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Hoary Bat
The hoary bat (''Lasiurus cinereus'') is a species of bat in the vesper bat family, Vespertilionidae. It lives throughout most of North America (possibly including Hawaii, although this is disputed). Taxonomy The hoary bat was described as a new species in 1796 by Palisot de Beauvois. Beauvois noted that the holotype was collected in the US state of Pennsylvania by an individual identified as "Master Pancake". It has many taxonomic synonyms, including ''Vespertilio pruinosis'' (Say, 1823) and ''Atalpha mexicana'' ( Saussure, 1861). Mammalogist Harrison Allen was the first to use its current name combination of ''Lasiurus cinereus'', doing so in 1864. In a later publication, Allen placed it in the now-defunct genus ''Atalapha'', with a scientific name of ''Atalpha cinerea''. The South American hoary bat (''L. villosissimus''), which is found throughout South America, and the Hawaiian hoary bat (''L. semotus''), which is endemic to Hawaii, were both previously classified under ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hawaiian Hoary Bat
The Hawaiian hoary bat (''Lasiurus semotus''), also known as ''ōpeapea'', is a species of bat endemic to the islands of Hawaii. Whereas the mainland hoary bat (''L. cinereus'') is found throughout North America, the Hawaiian hoary bat is distributed only among the major volcanic islands of Hawaii, making it the only extant and native terrestrial mammal in the state; although some studies also posit that the mainland hoary bat lives in sympatry on the Hawaiian Islands alongside the Hawaiian hoary bat, this has been disputed. The Hawaiian hoary bat was officially named the state land mammal of Hawaii in 2015. It is a federally listed endangered taxon of the United States. Like many species of bats, Hawaiian hoary bats are brown in color. However they are distinguished by the silver coloration that ‘frosts’ the fur on their back, ears, and neck. They typically weigh between 14 to 18 g (0.49 to 0.63 ounces), and have a wingspan of about 10.5 to 13.5 inches, with females being la ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Palisot De Beauvois
Ambroise Marie François Joseph Palisot, Baron de Beauvois (27 July 1752, in Arras – 21 January 1820, in Paris) was a French naturalist and zoologist. Palisot collected insects in Oware, Benin, Saint Domingue, and the United States, from 1786 to 1797. Trained as a botanist, Palisot published a significant entomological paper entitled, "Insectes Receuillis en Afrique et en Amerique". Together with Frederick Valentine Melsheimer, he was one of the first entomologists to collect and describe American insects. He described many common insects and suggested an ordinal classification of insects. He described many Scarabaeidae as well as illustrating them for the first time. The study included 39 '' Scarabaeus'' species, 17 ''Copris'' species, 7 '' Trox'' species, 4 '' Cetonia'' and 4 '' Trichius'' species. Familiar beetles such as '' Canthon viridis'', '' Macrodactylus angustatus'' and '' Osmoderma scabra'' were first described by him. Many of the specimens that were labelled from ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sympatry
In biology, two related species or populations are considered sympatric when they exist in the same geographic area and thus frequently encounter one another. An initially interbreeding population that splits into two or more distinct species sharing a common range exemplifies sympatric speciation. Such speciation may be a product of reproductive isolation – which prevents hybrid offspring from being viable or able to reproduce, thereby reducing gene flow – that results in genetic divergence. Sympatric speciation may, but need not, arise through secondary contact, which refers to speciation or divergence in allopatry followed by range expansions leading to an area of sympatry. Sympatric species or taxa in secondary contact may or may not interbreed. Types of populations Four main types of population pairs exist in nature. Sympatric populations (or species) contrast with parapatric populations, which contact one another in adjacent but not shared ranges and do n ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bats Of North America
Bats are mammals of the order Chiroptera.''cheir'', "hand" and πτερόν''pteron'', "wing". With their forelimbs adapted as wings, they are the only mammals capable of true and sustained flight. Bats are more agile in flight than most birds, flying with their very long spread-out digits covered with a thin membrane or patagium. The smallest bat, and arguably the smallest extant mammal, is Kitti's hog-nosed bat, which is in length, across the wings and in mass. The largest bats are the flying foxes, with the giant golden-crowned flying fox, ''Acerodon jubatus'', reaching a weight of and having a wingspan of . The second largest order of mammals after rodents, bats comprise about 20% of all classified mammal species worldwide, with over 1,400 species. These were traditionally divided into two suborders: the largely fruit-eating megabats, and the echolocating microbats. But more recent evidence has supported dividing the order into Yinpterochiroptera and Yangochiro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lasiurini
Lasiurini is a tribe of bats in the family Vespertilionidae. It contains three genera of bats found in the Americas. All three genera were previously considered one genus, ''Lasiurus'', but have since been split from one another. However, the validity of this split is still debated. Species Species in the tribe include: * Genus '' Aeorestes'' – hoary bats ** Hoary bat, ''Aeorestes cinereus'' ** Big red bat, ''Aeorestes egregius'' ** Hawaiian hoary bat, ''Aeorestes semotus'' ** South American hoary bat, ''Aeorestes villosissimus'' * Genus '' Dasypterus'' – yellow bats ** Southern yellow bat, ''Dasypterus ega'' ** Cuban yellow bat, ''Dasypterus insularis'' ** Northern yellow bat, ''Dasypterus intermedius'' ** Western yellow bat, ''Dasypterus xanthinus'' * Genus ''Lasiurus'' – red or hairy-tailed bats ** Arequipa red bat, ''Lasiurus arequipae'' ** Greater red bat, ''Lasiurus atratus'' ** Southern red bat, ''Lasiurus blossevillii'' ** Eastern red bat, ''Lasiurus boreal ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bats Of The United States
Most of the many bat species found in the United States are insectivorous except for three flower eating species that migrate from Mexico and one that inhabits the Florida Keys. __TOC__ Species Bats belong to the biological order of Chiroptera. The bat families found in North America are Vespertilionidae, Molossidae, Mormoopidae and Phyllostomidae. Molossidae *Florida bonneted bat ''Eumops floridanus'' *Wagner's bonneted bat ''Eumops glaucinis'' *Western mastiff bat ''Eumops perotis'' * Underwood's bonneted bat ''Eumops underwoodi'' *Velvety free-tailed bat ''Molossus molossus'' *Pocketed free-tailed bat ''Nyctinomops femorosaccus'' *Big free-tailed bat ''Nyctinomops macrotis'' *Mexican free-tailed bat ''Tadarida brasiliensis'' Mormoopidae *Ghost-faced bat ''Mormoops megalophylla'' Phyllostomidae *Jamaican fruit bat ''Artibeus jamaicensis'' (Florida Keys only) * Mexican long-tongued bat ''Choeronycteris mexicana'' *Mexican long-nosed bat ''Leptonycteris nivalis'' *Calif ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bats Of Canada
There are eighteen indigenous species of bats in Canada, which are found in many parts of the country. They are insectivores, and are prey to falcons, hawks, owls, snakes, cats, and raccoons.Health Canada Species The little brown bat is the most common and widely distributed of Canada's bat species, Baily: 1997. Page 3 more prevalent in Eastern Canada than in Western Canada or Northern Canada. The nocturnal bat roosts in dark places during the day, and preys on insects at night. Their echolocation calls are emitted 20 times per second, increasing to 200 times per second while chasing prey. The habitat range of the big brown bat is in the southern parts of Quebec, Ontario, Manitoba, Saskatchewan, and British Columbia, and throughout Alberta. Males are solitary, whereas females "gather in maternity colonies in the spring and summer", consisting of up to 75 adults with their offspring. Smithsonian: Big Brown Bat They forage at night on dry, warm evenings, catching and eating flyi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wind Turbine
A wind turbine is a device that converts the kinetic energy of wind into electrical energy. Hundreds of thousands of large turbines, in installations known as wind farms, now generate over 650 gigawatts of power, with 60 GW added each year. Wind turbines are an increasingly important source of intermittent renewable energy, and are used in many countries to lower energy costs and reduce reliance on fossil fuels. One study claimed that, wind had the "lowest relative greenhouse gas emissions, the least water consumption demands and the most favorable social impacts" compared to photovoltaic, hydro, geothermal, coal and gas energy sources. Smaller wind turbines are used for applications such as battery charging for auxiliary power for boats or caravans, and to power traffic warning signs. Larger turbines can contribute to a domestic power supply while selling unused power back to the utility supplier via the electrical grid. Wind turbines are manufactured in a wide ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mammalian Embryonic Diapause
Embryonic diapause (from late 19th century English: dia- ‘through’ + pause- 'delay') (aka delayed implantation in mammals) is an evolutionary reproductive strategy used by several animal species across a number of kingdoms, including approximately 130 different mammals, which takes place in order to ensure the survival of offspring. The process occurs at the blastocyst stage of embryo development in most species, and is characterized by a dramatic reduction or complete cessation of mitotic activity, arresting most often in the G0 or G1 phase of division. In placental embryonic diapause, the embryonic blastocyst does not immediately implant in the uterus after sexual reproduction has created the zygote, but rather remains in this non-dividing state of dormancy until conditions allow for attachment to the uterine wall to proceed as normal. As a result, the normal gestation period is extended for a species-specific time. Organisms which undergo embryonic diapause are able to sy ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gestation Period
In mammals, pregnancy is the period of reproduction during which a female carries one or more live offspring from implantation in the uterus through gestation. It begins when a fertilized zygote implants in the female's uterus, and ends once it leaves the uterus. Fertilization and implantation During copulation, the male inseminates the female. The spermatozoon fertilizes an ovum or various ova in the uterus or fallopian tubes, and this results in one or multiple zygotes. Sometimes, a zygote can be created by humans outside of the animal's body in the artificial process of in-vitro fertilization. After fertilization, the newly formed zygote then begins to divide through mitosis, forming an embryo, which implants in the female's endometrium. At this time, the embryo usually consists of 50 cells. Development After implantation A blastocele is a small cavity on the center of the embryo, and the developing embryonary cells will grow around it. Then, a flat layer cell f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Central America
Central America ( es, América Central or ) is a subregion of the Americas. Its boundaries are defined as bordering the United States to the north, Colombia to the south, the Caribbean Sea to the east, and the Pacific Ocean to the west. Central America consists of eight countries: Belize, Costa Rica, El Salvador, Guatemala, Honduras, Mexico, Nicaragua, and Panama. Within Central America is the Mesoamerican biodiversity hotspot, which extends from northern Guatemala to central Panama. Due to the presence of several active geologic faults and the Central America Volcanic Arc, there is a high amount of seismic activity in the region, such as volcanic eruptions and earthquakes which has resulted in death, injury, and property damage. In the pre-Columbian era, Central America was inhabited by the indigenous peoples of Mesoamerica to the north and west and the Isthmo-Colombian peoples to the south and east. Following the Spanish expedition of Christopher Columbus' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Moth
Moths are a paraphyletic group of insects that includes all members of the order Lepidoptera that are not butterflies, with moths making up the vast majority of the order. There are thought to be approximately 160,000 species of moth, many of which have yet to be described. Most species of moth are nocturnal, but there are also crepuscular and diurnal species. Differences between butterflies and moths While the butterflies form a monophyletic group, the moths, comprising the rest of the Lepidoptera, do not. Many attempts have been made to group the superfamilies of the Lepidoptera into natural groups, most of which fail because one of the two groups is not monophyletic: Microlepidoptera and Macrolepidoptera, Heterocera and Rhopalocera, Jugatae and Frenatae, Monotrysia and Ditrysia.Scoble, MJ 1995. The Lepidoptera: Form, function and diversity. Oxford, UK: Oxford University Press; 404 p. Although the rules for distinguishing moths from butterflies are not well establishe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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