Selective extinction drives taxonomic and functional alpha and beta diversities in island bird assemblages

Si, Xingfeng; Baselga, Andrés; Leprieur, Fabien; Song, Xin; Ding, Ping

doi:10.1111/1365-2656.12478

Cited by 135 publications

(154 citation statements)

References 49 publications

Supporting

Mentioning

139

Contrasting

Order By: Relevance

“…That said, when taken as a whole these results suggest that patch area may be a more significant factor in community assembly than patch isolation in this system. Ongoing research is underway to dissect the specific mechanisms by which this process occurs (e.g., Hu et al 2015;Si et al 2015b).…”

Section: The Role Of Fragmentation Experimentsmentioning

confidence: 99%

Habitat fragmentation and biodiversity conservation: key findings and future challenges

et al. 2015

Self Cite

View full text Add to dashboard Cite

Section: The Role Of Fragmentation Experimentsmentioning

confidence: 99%

Habitat fragmentation and biodiversity conservation: key findings and future challenges

et al. 2015

Self Cite

View full text Add to dashboard Cite

“…Simultaneously analyzing taxonomic and functional alpha and beta diversities allowed us to interpret the responses of generalist and dissimilarity in the composition of species and traits throughout forest types (see Si, Baselga, Leprieur, Song, & Ding, 2016). Specifically, this approach provides important insights on whether variation in species richness reflects a reduction in the diversity of traits that could affect ecosystem functionality (Dıáz & Cabido, 2001;Cadotte, Carscadden, & Mirotchnick, 2011).…”

Section: Discussionmentioning

confidence: 99%

Insights on the functional composition of specialist and generalist birds throughout continuous and fragmented forests

Anjos

Bochio

Medeiros

et al. 2019

Ecology and Evolution

View full text Add to dashboard Cite

A decline in species number often occurs after forest fragmentation and habitat loss, which usually results in the loss of ecological functions and a reduction in functional diversity in the forest fragments. However, it is uncertain whether these lost ecological functions are consistently maintained throughout continuous forests, and so the importance of these functions in continuous forests remains unknown. Point counts were used to assess both the taxonomic and functional diversity of specialist and generalist birds from sampling in a continuous primary forest compared with forest fragments in order to investigate the responses of these groups to forest fragmentation. We also measured alpha and beta diversity. The responses of specialists and generalists were similar when we assessed all bird species but were different when only passerines were considered. When examining passerines we found lower total taxonomic beta diversity for specialists than for generalists in the continuous forest, while taxonomic beta diversity was higher in the fragmented forest and similar between bird groups. However, total functional beta‐diversity values indicated clearly higher trait regularity in continuous forest for specialists and higher trait regularity in fragments for generalists. Specialists showed significantly higher functional alpha diversity in comparison with generalists in the continuous forest, while both groups showed similar values in fragments. In passerines, species richness and alpha functional diversity of both specialist and generalist were explained by forest connectivity; but, only fragment size explained those parameters for specialist passerines. We suggest that considering subsets of the community with high similarity among species, as passerines, provides a better tool for understanding responses to forest fragmentation. Due to the regularity of specialists in continuous forest, their lost could highly affect functionality in forest fragments.

show abstract

“…; Si et al . ). Despite a half century of research on TIB and its applications to understanding habitat loss and fragmentation (Warren et al .…”

Section: Introductionmentioning

confidence: 97%

“…Consequently, only subsets of species sharing similar functional traits can persist or outcompete other species on small islands (Si et al . ), resulting in a higher degree of ecological similarity on small islands (i.e. appearing functionally or phylogenetically clustered).…”

Section: Introductionmentioning

confidence: 99%

Functional and phylogenetic structure of island bird communities

Cadotte

Zeng

et al. 2017

Journal of Animal Ecology

Self Cite

118

View full text Add to dashboard Cite

Biodiversity change in anthropogenically transformed habitats is often nonrandom, yet the nature and importance of the different mechanisms shaping community structure are unclear. Here, we extend the classic Theory of Island Biogeography (TIB) to account for nonrandom processes by incorporating species traits and phylogenetic relationships into a study of faunal relaxation following habitat loss and fragmentation. Two possible mechanisms can create nonrandom community patterns on fragment islands. First, small and isolated islands might consist of similar or closely related species because they are environmentally homogeneous or select for certain shared traits, such as dispersal ability. Alternatively, communities on small islands might contain more dissimilar or distantly related species than on large islands because limited space and resource availability result in greater competitive exclusion among species with high niche overlap. Breeding birds were surveyed on 36 islands and two mainland sites annually from 2010 to 2014 in the Thousand Island Lake region, China. We assessed community structure of breeding birds on these subtropical land-bridge islands by integrating species' trait and evolutionary distances. We additionally analysed habitat heterogeneity and variance in size ratios to distinguish biotic and abiotic processes of community assembly. Results showed that functional-phylogenetic diversity increased with island area, and decreased with isolation. Bird communities on the mainland were more diverse and generally less clustered than island bird communities and not different than randomly assembled communities. Bird communities on islands tend to be functionally similar and phylogenetically clustered, especially on small and isolated islands. The nonrandom decline in species diversity and change in bird community structure with island area and isolation, along with the relatively homogeneous habitats on small islands, support the environmental filtering hypothesis. Our study demonstrates the importance of integrating multiple forms of diversity for understanding the effects of habitat loss and fragmentation, and further reveals that TIB could be extended to community measures by moving beyond assumptions of species equivalency in colonisation rates and extinction susceptibilities.

show abstract

Selective extinction drives taxonomic and functional alpha and beta diversities in island bird assemblages

Cited by 135 publications

References 49 publications

Habitat fragmentation and biodiversity conservation: key findings and future challenges

Habitat fragmentation and biodiversity conservation: key findings and future challenges

Insights on the functional composition of specialist and generalist birds throughout continuous and fragmented forests

Functional and phylogenetic structure of island bird communities

Contact Info

Product

Resources

About