應(yīng)yl7703永利官網(wǎng)王賓國(guó)教授的邀請(qǐng),四川大學(xué)鄒蘭副教授將于2021年4月22日到4月23日訪問(wèn)蘭州大學(xué),期間將舉辦專題學(xué)術(shù)報(bào)告.

講座題目：Dynamics of a predator-prey system with Smith growth in prey and foraging facilitation in predators

主講人：鄒蘭副教授

時(shí)  間：2021年4月23日 星期五16:00-17:00

地  點(diǎn)：理工樓401

報(bào)告摘要：

The work was motivated by the ecosystem including the Tibetan antelope (Pantholops hodgsonii) and grey wolf (Canis lupus) in the Sanjiangyuan Natinal Park in China. We consider the Tibetan antelope with Smith growth and foraging facilitation among wolves. It is shown that there is a weak focus of multiplicity 3 and a cusp of codimension 4 for various parameter values and the system can exhibit various bifurcations as the parameter values vary, such as saddle-node, transcritical, pitchfork, Hopf and Bogdanov-Takens bifurcations. The comparative study shows that these dynamics and bifurcations are far richer than that of the system without foraging facilitation among predators or with logistic growth for prey. The analysis results reveal that more available resources and appropriate intensity of foraging facilitation are beneficial for predator population persistence and promote ecosystem diversity.

簡(jiǎn) 介

鄒蘭,四川大學(xué)數(shù)學(xué)學(xué)院副教授.2008年前往美國(guó)佛羅里達(dá)州邁阿密大學(xué)數(shù)學(xué)系作為聯(lián)合培養(yǎng)博士生跟隨阮士貴教授進(jìn)行學(xué)習(xí).2010年6月在四川大學(xué)獲理學(xué)博士學(xué)位,并留校任教.研究方向?yàn)槲⒎址匠膛c動(dòng)力系統(tǒng)、生物數(shù)學(xué).先后主持國(guó)家自然科學(xué)基金青年基金、面上基金,參與國(guó)家自然科學(xué)基金重點(diǎn)基金一項(xiàng).

甘肅省高校應(yīng)用數(shù)學(xué)與復(fù)雜系統(tǒng)省級(jí)重點(diǎn)實(shí)驗(yàn)室

yl7703永利官網(wǎng)

2021年4月21日