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Season-specific and guild-specific effects of anthropogenic landscape modification on metacommunity structure of tropical bats.
J Anim Ecol 2015; 84(2):373-85JA

Abstract

Fragmentation per se due to human land conversion is a landscape-scale phenomenon. Accordingly, assessment of distributional patterns across a suite of potentially connected communities (i.e. metacommunity structure) is an appropriate approach for understanding the effects of landscape modification and complements the plethora of fragmentation studies that have focused on local community structure. To date, metacommunity structure within human-modified landscapes has been assessed with regard to nestedness along species richness gradients. This is problematic because there is little support that species richness gradients are associated with the factors moulding species distributions. More importantly, many alternative patterns are possible, and different patterns may manifest during different seasons and for different guilds because of variation in resource availability and resource requirements of taxa. We determined the best-fit metacommunity structure of a phyllostomid bat assemblage, frugivore ensemble, and gleaning animalivore ensemble within a human-modified landscape in the Caribbean lowlands of Costa Rica during the dry and wet seasons to elucidate important structuring mechanisms. Furthermore, we identified the landscape characteristics associated with the latent gradient underlying metacommunity structure. We discriminated among multiple metacommunity structures by assessing coherence, range turnover, and boundary clumping of an ordinated site-by-species matrix. We identified the landscape characteristics associated with the latent gradient underlying metacommunity structure via hierarchical partitioning. Metacommunity structure was never nested nor structured along a richness gradient. The phyllostomid assemblage and frugivore ensemble exhibited Gleasonian structure (range turnover along a common gradient) during the dry season and Clementsian structure (range turnover and shared boundaries along a common gradient) during the wet season. Distance between forest patches and forest edge density structured the phyllostomid metacommunity during the dry and wet seasons, respectively. Proportion of pasture and forest patch density structured the frugivore metacommunity during the dry season. Gleaning animalivores exhibited chequerboard structure (mutually exclusive species pairs) during the dry season and random structure during the wet season. Metacommunity structure was likely mediated by differential resource use or interspecific relationships. Furthermore, the interaction between landscape characteristics and seasonal variation in resources resulted in season-specific and guild-specific distributional patterns.

Authors+Show Affiliations

Department of Ecology and Evolutionary Biology, University of Connecticut, 75 North Eagleville Road, Storrs, CT, 06269-3043, USA. Center for Environmental Sciences and Engineering, University of Connecticut, 3107 Horsebarn Hill Road, Storrs, CT, 06269-4210, USA.Department of Ecology, Evolution, and Environmental Biology, Columbia University, 1200 Amsterdam Avenue, New York, NY, 10027, USA.Department of Ecology and Evolutionary Biology, University of Connecticut, 75 North Eagleville Road, Storrs, CT, 06269-3043, USA. Center for Environmental Sciences and Engineering, University of Connecticut, 3107 Horsebarn Hill Road, Storrs, CT, 06269-4210, USA.

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

25283305

Citation

Cisneros, Laura M., et al. "Season-specific and Guild-specific Effects of Anthropogenic Landscape Modification On Metacommunity Structure of Tropical Bats." The Journal of Animal Ecology, vol. 84, no. 2, 2015, pp. 373-85.
Cisneros LM, Fagan ME, Willig MR. Season-specific and guild-specific effects of anthropogenic landscape modification on metacommunity structure of tropical bats. J Anim Ecol. 2015;84(2):373-85.
Cisneros, L. M., Fagan, M. E., & Willig, M. R. (2015). Season-specific and guild-specific effects of anthropogenic landscape modification on metacommunity structure of tropical bats. The Journal of Animal Ecology, 84(2), pp. 373-85. doi:10.1111/1365-2656.12299.
Cisneros LM, Fagan ME, Willig MR. Season-specific and Guild-specific Effects of Anthropogenic Landscape Modification On Metacommunity Structure of Tropical Bats. J Anim Ecol. 2015;84(2):373-85. PubMed PMID: 25283305.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Season-specific and guild-specific effects of anthropogenic landscape modification on metacommunity structure of tropical bats. AU - Cisneros,Laura M, AU - Fagan,Matthew E, AU - Willig,Michael R, Y1 - 2014/10/20/ PY - 2014/03/14/received PY - 2014/09/26/accepted PY - 2014/10/7/entrez PY - 2014/10/7/pubmed PY - 2016/4/14/medline KW - Chiroptera KW - Costa Rica KW - forest loss KW - fragmentation KW - interspecific competition KW - niche trade‐offs KW - range turnover KW - species distribution KW - temporal dynamics KW - tropical wet forest SP - 373 EP - 85 JF - The Journal of animal ecology JO - J Anim Ecol VL - 84 IS - 2 N2 - Fragmentation per se due to human land conversion is a landscape-scale phenomenon. Accordingly, assessment of distributional patterns across a suite of potentially connected communities (i.e. metacommunity structure) is an appropriate approach for understanding the effects of landscape modification and complements the plethora of fragmentation studies that have focused on local community structure. To date, metacommunity structure within human-modified landscapes has been assessed with regard to nestedness along species richness gradients. This is problematic because there is little support that species richness gradients are associated with the factors moulding species distributions. More importantly, many alternative patterns are possible, and different patterns may manifest during different seasons and for different guilds because of variation in resource availability and resource requirements of taxa. We determined the best-fit metacommunity structure of a phyllostomid bat assemblage, frugivore ensemble, and gleaning animalivore ensemble within a human-modified landscape in the Caribbean lowlands of Costa Rica during the dry and wet seasons to elucidate important structuring mechanisms. Furthermore, we identified the landscape characteristics associated with the latent gradient underlying metacommunity structure. We discriminated among multiple metacommunity structures by assessing coherence, range turnover, and boundary clumping of an ordinated site-by-species matrix. We identified the landscape characteristics associated with the latent gradient underlying metacommunity structure via hierarchical partitioning. Metacommunity structure was never nested nor structured along a richness gradient. The phyllostomid assemblage and frugivore ensemble exhibited Gleasonian structure (range turnover along a common gradient) during the dry season and Clementsian structure (range turnover and shared boundaries along a common gradient) during the wet season. Distance between forest patches and forest edge density structured the phyllostomid metacommunity during the dry and wet seasons, respectively. Proportion of pasture and forest patch density structured the frugivore metacommunity during the dry season. Gleaning animalivores exhibited chequerboard structure (mutually exclusive species pairs) during the dry season and random structure during the wet season. Metacommunity structure was likely mediated by differential resource use or interspecific relationships. Furthermore, the interaction between landscape characteristics and seasonal variation in resources resulted in season-specific and guild-specific distributional patterns. SN - 1365-2656 UR - https://www.unboundmedicine.com/medline/citation/25283305/Season_specific_and_guild_specific_effects_of_anthropogenic_landscape_modification_on_metacommunity_structure_of_tropical_bats_ L2 - https://doi.org/10.1111/1365-2656.12299 DB - PRIME DP - Unbound Medicine ER -