山西雏蝗属二新种记述(直翅目:网翅蝗科)

记述山西省吕梁地区雏蝗属Ｃｈｏｒｔｈｉｐｐｕｓ Ｆｉｅｂｅｒ,１８５２二新种,即似鹤立雏蝗Ｃｈｏｒｔｈｉｐｐｕｓ ｆｕｓｃｉｐｅｎｎｏｉｄｅｓ Ｍａ,Ｚｈｅｎｇ ｅｔ Ｇｕｏ,ｓｐ．ｎｏｖ．和关帝山雏蝗Ｃｈｏｒｔｈｉｐｐｕｓ ｇｕａｎｄｉｓｈａｎｅｎｓｉｓ Ｍａ,Ｚｈｅｎｇ ｅｔ Ｇｕｏ,ｓｐ．ｎｏｖ．。模式标本保存于山西大学生命科学系动物标本室。     

青海省雏蝗属三新种（直翅目：网翅蝗科）

记述采自青海少网翅蝗科雏蝗属３新种,即祁连山雏蝗Ｃｈｏｒｔｈｉｐｐｕｓ ｑｉｌｉａｎｓｈａｎｅｎｓｉｓ,ｓｐ．ｎ．、积石山雏蝗Ｃｈｏｕｔｈｉｐｐｕｓ ｕｉｓｈｉｓｈａｎｅｎｓｉｓ,ｓｐ．ｎ．及循化雏蝗Ｃｈｏｒｔｈｉｐｐｕｓ ｘｕｎｈｕａｅｎｓｉｓ,ｓｐ．ｎ．。模式标本保存于陕西师范大学动物研究所。     

山西雏蝗属二新种：直翅目：网翅蝗科

本文记述山西省雁北地区雏蝗属Ｃｈｏｒｔｈｉｐｕｓ Ｆｉｅｂｅｒ１８５２二新种,即郑氏雏蝗Ｃｈｏｒｔｈｉｐｐｕｓ ｚｈｅｎｇｉ,ｓｐ．ｎｏｖ．和宽带雏蝗Ｃｈｏｒｔｈｉｐｐｕｓ ａｍｐｌｉｌｉｎｅａｔｕｓ,ｓｐ．ｎｏｖ。模式标本保存在山西省农牧厅植保植检总结。     

西北地区雏蝗属一新种记述：直翅目：蝗总科：网翅蝗科

本文记述采自青海省雏蝗属１新种：宽沟雏蝗Ｃｈｏｒｔｈｉｐｐｕｓ ｌａｔｉｓｕｌｃｕｓ,ｓｐ．ｎｏｖ。模式标本保存于陕西师范大学动物研究所。     

甘肃省雏蝗属一新种记述（蝗总科：网翅蝗科）

本文记述了雏蝗属一新种：短角雏蝗（Ｃｈｏｒｔｈｉｐｐｕｓｂｒｅｖｉｃｏｒｎｉｓｓｐ．ｎｏｖ．,采自甘肃省肃南县宝瓶河牧场。模式标本存于陕西师范大学动物研究所。     

贺兰山地区雏蝗属二新种记述(直翅目:网翅蝗科)

记述在贺兰山西侧阿拉善左旗采到的网支蝗科雏蝗二新种，即阿拉善雏蝗Ｃｈｏｒｔｈｉｐｐｕｓ ａｌｘａｅｎｓｉｓ Ｚｈｅｎｇ，ｓｐ．ｎｏｖ，及哈拉乌雏蝗Ｃｈｏｒｔｈｉｐｐｕｓ ｈａｌａｗｕｅｎｓｉｓ Ｚｈｅｎｇ，ｓｐ，ｎｏｖ．。     

湖南蝗虫三新种（直翅目：蝗总科

记述采自湖南省山区的蝗虫３新和 山卵翅蝗Ｃａｒｙａｎｄａ ｊｉｕｙｓｈａｎａ,ｓｐ．ｎｏｖ．（斑腿蝗科Ｃａｔａｎｔｏｐｉａｄａｅ卵翅蝗属Ｃａｒｙａｎｄａ ｓｔａｌ,１８７８）, Ｆｒｕｈｓｔｏｒｆｅｒｉｏｌａ ｘｕｅ ｆｅｒｎｓｈａｎａ,ｓｐ．ｖｏｎ．（斑腿蝗科Ｃａｔａｎｔｏｐｉｄａｅ腹露蝗属Ｆｒｕｈｓｔｏｒ ｆｅｒｉｏｌａＷｉｌｌｅｍｓｅ,１９９２）,大围山雏蝗Ｃｈｏｒｔｈｉｐｐｕｓ ｄａｗｅｉ     

内蒙古西部地区蝗虫的新属和新种(直翅目:蝗总科)

本文记述在内蒙古西部贺兰山及雅布赖山地区蝗总科昆虫２新属３新种,即方额蝗属Ｑｕａｄｒｉｖｅｒｔｉｃｉｓ,ｇｅｎ．ｎｏｖ．;小方额蝗Ｑｕａｄｒｉｖｅｒｔｉｃｉｓｅｌｅｇａｎｓ,ｓｐ．ｎｏｖ．;贺兰山雏蝗Ｃｈｏｒｔｈｉｐｐｕｓｈｅｌａｎｓｈａｎｅｎｓｉｓ,ｓｐ．ｎｏｖ．;小垫蝗属Ｐｕｓｉｌａｒｏｌｉｕｍ,ｇｅｎ．ｎｏｖ．及白纹小垫蝗Ｐｕｓｉｌａｒｏｌｉｕｍａｌｂｏｎｅｍｕｍ,ｓｐ．ｎｏｖ．。模式标本保存在陕西师范大学动物研究所。     

雏蝗属二新种记述（直翅目：蝗总科）

本文山西省雏蚯属Ｃｈｏｒｔｈｉｐｐｕｓ ２新种：恒山雏蚯Ｃ．ｈｅｎｇｓｈａｎｅｎｓｉｓ ｓｐ．ｎ．及太原雏蚯Ｃ．ｔａｉｙｕａｎｅｎｓｉｓ ｓｐ．ｎ．,模式标本存山西省农牧厅植保植检总站。     

山西东南地区雏蝗属三新种(直翅目：网翅蝗科)

山西东南地区雏蝗属三新种（直翅目：网翅蝗科）郑哲民,马恩波,王向荣（陕西师范大学动物研究所西安７１００６２）（山西省植物保护植物检疫总站太原０３０００１）１９９０至１９９１年在山西省东南地区进行蝗虫调查时,采到雏蝗属ＣｈｏｒｔｈｉｐｐｕｓＦｉｅｂｅｒ...     

Selection with two alleles and complete dominance

For a plant selection model with frequency-independent viabilities, fertilities and selfing rates, it is shown that apart from global fixation, for certain parameter combinations a protected polymorphism and facultative fixation (either allele may become fixed according to initial frequencies) may both occur. Facultative fixation requires different selling rates for the dominant and recessive type. Protection of the polymorphism requires resource allocation for male and female function. In this connection the problem of purely genetically caused population extinction is discussed.
For general frequency dependence and regular segregation, the chances for establishment of a completely recessive gene are compared to those of a completely dominant gene. It is proven that the process of establishment of the recessive gene, despite a fitness advantage, may be considerably endangered by drift effects if random mating prevails. The recessive gene may reach the same effectivity in establishment as a dominant gene, only if the recessive homozygote mates exclusively with its own type during the period of establishment.     

杆状病毒出芽病毒粒子膜融合蛋白的研究进展

杆状病毒是一类感染节肢动物的病原微生物,其基因组为双链环状DNA,大小为80～180kb.     

Inception of the Modern Public Health System in China and Perspectives for Effective Control of Emerging Infectious Diseases: In Commemoration of the 140th Anniversary of the Birth of the Plague Fighter Dr. Wu Lien-Teh

In this article, we systematically review Dr. Wu Lien-Teh's academic achievements and outstanding contributions in the prevention and control of the plague epidemic in northeast China and introduce the development of the earliest public health epidemic prevention system in China in order to commemorate the 140th anniversary of Dr. Wu Lien-Teh's birth. We hope that this article will provide insights into the effective prevention and control of emerging infectious diseases as well as the current worldwide pandemic of COVID-19, facilitating the improvement and development of public health systems in China and around the globe.