| 单词 | systematist |
| 例句 | Fortunately, “it’s actually not that hard to simulate a mass extinction,” said Emily Sessa, a plant systematist at the New York Botanical Garden in the Bronx. The biggest extinction event in the planet’s history is happening again — in Santa Cruz 2023-05-31T04:00:00Z Which of the following is the best explanation of what systematists do? Biology for AP Courses 2022-06-09T00:00:00Z Because distantly related groups can sometimes lose a character, systematists are cautious about using the absence of a trait as a character in their analyses. Miller & Levine Biology 2018-01-01T00:00:00Z “It’s just staggering,” says Andrea Lucky, an ant systematist at the University of Florida, who was not involved with the work, but who now advises the author of the paper. Thief ants steal—and eat—the young of other ants, decimating their populations 2020-05-15T04:00:00Z That strategy, and the EBP’s overall concept, found a receptive audience at BioGenomics2017, a gathering this week of conservationists, evolutionary biologists, systematists, and other biologists interested in applying genomics to their work. Biologists propose to sequence the DNA of all life on Earth 2017-02-24T05:00:00Z Palaeontologists eventually agreed that Brontosaurus is properly called Apatosaurus, under taxonomic rules drafted by the eighteenth-century Swedish systematist Carl Linnaeus and still in use today. Beloved Brontosaurus makes a comeback 2015-04-06T04:00:00Z The collections are overseen by a dwindling corps of managers and curators — mainly taxonomists who describe species, and systematists who study the relationship between organisms. Museums: The endangered dead 2015-02-17T05:00:00Z The systematist by such study will be saved from the narrow and hair-splitting tendencies which study of slight difference of characters tends to, while to the economic entomologist it is most essential. Directions for Collecting and Preserving Insects 2012-03-28T02:00:31.483Z The affinity of the Trochilidae and Cypselidae once pointed out, became obvious to every careful and unprejudiced investigator, and there are probably few systematists now living who refuse to admit its validity. Encyclopaedia Britannica, 11th Edition, Volume 13, Slice 8 "Hudson River" to "Hurstmonceaux" 2012-02-24T03:00:27.173Z There is always a great deal of interest attaching to organisms which are unique in character and which systematists find difficulty in placing in any of their schemes of classification. Scientific American Supplement, No. 648, June 2, 1888. 2011-12-26T03:00:15.410Z Its position has been variously assigned by systematists. Encyclopaedia Britannica, 11th Edition, Volume 12, Slice 2 "Gloss" to "Gordon, Charles George" 2011-10-31T02:00:28.703Z Even though the physiological distinction be allowed to count for something in otherwise doubtful cases, no systematist would constitute a species on such grounds alone. Darwin, and After Darwin, Volume 2 Post-Darwinian Questions: Heredity and Utility 2011-10-16T02:00:14.153Z There are two schools of systematists, those who assert that one specimen and one only must be the type of a species, and those who are willing to accept several specimens as types. Freshwater Sponges, Hydroids & Polyzoa 2011-06-25T02:00:17.833Z But for the systematist the difficulty is by the establishment of this group only doubled. The Gospel Of Evolution From "The Atheistic Platform", Twelve Lectures 2011-05-31T02:00:36.420Z To many systematists the thought of being able to identify to genus only breeding males is sufficiently disturbing to cause them to view with disfavor the recognition of the genus. A Review of the Middle American Tree Frogs of the Genus Ptychohyla 2011-02-28T03:00:32.093Z Now the creature that lay stretched out before the eyes of Hendrik was just one of these zoological puzzles, that has occupied the attention of the systematists for a long while. The Young Yagers A Narrative of Hunting Adventures in Southern Africa 2010-12-20T17:11:52.020Z First of all it must be remarked that, as species have actually been constituted by systematists, the test of exclusive fertility does not apply. Darwin, and After Darwin, Volume 2 Post-Darwinian Questions: Heredity and Utility 2011-10-16T02:00:14.153Z They who think otherwise forget that the generic and specific characters of the systematist, necessarily condensed, are very inadequate to convey any other than the most superficial knowledge of the diversified objects of nature. Lives of Eminent Zoologists, from Aristotle to Linnæus with Introductory remarks on the Study of Natural History Linnaeus in the warmth of zeal for the great Caesalpino had pronounced him "first in the order of time among real systematists." The Popes and Science The History of the Papal Relations to Science During the Middle Ages and Down to Our Own Time At present, however, they are placed, except by a few systematists, in quite distinct families of the Hymenoptera. Wild Bees, Wasps and Ants and Other Stinging Insects So, although the classes, orders, genera, etc., are natural, or as natural as the systematist can make them, their grouping or order of arrangement in a book, must necessarily be in great measure artificial. The Elements of Botany For Beginners and For Schools Hence we see that, just as Mr. Gulick could have created good species by secretly destroying his intermediate varieties, so has Nature produced her "good species" for the delectation of systematists. Darwin, and After Darwin, Volume 2 Post-Darwinian Questions: Heredity and Utility 2011-10-16T02:00:14.153Z By most of the older systematists they were placed as forming part of the heterogeneous order Neuroptera. Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 6 "Dodwell" to "Drama" Though by former systematists placed near or even among the herons, there is no doubt that the cranes have only a superficial resemblance and no real affinity to the Ardeidae. Encyclopaedia Britannica, 11th Edition, Volume 7, Slice 6 "Coucy-le-Château" to "Crocodile" A systematist who would fit the living body of the law to his logical analytical scheme must proceed after the manner of Procrustes. An Introduction to the Philosophy of Law But he was something more than a mere systematist. Garden and Forest Weekly, Volume 1 No. 1, February 29, 1888 Moreover it is acknowledged that systematists differ among themselves to a wide extent as to the kinds and degrees of peculiarity which entitle a given form to a specific rank. Darwin, and After Darwin, Volume 2 Post-Darwinian Questions: Heredity and Utility 2011-10-16T02:00:14.153Z For some years these have provided a fruitful source of discussion to systematists. Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 5 "Clervaux" to "Cockade" It is well known that systematists make use of characters that are constant for groups of species, but which do not appear in themselves to have an adaptive significance. A Critique of the Theory of Evolution It is not unlikely that most of the various characters which the systematist uses to mark off one species from another, the so-called specific characters, are of this nature. Mendelism Third Edition They are, according to the systematists, the same type, and yet they behave so differently. Our Bird Comrades There is nothing that divides systematists more than what constitutes a genus. Darwin, and After Darwin, Volume 2 Post-Darwinian Questions: Heredity and Utility 2011-10-16T02:00:14.153Z It would be impossible for any one but a systematist with the birds in hand to determine where the intermediate forms become either typical easterners or typical westerners. Birds of the Rockies If a systematist were asked whether these new races of Drosophila are comparable to wild species, he would not hesitate for a moment. A Critique of the Theory of Evolution The visible attributes are those made use of by the systematist in cataloguing the different forms of animal and plant life, for he has no other choice. Mendelism Third Edition Up to this time the true significance of the luxuriance and diversity of larval forms had never seriously engaged the attention of systematists in entomology. Our Common Insects A Popular Account of the Insects of Our Fields, Forests, Gardens and Houses As a matter of fact, I have dealt far too leniently with the peccadillos of the ornithological systematist. Birds of the Indian Hills It is thus that morphologists have been enabled to frame types or standards of reference, and systematists to collocate the organisms they deal with into groups. Vegetable Teratology An Account of the Principal Deviations from the Usual Construction of Plants These the systematists have divided into no less than eighteen genera! The Young Voyageurs Boy Hunters in the North The power of the exclusionists lies in that in their stand are combined both modern and archaic systematists. The Book of the Damned To the systematist who concerns himself with the classification of the myriads of different insects now living, it is a relief to find that all can be reduced to the comparatively simple forms sketched above. Our Common Insects A Popular Account of the Insects of Our Fields, Forests, Gardens and Houses Whenever a systematist comes across an Asiatic bird of which he can make nothing, he classes it among the Crateropodidæ. Birds of the Indian Hills The speculating systematists—who decide about genera and species, by some slight protuberance upon a tooth—have already created a wonderful confusion in the family of the goats. The Cliff Climbers A Sequel to "The Plant Hunters" Of this group Lamarck was facile princeps, as he combined great sagacity and experience as a systematist with rare intellectual and philosophic traits. Lamarck, the Founder of Evolution His Life and Work The method of the systematists is slightingly to give a few instances of the unholy, and dispose of the few. The Book of the Damned This group is a most interesting one to the systematist, as it is composed of so many heterogeneous forms which it is almost impossible to classify in our rigid and at present necessarily artificial systems. Our Common Insects A Popular Account of the Insects of Our Fields, Forests, Gardens and Houses This is convenient for the systematist, but embarrassing for the naturalist. Birds of the Indian Hills He was the first systematist to occupy himself in a philosophical manner with the problems of general biology. Form and Function A Contribution to the History of Animal Morphology It passed through two editions, and still is not without value to the working systematist. Lamarck, the Founder of Evolution His Life and Work Buzzards are found over the whole world with the exception of the Australian region, and have been split into many genera by systematists. Encyclopaedia Britannica, 11th Edition, Volume 4, Part 4 "Bulgaria" to "Calgary" Perhaps some ingenious systematists might hence deduce a fresh argument in favour of the alleged oriental origin of the Irish. Blackwood's Edinburgh Magazine — Volume 55, No. 341, March, 1844 The German systematist, A. W. Eichler, attempted to remove this disadvantage which since the time of Jussieu had characterized the French system, and in 1883 grouped the Dicotyledons in two subclasses. Encyclopaedia Britannica, 11th Edition, Volume 2, Part 1, Slice 1 Lamarck's affinity with the transcendentalists was in many ways a close one, but he differed essentially in being before all a systematist. Form and Function A Contribution to the History of Animal Morphology But Lamarck’s method and point of view were of a new order—he was much more than a mere systematist. Lamarck, the Founder of Evolution His Life and Work Africa is the chief stronghold of the family, nearly a score of well-marked species being peculiar to that continent, all of which have been by later systematists separated from the genus Otis. Encyclopaedia Britannica, 11th Edition, Volume 4, Part 4 "Bulgaria" to "Calgary" It is not to be forgotten however that all taxonomic distinctions, which have not been confirmed by physiologic tests are only provisional, a view acknowledged by the best systematists. Species and Varieties, Their Origin by Mutation The actual boundaries between animals and plants are artificial; they are rather due to the ingenious analysis of the systematist than actually resident in objective nature. Encyclopaedia Britannica, 11th Edition, Volume 2, Part 1, Slice 1 As a systematist of vast experience Lamarck knew how difficult it is in practice to distinguish species from varieties. Form and Function A Contribution to the History of Animal Morphology He knew, as Malesherbes claimed, little about the works even of Linné and other systematists, neither grasping their principles nor apparently caring to know their methods. Lamarck, the Founder of Evolution His Life and Work We are not convinced of this Often where it has appeared to be so, advancing discovery has brought intermediate forms to light, perplexing to the systematist. Darwiniana; Essays and Reviews Pertaining to Darwinism Other distinguishing marks are not recorded by the systematists, or are not so sharply separated as to allow of the corresponding qualities of the hybrids being compared with them. Species and Varieties, Their Origin by Mutation Once the Oriental pink weigelias, grown in nearly every American garden, were thought to belong to the Diervilla clan, from which later-day systematists have banished them. Wild Flowers An Aid to Knowledge of Our Wild Flowers and Their Insect Visitors It would be an interesting study to compare Cuvier's views on variation with those of Darwin, who was essentially a systematist. Form and Function A Contribution to the History of Animal Morphology How capitally you turn the flanks of the theological opposers by opposing to them such men as Bentham and the more philosophical of the systematists! Life and Letters of Charles Darwin — Volume 2 Systematic work would be easy were it not for this confounded variation, which, however, is pleasant to me as a speculatist, though odious to me as a systematist. Life and Letters of Charles Darwin — Volume 1 Unfortunately many of the better systematists are in the habit of throwing all these interesting forms together, and of omitting their descriptive study. Species and Varieties, Their Origin by Mutation These two wintergreens, formerly counted mere varieties of the white-flowered rotundifolia, a lover of dry woods, have now been given specific individuality by later-day systematists. Wild Flowers An Aid to Knowledge of Our Wild Flowers and Their Insect Visitors I believe it has been unconsciously used; and thus only can I understand the several rules and guides which have been followed by our best systematists. The Origin of Species by means of Natural Selection, 6th Edition For that purpose a sharp and subtle systematist, like Aristotle, was the very man whom they required; and from the destruction of Alexandria may date the rise of the Aristotelian philosophy. Alexandria and Her Schools; four lectures delivered at the Philosophical Institution, Edinburgh The systematic species are the practical units of the systematists and florists, and all friends of wild nature should do their utmost to preserve them as Linnaeus has proposed them. Species and Varieties, Their Origin by Mutation With many prominent systematists it has become a test between species and varieties, and from our present point of view this assumption is correct. Species and Varieties, Their Origin by Mutation Many species of ferns afford instances of this rule, and Lindley and other great systematists have frequently been puzzled by the wide range of differences between the individuals of a single species. Species and Varieties, Their Origin by Mutation Miquel, who was one of the best systematists of tropical plants, of the last century, described a large number of them, and since, more have been added. Species and Varieties, Their Origin by Mutation This principle has always been recognized by systematists. Species and Varieties, Their Origin by Mutation Every systematist is free to delimit them in a wider or in a narrower sense, according to his judgment. Species and Varieties, Their Origin by Mutation Among the systematists who tested plants in this way, Nageli especially, directed his attention to the hawkweeds or Hieracium. Species and Varieties, Their Origin by Mutation The ablest systematists prefer to consider the ordinary species as collective groups, calling their constituents "The elements of the species," as was done by A.P. Species and Varieties, Their Origin by Mutation |
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