Tìm thấy 13+ kết quả cho từ khóa "Small mammals"
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Induction of abnormal sperm heads in small mammals under chronic ionizing radiation. Sex glands are highly sensitive to the action of deleterious factors. Registration of a large number of morphologically abnormal sperm heads indicates an increased mutation process in male germ cells, particularly an increased frequency of gene mutations and/or microdeletions in spermatogonia and first-range spermatocytes (Enciso et al., 2011).
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Abundance and edological associations of small mammals. A community of small terrestrial mammals. Changes in the catch structure of small mammals during successive days of trapping
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Across Europe, proportions of dominant prey species or genera vary considerably and mostly depend on population cycles of small mammals (Hanski et al., 1991;. Pokorný et al., 2003). In years with high abundance of small mammals Tengmalm’s owl breeds successfully, but when there are fewer rodents (particularly voles) available, the owls usually skip breeding or migrate to other areas in search of food (Korpimäki, 1992a, 1992b, 1992c). As Tengmalm’s owl in Mt.
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The canopy, the upper level of the trees in the rain forest, holds a plethora of climbing mammals of moderately large size, which may include monkeys, cats, civets, and porcupines. Small mammals, being warm blooded, suffer hardship in the exposed and turbulent environment of the uppermost trees. Thus, in the trees, where shelter from heat and cold may be scarce and conditions may fluctuate, a small mammal may have trouble maintaining its body temperature..
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The canopy, the upper level of the trees in the rain forest, holds a plethora of climbing mammals of moderately large size, which may include monkeys, cats, civets, and porcupines. Small mammals, being warm blooded, suffer hardship in the exposed and turbulent environment of the uppermost trees. Thus, in the trees, where shelter from heat and cold may be scarce and conditions may fluctuate, a small mammal may have trouble maintaining its body temperature..
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The canopy, the upper level of the trees in the rain forest, holds a plethora of climbing mammals of moderately large size, which may include monkeys, cats, civets, and porcupines. Small mammals, being warm blooded, suffer hardship in the exposed and turbulent environment of the uppermost trees. Thus, in the trees, where shelter from heat and cold may be scarce and conditions may fluctuate, a small mammal may have trouble maintaining its body temperature..
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Peculiarities of the skin lesions in small mammals parasited by Psorergates apodemi and P. Arthropods occurring on Rattus norvegicus (Berkenhout, 1769) (Rodentia: Muridae) in Poland.. The Genus Demodex, Owen.. (Acari: Demodecidae) in brown rat (Rodentia: Muridae) in Poland. New for the fauna of Poland species of Psorergates spp. Skin mites of mammals – the occurrence, significance and research prospects in Poland. Izdebska JN, Rolbiecki L (2012).
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In places where humans have heavily fragmented the landscape with roads and housing, many species of small mammals have become locally extinct, allowing populations of the human-tolerant and bacterium-harboring white-footed mouse to explode. mosquito-borne West Nile virus was first recorded in the United States and Canada in 1999. Do the benefits of interweaving human and ecological communities outweigh the costs?
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In the symphony orchestra, bass drums are not. to the reproductive rates of other small mammals, that of the bat is very low indeed.. On Ellesmere Island in the Arctic one fossil forest consists of a nearly hundred large stumps scattered on an exposed coal bed.. The surface conditions on the planet Mars are the more like the Earth‘s than are those of any other planet in the solar system..
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(mice, squirrels, rabbits = small mammals, beetles =insects, baby crows = other small birds: quạ con) 43 D Đáp án A: Đoạn 3 “The characters…………..mythological stories”. Đáp án B: Đoạn 3 “The novels, which……a detailed fantasy world ” Đáp án C: Đoạn 3 “The main plot…………..the power to rule the world.”. 47 A P1, L 1,2 “One of the most…………..from Oxford. 49 D P3, L3,4 “The novels, which are set……..called Middle Earth”
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Benson (1933) noted that in certain desert areas where extensive black lava beds exist, some species of small mammals tend to be very dark, perhaps to blend with the color of the habitat and to enhance the absorption of radi- ant energy for thermoregulation.. However, all evolutionary change results from alterations in the sequence of bases of the DNA in the nucleus of reproductive cells and, therefore, the subsequent sequence of amino acids in the proteins of offspring.
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The mink (Mustela vison) eats small mammals, fish, frogs, crayfish, insects, worms, and birds in the wild.. [5] Whether the mink shares the other unique metabolic features of the cat has not been determined.. Tarsiers (Tarsius spp.) eat insects (beetles, ants, locusts, cicadas, cockroaches, mantids, moths) and sometimes small vertebrates in the wild.
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Domestications of other small mammals such as rabbits and cavies all occurred in the last 2000 years. Domestication for feathers and meat began in the 19th century in Africa, and this species is now kept in many parts of the world. Abandoning a relationship that has been thousands of years in the making and that has been a major influence on.
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Small mammals, such as mice, rabbits, prairie dogs, ground squirrels, gophers, and others, affect the growth of forage plants without competing directly with livestock or game animals for some of the aerial parts of plants.
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Therefore, we speculate that there are approximately 830 intact OR genes from the MRCAs of the studied marine mammals and their closely related terrestrial mammals. 2a and b, most OGGs contained a small number of OR genes and pseudogenes. 1 Comparison of the number of OR genes encoded in mammalian genomes. a Class I gene proportion refers to the number of intact Class I genes divided by the total number of all intact OR genes in the species.
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B Phylogenetic ANOVA of the numbers of expanded and contracted gene families in ascrotal and scrotal mammals. C Phylogenetic ANOVA of the numbers of expanded and contracted gene families in CDT, IDT, and UDT mammals. Essential components of the gubernaculum contributed to the evolution of testicular position. 4 Specific amino acid substitutions in ascrotal mammals.
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Diversification of the insulin-like growth factor 1 gene in mammals
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A nocturnal phase (or a progressively nocturnal phase) in the early mammals would be con- cordant with the loss of the RH2, VA, PARA, PARIE and OPN4x opsins.. The RH2 photoreceptor responds to the green range of the light spectrum [12] and its loss represented a de- crease in the ability of mammals to discriminate colours..
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Camera trapping of medium and large-sized mammals in western Black Sea deciduous forests in Turkey. Kurtonur et al., 1996. Yiğit et al . Silveria et al., 2003;. Tobler et al., 2008). Despite there being many studies on Turkish mammals, information on the ecology and distribution of many of the mammal species is quite inadequate (Can and Togan, 2004. Soyumert et al., 2010. Albayrak et al., 2012.
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Several types of sRNA including plant microRNAs (miRNA), piwi-interacting RNAs (piRNA) in insects, nematodes and mammals, and small interfering RNAs (siRNA) in insects and plants contain a 2 ’ -O-methyl (2 ’ -OMe) modification at their 3 ′ terminal nucleotide. Here we compared these methods with Illumina ’ s classical TruSeq protocol regarding the detection of normal and 2 ’ OMe RNAs.