Endemism and evolutionary history in conflict over Madagascar’s freshwater conservation priorities

Isambert, B.; Bergsten, Johannes; Monaghan, Michael T.; Andriamizehy, H.; Ranarilalatiana, Tolotra; Ratsimbazafy, Mirana K; Andriniainimanana, J.R.; Vogler, Alfried P.

doi:10.1016/j.biocon.2011.04.016

Cited by 30 publications

(32 citation statements)

References 47 publications

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“…An 825 base pair region from the 3 0 end of mitochondrial cytochrome oxidase I was amplified with primers Jerry 27 , Ron Inosine, Ron Dyt, Patty, and Pat Dyt 28 . Amplification conditions used with Bioline Taq were 94°C for 2 min, 35-40 cycles of 94°C for 30 s, 53°C for 60 s and 70°C for 120 s, and a final extension of 70°C for 10 min.…”

Section: Methodsmentioning

confidence: 99%

Whole-community DNA barcoding reveals a spatio-temporal continuum of biodiversity at species and genetic levels

et al. 2013

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A correlation of species and genetic diversity has been proposed but not uniformly supported. Large-scale DNA barcoding provides qualitatively novel data to test for correlations across hierarchical levels (genes, genealogies and species), and may help to unveil the underlying processes. Here we analyse sequence variation in communities of aquatic beetles across Europe (45,000 individuals) to test for self-similarity of beta diversity patterns at multiple hierarchical levels. We show that community similarity at all levels decreases exponentially with geographic distance, and initial similarity is correlated with the lineage age, consistent with a molecular clock. Log-log correlations between lineage age, number of lineages, and range sizes, reveal a fractal geometry in time and space, indicating a spatio-temporal continuum of biodiversity across scales. Simulations show that these findings mirror dispersal-constrained models of haplotype distributions. These novel macroecological patterns may be explained by neutral evolutionary processes, acting continuously over time to produce multi-scale regularities of biodiversity.

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Section: Methodsmentioning

confidence: 99%

Whole-community DNA barcoding reveals a spatio-temporal continuum of biodiversity at species and genetic levels

et al. 2013

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“…1b ) rather than many species in a single genus, as would be expected if overall diversity were the result of radiation of a single lineage within a given eco-geographic zone. Sarcolaenaceae thus present a situation very different from that observed in Malagasy adephagan water beetles by Isambert et al ( 2011 ) but highly similar to that observed in Fabaceae by Buerki et al ( 2015 ), where the distributions of PD and species richness are highly congruent.…”

Section: Measures Of Biodiversity and Madagascar 'S Network Of Protecmentioning

confidence: 46%

“…There is thus a strong need to evaluate the effectiveness of conservation efforts, in particular the existing network of protected areas in Madagascar, with respect to their ability to ensure the survival of biodiversity, as measured not only by species richness but also in terms of phylogenetic diversity . In particular, PD is assumed to serve as a valuable tool for developing conservation policies, but to date very few studies have explored it for Madagascar (Sechrest et al 2002 ;Magnuson-Ford et al 2010 ;Isambert et al 2011 ), only one of which involving plants (Buerki et al 2015 ). In that respect, we focused on Sarcolaenaceae in order to help provide a better understanding of the potential value of PD for conserving Madagascar's biodiversity.…”

Section: Sarcolaenaceae As a Model Group For Conservation In Madagascarmentioning

confidence: 99%

“…Patterns in biodiversity distribution can vary considerably from one lineage to another, as shown by two recently published studies on the conservation of biodiversity in Madagascar. While Isambert et al ( 2011 ) showed a striking difference in the spatial distribution of the number of endemic species and phylogenetic diversity of adephagan water beetles, Buerki et al ( 2015 ) revealed a strong congruence between species richness and phylogenetic diversity in the plant family Fabaceae.…”

Section: Introductionmentioning

confidence: 96%

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Conservation of Phylogenetic Diversity in Madagascar’s Largest Endemic Plant Family, Sarcolaenaceae

Soulebeau¹,

Pellens²,

LowryII³

et al. 2016

Biodiversity Conservation and Phylogenetic Systematics

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Madagascar is renowned for its impressive species richness and high level of endemism, which led to the island being recognized as one of the world's most important biodiversity hotspots. As in many other regions, Madagascar's biodiversity is highly threatened by unsustainable anthropogenic disturbance, leading to widespread habitat loss and degradation. Although the country has signifi cantly expanded its network of protected areas (PAs), current protocols for identifying priority areas are based on traditional measures that could fail to ensure maximal inclusion of the country's biodiversity. In this study, we use Madagascar's largest endemic plant family, Sarcolaenaceae, as a model to identify areas with high diversity and to explore the potential conservation importance of these areas. Using phylogenetic information and species distribution data, we employ three metrics to study geographic patterns of diversity: species richness, Phylogenetic Diversity (PD) and Mean Phylogenetic Diversity (MPD). The distributions of species richness and PD show considerable spatial congruence, with the highest values found in a narrow localized region in the central-northern portion of the eastern humid forest. MPD is comparatively uniform spatially, suggesting that the balanced nature of the phylogenetic tree plays a role in the observed congruence between PD and species richness. The current network of PAs includes a large part of the family's biodiversity, and three PAs (Ankeniheny Zahamena Forest Corridor, the Bongolava Forest Corridor and the Itremo Massif) together contain almost 85 % of the PD. Our results suggest that PD could be a valuable source of complementary information for determining the contribution of Madagascar's existing network of PAs toward protecting the country's biodiversity and for identifying priority areas for the establishment of new parks and reserves.

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“…Patterns in biodiversity distribution can vary considerably from one lineage to another, as shown by two recently published studies on the conservation of biodiversity in Madagascar. While Isambert et al ( 2011 ) showed a striking difference in the spatial distribution of the number of endemic species and phylogenetic diversity of adephagan water beetles, revealed a strong congruence between species richness and phylogenetic diversity in the plant family Fabaceae.…”

Section: Introductionmentioning

confidence: 99%

Biodiversity Conservation and Phylogenetic Systematics

2016

Topics in Biodiversity and Conservation

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Endemism and evolutionary history in conflict over Madagascar’s freshwater conservation priorities

Cited by 30 publications

References 47 publications

Whole-community DNA barcoding reveals a spatio-temporal continuum of biodiversity at species and genetic levels

Whole-community DNA barcoding reveals a spatio-temporal continuum of biodiversity at species and genetic levels

Conservation of Phylogenetic Diversity in Madagascar’s Largest Endemic Plant Family, Sarcolaenaceae

Biodiversity Conservation and Phylogenetic Systematics

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