Joachim Mergeay

ORCID: 0000-0002-6504-0551
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About
Contact & Profiles
Research Areas
  • Genetic diversity and population structure
  • Aquatic Ecosystems and Phytoplankton Dynamics
  • Environmental Conservation and Management
  • Wildlife Ecology and Conservation
  • Environmental DNA in Biodiversity Studies
  • Species Distribution and Climate Change
  • Plant and animal studies
  • Ecology and Vegetation Dynamics Studies
  • Evolution and Genetic Dynamics
  • Forest Ecology and Biodiversity Studies
  • Fish Ecology and Management Studies
  • Aquatic Ecosystems and Biodiversity
  • Forest Management and Policy
  • Aquatic Invertebrate Ecology and Behavior
  • Botany and Plant Ecology Studies
  • Amphibian and Reptile Biology
  • Genetically Modified Organisms Research
  • Genetic and phenotypic traits in livestock
  • Forest Insect Ecology and Management
  • Genetic and Environmental Crop Studies
  • Forest ecology and management
  • Genomics and Phylogenetic Studies
  • Energy, Environment, Agriculture Analysis
  • International Maritime Law Issues
  • Mycorrhizal Fungi and Plant Interactions

KU Leuven
2014-2025

Research Institute for Nature and Forest
2015-2025

Research for Action
2025

International Union for Conservation of Nature (Bangladesh)
2025

Fondazione Edmund Mach
2024

International Union for Conservation of Nature
2021-2022

Office of Diversity and Inclusion
2016-2018

Flemish Government
2013-2014

Plant (United States)
2012

University of California, Davis
2012

The 196 parties to the Convention on Biological Diversity (CBD) will soon agree a post-2020 global framework for conserving three elements of biodiversity (genetic, species, and ecosystem diversity) while ensuring sustainable development benefit sharing. As most significant conservation policy mechanism, new CBD has far-reaching consequences- it guide actions reporting each member country until 2050. In previous strategies, as well other major mechanisms, targets indicators genetic diversity...

10.1016/j.biocon.2020.108654 article EN cc-by Biological Conservation 2020-07-02

Species of the genus Daphnia O.F. Müller, 1785 (Cladocera: Daphniidae) have become very important models in evolutionary biology research. Previous morphological and genetic evidence suggests that numerous closely related "species groups" exist within subgenus (Ctenodaphnia) Dybowski & Grochowski, 1895, containing both described undescribed species. The similis group is among these species groups. aim present paper to revise taxonomy Old World with (based on mitochondrial COI 12S rRNA...

10.11646/zootaxa.4161.1.1 article EN Zootaxa 2016-09-02

Abstract Global conservation policy and action have largely neglected protecting monitoring genetic diversity—one of the three main pillars biodiversity. Genetic diversity (diversity within species) underlies species’ adaptation survival, ecosystem resilience, societal innovation. The low priority given to has been due knowledge gaps in key areas, including importance trends change; perceived high expense availability scattered nature data; complicated concepts information that are...

10.1093/biosci/biab054 article EN cc-by-nc BioScience 2021-04-13

International agreements such as the Convention on Biological Diversity (CBD) have committed to conserve, and sustainably equitably use, biodiversity. The CBD is a vital instrument for global conservation because it guides 195 countries European Union in setting priorities allocating resources, requires regular reporting progress. However, similar policy often neglected genetic diversity. This critical gap diversity underlies adaptation environmental change ecosystem resilience. Here we aim...

10.1016/j.biocon.2021.109233 article EN cc-by-nc-nd Biological Conservation 2021-07-08

Genetic diversity among and within populations of all species is necessary for people nature to survive thrive in a changing world. Over the past three years, commitments conserving genetic have become more ambitious specific under Convention on Biological Diversity's (CBD) draft post-2020 global biodiversity framework (GBF). This Perspective article comments how goals targets GBF evolved, improvements that are still needed, lessons learned from this process, connections between actions...

10.1007/s10592-022-01492-0 article EN cc-by Conservation Genetics 2023-01-16

Abstract Genetic monitoring of populations currently attracts interest in the context Convention on Biological Diversity but needs long-term planning and investments. However, genetic diversity has been largely neglected biodiversity monitoring, when addressed, it is treated separately, detached from other conservation issues, such as habitat alteration due to climate change. We report an accounting efforts monitor population Europe (genetic effort, GME), evaluation which can help guide...

10.1038/s41559-023-02260-0 article EN cc-by Nature Ecology & Evolution 2024-01-15

Abstract Under the recently adopted Kunming‐Montreal Global Biodiversity Framework, 196 Parties committed to reporting status of genetic diversity for all species. To facilitate reporting, three indicators were developed, two which focus on processes contributing conservation: maintaining genetically distinct populations and ensuring are large enough maintain diversity. The major advantage these is that they can be estimated with or without DNA‐based data. However, demonstrating their...

10.1111/ele.14461 article EN cc-by-nc-nd Ecology Letters 2024-07-01

Habitat destruction and fragmentation are among the major causes of amphibian decline. We investigated to what extent geographic distance barriers affect genetic composition crested newt, Triturus cristatus in Flanders (North Belgium), causing inbreeding or loss diversity. Data from seven microsatellite loci 170 individuals metapopulations up 180km apart revealed heterozygosities 0.53 0.67 within populations moderate levels divergence between (FST values 0.074 0.141, harmonic means Dest...

10.26496/bjz.2011.160 article EN Belgian journal of zoology 2024-03-20

Abstract Human activities have increasingly introduced plant species far outside their native ranges under environmental conditions that can strongly differ from those originally met. Therefore, before spreading, and potentially causing ecological economical damage, non‐native may rapidly evolve. Evidence of genetically based adaptation during the process becoming invasive is very scant, however, which due to lack knowledge regarding historical genetic makeup populations genomic resources....

10.1111/mec.12683 article EN Molecular Ecology 2014-01-30

Background Free-living microorganisms have long been assumed to ubiquitous distributions with little biogeographic signature because they typically exhibit high dispersal potential and large population sizes. However, molecular data provide contrasting results it is far from clear what extent limitation determines geographic structuring of microbial populations. We aimed determine biogeographical patterns the bloom-forming freshwater cyanobacterium Microcystis aeruginosa. Being widely...

10.1371/journal.pone.0019561 article EN cc-by PLoS ONE 2011-05-05

The adaptive potential of tree species to cope with climate change has important ecological and economic implications. Many temperate experience a wide range environmental conditions, suggesting high adaptability new conditions. We investigated adaptation regional in the drought-sensitive Alnus glutinosa (Black alder), using complementary approach that integrates genomic, phenotypic landscape data. A total 24 European populations were studied common garden through genomic approaches....

10.1111/mec.12813 article EN Molecular Ecology 2014-05-26

Abstract The European weather loach ( Misgurnus fossilis ) is a cryptic and poorly known fish species of high conservation concern. experiencing dramatic population collapses across its native range to the point regional extinction. Although environmental DNA (eDNA)‐based approaches offer clear advantages over conventional field methods for monitoring rare endangered species, accurate detection quantification remain difficult quality assessment often incorporated. In this study, we developed...

10.1111/jfb.14315 article EN Journal of Fish Biology 2020-03-10

Abstract Recent scientific evidence shows that genetic diversity must be maintained, managed, and monitored to protect biodiversity nature's contributions people. Three indicators, two of which do not require DNA‐based assessment, have been proposed for reporting the Convention on Biological Diversity other conservation policy initiatives. These indicators allow an approximation status trends inform policy, using existing demographic geographic information. Application these has initiated...

10.1111/conl.12953 article EN cc-by Conservation Letters 2023-05-01

The huge ecological and economic impact of biological invasions creates an urgent need for knowledge traits that make invading species successful factors helping indigenous populations to resist displacement by or genotypes. High genetic diversity is generally considered be advantageous in both processes. Combined with sex, it allows rapid evolution adaptation changing environments. We combined paleogenetic analysis continent-wide survey at nuclear mitochondrial loci reconstruct the invasion...

10.1098/rspb.2006.3661 article EN Proceedings of the Royal Society B Biological Sciences 2006-08-15

Abstract The combined analysis of neutral and adaptive genetic variation is crucial to reconstruct the processes driving population structure in wild. However, such challenging because complex interaction among selective landscape. Overcoming this level complexity requires an unbiased search for evidence selection genomes populations sampled from their natural habitats identification demographic that lead present‐day populations' structure. Ecological model species with a suite genomic tools...

10.1111/mec.12117 article EN Molecular Ecology 2012-11-23

Abstract Millette et al . (Ecology Letters, 2020, 23:55–67) reported no consistent worldwide anthropogenic effects on animal genetic diversity using repurposed mitochondrial DNA sequences. We reexamine data from this study, describe marker and scale limitations which might lead to misinterpretations with conservation implications, provide advice improve future macrogenetic studies.

10.1111/ele.13732 article EN Ecology Letters 2021-03-22

In closely related plant species that display strong similarities in phenology and pollinator communities, differences breeding system associated shifts floral traits may have important effects on the magnitude direction of heterospecific pollen flow hybridization. Here, we quantified strength several pre- postzygotic barriers acting between facultatively outcrossing Centaurium erythraea predominantly selfing C. littorale via a suite experiments, estimated frequency hybridization field using...

10.1111/evo.12345 article EN Evolution 2013-12-26

Biodiversity and nature values in anthropogenic landscapes often depend on land use practices management. Evaluations of the association between management biodiversity remain, however, comparatively scarce, especially aquatic systems. Furthermore, studies also tend to focus a limited set organism groups at local scale, whereas multi-group approach landscape scale is be preferred. This study aims investigate effect pond diversity multiple (e.g. phytoplankton, zooplankton, several...

10.1371/journal.pone.0072538 article EN cc-by PLoS ONE 2013-08-12
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