Predator-prey models ; Functional response ; Constant rate stocking ; Limit cycle

1模型與平衡點(diǎn)分析考慮捕食者無密度制約黄色视频免费观看网页，食餌具有非線性功能反應(yīng)函數(shù)

Their large, funnel-shaped ears can easily detect the rustling sounds of prey.

他們的漏斗形的大耳朵可以很容易地察覺到獵物的沙沙地聲音。

P4 Antarctica is home to many seal species such as this fur seal. Its large eyes are designed to seek out prey in dim waters and are a slightly different shape to a land mammal's.

P4视频国产欧美视频XX，南極是許多種海豹的棲息之地色www，就像這只毛皮海豹，它的大眼睛是用來在黑暗的海水中追尋獵物的把女人弄爽A片特黄大片在线观看，與陸地哺乳動(dòng)物的眼睛形狀稍有不同中文字幕视频。

5 My grandfather told me that it was a clever game bird in its heyday.its nipping paw and subtil observation are unexampled.it was trained by hunter since it is young .to teach it how to discover the prey quickly and report the position of it.

爺爺告訴我，當(dāng)它還年輕力壯的時(shí)候亚洲欧美性视频，可是一只機(jī)靈過人的小獵鳥国产a在无码线精品，他鋒利爪子和敏銳的觀察力可是無鳥能及的。獵人從小就訓(xùn)練他人人色人人插人人操，怎樣敏捷的發(fā)現(xiàn)獵物影视先锋资源av无码专区，怎樣準(zhǔn)確報(bào)告獵物的位置。

The northern gannet spends most of its life at sea, plunging into the water for prey.

北方塘鵝一生的大部時(shí)間在海里黄片al区一区二，為的是跳進(jìn)水里捕食自拍日韩精品视频在线播放。

Tigers can kill prey animals much larger than. themselves - Tigers weighing 100-250 kg regularly kill 900 kg Gaur. In the wild. Tigers may eat up to 40 kg of meat at a time.

老虎能夠捕殺比自己大的多的獵物——一只100到250公斤的老虎可以捕殺900公斤的野牛，在野外日韩黄片点结进入，虎一次可吃掉多達(dá)40公斤肉欧洲美女色黄A片,视频。

In the last chapter,by means of coincidence degree theory,we consider the existence of positive periodic solution for a generalized discrete prey-predator system with delay and functional responses.

在解的優(yōu)先估計(jì)過程之中，運(yùn)用了分析的方法99在线视频精品，從而使得條件的驗(yàn)證更具可行性伊人91无码在线。

The first chapter discusses the showness of geometric figure and equilibrium\'s asymptotically stable of mathematical model of predator-prey.

第一章利用分析技巧和霍維茨定理研究了捕食與被捕食種群的循環(huán)Hassall數(shù)學(xué)模型幾何圖形表達(dá)和平衡點(diǎn)的漸近穩(wěn)定性問題。

Nay, she had even witnessed in the home circle deeds of violence caused by intemperance and had seen her own father, a prey to the fumes of intoxication, forget himself completely for if there was one thing of all things that Gerty knew it was that the man who lifts his hand to a woman save in the way of kindness, deserves to be branded as the lowest of the low.

豈止是這樣泰国一级牲交片，她甚至在家里目擊到酗酒引起的暴行天天舔天天日天天射，看到她的親爹撒酒瘋，完全失了常態(tài)国产91视频福利。格蒂比什么都知道得清楚的是：凡是并非為了幫助女人而對(duì)女人動(dòng)手的男子91精品自在拍精选久久，理應(yīng)都被打上最卑鄙者的烙印。

At the end of the yolk-sac stage the yolk and oil globule have been used up and the major organ and sensory systems required to capture prey are functional.

在發(fā)育的這一個(gè)階段結(jié)束時(shí)狠狠干狠狠操狠狠爽，卵黃與油球會(huì)耗盡免费看的黄色视频，主要的器官與知覺系統(tǒng)已具捕獲且消化獵物的功能，原始的胸鰭也已出現(xiàn)九九热线国产精品视频6。