Genetic Diversity and Conservation Units: Dealing With the Species-Population Continuum in the Age of Genomics

Frontiers in Ecology and Evolution, Год журнала: 2018, Номер 6

Опубликована: Окт. 23, 2018

Current approaches to biodiversity conservation are largely based on geographic areas, ecosystems, ecological communities and species, with less attention ongenetic diversity the evolutionary continuum from populations species. Conservation management generally rests discrete categories, such as identified and, for threated taxa, intraspecific units. Species, in particular, provide a common measure of yet both theory nature, speciation is typically protracted process progressing connected unambiguous species variable rates phenotypic, genetic divergence. Thus, most recognised not genetically uniform sometimes highly structured into historically isolated worthy consideration units that represent unique conservation. Genome screens offer unprecedented resolution structure across taxonomic boundaries complexes, have potential oversplit if interpreted conservatively. This highlights blurred line between can confound simple dichotomies 'species' versus 'not species'. At same time, like plants, there increasing evidence than even distantly related animal hybridize exchange genes. A review legislation reveals legal definitions quite flexible accommodate range infra-specific taxa divergent populations, well taxonomically For example, legislative definition around world include: subspecies, varieties, geographically and/or distinct populations. In principle, this flexibility allows protection maintenance processes at broad levels. However, biologists often fail adequately justify then translate their defined categories suited assessment under local legislation. We recommend (i). genomic data should be conservatively when formally naming (ii). concomitantly, stronger impetus more approach identifying clearly justified units, (iii). guidelines developed recognising labelling align best scientific practice, (iv). nuanced view emerging analyses communicated effectively by scientists decision makers.

Язык: Английский

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Passive acoustic monitoring provides a fresh perspective on fundamental ecological questions

Functional Ecology, Год журнала: 2023, Номер 37(4), С. 959 - 975

Опубликована: Янв. 20, 2023

Abstract Passive acoustic monitoring (PAM) has emerged as a transformative tool for applied ecology, conservation and biodiversity monitoring, but its potential contribution to fundamental ecology is less often discussed, PAM studies tend be descriptive, rather than mechanistic. Here, we chart the most promising directions ecologists wishing use suite of currently available methods address long‐standing questions in explore new avenues research. In both terrestrial aquatic habitats, provides an opportunity ask across multiple spatial scales at fine temporal resolution, capture phenomena or species that are difficult observe. combination with traditional approaches data collection, could release from myriad limitations have, times, precluded mechanistic understanding. We discuss several case demonstrate estimation, population trend analysis, assessing climate change impacts on phenology distribution, understanding disturbance recovery dynamics. also highlight what horizon PAM, terms near‐future technological methodological developments have provide advances coming years. Overall, illustrate how can harness power ecological era no longer characterised by limitation. Read free Plain Language Summary this article Journal blog.

Язык: Английский

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Integrating cryptic diversity into coral evolution, symbiosis and conservation

Nature Ecology & Evolution, Год журнала: 2024, Номер 8(4), С. 622 - 636

Опубликована: Фев. 13, 2024

Язык: Английский

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Development of SNP for Sebastes Species Identification With Special Focus on the Cryptic Species Complex of Sebastes norvegicus

Ecology and Evolution, Год журнала: 2025, Номер 15(1)

Опубликована: Янв. 1, 2025

ABSTRACT The genus Sebastes in the North Atlantic comprises of long lived deep‐waters species that have been extensively fished upon, and many stocks are severely depleted across Atlantic. This is particularly evident for norvegicus . In recent papers, cryptic indicated within this molecular markers therefore needed to provide identification species, including as a basis advice regarding management rebuilding stocks. A suite 2800 Single Nucleotide Polymorphism (SNP) were identified from ddRAD sequencing data, which 56 SNPs organized two multiplex reactions tested on 191 spp. different sampling locations Norway Greenland. Good‐quality amplification products successfully obtained 49 SNP ID, 3 TaqMan probes designed assign S. mentella , viviparus types B. total 47 biallelic, with averaged H E per locus ranging between 0.053 0.50. SNP‐based method establishes foundation genetically identifying Northeast species. findings presented should be followed by an effort look morphological characters recognize site. general, proper tool monitoring distribution perspective.

Язык: Английский

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The late blooming amphipods: Global change promoted post-Jurassic ecological radiation despite Palaeozoic origin

Molecular Phylogenetics and Evolution, Год журнала: 2019, Номер 143, С. 106664 - 106664

Опубликована: Окт. 26, 2019

Язык: Английский

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Multilevel fine-scale diversity challenges the ‘cryptic species’ concept

Scientific Reports, Год журнала: 2019, Номер 9(1)

Опубликована: Май 1, 2019

'Cryptic' species are an emerging biological problem that is broadly discussed in the present study. Recently, a cryptic definition was suggested for those which manifest low morphological, but considerable genetic, disparity. As case study we unique material from charismatic group of nudibranch molluscs genus Trinchesia European waters to reveal three new and demonstrate they show dual nature: on one hand, can be considered 'cryptic' complex due their overall similarity, other stable morphological differences as well molecular demonstrated every complex. Thus, this equally named 'cryptic', 'pseudocryptic' or 'non-cryptic'. We also evidence extremely rapid speciation rate link with epigenetics. Available metazoan-wide data, study, unsuitability concept because degree crypticity represents continuum when finer multilevel scale applied uncover more narrowly defined making addition 'species' redundant. Morphological methods should concordance form fine-scale taxonomic framework, not necessarily implying only posteriori transformation exclusively molecular-based into morphologically-defined ones. Implications have importance many fields, including conservation biology biodiversity assessments.

Язык: Английский

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Reassessment of the taxonomic status of Pseudopaludicola parnaiba (Anura, Leptodactylidae, Leiuperinae), with the description of a new cryptic species from the Brazilian Cerrado

European Journal of Taxonomy, Год журнала: 2020, Номер 679

Опубликована: Июль 3, 2020

The Neotropical frog genus Pseudopaludicola includes 25 species distributed throughout South America. Herein we review the taxonomic status of P. parnaiba relative to canga and specific identity population treated in previous studies as sp. 3 from Barreirinhas Brazilian state Maranhão. lack differentiation advertisement call, morphology, mitochondrial markers topotypes different populations rejects distinct species. For these reasons, suggest formally consider a junior synonym canga. We also found that previously reported facureae central Brazil (Palmeiras de Goiás, Goiás) corresponds cryptic describe here new Lastly, provide for first time phylogenetic positions giarettai, llanera pusilla.

Язык: Английский

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Continental-scale patterns of hyper-cryptic diversity within the freshwater model taxon Gammarus fossarum (Crustacea, Amphipoda)

Scientific Reports, Год журнала: 2020, Номер 10(1)

Опубликована: Окт. 6, 2020

Traditional morphological diagnoses of taxonomic status remain widely used while an increasing number studies show that one morphospecies might hide cryptic diversity, i.e. lineages with unexpectedly high molecular divergence. This hidden diversity can reach even tens lineages, hyper diversity. Even well-studied model-organisms may exhibit overlooked Such is the case freshwater crustacean amphipod model taxon Gammarus fossarum. It extensively in both applied and basic types research, including biodiversity assessments, ecotoxicology evolutionary ecology. Based on COI barcodes 4926 individuals from 498 sampling sites 19 European countries, present paper shows (1) ranging 84 to 152 Molecular Operational Taxonomic Units, (2) ancient diversification starting already 26 Mya Oligocene, (3) level lineage syntopy. if was documented G. fossarum, study increases its extent fourfold, providing a first continental-scale insight into geographical distribution establishes several hotspots, notably south-eastern central Europe. The challenges recording future are also discussed.

Язык: Английский

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Redescription of Emplectonema viride – a ubiquitous intertidal hoplonemertean found along the West Coast of North America

ZooKeys, Год журнала: 2021, Номер 1031, С. 1 - 17

Опубликована: Апрель 14, 2021

Stimpson, 1857, a barnacle predator, is one of the most common and conspicuous intertidal nemerteans found along West Coast North America from Alaska to California, but it currently referred by wrong name. Briefly described without designation type material or illustrations, species was synonymized with Atlantic look-alike,

Язык: Английский

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A new cryptic species of Pithecopus (Anura, Phyllomedusidae) in north-eastern Brazil

European Journal of Taxonomy, Год журнала: 2020, Номер 723, С. 108 - 134

Опубликована: Ноя. 10, 2020

The genus of Neotropical frogs Pithecopus includes 11 species occurring east the Andes from southern Venezuela to northern Argentina. Recent genetic approaches pointed out an unusual diversity among populations localities in north-eastern Brazil recognized as P. nordestinus. In fact, one these studies confirmed hypothesis that São Francisco River acted effective geographical barrier during vicariant events evolutionary history nordestinus, resulting two principal, highly divergent clades. Herein we formally describe this clade a new cryptic Brazil, sister It differs other Pithecopus, except for azureus and by its small body size, lack reticulate pattern on flanks, smaller head width, advertisement calls generally composed three-pulsed core.

Язык: Английский

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