Biogeography and macroecology in the Mediterranean Sea: some relevant studies.

Présentation au sujet: "Biogeography and macroecology in the Mediterranean Sea: some relevant studies."— Transcription de la présentation:

1 Biogeography and macroecology in the Mediterranean Sea: some relevant studies

2 Coll, M., Piroddi, C., Steenbeek, J., Kaschner, K., Ben Rais Lasram, F., Aguzzi, J.,... & Voultsiadou, E. (2010). The biodiversity of the Mediterranean Sea: estimates, patterns, and threats. PloS one, 5(8), e11842. A new and complete inventory of biodiversity

3 Coll, M., Piroddi, C., Steenbeek, J., Kaschner, K., Ben Rais Lasram, F., Aguzzi, J.,... & Voultsiadou, E. (2010) The biodiversity of the Mediterranean Sea: estimates, patterns, and threats. 1 High 0 Low

4 Mouillot, D., Albouy, C., Guilhaumon, F., Ben Rais Lasram, F., Coll, M., Devictor, V.,... & Mouquet, N. (2011). Protected and threatened components of fish biodiversity in the Mediterranean Sea. Current Biology, 21(12), 1044-1050. A mapping of taxonomic, functional and phylogenetic fish diversity

5 Mouillot, D., Albouy, C., Guilhaumon, F., Ben Rais Lasram, F., Coll, M., Devictor, V.,... & Mouquet, N. (2011). Protected and threatened components of fish biodiversity in the Mediterranean Sea A. Total species richness B. Endemic species richness C. IUCN species richness D. Phylogenetic species richness E. Functional diversity

6 Cumulative human impacts Micheli, F., Halpern, B. S., Walbridge, S., Ciriaco, S., Ferretti, F., Fraschetti, S.,... & Rosenberg, A. A. (2013). Cumulative human impacts on Mediterranean and Black Sea marine ecosystems: assessing current pressures and opportunities. PloS one, 8(12), e79889.

7 Micheli, F., Halpern, B. S., Walbridge, S., Ciriaco, S., Ferretti, F., Fraschetti, S.,... & Rosenberg, A. A. (2013). Cumulative human impacts on Mediterranean and Black Sea marine ecosystems: assessing current pressures and opportunities.

8 Coll, M., Piroddi, C., Albouy, C., Ben Rais Lasram, F., Cheung, W. W., Christensen, V.,... & Pauly, D. (2012). The Mediterranean Sea under siege: spatial overlap between marine biodiversity, cumulative threats and marine reserves. Global Ecology and Biogeography, 21(4), 465-480. An assessment of biodiversity vulnerability

9 Coll, M., Piroddi, C., Albouy, C., Ben Rais Lasram, F., Cheung, W. W., Christensen, V.,... & Pauly, D. (2012). The Mediterranean Sea under siege: spatial overlap between marine biodiversity, cumulative threats and marine reserves Identification of areas of conservation concern for biodiversity in the Mediterranean Sea, where high diversity and high threat overlap for: (a) commercial or well- documented invertebrate species, (b) fish species, (c) marine mammals and turtles, (d) seabirds, and (e) large predators (including large fish, marine mammals, turtles and seabirds). The overlap index (OI) indicates areas where both species diversity and intensity of cumulative threats were < 25% (< OI ), 25% (OI ), 50% (OI ) and 25 25 50 75% (OI ). Black circles indicate where 75 values of OI occur.

10 Hiddink, J. G., Ben Rais Lasram, F., Cantrill, J., & Davies, A. J. (2012). Keeping pace with climate change: what can we learn from the spread of Lessepsian migrants?. Global Change Biology, 18(7), 2161-2172. Invasions in the Mediterranean Sea as reference of maximum species spread.

11 Example of the estimation of the spread rate of the fish Atherinomorus lacunosus. (a) Distribution records. The first record of this species in the Mediterranean was in 1902 close to the Suez Canal. The species then spread north and west and was recorded in Tunisia in 2005. (b) Estimation of the spread rate. Solid line distances are the distance from each record to the first record in 1902 without crossing land, as indicated by the solid lines in (a). Dashed line distances are the distance from each record to the first record in 1902 without crossing land and staying on the continental shelf where possible, as indicated by the dashed lines in (a). The regression line shows the 80% quantile regression, which tracks the upper boundary of the data points and therefore the ‘invasion front’ and estimates the spread rate of this species as 18.5 km/y (straight line, solid points, solid line) and 21.5 km/y 21.5 km yr (over continental shelf, open points, dashed line). J.G. HIDDINK, F. BEN RAIS LASRAM, J.CANTRILL and A.J.DAVIE (2012) Keeping pace with climate change: what can we learn from the spread of Lessepsian migrants?

12 Alien species diversity patterns Hiddink, J. G., Ben Rais Lasram, F., Cantrill, J., & Davies, A. J. (2012). Keeping pace with climate change: what can we learn from the spread of Lessepsian migrants?. Global Change Biology, 18(7), 2161-2172.

13 Richness (number of species in a 10 × 10km grid) of alien fish, invertebrates, and macrophytes in the Mediterranean Sea. The pie charts depict the relative importance of the three main pathways for each taxonomic group Hiddink, J. G., Ben Rais Lasram, F., Cantrill, J., & Davies, A. J. (2012). Keeping pace with climate change: what can we learn from the spread of Lessepsian migrants?

14 Alien species and MPA Giakoumi, S., Guilhaumon, F., Kark, S., Terlizzi, A., Claudet, J., Felline, S.,... & Katsanevakis, S. (2016). Space invaders; biological invasions in marine conservation planning. Diversity and Distributions, 22(12), 1220-1231.

15 Fish species case study (data from Guilhaumon et al., 2015). Difference in planning unit (12 828 cells, 10 x 10 km) selection frequency, from MARXAN outputs, when following the different approaches: (a) ‘ignore’ versus ‘protect’, (b) ‘ignore’ versus ‘avoid’ and (c) ‘avoid’ versus ‘protect’. Planning units in red are those with a higher selection frequency in the ‘ignore’ scenario, in orange those with higher selection in the ‘protect’ scenario and in blue those with higher selection in the ‘avoid’ scenario. Planning units are black if they had maximum selection frequency (1000) in all three scenarios. Giakoumi, S., Guilhaumon, F., Kark, S., Terlizzi, A., Claudet, J., Felline, S.,... & Katsanevakis, S. (2016). Space invaders; biological invasions in marine conservation planning?

16 Distribution areas projections of fish species in a context of global warming Ben Rais Lasram, F., Guilhaumon, F., Albouy, C., Somot, S., Thuiller, W., & Mouillot, D. (2010). The Mediterranean Sea as a ‘cul‐de‐sac’for endemic fishes facing climate change. Global Change Biology, 16(12), 3233-3245. Albouy, C., Guilhaumon, F., Leprieur, F., Ben Rais Lasram, F., Somot, S., Aznar, R.,... & Mouillot, D. (2013). Projected climate change and the changing biogeography of coastal Mediterranean fishes. Journal of Biogeography, 40(3), 534-547.

17 Observed distribution areas of endemic Mediterranean Sea fish species (1980s) and projected potential future thermal habitats (by 2040–2060 and 2070–2099) with a model-averaging approach. Ben Rais Lasram, F., Guilhaumon, F., Albouy, C., Somot, S., Thuiller, W., & Mouillot, D. (2010). The Mediterranean Sea as a ‘cul‐de‐sac’ for endemic fishes facing climate change.

18 Net differences in fish species richness between the baseline scenario (1961–80) and two time periods (2040–59, left column; 2080–99, right column) predicted for the continental shelf of the Mediterranean Sea according to the A2 scenario implemented in the NEMOMED8 climatic model. Albouy, C., Guilhaumon, F., Leprieur, F., Ben Rais Lasram, F., Somot, S., Aznar, R.,... & Mouillot, D. (2013). Projected climate change and the changing biogeography of coastal Mediterranean fishes.