In Winesburg, Ohio, Sherwood Anderson vividly presented a group of lonely people, deformed in spirit and depressed in life, and longing for love but lack of communication. Such ＂grotesques＂ became considerable image...In Winesburg, Ohio, Sherwood Anderson vividly presented a group of lonely people, deformed in spirit and depressed in life, and longing for love but lack of communication. Such ＂grotesques＂ became considerable images in the research of American literature history. Their life reveals the social role that women play and the change of the man-woman relationship in the United States when it was in its transition to industrialism at the beginning of the 20th century. From the perspective of feminism, this paper conducts a systematical analysis on the social life, social role and family role of the female ＂grotesques＂, and tentatively talks about man-woman relationship.展开更多
Multimodal communication in solitary stinkbugs enables them to meet,mate and copulate.Many plant-dwelling species exchange information during the calling phase of mating behavior using substrate-borne vibratory signal...Multimodal communication in solitary stinkbugs enables them to meet,mate and copulate.Many plant-dwelling species exchange information during the calling phase of mating behavior using substrate-borne vibratory signals.A female-biased gender ratio induces rivalry and competition for a sexual partner.Female competition for males,first described among Heteroptera in three stinkbug species,revealed species specific differences and opened the question of plasticity in individually emitted temporal and frequency signal characteristics during calling and rival alternation.To address this question and gain an insight into the mechanisms underlying stinkbug female rivalry,we compared the characteristics of alternated signals in the southern green stinkbug Nezara viridula(Linnaeus,1758)(Hemiptera:Pentatomidae).Compared to male rivalry,female rivalry is more complex,lasts longer and runs through successive phases by a combination of different song types.The male pheromone triggers alternation between females,producing song pulses that occasionally overlap each other.One female initiates the rivalry by changing individual pulses into pulse trains of three different types.The competing female alternates with pulses of changed temporal characteristics at lower levels of rivalry and by varying the frequency characteristics of pulse trains at higher levels.During female rivalry,the male either stops responding or occasionally emits calling and courtship signals in response to the female that has produced signals of steady temporal characteristics.Female rivalry shows complex and species specific patterns of information exchange at different levels with a broad-range variation of temporal and frequency characteristics of,until now,unidentified vibratory emissions.展开更多
文摘In Winesburg, Ohio, Sherwood Anderson vividly presented a group of lonely people, deformed in spirit and depressed in life, and longing for love but lack of communication. Such ＂grotesques＂ became considerable images in the research of American literature history. Their life reveals the social role that women play and the change of the man-woman relationship in the United States when it was in its transition to industrialism at the beginning of the 20th century. From the perspective of feminism, this paper conducts a systematical analysis on the social life, social role and family role of the female ＂grotesques＂, and tentatively talks about man-woman relationship.
基金The study was financially supported by the Slovenian Research Agency(the research core funding No.P 1-0255 B,the project No.J 1-8142)the Research Support Foundation of the Federal District(FAP-DF)(the project No.193.000.978/2015).
文摘Multimodal communication in solitary stinkbugs enables them to meet,mate and copulate.Many plant-dwelling species exchange information during the calling phase of mating behavior using substrate-borne vibratory signals.A female-biased gender ratio induces rivalry and competition for a sexual partner.Female competition for males,first described among Heteroptera in three stinkbug species,revealed species specific differences and opened the question of plasticity in individually emitted temporal and frequency signal characteristics during calling and rival alternation.To address this question and gain an insight into the mechanisms underlying stinkbug female rivalry,we compared the characteristics of alternated signals in the southern green stinkbug Nezara viridula(Linnaeus,1758)(Hemiptera:Pentatomidae).Compared to male rivalry,female rivalry is more complex,lasts longer and runs through successive phases by a combination of different song types.The male pheromone triggers alternation between females,producing song pulses that occasionally overlap each other.One female initiates the rivalry by changing individual pulses into pulse trains of three different types.The competing female alternates with pulses of changed temporal characteristics at lower levels of rivalry and by varying the frequency characteristics of pulse trains at higher levels.During female rivalry,the male either stops responding or occasionally emits calling and courtship signals in response to the female that has produced signals of steady temporal characteristics.Female rivalry shows complex and species specific patterns of information exchange at different levels with a broad-range variation of temporal and frequency characteristics of,until now,unidentified vibratory emissions.
