| 单词 | sympatric |
| 例句 | One form of sympatric speciation can begin with a chromosomal error during meiosis or the formation of a hybrid individual with too many chromosomes. Concepts of Biology 2013-04-25T00:00:00Z One form of sympatric speciation begins with a serious chromosomal error during cell division. Biology for AP Courses 2022-06-09T00:00:00Z “This study is one of surprisingly few that compellingly document sympatric speciation caught in the act” in vertebrates, says Martha Muñoz, an evolutionary biologist at Yale University who was not involved with the work. Tiny differences in plumage and song have split two nearly identical birds into different species 2021-03-25T04:00:00Z The focus on neighboring dinosaurs - or what experts call sympatric species - is a critical part of the test. The Latest in Horned Dinosaur Fashion 2018-04-14T04:00:00Z Exactly what this grand, evolving mess means for the distribution and health of hornbill populations, and for sympatric plants and animals, is neither simple nor clear. The Splendid and Remarkable Anatomy of Hornbills 2014-04-22T12:30:38Z One leads to allopatric speciation, whereas the other leads to sympatric speciation. Concepts of Biology 2013-04-25T00:00:00Z Researchers have found hundreds of sympatric speciation events in these fish, which have not only happened in great number, but also over a short period of time. Biology for AP Courses 2022-06-09T00:00:00Z But other researchers say the research appears to show how sympatric speciation happens—and in this case, happened so quickly. Tiny differences in plumage and song have split two nearly identical birds into different species 2021-03-25T04:00:00Z Significant cascading trophic interactions, mediated by their prey or sympatric mesopredators, arise when some of these carnivores are extirpated from or repatriated to ecosystems. [Review] Status and Ecological Effects of the World’s Largest Carnivores 2014-01-09T18:56:08.068Z Seen the other way round, the argument here is that a diverse array of exaggerated structures in sympatric species indicates the role of such structures in species recognition among those respective animals. Dinosaurs and their exaggerated structures : species recognition aids, or sexual display devices? 2013-04-22T01:15:00.783Z Finally, a well-documented example of ongoing sympatric speciation occurred in the apple maggot fly, Rhagoletis pomonella, which arose as an isolated population sometime after the introduction of the apple into North America. Concepts of Biology 2013-04-25T00:00:00Z The process of speciation within the same space is called sympatric speciation; the prefix “sym” means same, so “sympatric” means “same homeland” in contrast to “allopatric” meaning “other homeland.” Biology for AP Courses 2022-06-09T00:00:00Z Several – certainly not all –azhdarchid-bearing localities preserve evidence of two or even three sympatric species. A new azhdarchid pterosaur: the view from Europe becomes ever more interesting 2013-01-31T14:15:08.667Z What's more, he says ecologists could find many more examples of sympatric speciation by studying the numerous localities around the world with similarly sharp ecological boundaries. Blind Mole Rats Show Evolution in Action 2013-01-28T20:00:00Z So, we have to think in terms of sympatric speciation when considering the species recognition hypothesis. Dinosaurs and their exaggerated structures : species recognition aids, or sexual display devices? 2013-04-22T01:15:00.783Z It seems likely that host specificity of parasites in general is a common cause of sympatric speciation. Concepts of Biology 2013-04-25T00:00:00Z A number of mechanisms for sympatric speciation have been proposed and studied. Biology for AP Courses 2022-06-09T00:00:00Z Some geological units reveal evidence of two or even three sympatric azhdarchid species. A new azhdarchid pterosaur: the view from Europe becomes ever more interesting 2013-01-31T14:15:08.667Z That said, Gavrilets agrees with Nevo that sharp ecological boundaries may be "especially promising" locations to search for examples of sympatric speciation -- examples that could settle the controversy about how common the process really is. Blind Mole Rats Show Evolution in Action 2013-01-28T20:00:00Z Thirdly, sympatric dinosaurs species are not always obviously distinct in term of the morphology of their exaggerated structures, as they should be if species recognition was the key function of those structures. Dinosaurs and their exaggerated structures : species recognition aids, or sexual display devices? 2013-04-22T01:15:00.783Z Two species of fish had recently undergone sympatric speciation. Concepts of Biology 2013-04-25T00:00:00Z If this group of fish continued to remain separate from the first population, eventually sympatric speciation might occur as more genetic differences accumulated between them. Biology for AP Courses 2022-06-09T00:00:00Z This made it superior to the biological species concept in dealing with asexual and hybridized sympatric clusters that maintained their identities. Species Concepts 2012-04-20T14:15:03.823Z Exactly how often this so-called sympatric speciation occurs in nature remains a topic of hot debate. Blind Mole Rats Show Evolution in Action 2013-01-28T20:00:00Z He runs a hunting business on the side, Hotel Rancho Acosta Alamos, and is very knowledgeable about quail and where we should look for sympatric sites, mentioning two of his ranches. Scientist at Work Blog: Two Quail Species in the Brush 2012-01-10T22:38:58Z Re�xamination of specimens from northern Chiapas and Tabasco is needed to verify the sympatric occurrence of these two similar species. A Distributional Study of the Amphibians of the Isthmus of Tehuantepec, Mexico 2011-12-31T03:00:17.400Z One such place is Lake Victoria in Africa, famous for its sympatric speciation of cichlid fish. Biology for AP Courses 2022-06-09T00:00:00Z Cases of sympatric existence of two subspecies of one species are known in birds and in reptiles. Speciation of the Wandering Shrew 2011-12-22T03:00:30.143Z In west-central M�xico, where the two species are sympatric, B. taylori is smaller than elsewhere and B. musculus is larger than elsewhere. Speciation and Evolution of the Pygmy Mice, Genus Baiomys 2011-12-15T03:00:11.933Z After getting the nets and traps ready for the morning, we leave and drive 45 minutes north to the other ranch, where the quail are sympatric. Scientist at Work Blog: Two Quail Species in the Brush 2012-01-10T22:38:58Z From its upland distribution the species followed streams down to both the Caribbean and Pacific lowlands, where it is sympatric with S. puma on the Caribbean lowlands and S. sila on the Pacific lowlands. Neotropical Hylid Frogs, Genus Smilisca 2011-10-24T02:00:14.853Z Genetic variation influences sympatric speciation, but not allopatric speciation. Biology for AP Courses 2022-06-09T00:00:00Z Much larger and more reddish than the sympatric S. v. vagrans. Speciation of the Wandering Shrew 2011-12-22T03:00:30.143Z In both species of Baiomys, the most distinct subspecies, B. t. allex and B. m. musculus, occur in the area where the two species are sympatric. Speciation and Evolution of the Pygmy Mice, Genus Baiomys 2011-12-15T03:00:11.933Z The sympatric occurrence of morphologically similar species in this genus has led me to adopt a conservative approach to the degree of difference philosophy. A Taxonomic Revision of the Leptodactylid Frog Genus Syrrhophus Cope 2011-10-23T02:00:22.253Z In summarizing this discussion of the breeding calls of Smilisca we want to point out what seem to be important differences in the calls that may prevent interspecific hybridization in sympatric species of Smilisca. Neotropical Hylid Frogs, Genus Smilisca 2011-10-24T02:00:14.853Z One form of sympatric speciation can begin with a serious chromosomal error during cell division. Biology for AP Courses 2022-06-09T00:00:00Z The sympatric existence of the terminal subspecies of the Sorex vagrans rassenkreis is made possible by marked differences between them in size and in ecological preference. Speciation of the Wandering Shrew 2011-12-22T03:00:30.143Z Skull.—Difference in occipitonasal length and zygomatic breadth, both having low coefficients of variation, are useful in separating species, especially where they are sympatric. Speciation and Evolution of the Pygmy Mice, Genus Baiomys 2011-12-15T03:00:11.933Z Our work in Amazonian Ecuador resulted in the discovery of the sympatric occurrence of three species at each of two localities; one of these species was found with a fourth species at another locality. A Synopsis of Neotropical Hylid Frogs, Genus Osteocephalus 2011-10-04T02:00:15.227Z Regardless of their respective breeding habits, sympatric species have calls that differ notably. Neotropical Hylid Frogs, Genus Smilisca 2011-10-24T02:00:14.853Z It is a special kind of sympatric speciation. Biology for AP Courses 2022-06-09T00:00:00Z The continual humid conditions and abundance of insect food throughout the year in the cloud forest are perhaps indicative of little interspecific competition among adults of Ptychohyla and other sympatric hylids. A Review of the Middle American Tree Frogs of the Genus Ptychohyla 2011-02-28T03:00:32.093Z Southern pygmy mice at high altitudes average larger than those from low elevations, except where the two species are sympatric. Speciation and Evolution of the Pygmy Mice, Genus Baiomys 2011-12-15T03:00:11.933Z Perhaps pale-colored and dark-colored populations of R. mexicanus are sympatric but ecologically segregated in this region. Records of Harvest Mice, Reithrodontomys, from Central America, with Description of a New Subspecies from Nicaragua We postulate that these differences evolved to support the reproductive isolation of the sympatric species. Neotropical Hylid Frogs, Genus Smilisca 2011-10-24T02:00:14.853Z Today, sympatric species have different breeding habits and breeding calls which reinforce the differences in morphology. Neotropical Hylid Frogs, Genus Smilisca 2011-10-24T02:00:14.853Z No two species in the same group are sympatric, but members of different groups are sympatric in at least parts of their ranges. A Review of the Middle American Tree Frogs of the Genus Ptychohyla 2011-02-28T03:00:32.093Z It is noteworthy that the smallest subspecies, B. t. allex, occurs in the area where the two species are sympatric. Speciation and Evolution of the Pygmy Mice, Genus Baiomys 2011-12-15T03:00:11.933Z The data indicate that the calls of related sympatric species differ more than the calls of related allopatric species. Neotropical Hylid Frogs, Genus Smilisca 2011-10-24T02:00:14.853Z We have not found tadpoles of two species of Smilisca in the same body of water and therefore cannot offer observations on ecological relationships in sympatric situations. Neotropical Hylid Frogs, Genus Smilisca 2011-10-24T02:00:14.853Z |
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