Inbreeding Depression Manifested in Progeny From Fragmented Populations of the Wind-Pollinated Dioecious Conifer <i>Afrocarpus gracilior</i> (Pilg.) C. N. Page
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60460709%3A41340%2F25%3A106448" target="_blank" >RIV/60460709:41340/25:106448 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1002/ece3.70903" target="_blank" >https://doi.org/10.1002/ece3.70903</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1002/ece3.70903" target="_blank" >10.1002/ece3.70903</a>
Alternative languages
Result language
angličtina
Original language name
Inbreeding Depression Manifested in Progeny From Fragmented Populations of the Wind-Pollinated Dioecious Conifer <i>Afrocarpus gracilior</i> (Pilg.) C. N. Page
Original language description
Human activities such as agriculture, urbanization, and logging have caused widespread destruction of forests, leading to forest fragmentation. Fragmentation has been shown to reduce genetic diversity and increase inbreeding in forest populations, potentially leading to inbreeding depression manifested through decreased reproductive success and progeny vigor. The severity of these impacts, however, varies among species and is largely influenced by their mating systems. This study examines the effects of forest fragmentation on Afrocarpus gracilior, a dioecious, wind-pollinated conifer, by assessing genetic diversity, reproductive success, and early progeny fitness. Our analysis revealed alarmingly low genetic diversity and high genetic drift, especially in small and isolated populations. Consistent with these findings, reduced progeny fitness was observed, with small populations showing 53% lower germination rates, 33% reduced acclimatization, 30% slower diameter growth, 41% reduced height growth, and an 80% increase in leaf scorch. Correlation analysis further confirmed a strong relationship between the genetic diversity and progeny fitness traits. These findings suggest that inbreeding depression severely affects the fitness of progeny from small and isolated populations of A. gracilior, posing a serious threat to their long-term survival. The implications for conservation and restoration efforts are immense, underscoring the need to prioritize genetically diverse populations for conservation and strategically procure seeds to support the survival of this species.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10618 - Ecology
Result continuities
Project
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Continuities
S - Specificky vyzkum na vysokych skolach
Others
Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
ECOLOGY AND EVOLUTION
ISSN
2045-7758
e-ISSN
2045-7758
Volume of the periodical
15
Issue of the periodical within the volume
FEB 2025
Country of publishing house
US - UNITED STATES
Number of pages
19
Pages from-to
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UT code for WoS article
001418071900001
EID of the result in the Scopus database
2-s2.0-85218949607