種群滅絕 的英文怎麼說
中文拼音 [zhǒngqúnmièjué]
種群滅絕
英文
population die-off-
This dependency between fossil and living types is well illustrated when we deal with extinct groups.
化石與現存類型之間的這種依賴關系在我們研究絕滅類群時是十分明顯的。This note studies two - species metapopulations dynamics com mon model considering of the affect of interspecific interaction to colonization and extinction rate and rescue effect, demostrates the conditions of two specie s capable of coexistence in the competitor, predator - prey or mutualist system
在考慮種間相互作用對定居率和絕滅率的影響以及逃避效應的基礎上建立了兩物種相互作用的異質種群動態的一般模型，通過模型分析說明了競爭、捕食和互惠共生系統中兩物種能夠共存的條件Any species that is not in the climax community is doomed to local extinction and is a fugitive species to a greater or lesser degree.
在不處于頂極狀態的群落中的任何一個種，不是註定就地絕滅，就是成為一種在一定程度上的逃亡者。As green turtles invariably return to their natal beach to nest, any development and human activities that will change the natural environment of the nesting site andor cause obstructions to their migratory route would wipe out the local population
由於綠海龜擁有洄遊到其出生地產卵的天性，任何改變其產卵地自然環境或阻礙其洄遊路線的發展及活動，都有可能令到本地的種群滅絕。According to the theory of differential inequality and the comparision theorem, we will establish some new and more practical criteria of the extinction, uniform persistence and globally asymptotical stability for partial species of the above system. since the narrate of the main theorem is long, we omit it. to see section 2 of chapter 3 for details
通過利用微分不等式理論，比較定理及構造適當的lyapunov函數，得到了判別種群持續生存、滅絕和全局漸近穩定性的三個定理，這便是第三章的主要內容，由於定理較長，這里不作敘述，詳見第三章第二節。The rate of extinction is higher than reclonizition, which indicates the decline of population. ( 2 ) chilasa epycides : univoltine
種群在斑塊內處于滅絕、再定居的動態過程，滅絕率大於再定植率，即種群處于下降趨勢。All great ape species risk extinction, either in the immediate future or at best within 50 years, because of the growing destruction of forests, poaching, the live - animal trade and the encroachment of humans on their habitat, the conference organizers said
會議的組織者們說，由於森林被不斷地破壞，以及偷獵買賣活體動物和人類對其棲息地的侵犯，整個大型類人猿的種群都有滅絕的危險，有的就近在眼前最長在50年內也會滅絕。It is necessary for a species " adaptation and evolutionary potential to keep genetic variety at a relative level. genetic diversity in the population must not be lost furthermore and gene exchange among individuals should be enhanced as much as possible to avoid extinction of crested ibis
一定程度的遺傳變異性是維持種群的適應力與進化潛力的必要條件，為使朱?免於滅絕的厄運，必須避免其種群遺傳多樣性的進一步喪失，並盡可能增加個體間的基因交流，最大限度地避免近親繁殖。In a view of history, it is a catastrophe for life form when meteorites impacted the earth, people even think the impacts were involved in the extinguishments of mass species ( for example the extinguishments of dinosaur ) in life form history
從歷史的角度來看，隕石群撞擊地球對地球生物來說是災難性的，人們甚至認為生物發展史上的大規模的物種滅絕（如恐龍的滅絕）與此有關。We were so robbed by that man who stands there, as all we common dogs are by those superior beings - taxed by him without mercy, obliged to work for him without pay, obliged to grind our corn at his mill, obliged to feed scores of his tame birds on our wretched crops, and forbidden for our lives to keep a single tame bird of our own, pillaged and plundered to that degree that when we chanced to have a bit of meat, we ate it in fear, with the door barred and the shutters closed, that his people should not see it and take it from us - i say, we were so robbed, and hunted, and were made so poor, that our father
站在那邊的那個傢伙，他搶奪我們，逼我們交苛捐雜稅，逼我們給他們做事不給報酬，逼我們到他的磨坊磨面。他的雞鴨鵝大群大群地吃我們少得可憐的莊稼，卻一隻雞鴨都不準我們喂養。他把我們搶得乾乾凈凈，我們若是有了一小片肉，只好閂上門，閉上窗，提心吊膽地吃，怕被他的人看見拿走一我說，我們給搶得逼得颳得太苦了，我爸爸對我們說生孩子很可怕，我們最應當祈禱的就是讓我們的婦女不要生育，讓我們悲慘的種族滅絕！Under proper conser '. ation, the metapopulation of lilium tsingauense will not disappear in short term
倘若加以合理保護，短時間內青島百合復合種群無滅絕趨勢。Small populations will fluctuate enormously because of the random nature of birth and death and these chance fluctuations can cause species extinctions even if, on average, the population size should increase
一些種群數量將會有巨大的起伏因為無常的大自然中的生和死，並且這些偶然的起伏將導致物種滅絕，即使平均起來，種群數量還是增長的。The most robust koala population on the australian mainland exists in southeast queensland and numbers about 10, 000, but it too faces extinction in 15 years, said tabarat
澳洲大陸上樹袋熊種群最興旺的地區是昆士蘭州東南部，有大約一萬只，但塔拉巴特說，這里的樹袋熊也將在十五年內瀕臨滅絕。In the study of species dynamics, the permanence of the species is one of the most interesting problems. in recent years, people have destroyed the enviorment, which leads to some biologies distinction. in some documents on the permanence of the species, there are two ways which can be used to save the distincting species. one is human ' s interference, the other is species " adjust ion
在許多研究種群持續生存的文獻中，關于如何挽救面臨滅絕的種群，有兩種途徑得以實現：一是通過人為干預，放養或捕獲，使其持續生存；一是通過種群間的自然調節，遷移它的生存環境，使其持續生存。We only required that r2 ( t ) is nonnegative and loosen the requests of the functions r1 ( t ) and r ( t ). we will get some new criteria of the uniform persistence, extinction and attractivity for the above system. since the narrate of the main theorem is long, we omit it
本文用一種新的方法，在僅僅要求r _ 2 （ t ）非負的條件下，放寬了對r _ 1 （ t ） ， r _ 3 （ t ）的要求，得到了它的種群一致持久、滅絕和全局漸近穩定的新的判別準則。In complementary case, sufficient conditions for uniform persistence and extinction of the population are obtained by the theory of uniform persistence of infinite dimensional dynamical systems. especially for the model with equal diffusion coefficients and zero death rates, the global attractivity of the unique positive steady - state solution is proved. in substitutable case, sufficient conditions for uniform persistence and extinction of population are also ob
首先考慮了具有互補營養的擴散模型，得到了該系統中種群絕滅和一致持續生存的充分條件；並對營養和種群具有相同的擴散系數和種群零死亡率的模型，證明了該系統存在唯一的正平衡解，並證明了該平衡解的全局吸引性。分享友人