Dear colleagues, I thought you might be interested in our recently published article in Ecological Indicators. Giménez, J., Cañadas, A., Ramírez, F., Afán, I., García-Tiscar, S., Fernández-Maldonado, C., Castillo, J.J. & de Stephanis, R. (2018). Living apart together: Niche partitioning among Alboran Sea cetaceans. *Ecological Indicators*, *95*, 32-40. Abstract Co-occurring species are expected to distribute themselves unevenly throughout ecological niche dimensions to avoid competitive exclusion. However, few studies have previously investigated spatial and trophic factors structuring an entire cetaceancommunity. Here, we combined density surface models (DSMs) with two dimension (*δ*15N and *δ*13C) isotopic niche spaces in order to identify the mechanistic processes underlying niche partitioning for the most abundant cetacean species inhabiting the Alboran Sea: the long-finned pilot whale (*Globicephala melas*), the Cuvier’s beaked whale (*Ziphius cavirostris*), the Risso’s dolphin (*Grampus griseus*), the bottlenose dolphin (*Tursi ops truncatus*), the striped dolphin ( *Stenella* coeruleoalba), and the short-beaked common dolphin (*Delphinus delphis*). DSMs provide a spatially-explicit assessment of species distribution through key spatial and environmental gradients, whereas isotopic niches characterize habitat and resource use. Our isotopic niche approach pointed to habitat and/or trophic segregation between the small (striped and short-beaked common dolphins) and large-sized cetacean species (Risso’s and bottlenose dolphins, and long-finned pilot whales). Conversely, DSMs suggested a larger degree of spatial segregation among species by depth, with some overlap for offshore species (long-finned pilot, Cuvier’s beaked whales and Risso’s dolphins) and also between bottlenose and common dolphins. Thus, both components of the ecological niche apparently played an important role in explaining niche partitioning among species, which, in turn, might explain the high abundance and diversity of cetaceans in the Alboran Sea. Further, when both methodologies were applied in isolation, the structure and functioning of this cetacean community was poorly resolved. The combination of both approaches is therefore desirable when investigating niche partitioning among ecologically similar species within communities. Direct publication link: https://www.sciencedirect.com/science/article/pii/S1470160X18305417 Research Gate link: https://www.researchgate.net/publication/326606200_Living_ apart_together_Niche_partitioning_among_Alboran_Sea_cetaceans Best wishes, Joan -- *Joan Giménez, PhD* Estación Biológica de Doñana (EBD-CSIC) Department of Conservation Biology Americo Vespucio Ave, s/n 41092 Sevilla (Spain) www.ebd.csic.es --- Personal website: http://gimenezverdugo.wixsite.com/joangimenez Research Gate: Joan Giménez <https://www.researchgate.net/profile/Joan_Gimenez2> Phone: +34 619 176 849 ü Please consider the environment before printing this E-mail