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Barriers to dispersal of rainforest butterflies in tropical agricultural landscapes

Fragmentation of natural habitats can be detrimental for species if individuals fail to cross habitat boundaries to reach new locations, thereby reducing functional connectivity. Connectivity is crucial for species shifting their ranges under climate change, making it important to understand factors...

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Main Authors: Sarah A. Scriven, Colin M. Beale, Suzan Benedick, Jane K. Hill
Format: Article
Language:English
English
Published: John Wiley & Sons 2016
Subjects:
QH540-549.5 Ecology
QL461-599.82 Insects
Online Access:https://eprints.ums.edu.my/id/eprint/30983/1/Barriers%20to%20dispersal%20of%20rainforest%20butterflies%20in%20tropical%20agricultural%20landscapes-ABSTRACT.pdf
https://eprints.ums.edu.my/id/eprint/30983/2/Barriers%20to%20dispersal%20of%20rainforest%20butterflies%20in%20tropical%20agricultural%20landscapes.pdf
https://eprints.ums.edu.my/id/eprint/30983/
https://www.researchgate.net/publication/310573642_Barriers_to_dispersal_of_rain_forest_butterflies_in_tropical_agricultural_landscapes
http://doi.org/10.1111/btp.12397
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spelling my.ums.eprints.309832021-11-21T23:35:08Z https://eprints.ums.edu.my/id/eprint/30983/ Barriers to dispersal of rainforest butterflies in tropical agricultural landscapes Sarah A. Scriven Colin M. Beale Suzan Benedick Jane K. Hill QH540-549.5 Ecology QL461-599.82 Insects Fragmentation of natural habitats can be detrimental for species if individuals fail to cross habitat boundaries to reach new locations, thereby reducing functional connectivity. Connectivity is crucial for species shifting their ranges under climate change, making it important to understand factors that might prevent movement through human-modified landscapes. In tropical regions, rain forests are being fragmented by agricultural expansion, potentially isolating populations of highly diverse forest-dependent species. The likelihood of crossing habitat boundaries is an important determinant of species dispersal through fragmented landscapes, and so we examined movement across rain forest-oil palm plantation boundaries on Borneo by using relatively mobile nymphalid butterflies as our model study taxon. We marked 1666 individuals from 65 species, and 19 percent (100/527) of recaptured individuals crossed the boundary. Boundary crossing was relatively frequent in some species, and net movement of individuals was from forest into plantation. However, boundary crossing from forest into plantation was detected in less than 50 percent (12/28) of recaptured species and was dominated by small-sized butterfly species whose larval host plants occurred within plantations. Thus, while oil palm plantations may be relatively permeable to some species, they may act as barriers to the movement of forest-dependent species (i.e., species that require rain forest habitat to breed), highlighting the importance of maintaining forest connectivity for conserving rain forest species. John Wiley & Sons 2016-11 Article NonPeerReviewed text en https://eprints.ums.edu.my/id/eprint/30983/1/Barriers%20to%20dispersal%20of%20rainforest%20butterflies%20in%20tropical%20agricultural%20landscapes-ABSTRACT.pdf text en https://eprints.ums.edu.my/id/eprint/30983/2/Barriers%20to%20dispersal%20of%20rainforest%20butterflies%20in%20tropical%20agricultural%20landscapes.pdf Sarah A. Scriven and Colin M. Beale and Suzan Benedick and Jane K. Hill (2016) Barriers to dispersal of rainforest butterflies in tropical agricultural landscapes. Biotropica, 49. pp. 1-11. ISSN 1744-7429 https://www.researchgate.net/publication/310573642_Barriers_to_dispersal_of_rain_forest_butterflies_in_tropical_agricultural_landscapes http://doi.org/10.1111/btp.12397
institution Universiti Malaysia Sabah
building UMS Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Sabah
content_source UMS Institutional Repository
url_provider http://eprints.ums.edu.my/
language English
English
topic QH540-549.5 Ecology
QL461-599.82 Insects
spellingShingle QH540-549.5 Ecology
QL461-599.82 Insects
Sarah A. Scriven
Colin M. Beale
Suzan Benedick
Jane K. Hill
Barriers to dispersal of rainforest butterflies in tropical agricultural landscapes
description Fragmentation of natural habitats can be detrimental for species if individuals fail to cross habitat boundaries to reach new locations, thereby reducing functional connectivity. Connectivity is crucial for species shifting their ranges under climate change, making it important to understand factors that might prevent movement through human-modified landscapes. In tropical regions, rain forests are being fragmented by agricultural expansion, potentially isolating populations of highly diverse forest-dependent species. The likelihood of crossing habitat boundaries is an important determinant of species dispersal through fragmented landscapes, and so we examined movement across rain forest-oil palm plantation boundaries on Borneo by using relatively mobile nymphalid butterflies as our model study taxon. We marked 1666 individuals from 65 species, and 19 percent (100/527) of recaptured individuals crossed the boundary. Boundary crossing was relatively frequent in some species, and net movement of individuals was from forest into plantation. However, boundary crossing from forest into plantation was detected in less than 50 percent (12/28) of recaptured species and was dominated by small-sized butterfly species whose larval host plants occurred within plantations. Thus, while oil palm plantations may be relatively permeable to some species, they may act as barriers to the movement of forest-dependent species (i.e., species that require rain forest habitat to breed), highlighting the importance of maintaining forest connectivity for conserving rain forest species.
format Article
author Sarah A. Scriven
Colin M. Beale
Suzan Benedick
Jane K. Hill
author_facet Sarah A. Scriven
Colin M. Beale
Suzan Benedick
Jane K. Hill
author_sort Sarah A. Scriven
title Barriers to dispersal of rainforest butterflies in tropical agricultural landscapes
title_short Barriers to dispersal of rainforest butterflies in tropical agricultural landscapes
title_full Barriers to dispersal of rainforest butterflies in tropical agricultural landscapes
title_fullStr Barriers to dispersal of rainforest butterflies in tropical agricultural landscapes
title_full_unstemmed Barriers to dispersal of rainforest butterflies in tropical agricultural landscapes
title_sort barriers to dispersal of rainforest butterflies in tropical agricultural landscapes
publisher John Wiley & Sons
publishDate 2016
url https://eprints.ums.edu.my/id/eprint/30983/1/Barriers%20to%20dispersal%20of%20rainforest%20butterflies%20in%20tropical%20agricultural%20landscapes-ABSTRACT.pdf
https://eprints.ums.edu.my/id/eprint/30983/2/Barriers%20to%20dispersal%20of%20rainforest%20butterflies%20in%20tropical%20agricultural%20landscapes.pdf
https://eprints.ums.edu.my/id/eprint/30983/
https://www.researchgate.net/publication/310573642_Barriers_to_dispersal_of_rain_forest_butterflies_in_tropical_agricultural_landscapes
http://doi.org/10.1111/btp.12397
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score 13.211869

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