Transgenerational Effects of Parental Rearing Environment Influence the Survivorship of Captive‐Born Offspring in the Wild
Abstract As natural populations decline, captive breeding and rearing programs have become essential components of conservation efforts. However, captive rearing can cause unintended phenotypic and/or genetic changes that adversely impact on population restoration efforts. Here, we test whether the...
Published in: | Conservation Letters |
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Main Authors: | , , , |
Other Authors: | , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Wiley
2014
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Subjects: | |
Online Access: | http://dx.doi.org/10.1111/conl.12092 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fconl.12092 http://onlinelibrary.wiley.com/wol1/doi/10.1111/conl.12092/fullpdf |
Summary: | Abstract As natural populations decline, captive breeding and rearing programs have become essential components of conservation efforts. However, captive rearing can cause unintended phenotypic and/or genetic changes that adversely impact on population restoration efforts. Here, we test whether the exposure of captive‐reared Atlantic salmon ( Salmo salar ) to natural river environments (i.e., “wild exposure”) during early life can serve as a mitigation technique to improve the survivorship of descendents in the wild. Using genetic pedigree reconstruction, we observed a two‐fold increase in the survivorship of offspring of wild‐exposed parents compared to the offspring of captive parents. Our results suggest that harnessing the influence of transgenerational effects in captive‐rearing programs can improve the outcomes of endangered species restoration efforts. |
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