Spatially-explicit analyses reveal the distribution of genetic diversity and plant conservation status in Cerrado biome

Ballesteros‐Mejia, Liliana; Lima, Jacqueline S.; Collevatti, Rosane G.

doi:10.1007/s10531-018-1588-9

Cited by 16 publications

(9 citation statements)

References 75 publications

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“…A second, well-known alternative for OGMU delineation is the definition of Provenance Regions (PRs), which aims to ensure the safe transference of propagation material without risk of maladaptation since it is based on variation in adaptive characters 27 . In addition, assessment of species’ genetic diversity with molecular markers could facilitate the identification of priority conservation areas 28 , 29 . Several authors have suggested that areas containing high allelic richness and/or exclusive allelic variants are meaningful for conservation purposes 30 – 32 , particularly because they play a key role as genetic diversity reservoirs or sources of locally-adapted genotypes.…”

Section: Introductionmentioning

confidence: 99%

Genetic diversity and population structure in Nothofagus pumilio, a foundation species of Patagonian forests: defining priority conservation areas and management

Mattera

Pastorino

Lantschner

et al. 2020

Sci Rep

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Patagonian forests are the southernmost temperate forests in the world, and Nothofagus pumilio is one of their most ecologically important tree species (i.e., a foundation species). It presents great adaptability and a wide distribution range, making it a suitable model for predicting the performance of trees facing global climate change. N. pumilio forests are increasingly threatened by extreme climatic events and anthropogenic activities. This study aims to identify priority conservation areas and Genetic Zones (GZs) for N. pumilio, promoting the implementation of specific practices to ensure its management and long-term preservation. Thirty-five populations (965 trees) sampled across its distribution (more than 2200 km latitudinally) were genotyped with SSRs, and geographical patterns of genetic variation were identified using Bayesian approaches. The phylogeographic patterns of the species and geomorphological history of the region were also considered. Six priority conservation areas were identified, which hold high allelic richness and/or exclusive allelic variants. Eighteen GZs were delineated based on the genetic structure of this species, and maps showing their distributional range were drawn up. Overall, this study defines management units based on genetic data for N. pumilio for the first time, which will facilitate the establishment of sustainable practices and highlight priorities for investment of conservation funding.

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Section: Introductionmentioning

confidence: 99%

Genetic diversity and population structure in Nothofagus pumilio, a foundation species of Patagonian forests: defining priority conservation areas and management

Mattera

Pastorino

Lantschner

et al. 2020

Sci Rep

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“…Our findings suggest that the SDTFs and savannas at the central Brazil were historical refugia for the five species being source of dispersal for new colonising areas during the glacial phases for SDTF or interglacial for savanna species and T. roseoalba . In fact, the central Brazil, corresponding to the central and northern Cerrado, is a hotspot of genetic diversity and haplotype richness (Ballesteros‐Mejia et al., 2020; Collevatti et al., 2020).…”

Section: Discussionmentioning

confidence: 99%

Comparative phylogeography shows congruent co‐divergence in Neotropical seasonally dry forest and savanna tree species

Vitorino,

Reis,

Melo

et al. 2024

Journal of Biogeography

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AimThe response of South American seasonally dry tropical forest (SDTF) and savanna species to the Quaternary climate changes is still poorly understood. Here we use multi‐model inference approach to compare the phylogeography and demographic history of five trumpet tree species (also known as pau‐d'arco) and draw general biogeographical patterns: Handroanthus impetiginosus, H. ochraceus, H. serratifolius, Tabebuia aurea and T. roseoalba.LocationAmazonia, Atlantic Forest, Cerrado and Caatinga ecoregions, South America and Brazil.TaxaBignoniaceae, Tabebuia Alliance, trees.MethodsWe compiled genetic data, occurrence records and ecological niche modelling (ENM) from published articles. We used coalescent modelling to test patterns of co‐divergence, and analysed niche breadth and overlap and spatial patterns in genetic diversity using quantile regressions.ResultsSpecies showed concordant lineage divergence times in the Pleistocene. Lineage diversification and phylogeographical patterns are more related to species niche breadth than to biome (savanna or SDTF). Differences in genetic diversity among species matches the expected for the demographic scenarios obtained with coalescent simulations and ENMs: species with wider range expansion during the Last Glacial Maximum had higher diversity than species with range retraction or multiple refugia.Main ConclusionsDiversification burst in the Pliocene, and major diversification of lineages during the Pleistocene seems to be a general pattern in SDTF and savannas in the South America. The high number of haplotypes at the Central Brazil, corresponding to the Cerrado ecoregion, highlights the importance of Protected Areas for SDTFs and savannas, highly threatened biomes in Brazil.

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“…To determine a priority and establish an appropriate strategy for conservation planning of ecosystems and habitats, especially protected areas such as national parks, molecular-based assessment of levels of genetic diversity, genetic differentiation, and gene flow among populations as well as patterns of local adaptation to different environments is essential (Manel et al, 2003;Wultsch et al, 2016;Matocq et al, 2017;Hanson et al, 2021). While there are a handful of studies that have conducted population genetic analysis to develop habitat conservation and management plans, such as the establishment of ecological corridor between poorly connected areas (Streatfeild, 2009;Ballesteros-Mejia et al, 2020), little attention has been paid to the genetic diversity and population connectivity among protected reserves for the conservation and management efforts in general (e.g., Thapa et al, 2018;Jang et al, 2021).…”

Section: Introductionmentioning

confidence: 99%

Spatio-temporal genetic structure of the striped field mouse (Apodemus agrarius) populations inhabiting national parks in South Korea: Implications for conservation and management of protected areas

Kim

Kim²,

Kim³

et al. 2023

Front. Ecol. Evol.

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Population or habitat connectivity is a key component in maintaining species and community-level regional biodiversity as well as intraspecific genetic diversity. Ongoing human activities cause habitat destruction and fragmentation, which exacerbate the connectivity due to restricted animal movements across local habitats, eventually resulting in the loss of biodiversity. The Baekdudaegan Mountain Range (BMR) on the Korean Peninsula represents “biodiversity hotspots” and eight of the 22 Korean national parks are located within the BMR. Given the striped field mouse (Apodemus agrarius) is the most common and ecologically important small mammals in these protected areas, the population genetic assessment of this species will allow for identifying “genetic diversity hotspots” and also “genetic barriers” that may hinder gene flow, and will therefore inform on effective conservation and management efforts for the national park habitats. We collected samples from hair, tail, or buccal swabs for 252 A. agrarius individuals in 2015 and 2019. By using mitochondrial DNA cytochrome b (cyt b) sequences and nine microsatellite loci, we determined levels of genetic diversity, genetic differentiation, and gene flow among eight national park populations of A. agrarius along the BMR. We found high levels of genetic diversity but the occurrences of inbreeding for all the nine samples analyzed. Our results also indicated that there was detectable temporal genetic variation between the 2015 and 2019 populations in the Jirisan National Park, which is probably due to a short-term decline in genetic diversity caused by reduced population sizes. We also found a well-admixed shared gene pool among the national park populations. However, a significant positive correlation between geographic and genetic distances was detected only in mtDNA but not microsatellites, which might be attributed to different dispersal patterns between sexes. There was a genetic barrier to animal movements around the Woraksan National Park areas. The poor habitat connectivity surrounding these areas can be improved by establishing an ecological corridor. Our findings of the presence of genetic barriers in some protected areas provide insights into the conservation and management efforts to improve the population or habitat connectivity among the national parks.

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Spatially-explicit analyses reveal the distribution of genetic diversity and plant conservation status in Cerrado biome

Cited by 16 publications

References 75 publications

Genetic diversity and population structure in Nothofagus pumilio, a foundation species of Patagonian forests: defining priority conservation areas and management

Genetic diversity and population structure in Nothofagus pumilio, a foundation species of Patagonian forests: defining priority conservation areas and management

Comparative phylogeography shows congruent co‐divergence in Neotropical seasonally dry forest and savanna tree species

Spatio-temporal genetic structure of the striped field mouse (Apodemus agrarius) populations inhabiting national parks in South Korea: Implications for conservation and management of protected areas

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