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Jonah's Mouse Lemur
''Microcebus jonahi'', or Jonah's mouse lemur, is tiny species of primate. It weighs 60 g and has a body length of around 13 cm and its tail measures around 13 cm as well. It is the 25th recognized species of mouse lemur and the 108th recognized species of lemur. Description Jonah's mouse lemur has small ears and the characteristic huge eyes of lemurs with a distinct white stripe between the eyes. It has short, dense fur with a white with slightly yellowish belly and a brownish back. It weighs 60 g and has a body length of around 13 cm and its tail measures around 13 cm as well. Distribution Jonah's mouse lemur lives in northeastern Madagascar, including within the protected Mananara National Park. The species was named after Malagasy primatologist Dr. Jonah Ratsimbazafy. Conservation status The forested area in the region where the Jonah's mouse lemur is found is undergoing massive deforestation. In northeast Madagascar, forest cover declined from ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Primate
Primates are a diverse order of mammals. They are divided into the strepsirrhines, which include the lemurs, galagos, and lorisids, and the haplorhines, which include the tarsiers and the simians (monkeys and apes, the latter including humans). Primates arose 85–55 million years ago first from small terrestrial mammals, which adapted to living in the trees of tropical forests: many primate characteristics represent adaptations to life in this challenging environment, including large brains, visual acuity, color vision, a shoulder girdle allowing a large degree of movement in the shoulder joint, and dextrous hands. Primates range in size from Madame Berthe's mouse lemur, which weighs , to the eastern gorilla, weighing over . There are 376–524 species of living primates, depending on which classification is used. New primate species continue to be discovered: over 25 species were described in the 2000s, 36 in the 2010s, and three in the 2020s. Primates have large bra ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mouse Lemur
The mouse lemurs are nocturnal lemurs of the genus ''Microcebus''. Like all lemurs, mouse lemurs are native to Madagascar. Mouse lemurs have a combined head, body and tail length of less than , making them the smallest primates (the smallest species being Madame Berthe's mouse lemur); however, their weight fluctuates in response to daylight duration. Lemurs and mouse lemurs were announced by the IUCN as the most endangered of all vertebrates. There were two known mouse lemur species in 1992; by 2016, there were 24. It was estimated that the 24 mouse lemur species evolved from a common ancestor 10 million years ago. Evolution of mouse lemurs is an example for adaptive radiation. Mouse lemurs are omnivorous; their diets are diverse and include insect secretions, arthropods, small vertebrates, gum, fruit, flowers, nectar, and also leaves and buds depending on the season. Mouse lemurs are considered Species complex, cryptic species—with very little morphological differences betwee ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lemur
Lemurs ( ) (from Latin ''lemures'' – ghosts or spirits) are Strepsirrhini, wet-nosed primates of the Superfamily (biology), superfamily Lemuroidea (), divided into 8 Family (biology), families and consisting of 15 genera and around 100 existing species. They are endemic to the island of Madagascar. Most existing lemurs are small, have a pointed snout, large eyes, and a long tail. They arboreal, chiefly live in trees and nocturnal, are active at night. Lemurs share resemblance with other primates, but evolved independently from monkeys and apes. Due to Madagascar's highly seasonal climate, Evolution of lemurs, lemur evolution has produced a level of species diversity rivaling that of any other primate group. Until shortly after humans arrived on the island around 2,000 years ago, there were lemurs as large as a male gorilla. Most species have been discovered or promoted to full species status since the 1990s; however, lemur Taxonomy (biology), taxonomic classification is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Madagascar
Madagascar (; mg, Madagasikara, ), officially the Republic of Madagascar ( mg, Repoblikan'i Madagasikara, links=no, ; french: République de Madagascar), is an island country in the Indian Ocean, approximately off the coast of East Africa across the Mozambique Channel. At Madagascar is the world's List of island countries, second-largest island country, after Indonesia. The nation is home to around 30 million inhabitants and consists of the island of Geography of Madagascar, Madagascar (the List of islands by area, fourth-largest island in the world), along with numerous smaller peripheral islands. Following the prehistoric breakup of the supercontinent Gondwana, Madagascar split from the Indian subcontinent around 90 million years ago, allowing native plants and animals to evolve in relative isolation. Consequently, Madagascar is a biodiversity hotspot; over 90% of wildlife of Madagascar, its wildlife is endemic. Human settlement of Madagascar occurred during or befo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mananara National Park
Mananara Nord National Park is a national park near Mananara Nord in the Analanjirofo Region of Madagascar. The closest city is Toamasina. It also includes a marine park of 1000 ha near the village Sahasoa, with 3 islands, 3.5 km off Sahasoa: Nosy Antafana, Nosy Hely and Nosy Rangontsy. On Nosy Antafana there is a campground near the springs. Particular species: *''Dypsis antanambensis'', an endemic, threatened palm tree. *''Voanioala gerardii'', a rare coconut *''Allocebus trichotis The hairy-eared dwarf lemur (''Allocebus trichotis''), or hairy-eared mouse lemur, is one of the most scarcely known lemurs. ''A. trichotis'' is a nocturnal lemur that is endemic to Madagascar. It was originally named by Albert Günther in 1875 a ...'', a lemur only found near Mananara Nord river. References {{National parks of Madagascar Analanjirofo National parks of Madagascar Madagascar lowland forests Important Bird Areas of Madagascar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jonah Ratsimbazafy
Jonah Ratsimbazafy is a Malagasy primatologist. In 2020, he was appointed President of the International Primatological Society. Life and research Ratsimbazafy received his PhD from the State University of New York at Stony Brook in Physical Anthropology in 2002, and afterwards became Training and Conservation Coordinator for Durrell Wildlife Conservation Trust in Madagascar. He has published over 170 papers and supervised over 65 students, including 20 PhD students. His main field of study is lemur ecology and conservation. Ratsimbazafy is Co-founder and President of the Madagascar Primate Study and Research Group (GERP), Houston Zoo's Director of Madagascar Programs, and Regional Vice-Chair of the IUCN SSC Primate Specialist Group for Madagascar. He is also one of the advisors of the Lemur Conservation Network and sits on the administrative board of SADABE, an NGO. In 2020, Ratsimbazafy was elected President of the International Primatological Society for a four-year term ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Deforestation
Deforestation or forest clearance is the removal of a forest or stand of trees from land that is then converted to non-forest use. Deforestation can involve conversion of forest land to farms, ranches, or urban use. The most concentrated deforestation occurs in tropical rainforests. About 31% of Earth's land surface is covered by forests at present. This is one-third less than the forest cover before the expansion of agriculture, a half of that loss occurring in the last century. Between 15 million to 18 million hectares of forest, an area the size of Bangladesh, are destroyed every year. On average 2,400 trees are cut down each minute. The Food and Agriculture Organization of the United Nations defines deforestation as the conversion of forest to other land uses (regardless of whether it is human-induced). "Deforestation" and "forest area net change" are not the same: the latter is the sum of all forest losses (deforestation) and all forest gains (forest expansion) in a gi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rainforest
Rainforests are characterized by a closed and continuous tree canopy, moisture-dependent vegetation, the presence of epiphytes and lianas and the absence of wildfire. Rainforest can be classified as tropical rainforest or temperate rainforest, but other types have been described. Estimates vary from 40% to 75% of all biotic species being indigenous to the rainforests. There may be many millions of species of plants, insects and microorganisms still undiscovered in tropical rainforests. Tropical rainforests have been called the "jewels of the Earth" and the " world's largest pharmacy", because over one quarter of natural medicines have been discovered there. Rainforests as well as endemic rainforest species are rapidly disappearing due to deforestation, the resulting habitat loss and pollution of the atmosphere. Definition Rainforest are characterized by a closed and continuous tree canopy, high humidity, the presence of moisture-dependent vegetation, a moist layer of lea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Food
Food is any substance consumed by an organism for nutritional support. Food is usually of plant, animal, or fungal origin, and contains essential nutrients, such as carbohydrates, fats, proteins, vitamins, or minerals. The substance is ingested by an organism and assimilated by the organism's cells to provide energy, maintain life, or stimulate growth. Different species of animals have different feeding behaviours that satisfy the needs of their unique metabolisms, often evolved to fill a specific ecological niche within specific geographical contexts. Omnivorous humans are highly adaptable and have adapted to obtain food in many different ecosystems. The majority of the food energy required is supplied by the industrial food industry, which produces food with intensive agriculture and distributes it through complex food processing and food distribution systems. This system of conventional agriculture relies heavily on fossil fuels, which means that the food and agricu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Genetic Diversity
Genetic diversity is the total number of genetic characteristics in the genetic makeup of a species, it ranges widely from the number of species to differences within species and can be attributed to the span of survival for a species. It is distinguished from ''genetic variability'', which describes the tendency of genetic characteristics to vary. Genetic diversity serves as a way for populations to adapt to changing environments. With more variation, it is more likely that some individuals in a population will possess variations of alleles that are suited for the environment. Those individuals are more likely to survive to produce offspring bearing that allele. The population will continue for more generations because of the success of these individuals. The academic field of population genetics includes several hypotheses and theories regarding genetic diversity. The neutral theory of evolution proposes that diversity is the result of the accumulation of neutral substitutions ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Primates Described In The 2020s
This is a list of primates described in the 2020s. As primates are a well-studied group, species that are unknown to science are rare. However, recent advances in DNA sequencing have allowed scientists to compare populations and test for distinct lineages in extant species. This list includes species that have been discovered, formally described, or brought to public light in the year 2020 or later. New primate species are recorded by the International Union for Conservation of Nature Species Survival Commission (IUCN/SSC) Primate Specialist Group, an organisation chaired by primatologist Russell Mittermeier and deputy chaired by Anthony Rylands. In the previous ten years 36 primates were described. 2020 Jonah's mouse lemur (''Microcebus jonahi'') A species of mouse lemur from northeastern Madagascar described by . DNA sequencing confirmed its species status and it was named after Malagasy primatologist Jonah Ratsimbazafy. Morphological differences to its closest relative, Ma ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mammals Described In 2020
Mammals () are a group of vertebrate animals constituting the class Mammalia (), characterized by the presence of mammary glands which in females produce milk for feeding (nursing) their young, a neocortex (a region of the brain), fur or hair, and three middle ear bones. These characteristics distinguish them from reptiles (including birds) from which they diverged in the Carboniferous, over 300 million years ago. Around 6,400 extant species of mammals have been described divided into 29 orders. The largest orders, in terms of number of species, are the rodents, bats, and Eulipotyphla ( hedgehogs, moles, shrews, and others). The next three are the Primates (including humans, apes, monkeys, and others), the Artiodactyla (cetaceans and even-toed ungulates), and the Carnivora ( cats, dogs, seals, and others). In terms of cladistics, which reflects evolutionary history, mammals are the only living members of the Synapsida (synapsids); this clade, together with Saur ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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