Proceedings of the Royal Society of London. Series B. Biological Sciences最新文献_第9页

History, environment and social behaviour: experimentally induced cooperative breeding in the carrion crow 历史、环境和社会行为:实验诱导的腐肉乌鸦的合作繁殖

Proceedings of the Royal Society of London. Series B. Biological Sciences Pub Date : 2002-06-22 DOI: 10.1098/rspb.2002.2016

V. Baglione, D. Canestrari, J. Martin Marcos, M. Griesser, J. Ekman

{"title":"History, environment and social behaviour: experimentally induced cooperative breeding in the carrion crow","authors":"V. Baglione, D. Canestrari, J. Martin Marcos, M. Griesser, J. Ekman","doi":"10.1098/rspb.2002.2016","DOIUrl":"https://doi.org/10.1098/rspb.2002.2016","url":null,"abstract":"Kin–based cooperative breeding, where grown offspring delay natal dispersal and help their parents to rear new young, has a long history in some avian lineages. Family formation and helping behaviour in extant populations may therefore simply represent the retention of ancestral features, tolerated under current conditions, rather than a current adaptive process driven by environmental factors. Separating these two possibilities challenges evolutionary biologists because of the tight coupling that normally exists between phylogeny and the environmental distribution of species and populations. The carrion crow Corvus corone corone, which exhibits extreme interpopulational variation in the extent of cooperative breeding, with populations showing no delayed dispersal and helping at all, provides a unique opportunity for an experimental approach. Here we show that offspring of non–cooperative carrion crows from Switzerland will remain on the natal territory and express helping behaviour when raised in a cooperative population in Spain. When we transferred carrion crow eggs from Switzerland to Spain, five out of six transplanted juveniles delayed dispersal, and two of those became helpers in the following breeding season. Our results provide compelling experimental evidence of the causal relationship between current environmental conditions and expression of cooperative behaviour.","PeriodicalId":20585,"journal":{"name":"Proceedings of the Royal Society of London. Series B. Biological Sciences","volume":"24 1","pages":"1247 - 1251"},"PeriodicalIF":0.0,"publicationDate":"2002-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81205737","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 60

Attentional processes link perception and action 注意过程将感知和行动联系起来

Proceedings of the Royal Society of London. Series B. Biological Sciences Pub Date : 2002-06-22 DOI: 10.1098/rspb.2002.1998

S. Anderson, N. Yamagishi, Vivian Karavia

引用次数: 113

Endolithic algae: an alternative source of photoassimilates during coral bleaching 内生藻:珊瑚白化期间光同化物的另一种来源

Proceedings of the Royal Society of London. Series B. Biological Sciences Pub Date : 2002-06-22 DOI: 10.1098/rspb.2002.1983

M. Fine, Y. Loya

{"title":"Endolithic algae: an alternative source of photoassimilates during coral bleaching","authors":"M. Fine, Y. Loya","doi":"10.1098/rspb.2002.1983","DOIUrl":"https://doi.org/10.1098/rspb.2002.1983","url":null,"abstract":"Recent reports of worldwide coral bleaching events leading to devastating coral mortality have caused alarm among scientists and resource managers. Differential survival of coral species through bleaching events has been widely documented. We suggest that among the possible factors contributing to survival of coral species during such events are endolithic algae harboured in their skeleton, providing an alternative source of energy. We studied the dynamics of photosynthetic pigment concentrations and biomass of endoliths in the skeleton of the encrusting coral Oculina patagonica throughout a bleaching event. During repeated summer bleaching events these endolithic algae receive increased photosynthetically active radiation, increase markedly in biomass, and produce increasing amounts of photoassimilates, which are translocated to the coral. Chlorophyll concentrations and biomass of endoliths were 4.6 ± 1.57 and 1570 ± 427 μg cm−2 respectively, in skeletons of relatively healthy colonies (0–40%bleaching) but up to 14.8± 2.5 and 4036 ± 764 g cm−2 endolith chlorophyll and biomass respectively, in skeletons of bleached colonies (greater than 40% bleaching). The translocation dynamics of 14C–labelled photoassimilates from the endoliths to bleached coral tissue showed significantly higher 14C activity of the endoliths harboured within the skeletons of bleached corals than that of the endoliths in non–bleached corals. This alternative source of energy may be vital for the survivorship of O. patagonica, allowing gradual recruitment of zooxanthellae and subsequent recovery during the following winter.","PeriodicalId":20585,"journal":{"name":"Proceedings of the Royal Society of London. Series B. Biological Sciences","volume":"1 1","pages":"1205 - 1210"},"PeriodicalIF":0.0,"publicationDate":"2002-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90882202","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 204

Regulation of reproduction in a queenless ant: aggression, pheromones and reduction in conflict 无后蚁的繁殖调节:攻击性、信息素和减少冲突

Proceedings of the Royal Society of London. Series B. Biological Sciences Pub Date : 2002-06-22 DOI: 10.1098/rspb.2002.1991

V. Cuvillier-Hot, R. Gadagkar, C. Peeters, M. Cobb

{"title":"Regulation of reproduction in a queenless ant: aggression, pheromones and reduction in conflict","authors":"V. Cuvillier-Hot, R. Gadagkar, C. Peeters, M. Cobb","doi":"10.1098/rspb.2002.1991","DOIUrl":"https://doi.org/10.1098/rspb.2002.1991","url":null,"abstract":"In the monogynous queenless ant Diacamma ceylonense, the future reproductive (future gamergate) is very aggressive towards infertile workers during the first days of her adult life. Overt aggression disappears at about three weeks, when the future gamergate begins to lay male–destined eggs and is ready to mate. Over the same period, her cuticular hydrocarbon profile alters, changing from a chemical signature similar to that of a sterile worker towards that of a gamergate. In nature, these behavioural and chemical changes will coincide with a reduction in conflict within the nest: faced with a virgin future gamergate, infertile workers have an interest in producing male–destined eggs; however, once the gamergate produces female eggs, they have an interest in rearing her offspring. This demonstration of a shift from physical inhibition to chemical signalling is interpreted in terms of sociogenetic theory, the role of cuticular hydrocarbons as an indicator of fertility in insects and the fact that the regulation of reproduction in Diacamma involves mechanisms redolent of both queenless and queenright ant species.","PeriodicalId":20585,"journal":{"name":"Proceedings of the Royal Society of London. Series B. Biological Sciences","volume":"105 1","pages":"1295 - 1300"},"PeriodicalIF":0.0,"publicationDate":"2002-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79127946","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 83

Interaction between natural and sexual selection during the evolution of mate recognition 配偶识别进化过程中自然选择与性选择的相互作用

Proceedings of the Royal Society of London. Series B. Biological Sciences Pub Date : 2002-06-07 DOI: 10.1098/rspb.2002.2002

M. Blows

{"title":"Interaction between natural and sexual selection during the evolution of mate recognition","authors":"M. Blows","doi":"10.1098/rspb.2002.2002","DOIUrl":"https://doi.org/10.1098/rspb.2002.2002","url":null,"abstract":"The interaction between natural and sexual selection is central to many theories of how mate choice and reproductive isolation evolve, but their joint effect on the evolution of mate recognition has not, to my knowledge, been investigated in an evolutionary experiment. Natural and sexual selection were manipulated in interspecific hybrid populations of Drosophila to determine their effects on the evolution of a mate recognition system comprised of cuticular hydrocarbons (CHCs). The effect of natural selection in isolation indicated that CHCs were costly for males and females to produce. The effect of sexual selection in isolation indicated that females preferred males with a particular CHC composition. However, the interaction between natural and sexual selection had a greater effect on the evolution of the mate recognition system than either process in isolation. When natural and sexual selection were permitted to operate in combination, male CHCs became exaggerated to a greater extent than in the presence of sexual selection alone, and female CHCs evolved against the direction of natural selection. This experiment demonstrated that the interaction between natural and sexual selection is critical in determining the direction and magnitude of the evolutionary response of the mate recognition system.","PeriodicalId":20585,"journal":{"name":"Proceedings of the Royal Society of London. Series B. Biological Sciences","volume":"126 1","pages":"1113 - 1118"},"PeriodicalIF":0.0,"publicationDate":"2002-06-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87753433","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 98

When looks can kill: the evolution of sexually dimorphic floral display and the extinction of dioecious plants 当外表可以杀死:两性二形花展示的进化和雌雄异株植物的灭绝

Proceedings of the Royal Society of London. Series B. Biological Sciences Pub Date : 2002-06-07 DOI: 10.1098/rspb.2002.2004

J. Vamosi, S. Otto

引用次数: 99

Evolution of larger sperm in response to experimentally increased sperm competition in Caenorhabditis elegans 秀丽隐杆线虫在精子竞争增加的实验条件下，更大精子的进化

Proceedings of the Royal Society of London. Series B. Biological Sciences Pub Date : 2002-06-07 DOI: 10.1098/rspb.2002.1996

C. LaMunyon, Samuel Ward

引用次数: 110

Timing of transmission and the evolution of virulence of an insect virus 昆虫病毒传播的时间和毒力的演化

Proceedings of the Royal Society of London. Series B. Biological Sciences Pub Date : 2002-06-07 DOI: 10.1098/rspb.2002.1976

Vaughn S Cooper, M. Reiskind, Jonathan Miller, Kirsten A Shelton, B. Walther, J. Elkinton, P. Ewald

{"title":"Timing of transmission and the evolution of virulence of an insect virus","authors":"Vaughn S Cooper, M. Reiskind, Jonathan Miller, Kirsten A Shelton, B. Walther, J. Elkinton, P. Ewald","doi":"10.1098/rspb.2002.1976","DOIUrl":"https://doi.org/10.1098/rspb.2002.1976","url":null,"abstract":"We used the nuclear polyhedrosis virus of the gypsy moth, Lymantria dispar, to investigate whether the timing of transmission influences the evolution of virulence. In theory, early transmission should favour rapid replication and increase virulence, while late transmission should favour slower replication and reduce virulence. We tested this prediction by subjecting one set of 10 virus lineages to early transmission (Early viruses) and another set to late transmission (Late viruses). Each lineage of virus underwent nine cycles of transmission. Virulence assays on these lineages indicated that viruses transmitted early were significantly more lethal than those transmitted late. Increased exploitation of the host appears to come at a cost, however. While Early viruses initially produced more progeny, Late viruses were ultimately more productive over the entire duration of the infection. These results illustrate fitness trade-offs associated with the evolution of virulence and indicate that milder viruses can obtain a numerical advantage when mild and harmful strains tend to infect separate hosts.","PeriodicalId":20585,"journal":{"name":"Proceedings of the Royal Society of London. Series B. Biological Sciences","volume":"31 1","pages":"1161 - 1165"},"PeriodicalIF":0.0,"publicationDate":"2002-06-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75511239","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 55

The evolution of self-fertilization in density-regulated populations 密度调节种群中自花受精的进化

Proceedings of the Royal Society of London. Series B. Biological Sciences Pub Date : 2002-06-07 DOI: 10.1098/rspb.2002.1997

P. Cheptou, U. Dieckmann

{"title":"The evolution of self-fertilization in density-regulated populations","authors":"P. Cheptou, U. Dieckmann","doi":"10.1098/rspb.2002.1997","DOIUrl":"https://doi.org/10.1098/rspb.2002.1997","url":null,"abstract":"The evolution of selfing in hermaphrodites has been studied to reveal the demographic conditions that lead to intermediate selfing rates. Using a demographic model based on Ricker–type density regulation, we assume first that, independent of population density, inbred individuals survive less well than outbred individuals and second, that inbred and outbred individuals differ in their competitive abilities in density–regulated populations. The evolution of selfing, driven by inbreeding depression and the cost of outcrossing, is then analysed for three fundamentally different demographic scenarios: stable population densities, deterministically varying population densities (resulting from cyclical or chaotic population dynamics) and stochastic fluctuations of carrying capacities (resulting from environmental noise). We show that even under stable demographic conditions evolutionary outcomes are not confined to either complete selfing or full outcrossing. Instead, intermediate selfing rates arise under a wide range of conditions, depending on the nature of competitive interactions between inbred and outbred individuals. We also explore the evolution of selfing under deterministic and stochastic density fluctuations to demonstrate that such environmental conditions can evolutionarily stabilize intermediate selfing rates. This is the first study, to our knowledge, to consider in detail the effect of density regulation on the evolution of selfing rates.","PeriodicalId":20585,"journal":{"name":"Proceedings of the Royal Society of London. Series B. Biological Sciences","volume":"98 1","pages":"1177 - 1186"},"PeriodicalIF":0.0,"publicationDate":"2002-06-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73840666","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 54

Partnership status and the temporal context of relationships influence human female preferences for sexual dimorphism in male face shape 伴侣关系状态和关系的时间背景影响人类女性对男性脸型性别二态性的偏好

Proceedings of the Royal Society of London. Series B. Biological Sciences Pub Date : 2002-06-07 DOI: 10.1098/rspb.2002.1984

A. Little, B. Jones, I. Penton-Voak, D. Burt, D. Perrett

{"title":"Partnership status and the temporal context of relationships influence human female preferences for sexual dimorphism in male face shape","authors":"A. Little, B. Jones, I. Penton-Voak, D. Burt, D. Perrett","doi":"10.1098/rspb.2002.1984","DOIUrl":"https://doi.org/10.1098/rspb.2002.1984","url":null,"abstract":"Secondary sexual characteristics may indicate quality of the immune system and therefore a preference for masculinity may confer genetic benefits to offspring; however, high masculinity may be associated with costs of decreased paternal investment. The current study examined women's preferences for masculinity in male faces by using computer graphics to allow transformation between feminine and masculine versions of individual male faces. We found that preferences for masculinity are increased when women either have a partner or are considering a short–term relationship. Such preferences are potentially adaptive, serving to: (i) maximize parental investment and cooperation in long–term relationships by biasing choices towards feminine faced males, and (ii) maximize possible good–gene benefits of short–term or extra–pair partners by biasing choices towards masculine faced males. We also found that individuals using oral contraception do not show the above effects, indicating that such hormonal intervention potentially disrupts women's choices for evolutionarily relevant benefits from males.","PeriodicalId":20585,"journal":{"name":"Proceedings of the Royal Society of London. Series B. Biological Sciences","volume":"43 1","pages":"1095 - 1100"},"PeriodicalIF":0.0,"publicationDate":"2002-06-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89976944","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 418