American NaturalistPub Date : 2024-01-01Epub Date: 2023-11-28DOI: 10.1086/728406
Grant Emerson Haines, Louis Moisan, Alison M Derry, Andrew P Hendry
{"title":"Corrigendum.","authors":"Grant Emerson Haines, Louis Moisan, Alison M Derry, Andrew P Hendry","doi":"10.1086/728406","DOIUrl":"https://doi.org/10.1086/728406","url":null,"abstract":"","PeriodicalId":50800,"journal":{"name":"American Naturalist","volume":"203 1","pages":"147-159"},"PeriodicalIF":2.9,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139425936","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"2023 American Society of Naturalists Awards.","authors":"","doi":"10.1086/726123","DOIUrl":"10.1086/726123","url":null,"abstract":"","PeriodicalId":50800,"journal":{"name":"American Naturalist","volume":"203 1","pages":"ii-iv"},"PeriodicalIF":2.9,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139425935","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
American NaturalistPub Date : 2023-12-01Epub Date: 2023-10-26DOI: 10.1086/726785
Gregor-Fausto Siegmund, David A Moeller, Vincent M Eckhart, Monica A Geber
{"title":"Bet Hedging Is Not Sufficient to Explain Germination Patterns of a Winter Annual Plant.","authors":"Gregor-Fausto Siegmund, David A Moeller, Vincent M Eckhart, Monica A Geber","doi":"10.1086/726785","DOIUrl":"10.1086/726785","url":null,"abstract":"<p><p>AbstractBet hedging consists of life history strategies that buffer against environmental variability by trading off immediate and long-term fitness. Delayed germination in annual plants is a classic example of bet hedging and is often invoked to explain low germination fractions. We examined whether bet hedging explains low and variable germination fractions among 20 populations of the winter annual plant <i>Clarkia xantiana</i> ssp. <i>xantiana</i> that experience substantial variation in reproductive success among years. Leveraging 15 years of demographic monitoring and 3 years of field germination experiments, we assessed the fitness consequences of seed banks and compared optimal germination fractions from a density-independent bet-hedging model to observed germination fractions. We did not find consistent evidence of bet hedging or the expected trade-off between arithmetic and geometric mean fitness, although delayed germination increased long-term fitness in 7 of 20 populations. Optimal germination fractions were two to five times higher than observed germination fractions, and among-population variation in germination fractions was not correlated with risks across the life cycle. Our comprehensive test suggests that bet hedging is not sufficient to explain the observed germination patterns. Understanding variation in germination strategies will likely require integrating bet hedging with complementary forces shaping the evolution of delayed germination.</p>","PeriodicalId":50800,"journal":{"name":"American Naturalist","volume":"202 6","pages":"767-784"},"PeriodicalIF":2.9,"publicationDate":"2023-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138464171","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Secretary's Report, 2023 : American Society of Naturalists.","authors":"Joel McGlothlin","doi":"10.1086/727824","DOIUrl":"10.1086/727824","url":null,"abstract":"","PeriodicalId":50800,"journal":{"name":"American Naturalist","volume":"202 6","pages":"851-853"},"PeriodicalIF":2.9,"publicationDate":"2023-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138464172","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Treasurer's Report, 2022 : Statement of Activities For the Year Ending December 31, 2022.","authors":"Rebecca C Fuller","doi":"10.1086/726749","DOIUrl":"10.1086/726749","url":null,"abstract":"","PeriodicalId":50800,"journal":{"name":"American Naturalist","volume":"202 6","pages":"854-855"},"PeriodicalIF":2.9,"publicationDate":"2023-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138464173","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Lisa Dickel, Peter Arcese, Lukas F. Keller, Pirmin Nietlisbach, Debora Goedert, Henrik Jensen, Jane M. Reid
{"title":"Multi-generational fitness effects of natural immigration indicate strong heterosis and epistatic breakdown in a wild bird population","authors":"Lisa Dickel, Peter Arcese, Lukas F. Keller, Pirmin Nietlisbach, Debora Goedert, Henrik Jensen, Jane M. Reid","doi":"10.1086/728669","DOIUrl":"https://doi.org/10.1086/728669","url":null,"abstract":"","PeriodicalId":50800,"journal":{"name":"American Naturalist","volume":"81 12","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135091755","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Competition increases risk of species extinction during extreme warming","authors":"Paul Bendiks Walberg","doi":"10.1086/728672","DOIUrl":"https://doi.org/10.1086/728672","url":null,"abstract":"","PeriodicalId":50800,"journal":{"name":"American Naturalist","volume":"81 11","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135091756","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Shawn McEachin, Jonathan P. Drury, Gregory F. Grether
{"title":"Competitive displacement and agonistic character displacement, or the ghost of interference competition","authors":"Shawn McEachin, Jonathan P. Drury, Gregory F. Grether","doi":"10.1086/728671","DOIUrl":"https://doi.org/10.1086/728671","url":null,"abstract":"","PeriodicalId":50800,"journal":{"name":"American Naturalist","volume":"81 9","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135091758","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}