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Lorenzo Bramanti - One of the best experts on this subject based on the ideXlab platform.

  • Survive or swim: different relationships between Migration Potential and larval size in three sympatric Mediterranean octocorals
    Scientific Reports, 2020
    Co-Authors: Katell Guizien, Nuria Viladrich, A. Martínez-quintana, Lorenzo Bramanti
    Abstract:

    Knowledge about Migration Potential is key to forecasting species distributions in changing environments. For many marine benthic invertebrates, Migration happens during reproduction because of larval dispersal. The present study aims to test whether larval size can be used as a surrogate for Migration Potential arising from larval longevity, competence, sinking, or swimming behavior. The hypothesis was tested using larvae of three sympatric gorgonian species that release brooded lecithotrophic larvae in the same season: Paramuricea clavata, Corallium rubrum and Eunicella singularis. Despite different fecundities and larval sizes, the median larval longevity was similar among the three species. Free-fall speed increased with larval size. Nevertheless, the only net sinkers were the P. clavata larvae, as swimming was more common than free fall in the other two species with larger larvae. For the other two species, swimming activity frequency decreased as larval size increased. Interestingly, maximum larval longevity was lowest for the most active but intermediately sized larvae. Larval size did not covary consistently with any larval traits of the three species when considered individually. We thus advise not using larval size as a surrogate for Migration Potential in distribution models. The three species exemplified that different mechanisms, i.e., swimming activity or larval longevity, resulting from a trade-off in the use of energy reserves can facilitate Migration, regardless of life history strategy. Forecasting the impact of climate change on biodiversity requires mechanistic models similar to those used for climate change predictions (IPBES 2030 work program, https ://ipbes .net/o4-suppo rting-polic y). Species, habitat or niche models should incorporate the mechanisms regulating species spatial distributions to project future changes in biodiversity and species richness. Since Darwin's early observations, the ecological niche concept has been key to explaining the spatial distribution of species under selection pressures that arise from the environment and interactions between species 1,2. The concept postulates that each species should have a unique set of conditions defining its persistence. Correlative approaches linking species occurrence data with environmental descriptors have been extensively applied to infer species niches and to project species spatial distributions (reviewed in 3). However, correlative approaches might fail to predict changes in species spatial distributions when environmental conditions evolve more rapidly than the species can cope with 4. Indeed, when local environmental conditions change, a species' persistence will depend on its ability to track suitable conditions for existence through Migration and/or to adapt locally 5. Trait-based mechanistic models explicitly include Migration processes through a Migration parameter, i.e., expansion distance per unit time (meta-population 6 ; meta-community 7). However, spatiotemporal mechanistic models are still limited in their application due to knowledge gaps in Migration parameters 8. For sessile species OPEN

  • Survive or swim: different relationships between Migration Potential and larval size in three sympatric Mediterranean octocorals.
    Scientific reports, 2020
    Co-Authors: Katell Guizien, Nuria Viladrich, A. Martínez-quintana, Lorenzo Bramanti
    Abstract:

    Knowledge about Migration Potential is key to forecasting species distributions in changing environments. For many marine benthic invertebrates, Migration happens during reproduction because of larval dispersal. The present study aims to test whether larval size can be used as a surrogate for Migration Potential arising from larval longevity, competence, sinking, or swimming behavior. The hypothesis was tested using larvae of three sympatric gorgonian species that release brooded lecithotrophic larvae in the same season: Paramuricea clavata, Corallium rubrum and Eunicella singularis. Despite different fecundities and larval sizes, the median larval longevity was similar among the three species. Free-fall speed increased with larval size. Nevertheless, the only net sinkers were the P. clavata larvae, as swimming was more common than free fall in the other two species with larger larvae. For the other two species, swimming activity frequency decreased as larval size increased. Interestingly, maximum larval longevity was lowest for the most active but intermediately sized larvae. Larval size did not covary consistently with any larval traits of the three species when considered individually. We thus advise not using larval size as a surrogate for Migration Potential in distribution models. The three species exemplified that different mechanisms, i.e., swimming activity or larval longevity, resulting from a trade-off in the use of energy reserves can facilitate Migration, regardless of life history strategy.

Farid Dahdouhguebas - One of the best experts on this subject based on the ideXlab platform.

  • mangroves facing climate change landward Migration Potential in response to projected scenarios of sea level rise
    Biogeosciences, 2014
    Co-Authors: Diana Di Nitto, Griet Neukermans, Nico Koedam, Helen Defever, Frank Pattyn, James Gitundu Kairo, Farid Dahdouhguebas
    Abstract:

    Mangrove forests prominently occupy an intertidal boundary position where the effects of sea level rise will be fast and well visible. This study in East Africa (Gazi Bay, Kenya) addresses the question of whether mangroves can be resilient to a rise in sea level by focusing on their Potential to migrate towards landward areas. The combinatory analy- sis between remote sensing, DGPS-based ground truth and digital terrain models (DTM) unveils how real vegetation assemblages can shift under different projected (minimum (+ 9 cm), relative (+ 20 cm), average (+ 48 cm) and maxi- mum (+ 88 cm)) scenarios of sea level rise (SLR). Under SLR scenarios up to 48 cm by the year 2100, the landward extension remarkably implies an area increase for each of the dominant mangrove assemblages except for Avicennia ma- rina and Ceriops tagal, both on the landward side. On the one hand, the increase in most species in the first three scenar- ios, including the socio-economically most important species in this area, Rhizophora mucronataand C. tagal on the sea- ward side, strongly depends on the colonisation rate of these species. On the other hand, a SLR scenario of + 88 cm by the year 2100 indicates that the area flooded only by equinoctial tides strongly decreases due to the topographical settings at the edge of the inhabited area. Consequently, the landward Avicennia-dominated assemblages will further decrease as a formation if they fail to adapt to a more frequent inundation. The topography is site-specific; however non-invadable areas can be typical for many mangrove settings.

Katell Guizien - One of the best experts on this subject based on the ideXlab platform.

  • Survive or swim: different relationships between Migration Potential and larval size in three sympatric Mediterranean octocorals
    Scientific Reports, 2020
    Co-Authors: Katell Guizien, Nuria Viladrich, A. Martínez-quintana, Lorenzo Bramanti
    Abstract:

    Knowledge about Migration Potential is key to forecasting species distributions in changing environments. For many marine benthic invertebrates, Migration happens during reproduction because of larval dispersal. The present study aims to test whether larval size can be used as a surrogate for Migration Potential arising from larval longevity, competence, sinking, or swimming behavior. The hypothesis was tested using larvae of three sympatric gorgonian species that release brooded lecithotrophic larvae in the same season: Paramuricea clavata, Corallium rubrum and Eunicella singularis. Despite different fecundities and larval sizes, the median larval longevity was similar among the three species. Free-fall speed increased with larval size. Nevertheless, the only net sinkers were the P. clavata larvae, as swimming was more common than free fall in the other two species with larger larvae. For the other two species, swimming activity frequency decreased as larval size increased. Interestingly, maximum larval longevity was lowest for the most active but intermediately sized larvae. Larval size did not covary consistently with any larval traits of the three species when considered individually. We thus advise not using larval size as a surrogate for Migration Potential in distribution models. The three species exemplified that different mechanisms, i.e., swimming activity or larval longevity, resulting from a trade-off in the use of energy reserves can facilitate Migration, regardless of life history strategy. Forecasting the impact of climate change on biodiversity requires mechanistic models similar to those used for climate change predictions (IPBES 2030 work program, https ://ipbes .net/o4-suppo rting-polic y). Species, habitat or niche models should incorporate the mechanisms regulating species spatial distributions to project future changes in biodiversity and species richness. Since Darwin's early observations, the ecological niche concept has been key to explaining the spatial distribution of species under selection pressures that arise from the environment and interactions between species 1,2. The concept postulates that each species should have a unique set of conditions defining its persistence. Correlative approaches linking species occurrence data with environmental descriptors have been extensively applied to infer species niches and to project species spatial distributions (reviewed in 3). However, correlative approaches might fail to predict changes in species spatial distributions when environmental conditions evolve more rapidly than the species can cope with 4. Indeed, when local environmental conditions change, a species' persistence will depend on its ability to track suitable conditions for existence through Migration and/or to adapt locally 5. Trait-based mechanistic models explicitly include Migration processes through a Migration parameter, i.e., expansion distance per unit time (meta-population 6 ; meta-community 7). However, spatiotemporal mechanistic models are still limited in their application due to knowledge gaps in Migration parameters 8. For sessile species OPEN

  • Survive or swim: different relationships between Migration Potential and larval size in three sympatric Mediterranean octocorals.
    Scientific reports, 2020
    Co-Authors: Katell Guizien, Nuria Viladrich, A. Martínez-quintana, Lorenzo Bramanti
    Abstract:

    Knowledge about Migration Potential is key to forecasting species distributions in changing environments. For many marine benthic invertebrates, Migration happens during reproduction because of larval dispersal. The present study aims to test whether larval size can be used as a surrogate for Migration Potential arising from larval longevity, competence, sinking, or swimming behavior. The hypothesis was tested using larvae of three sympatric gorgonian species that release brooded lecithotrophic larvae in the same season: Paramuricea clavata, Corallium rubrum and Eunicella singularis. Despite different fecundities and larval sizes, the median larval longevity was similar among the three species. Free-fall speed increased with larval size. Nevertheless, the only net sinkers were the P. clavata larvae, as swimming was more common than free fall in the other two species with larger larvae. For the other two species, swimming activity frequency decreased as larval size increased. Interestingly, maximum larval longevity was lowest for the most active but intermediately sized larvae. Larval size did not covary consistently with any larval traits of the three species when considered individually. We thus advise not using larval size as a surrogate for Migration Potential in distribution models. The three species exemplified that different mechanisms, i.e., swimming activity or larval longevity, resulting from a trade-off in the use of energy reserves can facilitate Migration, regardless of life history strategy.

A. Martínez-quintana - One of the best experts on this subject based on the ideXlab platform.

  • Survive or swim: different relationships between Migration Potential and larval size in three sympatric Mediterranean octocorals
    Scientific Reports, 2020
    Co-Authors: Katell Guizien, Nuria Viladrich, A. Martínez-quintana, Lorenzo Bramanti
    Abstract:

    Knowledge about Migration Potential is key to forecasting species distributions in changing environments. For many marine benthic invertebrates, Migration happens during reproduction because of larval dispersal. The present study aims to test whether larval size can be used as a surrogate for Migration Potential arising from larval longevity, competence, sinking, or swimming behavior. The hypothesis was tested using larvae of three sympatric gorgonian species that release brooded lecithotrophic larvae in the same season: Paramuricea clavata, Corallium rubrum and Eunicella singularis. Despite different fecundities and larval sizes, the median larval longevity was similar among the three species. Free-fall speed increased with larval size. Nevertheless, the only net sinkers were the P. clavata larvae, as swimming was more common than free fall in the other two species with larger larvae. For the other two species, swimming activity frequency decreased as larval size increased. Interestingly, maximum larval longevity was lowest for the most active but intermediately sized larvae. Larval size did not covary consistently with any larval traits of the three species when considered individually. We thus advise not using larval size as a surrogate for Migration Potential in distribution models. The three species exemplified that different mechanisms, i.e., swimming activity or larval longevity, resulting from a trade-off in the use of energy reserves can facilitate Migration, regardless of life history strategy. Forecasting the impact of climate change on biodiversity requires mechanistic models similar to those used for climate change predictions (IPBES 2030 work program, https ://ipbes .net/o4-suppo rting-polic y). Species, habitat or niche models should incorporate the mechanisms regulating species spatial distributions to project future changes in biodiversity and species richness. Since Darwin's early observations, the ecological niche concept has been key to explaining the spatial distribution of species under selection pressures that arise from the environment and interactions between species 1,2. The concept postulates that each species should have a unique set of conditions defining its persistence. Correlative approaches linking species occurrence data with environmental descriptors have been extensively applied to infer species niches and to project species spatial distributions (reviewed in 3). However, correlative approaches might fail to predict changes in species spatial distributions when environmental conditions evolve more rapidly than the species can cope with 4. Indeed, when local environmental conditions change, a species' persistence will depend on its ability to track suitable conditions for existence through Migration and/or to adapt locally 5. Trait-based mechanistic models explicitly include Migration processes through a Migration parameter, i.e., expansion distance per unit time (meta-population 6 ; meta-community 7). However, spatiotemporal mechanistic models are still limited in their application due to knowledge gaps in Migration parameters 8. For sessile species OPEN

  • Survive or swim: different relationships between Migration Potential and larval size in three sympatric Mediterranean octocorals.
    Scientific reports, 2020
    Co-Authors: Katell Guizien, Nuria Viladrich, A. Martínez-quintana, Lorenzo Bramanti
    Abstract:

    Knowledge about Migration Potential is key to forecasting species distributions in changing environments. For many marine benthic invertebrates, Migration happens during reproduction because of larval dispersal. The present study aims to test whether larval size can be used as a surrogate for Migration Potential arising from larval longevity, competence, sinking, or swimming behavior. The hypothesis was tested using larvae of three sympatric gorgonian species that release brooded lecithotrophic larvae in the same season: Paramuricea clavata, Corallium rubrum and Eunicella singularis. Despite different fecundities and larval sizes, the median larval longevity was similar among the three species. Free-fall speed increased with larval size. Nevertheless, the only net sinkers were the P. clavata larvae, as swimming was more common than free fall in the other two species with larger larvae. For the other two species, swimming activity frequency decreased as larval size increased. Interestingly, maximum larval longevity was lowest for the most active but intermediately sized larvae. Larval size did not covary consistently with any larval traits of the three species when considered individually. We thus advise not using larval size as a surrogate for Migration Potential in distribution models. The three species exemplified that different mechanisms, i.e., swimming activity or larval longevity, resulting from a trade-off in the use of energy reserves can facilitate Migration, regardless of life history strategy.

Nuria Viladrich - One of the best experts on this subject based on the ideXlab platform.

  • Survive or swim: different relationships between Migration Potential and larval size in three sympatric Mediterranean octocorals
    Scientific Reports, 2020
    Co-Authors: Katell Guizien, Nuria Viladrich, A. Martínez-quintana, Lorenzo Bramanti
    Abstract:

    Knowledge about Migration Potential is key to forecasting species distributions in changing environments. For many marine benthic invertebrates, Migration happens during reproduction because of larval dispersal. The present study aims to test whether larval size can be used as a surrogate for Migration Potential arising from larval longevity, competence, sinking, or swimming behavior. The hypothesis was tested using larvae of three sympatric gorgonian species that release brooded lecithotrophic larvae in the same season: Paramuricea clavata, Corallium rubrum and Eunicella singularis. Despite different fecundities and larval sizes, the median larval longevity was similar among the three species. Free-fall speed increased with larval size. Nevertheless, the only net sinkers were the P. clavata larvae, as swimming was more common than free fall in the other two species with larger larvae. For the other two species, swimming activity frequency decreased as larval size increased. Interestingly, maximum larval longevity was lowest for the most active but intermediately sized larvae. Larval size did not covary consistently with any larval traits of the three species when considered individually. We thus advise not using larval size as a surrogate for Migration Potential in distribution models. The three species exemplified that different mechanisms, i.e., swimming activity or larval longevity, resulting from a trade-off in the use of energy reserves can facilitate Migration, regardless of life history strategy. Forecasting the impact of climate change on biodiversity requires mechanistic models similar to those used for climate change predictions (IPBES 2030 work program, https ://ipbes .net/o4-suppo rting-polic y). Species, habitat or niche models should incorporate the mechanisms regulating species spatial distributions to project future changes in biodiversity and species richness. Since Darwin's early observations, the ecological niche concept has been key to explaining the spatial distribution of species under selection pressures that arise from the environment and interactions between species 1,2. The concept postulates that each species should have a unique set of conditions defining its persistence. Correlative approaches linking species occurrence data with environmental descriptors have been extensively applied to infer species niches and to project species spatial distributions (reviewed in 3). However, correlative approaches might fail to predict changes in species spatial distributions when environmental conditions evolve more rapidly than the species can cope with 4. Indeed, when local environmental conditions change, a species' persistence will depend on its ability to track suitable conditions for existence through Migration and/or to adapt locally 5. Trait-based mechanistic models explicitly include Migration processes through a Migration parameter, i.e., expansion distance per unit time (meta-population 6 ; meta-community 7). However, spatiotemporal mechanistic models are still limited in their application due to knowledge gaps in Migration parameters 8. For sessile species OPEN

  • Survive or swim: different relationships between Migration Potential and larval size in three sympatric Mediterranean octocorals.
    Scientific reports, 2020
    Co-Authors: Katell Guizien, Nuria Viladrich, A. Martínez-quintana, Lorenzo Bramanti
    Abstract:

    Knowledge about Migration Potential is key to forecasting species distributions in changing environments. For many marine benthic invertebrates, Migration happens during reproduction because of larval dispersal. The present study aims to test whether larval size can be used as a surrogate for Migration Potential arising from larval longevity, competence, sinking, or swimming behavior. The hypothesis was tested using larvae of three sympatric gorgonian species that release brooded lecithotrophic larvae in the same season: Paramuricea clavata, Corallium rubrum and Eunicella singularis. Despite different fecundities and larval sizes, the median larval longevity was similar among the three species. Free-fall speed increased with larval size. Nevertheless, the only net sinkers were the P. clavata larvae, as swimming was more common than free fall in the other two species with larger larvae. For the other two species, swimming activity frequency decreased as larval size increased. Interestingly, maximum larval longevity was lowest for the most active but intermediately sized larvae. Larval size did not covary consistently with any larval traits of the three species when considered individually. We thus advise not using larval size as a surrogate for Migration Potential in distribution models. The three species exemplified that different mechanisms, i.e., swimming activity or larval longevity, resulting from a trade-off in the use of energy reserves can facilitate Migration, regardless of life history strategy.