Life history of the long‐lived gynodioecious cushion plant Silene acaulis (Caryophyllaceae), inferred from size‐based population projection matrices
Alpine plants often appear to have long life‐spans as an adaptation to harsh and unpredictable environmental conditions, yet many lack reliable indicators of age that would make it possible to determine their true longevity. Their extended life‐spans also pose problems for measuring lifetime reprodu...
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crwiley:10.2307/2446413 2024-05-19T07:48:27+00:00 Life history of the long‐lived gynodioecious cushion plant Silene acaulis (Caryophyllaceae), inferred from size‐based population projection matrices Morris, William F. Doak, Daniel F. National Science Foundation 1998 http://dx.doi.org/10.2307/2446413 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.2307%2F2446413 https://onlinelibrary.wiley.com/doi/pdf/10.2307/2446413 http://api.wiley.com/onlinelibrary/chorus/v1/articles/10.2307%2F2446413 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor American Journal of Botany volume 85, issue 6, page 784-793 ISSN 0002-9122 1537-2197 Plant Science Genetics Ecology, Evolution, Behavior and Systematics journal-article 1998 crwiley https://doi.org/10.2307/2446413 2024-04-22T07:34:32Z Alpine plants often appear to have long life‐spans as an adaptation to harsh and unpredictable environmental conditions, yet many lack reliable indicators of age that would make it possible to determine their true longevity. Their extended life‐spans also pose problems for measuring lifetime reproductive success, a key component of breeding system evolution in species such as the gynodioecious cushion plant Silene acaulis . For a population of S. acaulis in south‐central Alaska, we applied a recently derived analytical approach using size‐based population projection matrices that allowed us to estimate: (1) the relationship between cushion diameter and age; and (2) lifetime reproductive success through seed production by females relative to hermaphrodites. Because of a combination of slow growth, frequent shrinkage, and extremely high adult survival, we estimate that the largest cushions in our study population exceed 300 yr in age, and some may live substantially longer, despite the seemingly inhospitable alpine environment they inhabit. Females are estimated to produce 4.4 times as many offspring via seed production over the course of their lives as do hermaphrodites, a difference that is more than sufficient to assure the persistence of females despite their inability to transmit genes through pollen. These results highlight the utility of size‐based projection matrices for studying the life histories of herbaceous perennials whose life‐span and lifetime reproductive success cannot be determined easily by any other means. Article in Journal/Newspaper Silene acaulis Alaska Wiley Online Library American Journal of Botany 85 6 784 793 |
institution |
Open Polar |
collection |
Wiley Online Library |
op_collection_id |
crwiley |
language |
English |
topic |
Plant Science Genetics Ecology, Evolution, Behavior and Systematics |
spellingShingle |
Plant Science Genetics Ecology, Evolution, Behavior and Systematics Morris, William F. Doak, Daniel F. Life history of the long‐lived gynodioecious cushion plant Silene acaulis (Caryophyllaceae), inferred from size‐based population projection matrices |
topic_facet |
Plant Science Genetics Ecology, Evolution, Behavior and Systematics |
description |
Alpine plants often appear to have long life‐spans as an adaptation to harsh and unpredictable environmental conditions, yet many lack reliable indicators of age that would make it possible to determine their true longevity. Their extended life‐spans also pose problems for measuring lifetime reproductive success, a key component of breeding system evolution in species such as the gynodioecious cushion plant Silene acaulis . For a population of S. acaulis in south‐central Alaska, we applied a recently derived analytical approach using size‐based population projection matrices that allowed us to estimate: (1) the relationship between cushion diameter and age; and (2) lifetime reproductive success through seed production by females relative to hermaphrodites. Because of a combination of slow growth, frequent shrinkage, and extremely high adult survival, we estimate that the largest cushions in our study population exceed 300 yr in age, and some may live substantially longer, despite the seemingly inhospitable alpine environment they inhabit. Females are estimated to produce 4.4 times as many offspring via seed production over the course of their lives as do hermaphrodites, a difference that is more than sufficient to assure the persistence of females despite their inability to transmit genes through pollen. These results highlight the utility of size‐based projection matrices for studying the life histories of herbaceous perennials whose life‐span and lifetime reproductive success cannot be determined easily by any other means. |
author2 |
National Science Foundation |
format |
Article in Journal/Newspaper |
author |
Morris, William F. Doak, Daniel F. |
author_facet |
Morris, William F. Doak, Daniel F. |
author_sort |
Morris, William F. |
title |
Life history of the long‐lived gynodioecious cushion plant Silene acaulis (Caryophyllaceae), inferred from size‐based population projection matrices |
title_short |
Life history of the long‐lived gynodioecious cushion plant Silene acaulis (Caryophyllaceae), inferred from size‐based population projection matrices |
title_full |
Life history of the long‐lived gynodioecious cushion plant Silene acaulis (Caryophyllaceae), inferred from size‐based population projection matrices |
title_fullStr |
Life history of the long‐lived gynodioecious cushion plant Silene acaulis (Caryophyllaceae), inferred from size‐based population projection matrices |
title_full_unstemmed |
Life history of the long‐lived gynodioecious cushion plant Silene acaulis (Caryophyllaceae), inferred from size‐based population projection matrices |
title_sort |
life history of the long‐lived gynodioecious cushion plant silene acaulis (caryophyllaceae), inferred from size‐based population projection matrices |
publisher |
Wiley |
publishDate |
1998 |
url |
http://dx.doi.org/10.2307/2446413 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.2307%2F2446413 https://onlinelibrary.wiley.com/doi/pdf/10.2307/2446413 http://api.wiley.com/onlinelibrary/chorus/v1/articles/10.2307%2F2446413 |
genre |
Silene acaulis Alaska |
genre_facet |
Silene acaulis Alaska |
op_source |
American Journal of Botany volume 85, issue 6, page 784-793 ISSN 0002-9122 1537-2197 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.2307/2446413 |
container_title |
American Journal of Botany |
container_volume |
85 |
container_issue |
6 |
container_start_page |
784 |
op_container_end_page |
793 |
_version_ |
1799466700184223744 |