Partitioning the temporal changes in abundance‐based beta diversity into loss and gain components

Abstract

Beta diversity, the variation in the identities and abundances of species among sites, is a fundamental facet of biodiversity (Anderson et al., 2011;Koleff et al., 2003;Whittaker, 1960). Beta diversity can be quantified in two ways, namely using incidence-based (i.e. presence-absence-based) and abundance-based approaches

Long‐term changes in macroinvertebrate communities across high‐latitude streams

“…We also calculated the change in beta‐diversity ( β div ) between streams for pairwise comparisons of years (e.g. 1994–1995, 2002–2003) using the ‘ ecopart.multi ’ function in the package ‘ ecopart ’ (Tatsumi et al, 2022). This method partitions the change in β div (Δ β div ) into components, reflecting either homogenisation (decrease in β div ) or differentiation (increase in β div ) through species gains and losses.…”

Isolation drives species gains and losses of insect metacommunities over time in a mountaintop forest archipelago

“…To further advance in this topic, we recommend the continuity of sampling of insect groups in the studied system, as is already being done by the Long-Term Research Project in the Campos Rupestres of Serra do Cipó (https://sites.icb.ufmg.br/leeb/peld/), aiming to generate long-term trends of insect responses to both natural and human-induced disturbances. We also recommend assessing the patterns found using other community metrics, such as abundance (Tatsumi et al, 2022) and other ecologically relevant traits (Streit & Bellwood, 2023). Similarly, further understanding of the "new" or "hidden" species interactions (Barbosa et al, 2023) and phylogenetic relationships in these changed communities can help prevent or buffer biotic homogenisation processes (Rivera et al, 2023).…”

“…Temporal changes in species composition (i.e. temporal β‐diversity) are a directional process, represented by gains or losses of individuals or species (Legendre, 2019; Tatsumi et al, 2022). These gains and losses can be seen respectively as colonisation (or local immigration) and extirpation (or local extinctions) processes within a community over time (Tatsumi et al, 2020).…”

Response and resilience of karst subterranean estuary communities to precipitation impacts

“…Extirpation-colonization analyses performed pairwise comparisons of specific densities at two different times and then partition the total Δβ changes due to extirpation (i.e., local extinction) and colonization (Tatsumi et al, 2021(Tatsumi et al, , 2022. These analyses were performed in R (R Core Team, 2021) with the vegan v2.5-7 package (Oksanen et al, 2014) for nMDS and the ECOPART v0.2.0 (Tatsumi et al, 2022) package for the extirpationcolonization analysis.…”

“…The community and species-specific response to the mortality event for all the sites, independently of the cave, through a non-metric multidimensional scaling analysis (nMDS). Temporal changes in beta diversity (Δβ) were quantified with an extirpation-colonization analysis (Tatsumi et al, 2021(Tatsumi et al, , 2022.…”