Proceedings of the Royal Society of London. Series B. Biological Sciences最新文献_第10页

Age-specific survival and reproductive probabilities: evidence for senescence in male fallow deer (Dama dama) 年龄特异性生存和繁殖概率:雄性黇鹿衰老的证据(Dama Dama)

Proceedings of the Royal Society of London. Series B. Biological Sciences Pub Date : 2002-06-07 DOI: 10.1098/rspb.2002.1993

A. McElligott, Res Altwegg, Thomas J. Hayden

{"title":"Age-specific survival and reproductive probabilities: evidence for senescence in male fallow deer (Dama dama)","authors":"A. McElligott, Res Altwegg, Thomas J. Hayden","doi":"10.1098/rspb.2002.1993","DOIUrl":"https://doi.org/10.1098/rspb.2002.1993","url":null,"abstract":"Survival and reproduction are key features in the evolution of life–history strategies. In this study, we use capture–mark–resighting and multi–state models to examine survival senescence and reproductive senescence in six successive cohorts of fallow bucks that were studied for 16 years. We found that the overall age-specific survival probabilities of males were highly variable and the best–fitting model revealed that fallow bucks have four life–history stages: yearling, pre–reproductive, prime–age and senescent. Pre–reproductive males (2 and 3 years old) had the highest survival. Survival declined sharply after the age of 9 years, indicating that senescence had begun. When we considered reproducing and non-reproducing males separately, there was no evidence of senescence in the former, and steadily decreasing survival after the onset of social maturity in the latter. Reproduction probability also declined in older males, and thus we provide very strong evidence of senescence. Reproducers had a greater chance of reproducing again in the following year than non–reproducers. Furthermore, there were differences in the survival probabilities, with reproducers consistently surviving better than non–reproducers. In our study population, reproducers allocate more to the effort to reproduce than non–reproducers. Therefore our results indicate the generally higher phenotypic quality of reproducing males. These results, along with earlier studies on the same population, could indicate positive relationships between fitness correlates.","PeriodicalId":20585,"journal":{"name":"Proceedings of the Royal Society of London. Series B. Biological Sciences","volume":"353 1","pages":"1129 - 1137"},"PeriodicalIF":0.0,"publicationDate":"2002-06-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73948533","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: 110

Sensitive dependencies and separation distances for genetically modified herbicide-tolerant crops 耐除草剂转基因作物的敏感依赖性和分离距离

Proceedings of the Royal Society of London. Series B. Biological Sciences Pub Date : 2002-06-07 DOI: 10.1098/rspb.2002.2007

J. Perry

引用次数: 32

Chimpanzees and the mathematics of battle 黑猩猩和战斗的数学

Proceedings of the Royal Society of London. Series B. Biological Sciences Pub Date : 2002-06-07 DOI: 10.1098/rspb.2001.1926

Michael L. Wilson, N. Britton, Nigel R. Franks

引用次数: 120

Canal construction destroys the barrier between major European invasion lineages of the zebra mussel 运河的建设破坏了斑马贻贝主要欧洲入侵谱系之间的屏障

Proceedings of the Royal Society of London. Series B. Biological Sciences Pub Date : 2002-06-07 DOI: 10.1098/rspb.2002.1994

J. Müller, D. Hidde, A. Seitz

引用次数: 38

Dietary carotenoids predict plumage coloration in wild house finches 饮食中的类胡萝卜素可以预测野生家雀的羽毛颜色

Proceedings of the Royal Society of London. Series B. Biological Sciences Pub Date : 2002-06-07 DOI: 10.1098/rspb.2002.1980

G. E. Hill, C. Inouye, R. Montgomerie

{"title":"Dietary carotenoids predict plumage coloration in wild house finches","authors":"G. E. Hill, C. Inouye, R. Montgomerie","doi":"10.1098/rspb.2002.1980","DOIUrl":"https://doi.org/10.1098/rspb.2002.1980","url":null,"abstract":"Carotenoid pigments are a widespread source of ornamental coloration in vertebrates and expression of carotenoid–based colour displays has been shown to serve as an important criterion in female mate choice in birds and fishes. Unlike other integumentary pigments, carotenoids cannot be synthesized; they must be ingested. Carotenoid–based coloration is condition–dependent and has been shown to be affected by both parasites and nutritional condition. A controversial hypothesis is that the expression of carotenoid–based coloration in wild vertebrates is also affected by the amount and types of carotenoid pigments that are ingested. We tested this carotenoid-limitation hypothesis by sampling the gut contents of moulting house finches and comparing the concentration of carotenoid pigments in their gut contents with the colour of growing feathers. We found a positive association: males that ingested food with a higher concentration of carotenoid pigments grew brighter ornamental plumage. We also compared the concentration of carotenoids in the gut contents of males from two subspecies of house finches with small and large patches of carotenoid–based coloration. Consistent with the hypothesis that carotenoid access drives the evolution of carotenoid-based colour displays, males from the population with limited ornamentation had much lower concentrations of carotenoids in their gut contents than males from the population with extensive ornamentation. These observations support the idea that carotenoid intake plays a part in determining the plumage brightness of male house finches.","PeriodicalId":20585,"journal":{"name":"Proceedings of the Royal Society of London. Series B. Biological Sciences","volume":"14 1","pages":"1119 - 1124"},"PeriodicalIF":0.0,"publicationDate":"2002-06-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82290840","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: 256

Epistasis and hybrid sterility in Saccharomyces 酵母菌的上位性与杂交不育

Proceedings of the Royal Society of London. Series B. Biological Sciences Pub Date : 2002-06-07 DOI: 10.1098/rspb.2002.1989

D. Greig, R. Borts, E. Louis, M. Travisano

引用次数: 100

Inbreeding and experience affect response to climate change by endangered woodpeckers 近亲繁殖和经验影响着濒危啄木鸟对气候变化的反应

Proceedings of the Royal Society of London. Series B. Biological Sciences Pub Date : 2002-06-07 DOI: 10.1098/rspb.2002.1966

K. Schiegg, G. Pasinelli, J. Walters, S. Daniels

引用次数: 68

A unified model of spatial and episodic memory 空间记忆和情景记忆的统一模型

Proceedings of the Royal Society of London. Series B. Biological Sciences Pub Date : 2002-06-07 DOI: 10.1098/rspb.2002.2009

E. Rolls, S. Stringer, T. Trappenberg

引用次数: 95

Contrast in adaptive mass gains: Eurasian golden plovers store fat before midwinter and protein before prebreeding flight 适应性质量增益的对比:欧亚金鸻在仲冬前储存脂肪，在预繁殖飞行前储存蛋白质

Proceedings of the Royal Society of London. Series B. Biological Sciences Pub Date : 2002-06-07 DOI: 10.1098/rspb.2002.1990

T. Piersma, J. Jukema

{"title":"Contrast in adaptive mass gains: Eurasian golden plovers store fat before midwinter and protein before prebreeding flight","authors":"T. Piersma, J. Jukema","doi":"10.1098/rspb.2002.1990","DOIUrl":"https://doi.org/10.1098/rspb.2002.1990","url":null,"abstract":"Before predictable periods of high nutritional demand and little or no intake, vertebrates store fuel mainly composed of energy–dense lipids or energy–poor but protein–rich muscle tissue. Documenting contrasts in fuel composition and storage patterns within species, or even within individuals, would greatly help to elucidate the functional significance of the variety of storage strategies demonstrated in birds. We show here that the 40–50 g mass gain of 200 g in Eurasian golden plovers (Pluvialis apricaria) in autumn in The Netherlands consists of fat only, but that the similar gain in body mass in spring consists of proteinaceous tissue (pectoral and other skeletal muscle and possibly skin tissue). That the same golden plovers store energy in autumn and store protein in spring suggests that they face energy deficits in early winter and risk protein deficits in spring, especially perhaps after arrival on the breeding grounds in late April and early May. In autumn and winter their diet consists largely of protein–rich earthworms, but upon arrival on Low Arctic and montane tundras, golden plovers tend to eat berries which are rich in sugars but notably poor in proteins. We therefore propose that the build-up of proteinaceous tissue in spring reflects a strategic storage of a nutritional resource that is likely to be in short supply somewhat later in the year.","PeriodicalId":20585,"journal":{"name":"Proceedings of the Royal Society of London. Series B. Biological Sciences","volume":"120 1","pages":"1101 - 1105"},"PeriodicalIF":0.0,"publicationDate":"2002-06-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87702582","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: 35

How do birds' tails work? Delta–wing theory fails to predict tail shape during flight 鸟的尾巴是如何工作的?三角翼理论无法预测飞行过程中的尾翼形状

Proceedings of the Royal Society of London. Series B. Biological Sciences Pub Date : 2002-05-22 DOI: 10.1098/rspb.2001.1901

Matthew R. Evans, Mikael Rosén, Kirsty J. Park, Anders Hedenström

引用次数: 37