方法采用夹日法、食饵法。
本文研究了一类三种群离散型捕食者食饵系统。
In this paper, a class of predator-prey systems of three species with discrete time is studied.
建立天敌胁迫下食饵种群动态模型的参数估计方法。
The paper gave the way to estimate parameter of the prey population dynamical model under natural enemy.
喂食时，把食饵放在竹片上，一口一口地送进雏鸟口里。
When fed to prey on the bamboo, on a one to slip into chicks mouth.
虽然还能暂时生存一段时间，但不久就会因食饵困难而死亡。
Although still a temporary existence for some time but it soon died because of predator problems.
第二章对一类捕食-食饵模型解的分歧和稳定性进行了讨论。
In chapter 2, the local bifurcation and stability of positive steady-state solutins for a class of predator-prey model are investigated.
几乎是同时，有三只贪吃的松鸡，连虫带钩地把食饵吞了下去。
Three voracious grouse swallowed at the same moment bait and hook.
方法改进盗食法使用有编号的食饵盒，并按操作规程进行测试。
Methods Improving bait steal gauging used baiting boxes with serial number, and testing according to the operating rules.
其他措施包括拖曳系有彩色飘带的饵绳以阻止鸟类俯冲啄食饵料。
Other measures include trailing aerial streamer lines to discourage birds from diving for trailing bait.
方法目测法、鼠迹调查法、粉片法、掘开洞数法、饱和食饵消耗法。
Methods Visualization, investigation of mouse trace, using powder, Numbers of digged holes, saturated bait consuming.
研究一类具有年龄结构的捕食-食饵种群动力系统的最优收获策略。
We investigate optimal policy for a predator-prey system with age-dependent.
调查中用鼠笼加食饵诱捕小兽宿主，用全捕法采集其体表的全部吸虱。
The hosts were captured by traps. The sucking lice on the body surface of small mammals were all collected.
研究了一类捕食者-食饵模型的平衡态系统在第三边界条件下正解的存在性。
The existence of positive solutions of the steady-state system is studied for a kind of predator-prey model under the third boundary conditions.
本文研究了一类三种群周期食饵系统，并给出了其存在平稳振荡的充分条件。
The following three species periodic predator-prey system is considered, the sufficient condition for the existence of a globally and asymptotically stable periodic solution of the system is obtained.
研究了一类捕食-食饵模型，其中捕食者的密度干扰项的系数与食饵密度有关。
The predator-prey model whose predator's density interference term's coefficient is related with prey is investigated.
本文研究捕食—食饵系统(1)极限环的存在唯一性，得到了文中的定理1、2、3。
In this paper, we studied the existence and uniqueness of limit cycle or the predator-prey system (l), and obtained theorems 1, 2, 3.
研究了一类具有时滞的基于比率型三种群捕食者-食饵系统，给出了系统持续生存的条件。
A three-species ratio-dependent predator-prey model with time delays is investigated, conditions are given for persistence of the system.
目的观察隔日禁食结合耐饥食饵对小鼠生理生化指标的影响，探讨其安全性与健康维护优势。
Objective: To observe the physiological and biochemical effects of intermittent fasting combined with hunger-resistant food on mice, and to evaluate the safety and beneficial effects of this regimen.
本文讨论一类具有脉冲效应和周期系数的两个食饵一个捕食者的捕食-食饵系统的动力学行为。
In this paper, a classical periodic two prey and a predator predator-prey system with impulsive effect is investigated.
利用重合度理论建立了一类周期中立型时滞捕食者-食饵系统正周期解的全局存在性的充分条件。
Sufficient conditions are obtained for the global existence of a positive periodic solution of periodic neutral delay predator-prey system by using the method of coincidence degree theory.
这个结果导致捕食食饵系统的持久性、平凡解和所有半平凡解的不稳定性和不存在非一致平衡解。
The result leads to the permanence of the prey-predator systems, the instability of the trivial and all forms of semitrivial solutions, and the nonexistence of nonuniform steady-state solutions.
主要得到以下结论：1。建立了一类疾病在捕食者中传播且具有标准传染率的强身型捕食。食饵模型。
We obtain the following main results. 1. A strengthen type predator-prey model of predator with disease and standard incidence is formulated and analyzed.
研究了一类具有生物和化学控制（周期释放天敌和喷洒杀虫剂）的两食饵-两捕食者模型的动力学性质。
In this paper, the method of Hidden Periodic Model was used to study the parameters estimation in two species predator-prey model.
结果：中华沙棘果汁可降低动物模型的成石率，并可促进胆汁酸的合成与分泌，保护肝细胞免受致石食饵的损伤。
Results:Chinese hippophae juice could decrease the rate of stone formation, promote synthesis and secretion of bile acid and protect liver cell from damages of stone forming bait.
第二章以季风、河流流向等自然条件和生物生活习性为背景，建立食饵单向扩散的捕食-被捕食系统的常微分模型。
In the second part, a predator-prey model of ordinary differential with one-way diffusion is studied considering the monsoon, river flows, other natural conditions and living habits as background.
在这篇文章中，我们提出并分析了一个具有捕食者，食饵和既有周期脉冲输入又有周期脉冲输出营养液的恒化器模型。
In this paper, we present and analyze a simple model for a chemostat with predator, prey and periodically pulsed input and washout substrate.
讨论了一类捕食者-食饵系统的参数在某个范围变化时在非零不动点处产生霍普夫分叉的情况，并对其稳定性进行了分析。
This paper discusses the state of Hopf bifurcation in a predator-prey system when parameter varies in some field, and analyzes the stability of the system.
构造了一个具有阶段结构的捕食—食饵模型，并研究了庇护所效应对于该系统平衡点的稳定性、平衡密度及其种群长期续存的影响。
This paper studied the effect of prey refuges on the stage-structured predator-prey model with two life stages-immature and mature, and with a mature prey using refuges.
随着‘噗’的一声，整个蝠鲼群都会出现，届时你将会看见在不到4个小时时间内，一块足球场大小的范围内出现200多条蝠鲼食饵的场景。
Then poof, a whole group will move in, and you'll get as many as 200 feeding for two to four hours in a bay no bigger than a soccer field.
随着‘噗’的一声，整个蝠鲼群都会出现，届时你将会看见在不到4个小时时间内，一块足球场大小的范围内出现200多条蝠鲼食饵的场景。
Then poof, a whole group will move in, and you'll get as many as 200 feeding for two to four hours in a bay no bigger than a soccer field.
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