@article{fdi:010088716, title = {{I}dentifying community assembling zones and connectivity pathways in the {T}ropical {S}outhwestern {A}tlantic {O}cean}, author = {{T}osetto, {E}. {G}. and {L}ett, {C}hristophe and {K}och {L}arrouy, {A}riane and da {S}ilva, {A}. {C}. and {N}eumann-{L}eitao, {S}. and {N}ogueira, {M}. {N}. and {B}arrier, {N}icolas and {D}ossa, {A}. {N}. and {T}chilibou, {M}. and {B}auchot, {P}. and {M}orvan, {G}uillaume and {B}ertrand, {A}rnaud}, editor = {}, language = {{ENG}}, abstract = {{D}ispersal is more intense in the ocean than on land because most marine taxa present planktonic life stages that are transported by currents even without specific morphological traits. {T}hus, species dispersal shapes the distribution of biodiversity along seascapes and drives the composition of biodiversity assemblages. {T}o identify marine assembling zones which characterise spatial areas particularly prone to receive and retain similar animal assemblages from the regional pool of species through passive dispersal, we propose a community-based approach grounded on {L}agrangian simulations of plankton dispersal. {T}his novel approach was applied to communities (coast, outer shelf, slope, seamounts and islands; 0-80 m depth) of the {T}ropical {S}outhwestern {A}tlantic and used to assess connectivity pathways. {F}or that, we classified the modelled particles in 15 categories according to biological traits (planktonic life duration and spawning habitat) of representative planktonic communities. {F}rom the hierarchical clustering of the multivariate matrix containing the amount of arriving particles from each category in each cell we defined 14 assembling zones. {R}esults highlighted that the assembling zones were mostly shaped by the degree of exposure to currents and the presence of mesoscale features (eddies, recirculation) derived from the interaction between these currents and coastlines. {T}he boundaries, dispersal and connectivity patterns of these zones consistently align with local and regional in situ spatial distribution and abundance patterns of organisms, and provide an appropriate basis for the formulation of ecological hypotheses in the metacommunity framework to be tested in situ, such as the balance between species sorting and mass effect assembling archetypes. {T}his approach, when coupled with the knowledge of other processes shaping communities' structure and distribution, provides important insights for regions and animal groups for which knowledge is limited or absent, and more generally allows for a comprehensive overview of the distribution of distinct communities and connectivity pathways along marine environments.}, keywords = {community assembly ; landscape ecology ; mass effect ; metacommunity ; northeastern {B}razil ; species sorting ; {ATLANTIQUE} ; {BRESIL} ; {ZONE} {TROPICALE}}, booktitle = {}, journal = {{E}cography}, volume = {[{E}arly access]}, numero = {}, pages = {[17 ]}, ISSN = {0906-7590}, year = {2023}, DOI = {10.1111/ecog.07110}, URL = {https://www.documentation.ird.fr/hor/fdi:010088716}, }