Article
Evolutionary Biology
Hamish A. Burnett, Vanessa C. Bieker, Mathilde Le Moullec, Bart Peeters, Jorgen Rosvold, Ashild onvik Pedersen, Love Dalen, Leif Egil Loe, Henrik Jensen, Brage B. Hansen, Michael D. Martin
Summary: Anthropogenic reintroduction can supplement natural recolonization in reestablishing a species' distribution and abundance. However, both reintroductions and recolonizations can give rise to founder effects that reduce genetic diversity and increase inbreeding, potentially causing the accumulation of genetic load and reduced fitness.
EVOLUTIONARY APPLICATIONS
(2023)
Review
Ecology
Travis Seaborn, Kimberly R. Andrews, Cara V. Applestein, Tyler M. Breech, Molly J. Garrett, Andrii Zaiats, T. Trevor Caughlin
Summary: Whole-genome sequencing is changing the way we understand organismal biology and can inform population dynamics, but there is still much to learn about how genomic differences impact population dynamics in the real world. By using genomics and genetics data to inform organismal performance, we can better understand the drivers of population dynamics and improve translocation success through the development and validation of forecasting models. Integrating lab-based and field-collected data with model-driven research can help address challenges in restoration ecology and aid in the translocation of locally adapted genotypes.
RESTORATION ECOLOGY
(2021)
Article
Biochemistry & Molecular Biology
Eric Wootton, Claude Robert, Jolle Taillon, Steeve Cote, Aaron B. A. Shafer
Summary: In this study, the relationships between measures of inbreeding, genomic constraint, and mutational load were investigated in white-tailed deer, caribou, and mountain goat. The results showed that mountain goats had higher inbreeding coefficients and more evolutionarily constrained regions compared to caribou and white-tailed deer. Additionally, white-tailed deer had the highest mutational load, followed by caribou, while mountain goats had the lowest.
Article
Ecology
Aru Toyoda, Tamaki Maruhashi, Yoshi Kawamoto, Kazunari Matsudaira, Ikki Matsuda, Suchinda Malaivijitnond
Summary: This study provides detailed insights into copulatory behaviors and genetic analysis of male coalition-like formation in stump-tailed macaques. The findings suggest that male-male alliances can form regardless of the degree of kinship/relatedness and that males employing a coalition strategy have higher reproductive success compared to those using a single-male monopoly strategy.
FRONTIERS IN ECOLOGY AND EVOLUTION
(2022)
Article
Biochemistry & Molecular Biology
Sarah Barfield, Sarah W. Davies, Mikhail V. Matz
Summary: This study investigated the possibility of sweepstakes reproductive success (SRS) in Acropora hyacinthus at Yap Island, Micronesia. The genetic diversity of adults and juveniles at different sites was compared, and a dip in genetic diversity was observed in juveniles compared to adults at two sites. However, there was no detectable genetic structure among juveniles. Nonetheless, a pair of juvenile siblings was identified at the site with the lowest genetic diversity, suggesting the existence of SRS.
Article
Biodiversity Conservation
I. R. Onley, L. C. White, K. E. Moseby, P. Copley, S. Cowen
Summary: Translocation is an important approach to threatened species conservation, but it can lead to unsustainable harvesting pressure on critical and vulnerable source populations. Population Viability Analysis (PVA) can be used to predict translocation outcomes and optimize strategies. This study demonstrates the value of admixing founder populations for translocation, even when one source population is genetically depauperate.
ANIMAL CONSERVATION
(2023)
Article
Multidisciplinary Sciences
Sarah K. Lamar, Nicola J. Nelson, Jennifer A. Moore, Helen R. Taylor, Susan N. Keall, Diane K. Ormsby
Summary: Successful reproduction is crucial for the persistence of at-risk species, and the reproductive characteristics of many wild species remain understudied. This study collected and characterized mature sperm from male tuatara for the first time, revealing a very high percentage of viable sperm cells and faster sperm velocity compared to other reptiles. Further research is needed to fully understand reproduction in this basal reptile.
Article
Evolutionary Biology
Kara L. Dicks, Alex D. Ball, Lisa Banfield, Violeta Barrios, Mohamed Boufaroua, Abdelkader Chetoui, Justin Chuven, Mark Craig, Mohammed Yousef Al Faqeer, Hamissou Halilou Mallam Garba, Hela Guedara, Abdoulaye Harouna, Jamie Ivy, Chawki Najjar, Marie Petretto, Ricardo Pusey, Thomas Rabeil, Philip Riordan, Helen Senn, Ezzedine Taghouti, Tim Wacher, Tim Woodfine, Tania Gilbert
Summary: Threatened species are distributed across small wild populations, ex situ populations and reintroduced populations. Integrated management is necessary and genetic data can help determine the relationships between different populations. This study assessed the genetic diversity of the addax and emphasized the importance of conserving the remaining wild population.
EVOLUTIONARY APPLICATIONS
(2023)
Article
Ornithology
Peri E. Bolton, Simon C. Griffith
Summary: Aviculturists are eager to contribute to conservation efforts, but little research has been done on the genetic implications of bringing organisms into captivity. The study on domesticated Gouldian Finches in Australia found reduced genetic diversity, high relatedness, and genetic structure among avicultural populations. Differences in head-color genotype frequencies between domesticated and wild populations suggest caution is needed before introducing domesticated stock into the wild.
EMU-AUSTRAL ORNITHOLOGY
(2021)
Article
Biochemistry & Molecular Biology
Kristen N. Finch, Adam D. Leache
Summary: Rarity, range restriction, and narrow endemism have significant conservation implications for imperilled species. The study shows that human-associated extinction risk factors can also impact widespread species. Comparing newts in the same region, the research highlights the importance of local-scale landscape genetics in understanding population connectivity.
Article
Genetics & Heredity
Aliya Yakupova, Andrey Tomarovsky, Azamat Totikov, Violetta Beklemisheva, Maria L. Logacheva, Polina Perelman, Aleksey Komissarov, Pavel Dobrynin, Ksenia Krasheninnikova, Gaik A. Tamazian, Natalia Serdyukova, Mike Rayko, Tatiana Bulyonkova, Nikolay Cherkasov, Vladimir Pylev, Vladimir Peterfeld, Aleksey Penin, Elena Balanovska, Alla J. Lapidus, Stephen OBrien, Alexander Graphodatsky, Klaus-Peter Koepfli, Sergei Kliver
Summary: This study investigates the genetic diversity and demographic history of the Baikal seal. The researchers found that the Baikal seal experienced a more severe population decline compared to other similar species, which could be attributed to the environmental changes during glacial-interglacial cycles. Additionally, they observed high conservation of chromosomal features in the Baikal seal's genome, similar to other marine pinniped species.
Article
Fisheries
Robin S. Waples, Pierre Feutry
Summary: Research has found that genetic methods and close-kin mark-recapture methods differ in estimating population size, but combining the two can provide a better assessment of both ecological and evolutionary processes.
FISH AND FISHERIES
(2022)
Article
Biochemistry & Molecular Biology
Kojin Tsuchiya, Yuna Zayasu, Yuichi Nakajima, Nana Arakaki, Go Suzuki, Noriyuki Satoh, Chuya Shinzato
Summary: Understanding the structure and connectivity of coral populations is crucial for marine conservation. This study reveals the complex migration tendencies and population dynamics of coral populations in the Nansei Islands, influenced by heterogeneity in ocean currents and local environments.
Review
Biodiversity Conservation
Zhibin Cheng, Xiuhua Tian, Zhenyu Zhong, Pengfei Li, Daming Sun, Jiade Bai, Yuping Meng, Shumiao Zhang, Yuanyuan Zhang, Libo Wang, Dingzhen Liu
Summary: Reintroduction plays a crucial role in the conservation of endangered species, but long-term data on population dynamics and conservation status are often lacking. The conservation efforts of the Chinese Milu over the past 35 years have resulted in a current population of approximately 9062 individuals, with successful reintroductions and rapid population growth. Challenges in Milu conservation in China persist despite these achievements.
GLOBAL ECOLOGY AND CONSERVATION
(2021)
Article
Ecology
Chloe Schmidt, Gabriel Munoz, Lesley T. Lancaster, Jean-Philippe Lessard, Katharine A. Marske, Katie E. Marshall, Colin J. Garroway
Summary: Global biodiversity is organized into biogeographic regions. Populations near biogeographic boundaries have lower effective population sizes and genetic diversity, and are more genetically differentiated. These patterns are stable and generalizable in their contribution to long-term limits on biodiversity homogenization.
Article
Ecology
Daniel W. A. Noble, Fonti Kar, Shinichi Nakagawa, J. Scott Keogh, Martin J. Whiting
Summary: The study found that performance traits do not directly impact the outcome of lizard contests or reproductive success, but are more influenced by males adopting different reproductive strategies.
JOURNAL OF EVOLUTIONARY BIOLOGY
(2021)
Article
Behavioral Sciences
Shannon R. Kelleher, Ben C. Scheele, Aimee J. Silla, J. Scott Keogh, David A. Hunter, John A. Endler, Phillip G. Byrne
Summary: The study investigated predictors of male mating success in the critically endangered northern corroboree frog, revealing that infection with the amphibian chytrid fungus significantly influenced male calling behaviour and mating success. Factors such as age, body size, and soil moisture of nests also played a role in male mating success. The findings highlight a novel mechanism through which the pathogen can affect amphibian fitness and suggest the importance of considering sexual selection in conservation efforts for threatened amphibians globally.
Article
Ecology
Mitzy Pepper, J. Scott Keogh
Summary: The paper reviews the geological development and contemporary landscapes of Australia's arid zone, proposing eight biogeographical hypotheses that explore the interaction of geomorphology, evolutionary history, and ecological factors in shaping diversification patterns in the desert lowlands. Results indicate that geomorphological processes have a fundamental influence on the genetic structure of Australian desert taxa.
JOURNAL OF BIOGEOGRAPHY
(2021)
Article
Multidisciplinary Sciences
Sangeet Lamichhaney, Renee Catullo, J. Scott Keogh, Simon Clulow, Scott Edwards, Tariq Ezaz
Summary: The study of the genome of the ornate burrowing frog from Australia reveals four major mechanisms driving reduction in genome size, including decreased abundance of transposable elements, increased net deletion bias in TEs, drastic reduction in intron lengths, and expansion of TE-suppressing Piwi genes. Transcriptomes from multiple tissues confirm these results and provide insights into sex-differentiation pathways in Platyplectrum. The genome offers a model for future comparative studies on genome size reduction mechanisms in amphibians and vertebrates.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2021)
Article
Evolutionary Biology
Carlos J. Pavon-Vazquez, Ian G. Brennan, J. Scott Keogh
Summary: The study revealed evidence of ancient hybridization between the Komodo dragon and sand monitors, with sand monitor species sharing more nuclear alleles with the Komodo dragon than expected, displaying phenotypes intermediate between their closest relatives and the Komodo dragon. Biogeographic analysis indicated co-occurrence of the Komodo dragon and ancestral sand monitors in northern Australia.
SYSTEMATIC BIOLOGY
(2021)
Article
Biodiversity Conservation
David G. Chapple, Uri Roll, Monika Boehm, Rocio Aguilar, Andrew P. Amey, Chris C. Austin, Marleen Baling, Anthony J. Barley, Michael F. Bates, Aaron M. Bauer, Daniel G. Blackburn, Phil Bowles, Rafe M. Brown, S. R. Chandramouli, Laurent Chirio, Hal Cogger, Guarino R. Colli, Werner Conradie, Patrick J. Couper, Mark A. Cowan, Michael D. Craig, Indraneil Das, Aniruddha Datta-Roy, Chris R. Dickman, Ryan J. Ellis, Aaron L. Fenner, Stewart Ford, S. R. Ganesh, Michael G. Gardner, Peter Geissler, Graeme R. Gillespie, Frank Glaw, Matthew J. Greenlees, Oliver W. Griffith, L. Lee Grismer, Margaret L. Haines, D. James Harris, S. Blair Hedges, Rod A. Hitchmough, Conrad J. Hoskin, Mark N. Hutchinson, Ivan Ineich, Jordi Janssen, Gregory R. Johnston, Benjamin R. Karin, J. Scott Keogh, Fred Kraus, Matthew LeBreton, Petros Lymberakis, Rafaqat Masroor, Peter J. McDonald, Sven Mecke, Jane Melville, Sabine Melzer, Damian R. Michael, Aurelien Miralles, Nicola J. Mitchell, Nicola J. Nelson, Truong Q. Nguyen, Cristiano de Campos Nogueira, Hidetoshi Ota, Panayiotis Pafilis, Olivier S. G. Pauwels, Ana Perera, Daniel Pincheira-Donoso, Robert N. Reed, Marco A. Ribeiro-Junior, Julia L. Riley, Sara Rocha, Pamela L. Rutherford, Ross A. Sadlier, Boaz Shacham, Glenn M. Shea, Richard Shine, Alex Slavenko, Adam Stow, Joanna Sumner, Oliver J. S. Tallowin, Roy Teale, Omar Torres-Carvajal, Jean-Francois Trape, Peter Uetz, Kanishka D. B. Ukuwela, Leonie Valentine, James U. Van Dyke, Dylan van Winkel, Raquel Vasconcelos, Miguel Vences, Philipp Wagner, Erik Wapstra, Geoffrey M. While, Martin J. Whiting, Camilla M. Whittington, Steve Wilson, Thomas Ziegler, Reid Tingley, Shai Meiri
Summary: Despite improved knowledge of the conservation status of the world's skinks, around 20% of species are threatened with extinction due to habitat loss, invasive species, and resource use, with most listed as endangered primarily due to their small geographic ranges. While 42% of species have stable population trends, 14% are experiencing declining populations.
BIOLOGICAL CONSERVATION
(2021)
Article
Evolutionary Biology
Damien Esquerre, J. Scott Keogh, Diego Demangel, Mariana Morando, Luciano J. Avila, Jack W. Sites, Francisco Ferri-Yanez, Adam D. Leache, Alfaro Michael
Summary: Understanding the reasons behind the heterogeneity among gene trees can improve the accuracy of species trees. This study examines the phylogenomics of a group of South American lizards and finds high levels of discordance between different types of DNA sequences, which can be attributed to extensive incomplete lineage sorting and introgression. These findings shed light on the historical processes that have influenced the evolution of these lizards in the context of Andean orogeny and glacial cycles.
SYSTEMATIC BIOLOGY
(2022)
Article
Behavioral Sciences
Daniel Hoops, Martin J. Whiting, J. Scott Keogh
Summary: This study examines the volumes of habenular subregions in Australian agamid lizards and finds that sexual selection influences the size of the habenula, potentially related to increased aggression and reproductive drive.
BRAIN BEHAVIOR AND EVOLUTION
(2022)
Article
Ecology
Carlos J. Pavon-Vazquez, Ian G. Brennan, Alexander Skeels, J. Scott Keogh
Summary: The study utilized large datasets and new methodological approaches to evaluate the impact of biotic and abiotic factors on the diversification of monitor lizards. The results revealed multiple instances of endemic radiation in the Indo-Australasia region, with incumbency effects partially explaining patterns in biotic exchange between Australia and New Guinea.
Article
Multidisciplinary Sciences
Martin J. Whiting, Brenden S. Holland, J. Scott Keogh, Daniel W. A. Noble, Katrina J. Rankin, Devi Stuart-Fox
Summary: The study found that Jackson's chameleons introduced to Hawaii experienced pronounced character release of color signals, displaying more conspicuous social color signals during male contests and courtship, being less cryptic in response to bird and snake predators, and showing greater change between display and antipredator color states.
Article
Biochemistry & Molecular Biology
Frederick R. Jaya, Jessie C. Tanner, Michael R. Whitehead, Paul Doughty, J. Scott Keogh, Craig C. Moritz, Renee A. Catullo
Summary: When closely related species come into contact via range expansion, selection favors minimizing costly interspecies reproductive interactions. In a study on a toadlet species complex from northern Australia, population genomic data revealed the geographic origin and secondary contact, providing evidence for reproductive character displacement following range expansion.
Article
Biochemistry & Molecular Biology
Carlos J. Pavon-Vazquez, Damien Esquerre, Alison J. Fitch, Brad Maryan, Paul Doughty, Stephen C. Donnellan, J. Scott Keogh
Summary: The combination of genomic and morphological data can better elucidate evolutionary history and propose species delimitation hypotheses. This study used extensive data to investigate the evolutionary history of ridge-tailed monitors, identifying genetic structure and geographically clustered populations. The study proposes a new taxonomic scheme and highlights the importance of large datasets in understanding admixture patterns, biogeographic history, and species limits.
MOLECULAR PHYLOGENETICS AND EVOLUTION
(2022)
Article
Ecology
Sarin Tiatragul, Alexander Skeels, J. Scott Keogh
Summary: This study quantified the relationship between diversification rates and aridity, and reconstructed the paleoenvironments of Australian blindsnakes. The results showed that as Australia became more arid, diversification rates of blindsnakes decreased. The study also highlighted the importance of both arid and tropical biomes in diversification.
JOURNAL OF BIOGEOGRAPHY
(2023)
Article
Ecology
Carlos J. Pavon-Vazquez, Damien Esquerre, J. Scott Keogh
Summary: In this study, the researchers investigated the role of postnatal ontogenetic development in the morphological diversification of Paleoanguimorpha, a clade with extreme body size disparity. They found that heterochrony likely plays a major role in morphological divergence at shallow evolutionary scales, while changes in the magnitude and direction of ontogenetic change are mainly found between major clades. Some patterns of ontogenetic variation and morphological disparity appear to reflect ontogenetic transitions in habitat use. The study highlights the evolutionary lability and adaptability of postnatal ontogeny and how different evolutionary shifts in ontogeny contribute to the generation of morphological diversity at different evolutionary scales.
BMC ECOLOGY AND EVOLUTION
(2022)
Meeting Abstract
Zoology
M. Vidal-Garcia, J. Marce-Nogue, M. Marchini, J. Fortuny, T. L. Semple, P. Cooper, J. S. Keogh
INTEGRATIVE AND COMPARATIVE BIOLOGY
(2021)