Abstract:
:Survival and fecundity are basic components of demography and therefore have a strong influence on population dynamics. These two key parameters and their relationship are crucial to understand the evolution of life histories. It remains, however, to be empirically established how life span, fecundity, and population dynamics are linked in different organism groups. We conducted a comparative study based on demographic data sets of 55 populations of 23 perennial herbs for which structured demographic models and among-year natural variation in demographic attributes were available. Life span (from 4 to 128 yr old), estimated by using an algorithm, was inversely correlated with the deviance of the population growth rate from equilibrium as well as with among-year population fluctuations. Temporal variability was greater for short-lived species than for the long-lived ones because fecundity was more variable than survival and relatively more important for population dynamics for the short-lived species. The relationship between life span and population stability suggests that selection for longevity may have played an important role in the life history evolution of plants because of its ability to buffer temporal fluctuations in population size.
journal_name
Am J Botjournal_title
American journal of botanyauthors
García MB,Picó FX,Ehrlén Jdoi
10.3732/ajb.95.2.258subject
Has Abstractpub_date
2008-02-01 00:00:00pages
258-62issue
2eissn
0002-9122issn
1537-2197pii
95/2/258journal_volume
95pub_type
杂志文章abstract::The response of axillary buds to floral stimulus activity in stem pieces was examined in two near-isogenic cultivars of tobacco that differ in the recessive maryland mammoth (mm) allele, which confers short-day behavior. All axillary buds from day-neutral plants assayed on six-internode stem pieces made few nodes (les...
journal_title:American journal of botany
pub_type: 杂志文章
doi:
更新日期:1997-07-01 00:00:00
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journal_title:American journal of botany
pub_type: 杂志文章
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journal_title:American journal of botany
pub_type: 杂志文章
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更新日期:1998-02-01 00:00:00
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journal_title:American journal of botany
pub_type: 杂志文章,评审
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更新日期:2014-09-01 00:00:00
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journal_title:American journal of botany
pub_type: 杂志文章
doi:10.3732/ajb.1500079
更新日期:2016-01-01 00:00:00
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journal_title:American journal of botany
pub_type: 杂志文章
doi:10.1002/ajb2.1120
更新日期:2018-07-01 00:00:00
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pub_type: 杂志文章
doi:10.3732/ajb.89.11.1741
更新日期:2002-11-01 00:00:00
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pub_type: 杂志文章
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journal_title:American journal of botany
pub_type: 杂志文章
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更新日期:2010-12-01 00:00:00
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journal_title:American journal of botany
pub_type: 杂志文章
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更新日期:2006-03-01 00:00:00
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journal_title:American journal of botany
pub_type: 杂志文章
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更新日期:2009-01-01 00:00:00
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journal_title:American journal of botany
pub_type: 杂志文章
doi:10.3732/ajb.0800207
更新日期:2009-08-01 00:00:00
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journal_title:American journal of botany
pub_type: 杂志文章
doi:10.3732/ajb.1700078
更新日期:2017-06-01 00:00:00
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journal_title:American journal of botany
pub_type: 杂志文章
doi:
更新日期:1998-03-01 00:00:00
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journal_title:American journal of botany
pub_type: 杂志文章
doi:10.3732/ajb.0800311
更新日期:2009-01-01 00:00:00
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journal_title:American journal of botany
pub_type: 杂志文章
doi:
更新日期:2001-05-01 00:00:00
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journal_title:American journal of botany
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pub_type: 评论,杂志文章
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journal_title:American journal of botany
pub_type: 杂志文章
doi:10.3732/ajb.90.11.1548
更新日期:2003-11-01 00:00:00
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journal_title:American journal of botany
pub_type: 杂志文章
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更新日期:2017-04-01 00:00:00
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journal_title:American journal of botany
pub_type: 杂志文章
doi:10.3732/ajb.93.6.875
更新日期:2006-06-01 00:00:00
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journal_title:American journal of botany
pub_type: 杂志文章
doi:10.3732/ajb.91.9.1371
更新日期:2004-09-01 00:00:00
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journal_title:American journal of botany
pub_type: 杂志文章
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更新日期:1997-05-01 00:00:00
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journal_title:American journal of botany
pub_type: 杂志文章
doi:10.3732/ajb.94.2.184
更新日期:2007-02-01 00:00:00
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journal_title:American journal of botany
pub_type: 杂志文章
doi:10.1002/ajb2.1573
更新日期:2020-12-01 00:00:00
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journal_title:American journal of botany
pub_type: 杂志文章
doi:10.3732/ajb.1700040
更新日期:2017-08-01 00:00:00