A5051114026- Marine animal studies overview
- Arctic and Antarctic ice dynamics
- Genetic diversity and population structure
- Marine and coastal plant biology
- Genomics and Phylogenetic Studies
- Marine and fisheries research
- Underwater Acoustics Research
- Isotope Analysis in Ecology
- Botany, Ecology, and Taxonomy Studies
- Coral and Marine Ecosystems Studies
- Identification and Quantification in Food
- Cephalopods and Marine Biology
- Marine Bivalve and Aquaculture Studies
- Wildlife Ecology and Conservation
- Evolution and Paleontology Studies
- Particle physics theoretical and experimental studies
- Evolution and Genetic Dynamics
- Genetics, Bioinformatics, and Biomedical Research
- Bat Biology and Ecology Studies
- Leptospirosis research and findings
- Genetic and Clinical Aspects of Sex Determination and Chromosomal Abnormalities
- Mycobacterium research and diagnosis
- Animal Genetics and Reproduction
- Sperm and Testicular Function
- Arctic and Russian Policy Studies
University of Copenhagen
2020-2024
University of San Carlos of Guatemala
2023
University of Groningen
2017-2022
Inferring the demographic history of species and their populations is crucial to understand contemporary distribution, abundance adaptations. The high computational overhead likelihood-based inference approaches severely restricts applicability large data sets or complex models. In response these restrictions, approximate Bayesian computation (ABC) methods have been developed infer past species. Here, we present results an evaluation ABC-based approach implemented in popular software package...
Global warming is affecting the population dynamics and trophic interactions across a wide range of ecosystems habitats. Translating these real-time effects into their long-term consequences remains challenge. The rapid extreme period that occurred after Last Glacial Maximum (LGM) during Pleistocene-Holocene transition (7-12 thousand years ago) provides an opportunity to gain insights responses natural populations periods with global warming. this post-LGM have been assessed in many...
Enzymatic removal of uracil bases from ancient DNA fragments. "Antarctic Thermolabile Uracil glycosylase (UDG) catalyzes the excision a base, forming an abasic (apyrimidinic) site while leaving phosphodiester backbone intact. The lyase activity Endonuclease III breaks at 3´and 5´ sides site. In addition to generating different 3´-terminus than USER Enzyme (a 3´-phospho-α, β-unsaturated aldehyde versus 3´phosphate left by Enzyme,NEB #M5505), II (NEB #M5508) can also be completely heat...
Ancient DNA Extraction Protocol (spin column-based) This protocol outlines the procedure for extracting ancient from bone or tooth powder using Monarch spin columns. The final extract volume will be 35 µL. Based on: column is based on Dabney et al. 2013 (DOI:10.1073/pnas.1314445110) modified binding buffer Allentoft 2015 extraction (DOI: 10.1038/nature14507) initially written up by Michael V. Westbury 20-08-2018. Annotations added Andrea A. Cabrera and Alba Rey-Iglesia 08-11-2019....
Abstract The impact of post‐divergence gene flow in speciation has been documented across a range taxa recent years, and may have especially widespread highly mobile, wide‐ranging marine species, such as cetaceans. Here, we studied individual genomes from nine species the three families toothed whale superfamily Delphinoidea (Delphinidae, Phocoenidae Monodontidae). To investigate role process, used multifaceted approach, including (i) phylogenomics, (ii) distribution shared derived alleles...
Currently, three stocks of sei whales (Balaenoptera borealis) are defined in the North Atlantic; Nova Scotian, Iceland-Denmark Strait and Eastern Atlantic stocks, which mainly based upon historical catch sighting data. We analyzed mitochondrial control region DNA (mtDNA) sequences genotypes from 7 to 11 microsatellite loci 87 samples sites Iceland, Gulf Maine Azores, compared against Pacific using 489 previously published samples. No statistically significant deviations homogeneity were...
The advent of massive parallel sequencing technologies has resulted in an increase studies based upon complete mitochondrial genome DNA sequences that revisit the taxonomic status within and among species. Spatially distinct monophyly such mitogenomic genealogies, i.e., sharing a recent common ancestor con-specific samples collected same region been viewed as evidence for subspecies. Several cetaceans have employed this criterion to suggest subsequent intraspecific revisions. We reason...
The deep oceans of the Southern Hemisphere are home to several elusive and poorly studied marine megafauna. In absence robust observational data for these species, genetic can aid inferences on population connectivity, demography ecology. A previous investigation diversity structure in Gray's beaked whale ( Mesoplodon grayi ) from Western Australia New Zealand found high levels mtDNA diversity, no geographic stable demographic history. To further investigate phylogeographic patterns across...
Studies of cetacean evolution using genetics and other biomolecules have come a long way—from the use allozymes short sequences mitochondrial or nuclear DNA to assembly full genomes characterization proteins lipids. Cetacean research has also advanced from only contemporary samples analyzing dating back thousands years, retrieving data indirect environmental sources, including water sediments. Combined, these studies profoundly deepened our understanding origin cetaceans; their adaptation...
Accurate sex identification is crucial for elucidating the biology of a species. In absence directly observable sexual characteristics, wild fauna can be challenging, if not impossible. Molecular sexing offers powerful alternative to morphological approaches. Here, we present SeXY, novel sex-identification pipeline, very low-coverage shotgun sequencing data from single individual. SeXY was designed utilize low-effort screening and does require conspecific sex-chromosome assembly as...
Summary The bowhead whale, an Arctic endemic, was heavily overexploited during commercial whaling between the 16th-20th centuries 1 . Current climate warming, with amplification of average global temperatures, poses a new threat to species 2 Assessing vulnerability whales near-future predictions change remains challenging, due lacking data on population dynamics prior and responses past climatic change. Here, we integrate palaeogenomics stable isotope ( δ 13 C 15 N) analysis 201 whale...
The establishment of marine protected areas (MPAs) requires a thorough assessment the abundance, distribution, and habitat preferences variety species. Small cetacean spatial distribution abundance were examined in Pacific waters Guatemala to provide this information. Boat surveys conducted for 38 months between January 2008 June 2012. A total 64,678 cetaceans 505 sightings from nine Delphinidae species recorded. Three species, referred as common accounted 90% ( n = 456) all sightings. They...
The Arctic is among the most climatically sensitive environments on Earth, and disappearance of multiyear sea ice in Ocean predicted within decades. As apex predators, polar bears are sentinel species for addressing impact environmental variability marine ecosystems. By integrating genomics, isotopic analysis, morphometrics, ecological modeling, we investigate how Holocene changes affected around Greenland. We uncover reductions effective population size coinciding with increases annual mean...
Abstract Full mitochondrial genomes were assembled for 12 recently sampled animals from the Svalbard bowhead whale (Balaena mysticetus) stock via high-throughput sequencing data, facilitating analysis of demographic history population first time. The has retained noticeable amounts genome diversity despite extreme historical harvest levels. Haplotype and nucleotide diversities similar to those estimated earlier other populations. reconstructed was in accordance with a boom–bust scenario,...
A bstract The importance of post-divergence gene flow in speciation has been documented across a range taxa recent years, and may have especially widespread highly mobile, wide-ranging marine species, such as cetaceans. Here, we studied individual genomes from nine species the three families toothed whale superfamily Delphinoidea (Delphinidae, Phocoenidae, Monodontidae). To investigate role process, used multifaceted approach, including: (i) phylogenomics, (ii) distribution shared derived...
Cetacean strandings constitute one of the most important sources information for studying cetacean diversity and obtaining basic biological data. The Guatemalan Pacific Ocean supports a high cetaceans, with at least 19 confirmed species records. However, little is known about in Guatemala their association anthropogenic activities. We reviewed occurrence on coastline between 2007 2021. Stranding records were obtained from publications citizen science such as sporadic reports third parties,...
Abstract The demography of baleen whales and their prey during the past 30 thousand years was assessed to understand effects rapid global warming on marine ecosystems. Mitochondrial genome-wide DNA sequence variation in eight whale seven species revealed strong, ocean-wide demographic changes that were correlated with temperatures regional oceanographic conditions. In Southern Ocean abundance increased exponentially apparent synchrony, whereas varied among more heterogeneous North Atlantic...
Introduction: Killer whales (Orcinus orca) have a global distribution, but many low-latitude populations such as the Eastern Tropical Pacific are not well studied.
 Objective: Provide review of killer whale sightings in Exclusive Economic Zone Guatemala, for which there has previously been little information.
 Methods: We reviewed national and regional publications, anecdotal records Guatemala.
 Results: document five spanning three decades (1990-2020). Four were recorded...
The endangered giant root-rat (Tachyoryctes macrocephalus, also known as mole rat) is a fossorial rodent endemic to the afro-alpine grasslands of Bale Mountains in Ethiopia. species an important ecosystem engineer with majority global population found within 1000 km2. Here, we present first complete mitochondrial genome and genus Tachyoryctes, recovered using shotgun sequencing iterative mapping. A phylogenetic analysis including 15 other representatives family Spalacidae placed Tachyoryctes...
Abstract The Arctic is among the most climatically sensitive environments on Earth, and disappearance of multiyear sea-ice in Ocean predicted within decades. As apex predators, polar bears are sentinel species for addressing impact environmental variability marine ecosystems. By integrating genomics, isotopic analysis, morphometrics, ecological modelling, we investigate how Holocene changes affected evolutionary ecology around Greenland. We show that throughout last ∼11,000 years,...
Abstract Accurate sex identification is crucial for elucidating the biology of a species. In absence directly observable sexual characteristics, wild fauna can be challenging, if not impossible. Molecular sexing offers powerful alternative to morphological approaches. Here, we present SeXY, novel sex-identification pipeline, very low-coverage shotgun sequencing data from single individual. SeXY was designed utilise low-effort screening and does require conspecific sex-chromosome assembly as...