücken und am Schwanz orangebraun gefärbt, die Unterseite ist weiß oder hellgrau. Der Kopf weist große Augen und Ohren auf und kann entweder rötlich oder grau gefärbt sein, wie bei anderen Mausmakis ist ein weißer Nasenstreif vorhanden.
Danfoss-Mausmakis sind nur aus einem kleinen Gebiet im nordwestlichen Madagaskar bekannt. Vermutlich bilden die Flüsse Sofia und Maevarano die Grenzen ihres Verbreitungsgebietes. Ihr Lebensraum sind trockene Laubwälder.
Über die Lebensweise dieser neuentdeckten Art ist noch wenig bekannt, möglicherweise stimmt sie mit der anderer Mausmakis aus den Trockenwäldern Madagaskars überein. Demzufolge sind sie nachtaktive Baumbewohner, die möglicherweise während der Trockenzeit in einen Torpor (Starrezustand) fallen.
Auch über den Gefährdungsgrad ist wenig bekannt. Die IUCN listet die Art unter „zuwenig Daten vorhanden“ (data deficient).
Das Angebot der Namenspatenschaft mittels BIOPAT wurde durch die Tierärztliche Hochschule Hannover an die Firma Danfoss herangetragen, weil sie im Bereich Wärmetechnik ihre Produkte bereits seit Jahren mit Tieren bewirbt, darunter auch schon einem Mausmaki. Mit den Geldern wird der Schutz dieser Primaten und ihre weitere Erforschung gefördert.[1]
Der Danfoss-Mausmaki (Microcebus danfossi) ist eine auf Madagaskar lebende Primatenart aus der Gruppe der Lemuren. Er wurde 2006 beschrieben und ist nach dem Industriekonzern Danfoss benannt.
Danfoss's mouse lemur (Microcebus danfossi), or the Ambarijeby mouse lemur, is a species of mouse lemur endemic to Madagascar. It lives in western deciduous forest within a limited range between the Sofia River and the Maevarano River.[4] This species has been found in substantial populations in the Ambarijevy, Anjajavy, and Beanamaolo forests in Madagascar.[5] Their lifespan is about 5 years but can live up to 10 years. They are part of the infra order called lemuriformes which represents 20% of the entire primates diversity and over 60% of the mammalian genera of Madagascar.[6]
There is no current estimate of the number of individuals present in the wild, nor in captivity. However the IUCN red list provides the number of 2.2 to 5 individuals per hectares as the species density and that its population is decreasing.[1]
Their average individual home range from 50 to 400 ha (120 to 990 acres) of dry deciduous forests elevated up to 780 m (2,560 ft).[1] Their habitat can be separated into sixteen forest fragments.[1] They tend to take shelter in tree holes where they spend most of their days to preserve their energy.[7]
Dry deciduous forests are poor in resources which limits the species' diet, yet mouse lemurs in general have a quite diverse diet including insect secretions, arthropods, small vertebrates, fruits and flowers.[8] Danfoss’ mouse lemur is said to be particularly fond of bananas as it is often the food of choice in captures for research projects.[9]
Microcebus danfossi belongs to the genus of the smallest primates on the planet. However, compared to the other species from the same genus, it is a relatively large. It is a reddish mouse lemur with a total length of 25 to 29 cm (9.8 to 11.4 in), including a 15 to 17 cm (5.9 to 6.7 in) tail.[4] The Danfoss' mouse lemur has short, dense fur, and a white stripe running between the eyes.[10] The species has the overall same physical characteristics as other species of mouse lemurs but they all present high levels of genetic diversity.[9] Their metabolism functions in a certain way that enables them to save energy and water by changing their body temperature to ambient levels.[7]
Their reproduction period can be quite long from may to October, even sometimes November and depends less on seasons than other lemur species since their habitat is near a humid, low-altitude forest with more resources available to them.[11] They share the same reproduction schedule as others such as M. ravelobensis and M. bongolavensis.[11] Their reproduction generally starts around 1 years old and gestate for a bout 60 days.[7] Most females give birth every year, creating a new generation of Danfoss's mouse lemur approximately every 1 to 5 years.[7]
Microcebus danfossi is a nocturnal solitary forager that lives in dispersed social organisations, even though they often create regular sleeping groups composed by either only related females, related males and females, or alone.[12] In fact, most females only interact with related females meaning from the same sleeping group.[7] They tend to avoid encounters with females from neighboring groups.[7] Considering their behavior in the broad sense of the word, it is relatively similar to other Microcebus species in the north western regions when it comes to conflict and aggression (M. myoxinus, M. ravelobensis, M. bongolavensis).[7] However, it seems that male sleeping groups show less social tolerance even if most sleeping groups are female dominant.[12] The danfoss’ mouse lemur communicates by sound and odors to form these groups, more specifically use feces and urine to mark their presence.[13]
The weaning period lasts around several weeks and is provided by the mother even though some males were observed grooming, carrying and guarding.[7] The limited weaning period gives little time for infants to socialize.[7] In order for the mother to eat and feed its infant(s) they adopt the system called infant parking.[13] It consists in leaving the infant(s) in their nest, tree hole, while the mother is gone foraging.[13]
Their main predators are raptors (owls, hawks, eagles), snakes (boas) and carnivores (mongooses and fossa) as well as introduced carnivores (dogs and cats).[7] In fact predation rates concerning mouse lemurs are the highest amongst all primates mostly due to their small size and limited number of other mammal preys of approximately the same size.[7] Nevertheless, the species’ main threat today is human induced. Indeed, an estimation states that 90% of Madagascar’s primary vegetation has already been lost.[9] This includes the dry deciduous forest, the only habitat for Danfoss’s mouse lemur.[9] The important loss of habitat is mostly due to agriculture and pasture.[9] Furthermore, the species is also hunted for the exotic pet trade even though the deforestation is the main issue.[1]
Human activity especially agriculture is the main responsible for loss of habitat which created fragmented forested. They present an important issue in the conservation of the species because it isolates them in small groups creating a bottleneck effect which causes significant reduction of genetic diversity since they can only reproduce within a small number of individuals.[9] Their population collapse is estimated to have started about 100 to 85 years ago and represents the disappearance of around 11 thousand individuals.[9] The Bayes Factor analyses demonstrates a correlation between the appearance of bottlenecks and the two most recent periods of human colonization.[9]
According to the IUCN, the species is currently considered vulnerable since 2018 but was considered endangered in 2014.[1] It is complicated for organizations to put in place conservation plans for this species because of its limited access and the lack of information they have on it.[14] However, the IUCN is quite clear on the critical condition of the species. It states that if no conservation measures are put in place they predict the entire loss of the Danfoss’s mouse lemur habitat in 2080 by only considering climate change. [1]Without any adapted habitat, the species is unlikely going to survive much longer after.[1] Considering their current status and the rate at which the species is decreasing, it is predicted to be extinct before, given that their main threat is human activity and not climate change. Today, most organizations agree that the current measures are not sufficient. Amongst them are international legislation and international management and trade controls. In addition, only one fragmented forest, Bora, is part of the National Network of protected areas.[1]
Danfoss's mouse lemur (Microcebus danfossi), or the Ambarijeby mouse lemur, is a species of mouse lemur endemic to Madagascar. It lives in western deciduous forest within a limited range between the Sofia River and the Maevarano River. This species has been found in substantial populations in the Ambarijevy, Anjajavy, and Beanamaolo forests in Madagascar. Their lifespan is about 5 years but can live up to 10 years. They are part of the infra order called lemuriformes which represents 20% of the entire primates diversity and over 60% of the mammalian genera of Madagascar.
There is no current estimate of the number of individuals present in the wild, nor in captivity. However the IUCN red list provides the number of 2.2 to 5 individuals per hectares as the species density and that its population is decreasing.
El lémur ratón de Danfoss o lémur ratón de Ambarijeby (Microcebus bongovaensis) es una especie de primate estrepsirrino endémico de Madagascar.[2]
Se conoce en bosques fragmentados entre los ríos Sofía y Maevarano al noreste de Madagascar. Previo a la revisión taxonómica los lémures ratón de esta zona se consideraban lémur ratón dorado marrón (Microcebus ravelobensis).[1]
Datos: Q687598
Multimedia:
Especies: Microcebus danfossi
El lémur ratón de Danfoss o lémur ratón de Ambarijeby (Microcebus bongovaensis) es una especie de primate estrepsirrino endémico de Madagascar.
Se conoce en bosques fragmentados entre los ríos Sofía y Maevarano al noreste de Madagascar. Previo a la revisión taxonómica los lémures ratón de esta zona se consideraban lémur ratón dorado marrón (Microcebus ravelobensis).
Microcebus danfossi
Le Microcèbe d'Ambarijeby (Microcebus danfossi) ou Microcèbe de Danfoss est une espèce de microcèbes de Madagascar[2].
Microcebus danfossi
Le Microcèbe d'Ambarijeby (Microcebus danfossi) ou Microcèbe de Danfoss est une espèce de microcèbes de Madagascar.
Il microcebo di Danfoss (Microcebus danfossi Olivieri et al., 2007) è un lemure della famiglia Cheirogaleidae, endemico del Madagascar.
Misura una trentina di centimetri di lunghezza, almeno metà dei quali spettano alla coda. Il pelo è grigiastro, con sfumature arancioni attorno agli occhi: la zona ventrale è color beige. Le zampe ed il muso sono nudi e color grigio con sfumature violacee, mentre le grandi orecchie, anch'esse nude, sono giallastre. Gli occhi sono grandi, ma meno rispetto ai congeneri, e di colore marrone scuro.
È presente nel Madagascar occidentale, dove lo si trova unicamente nelle foreste decidue del territorio delimitato dai fiumi Sofia e Maevarano.
Il microcebo di Danfoss (Microcebus danfossi Olivieri et al., 2007) è un lemure della famiglia Cheirogaleidae, endemico del Madagascar.
Microcebus danfossi is een dwergmaki uit het geslacht der muismaki's (Microcebus) die voorkomt op Madagaskar tussen de rivieren Sofia en Maefarano, in de provincie Mahajanga. Net als de meeste muismaki's is deze soort pas in de 21e eeuw op basis van genetische methodes beschreven en is hij ook vrijwel alleen genetisch van andere soorten te onderscheiden. De soort is naar het bedrijf Danfoss genoemd als dank voor zijn steun aan natuurbehoud op Madagaskar. M. danfossi is een grote, roodachtige muismaki met een korte vacht. De bovenkant van de kop is vaak grijsachtig. De onderkant van het lichaam is vuilwit, net als de nauwelijks behaarde handen en voeten.
Microcebus danfossi is een dwergmaki uit het geslacht der muismaki's (Microcebus) die voorkomt op Madagaskar tussen de rivieren Sofia en Maefarano, in de provincie Mahajanga. Net als de meeste muismaki's is deze soort pas in de 21e eeuw op basis van genetische methodes beschreven en is hij ook vrijwel alleen genetisch van andere soorten te onderscheiden. De soort is naar het bedrijf Danfoss genoemd als dank voor zijn steun aan natuurbehoud op Madagaskar. M. danfossi is een grote, roodachtige muismaki met een korte vacht. De bovenkant van de kop is vaak grijsachtig. De onderkant van het lichaam is vuilwit, net als de nauwelijks behaarde handen en voeten.
Lêmure-rato-de-Danfoss (Microcebus danfossi) é uma espécie de lêmure pertencente à família Cheirogaleidae recentemente descoberto em Madagascar.[1]
Lêmure-rato-de-Danfoss (Microcebus danfossi) é uma espécie de lêmure pertencente à família Cheirogaleidae recentemente descoberto em Madagascar.
Microcebus danfossi är en primat i släktet musmakier som först beskrevs av Olivieri et al. 2007. Tidigare antogs att populationen ingick i Microcebus ravelobensis.[1] Artepitet danfossi i det vetenskapliga namnet syftar på det danska företaget Danfoss som gav pengar åt forskningsprojektet.[2]
Arten förekommer i en mindre region (cirka 2 100 km²) på nordvästra Madagaskar. Den lever i skogar i låglandet och i områden som ligger 780 meter över havet.[1]
Microcebus danfossi hotas av skogsavverkningar och jakt. Mellan skogarna i artens utbredningsområde finns större öppna ytor vad som försämrar artens möjlighet att fortplanta sig. IUCN listar arten som starkt hotad (EN).[1]
Microcebus danfossi är en primat i släktet musmakier som först beskrevs av Olivieri et al. 2007. Tidigare antogs att populationen ingick i Microcebus ravelobensis. Artepitet danfossi i det vetenskapliga namnet syftar på det danska företaget Danfoss som gav pengar åt forskningsprojektet.
Arten förekommer i en mindre region (cirka 2 100 km²) på nordvästra Madagaskar. Den lever i skogar i låglandet och i områden som ligger 780 meter över havet.
Microcebus danfossi hotas av skogsavverkningar och jakt. Mellan skogarna i artens utbredningsområde finns större öppna ytor vad som försämrar artens möjlighet att fortplanta sig. IUCN listar arten som starkt hotad (EN).
Це відносно великий вид з загальною довжиною від 25 до 29 сантиметрів, у тому числі від 15 до 17 сантиметрів хвіст. Вага становить від 51 до 75 (в середньому 63) грамів. Хутро пофарбоване в помаранчевий коричневий колір на спині і хвості, нижня сторона біла або світло-сіра. Голова має великі очі і вуха, і може бути як червона так і сіра; біла носова смуга присутня.
Відомий лише з шести лісових фрагментів між річками Софія і Маеварано на північному заході Мадагаскару. Житель неушкоджених та деградованих сухих лісових фрагментів від рівня моря до 780 м.
Мало що відомо про звички виду, однак, як інші види Microcebus, ймовірно, вони ведуть нічний і деревний спосіб життя, може впасти під час сухого сезону в заціпеніння (жорстке стан).
Цей вид знаходиться під загрозою втрати місця існування і деградації від нестійких методів ведення сільського господарства, лісозаготівлі та полювання. Як відомо, зустрічаються в англ. Bora Special Reserve, Anjiamangirana Classified Forests, Andalirano Classified Forests. Тим не менше, вважається, що буде мати мало шансів для виживання виду в довгостроковій перспективі без додаткових заходів щодо збереження.
Microcebus danfossi Olivieri et al. 2006
Синонимы
Microcebus danfossi (лат.) — вид мышиных лемуров. Назван в честь датской компании Danfoss, спонсирующие исследования в области приматологии.[1]
Длина тела вместе с хвостом составляет около 27 см, вес от 30 до 60 грамм, что делает этих животных одними из самых маленьких приматов. Шерсть на спине коричневато-оранжевая, брюхо кремово-белое, между глаз полоса белой шерсти.[2][1]
Населяют сухие листопадные леса между реками Суфиа (англ. Sofia River) и Мэварано (англ. Maevarano) на северо-западе Мадагаскара. До описания этого вида мышиные лемуры из этого района включались в состав вида Microcebus ravelobensis.[2]
Microcebus danfossi (лат.) — вид мышиных лемуров. Назван в честь датской компании Danfoss, спонсирующие исследования в области приматологии.
댄포스쥐여우원숭이(Microcebus danfossi)는 마다가스카르에 사는 쥐여우원숭이의 일종이다.[2] 소피아 강과 매바라노 강 사이의 제한된 지역 내의 서부 낙엽성 숲에서 발견된다.[3] 비교적 큰 붉은 쥐여우원숭이로, 꼬리를 포함한 전체 몸 길이는 25~29cm이고, 꼬리 길이는 15 ~ 17 cm이다.[3].
