Impacts of habitat fragmentation on genetic diversity in a tropical forest butterfly on Borneo
Many areas of rain forest now exist as habitat fragments, and understanding the impacts of fragmentation is important for determining the viability of populations within forest remnants. We investigated impacts of forest fragmentation on genetic diversity in the butterfly Mycalesis orseis (Satyrinae...
| Main Authors: | , , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Cambridge University Press
2007
|
| Subjects: | |
| Online Access: | https://eprints.ums.edu.my/id/eprint/21447/1/Impacts%20of%20habitat%20fragmentation%20on%20genetic%20diversity%20in%20a%20tropical%20forest%20butterfly%20on%20Borneo.pdf |
| _version_ | 1796910040179802112 |
|---|---|
| author | Suzan Benedick Thomas A. White Jeremy B. Searle Keith C. Hamer Nazirah Mustaffa Chey Vun Khen Maryati Mohamed, Datin Menno Schilthuizen Jane K. Hill |
| author_facet | Suzan Benedick Thomas A. White Jeremy B. Searle Keith C. Hamer Nazirah Mustaffa Chey Vun Khen Maryati Mohamed, Datin Menno Schilthuizen Jane K. Hill |
| author_sort | Suzan Benedick |
| collection | UMS |
| description | Many areas of rain forest now exist as habitat fragments, and understanding the impacts of fragmentation is important for determining the viability of populations within forest remnants. We investigated impacts of forest fragmentation on genetic diversity in the butterfly Mycalesis orseis (Satyrinae) in Sabah (Malaysian Borneo). We investigated mtDNA diversity in 90 individuals from ten forest sites typical of the sizes of forest remnants that currently exist in the region. Nucleotide diversity declined with increasing isolation of remnants, but there was no effect of remnant size or population size, and haplotype diversity was similar among sites. Thus, approximately 50 y after forest fragmentation, few changes in genetic diversity were apparent and remnants apparently supported genetically viable populations of this butterfly. Many studies have shown that responses of species to habitat fragmentation usually follow a time delay, and so we developed a Monte Carlo simulation model to investigate changes in genetic diversity over time in small remnants. Model output indicated a substantial time delay (> 100 y) between fragmentation and genetic erosion, suggesting that, in the smallest study remnants, an increased risk of extinction from reduced genetic diversity is likely in the longer term. |
| first_indexed | 2024-03-06T02:58:32Z |
| format | Article |
| id | ums.eprints-21447 |
| institution | Universiti Malaysia Sabah |
| language | English |
| last_indexed | 2024-03-06T02:58:32Z |
| publishDate | 2007 |
| publisher | Cambridge University Press |
| record_format | dspace |
| spelling | ums.eprints-214472019-03-05T04:20:51Z https://eprints.ums.edu.my/id/eprint/21447/ Impacts of habitat fragmentation on genetic diversity in a tropical forest butterfly on Borneo Suzan Benedick Thomas A. White Jeremy B. Searle Keith C. Hamer Nazirah Mustaffa Chey Vun Khen Maryati Mohamed, Datin Menno Schilthuizen Jane K. Hill QH Natural history QL Zoology Many areas of rain forest now exist as habitat fragments, and understanding the impacts of fragmentation is important for determining the viability of populations within forest remnants. We investigated impacts of forest fragmentation on genetic diversity in the butterfly Mycalesis orseis (Satyrinae) in Sabah (Malaysian Borneo). We investigated mtDNA diversity in 90 individuals from ten forest sites typical of the sizes of forest remnants that currently exist in the region. Nucleotide diversity declined with increasing isolation of remnants, but there was no effect of remnant size or population size, and haplotype diversity was similar among sites. Thus, approximately 50 y after forest fragmentation, few changes in genetic diversity were apparent and remnants apparently supported genetically viable populations of this butterfly. Many studies have shown that responses of species to habitat fragmentation usually follow a time delay, and so we developed a Monte Carlo simulation model to investigate changes in genetic diversity over time in small remnants. Model output indicated a substantial time delay (> 100 y) between fragmentation and genetic erosion, suggesting that, in the smallest study remnants, an increased risk of extinction from reduced genetic diversity is likely in the longer term. Cambridge University Press 2007-11 Article PeerReviewed text en https://eprints.ums.edu.my/id/eprint/21447/1/Impacts%20of%20habitat%20fragmentation%20on%20genetic%20diversity%20in%20a%20tropical%20forest%20butterfly%20on%20Borneo.pdf Suzan Benedick and Thomas A. White and Jeremy B. Searle and Keith C. Hamer and Nazirah Mustaffa and Chey Vun Khen and Maryati Mohamed, Datin and Menno Schilthuizen and Jane K. Hill (2007) Impacts of habitat fragmentation on genetic diversity in a tropical forest butterfly on Borneo. Journal of Tropical Ecology, 23 (6). pp. 623-634. ISSN 0266-4674 https://doi.org/10.1017/S0266467407004543 |
| spellingShingle | QH Natural history QL Zoology Suzan Benedick Thomas A. White Jeremy B. Searle Keith C. Hamer Nazirah Mustaffa Chey Vun Khen Maryati Mohamed, Datin Menno Schilthuizen Jane K. Hill Impacts of habitat fragmentation on genetic diversity in a tropical forest butterfly on Borneo |
| title | Impacts of habitat fragmentation on genetic diversity in a tropical forest butterfly on Borneo |
| title_full | Impacts of habitat fragmentation on genetic diversity in a tropical forest butterfly on Borneo |
| title_fullStr | Impacts of habitat fragmentation on genetic diversity in a tropical forest butterfly on Borneo |
| title_full_unstemmed | Impacts of habitat fragmentation on genetic diversity in a tropical forest butterfly on Borneo |
| title_short | Impacts of habitat fragmentation on genetic diversity in a tropical forest butterfly on Borneo |
| title_sort | impacts of habitat fragmentation on genetic diversity in a tropical forest butterfly on borneo |
| topic | QH Natural history QL Zoology |
| url | https://eprints.ums.edu.my/id/eprint/21447/1/Impacts%20of%20habitat%20fragmentation%20on%20genetic%20diversity%20in%20a%20tropical%20forest%20butterfly%20on%20Borneo.pdf |
| work_keys_str_mv | AT suzanbenedick impactsofhabitatfragmentationongeneticdiversityinatropicalforestbutterflyonborneo AT thomasawhite impactsofhabitatfragmentationongeneticdiversityinatropicalforestbutterflyonborneo AT jeremybsearle impactsofhabitatfragmentationongeneticdiversityinatropicalforestbutterflyonborneo AT keithchamer impactsofhabitatfragmentationongeneticdiversityinatropicalforestbutterflyonborneo AT nazirahmustaffa impactsofhabitatfragmentationongeneticdiversityinatropicalforestbutterflyonborneo AT cheyvunkhen impactsofhabitatfragmentationongeneticdiversityinatropicalforestbutterflyonborneo AT maryatimohameddatin impactsofhabitatfragmentationongeneticdiversityinatropicalforestbutterflyonborneo AT mennoschilthuizen impactsofhabitatfragmentationongeneticdiversityinatropicalforestbutterflyonborneo AT janekhill impactsofhabitatfragmentationongeneticdiversityinatropicalforestbutterflyonborneo |