Parallel Signatures of Diet Adaptation in the Invasive Common Myna Genome DOI
Kamolphat Atsawawaranunt, Katarina C. Stuart, Annabel Whibley

et al.

Molecular Ecology, Journal Year: 2024, Volume and Issue: 34(2)

Published: Dec. 13, 2024

Invasive species offer uniquely replicated model systems to study rapid adaptation. The common myna (Acridotheres tristis) has been introduced over a dozen countries and is classified as one of the most invasive birds in world. Their multiple invasions provide an opportunity identify repeated adaptation, populations originated from source populations. We compared whole-genome resequencing data 80 individuals four native seven populations, representing two independent introduction pathways. Results different selection scan methods were combined identified strongly selected region on chromosome 8 that spans copies AMY2A, part alpha-amylase gene family, putative ncRNA insertion-deletion structural variant (SV) contains ERVK transposable element (TE). Outlier SNPs SV are polymorphic but fixed or close-to-fixed pathways, with fixation same alleles lineages providing evidence for parallel standing variation. Intriguingly, second copy AMY2A non-conservative missense mutation at phylogenetically conserved site. This mutation, alongside variation SV, TE ncRNA, possible routes changes protein function expression. associated human commensalism house sparrows, genes this family have linked adaptation high-starch diets humans dogs. illustrates value analyses within across understand molecular level.

Language: Английский

Predicting climate-driven habitat dynamics of adjutants for implementing strategic conservation measures in South and Southeast Asian landscape DOI Creative Commons
Imon Abedin, Tanoy Mukherjee, Hilloljyoti Singha

et al.

Scientific Reports, Journal Year: 2025, Volume and Issue: 15(1)

Published: Feb. 18, 2025

The storks (Ciconiiformes: Ciconiidae) are a fascinating group of birds known for their tall, wading stance, long legs, extended necks, and strong bills. South Southeast Asian region boasts the most diverse population storks, necessitating immediate conservation efforts to protect habitats save them from escalating threats climate change. Within genus Leptoptilos, three distinct species exist, two which—the Greater Adjutant (Leptoptilos dubius) Lesser javanicus)—have garnered attention as 'Near-Threatened' according IUCN Red List. However, assessment overlooks crucial aspects like ramifications climatic shifts anthropogenic-induced habitat fragmentation. Hence, this study endeavors assess impacts via an ensemble approach distribution modeling. findings unveil alarming trends both adjutants across Asia. L. dubius is projected undergo severe decline over 95% all future scenarios (SSP245 SSP585 in time periods) its current suitable extent 38,686 km2, which represents only 5.91% total extent. On contrary, javanicus experiences spatial relocation towards Asia under SSP245 scenarios, resulting 20% present range 239,490 accounts 22.59% range. Furthermore, fragmentation, propelled by alterations, severe, with losing numerous viable patches entirely experiencing discontinuity habitat. given overlapping ranges adjutant species, scenario yields niche overlap value 0.370. Therefore, advocates reassessment andL. dubius, urging threatened category. strategic measures proposed study, involving local communities, non-governmental organizations, governmental entities, safeguard these remarkable avian species.

Language: Английский

Citations

1
Fragile futures: Evaluating habitat and climate change response of hog badgers (Mustelidae: Arctonyx) in the conservation landscape of mainland Asia DOI Creative Commons
Imon Abedin, Tanoy Mukherjee, Ahran Kim

et al.

Ecology and Evolution, Journal Year: 2024, Volume and Issue: 14(8)

Published: Aug. 1, 2024

Abstract The small mammalian fauna plays pivotal roles in ecosystem dynamics and as crucial biodiversity indicators. However, recent research has raised concerns about the decline of species due to climate change. Consequently, significant attention is directed toward studying various big flagship for conservation. mammals such hog badgers (Mustelidae: Arctonyx ) remain understudied regarding impacts change Asia. present study offers a comprehensive analysis effects on two mainland badger species, utilizing ensemble distribution modeling. Findings reveal concerning outcomes, only 52% IUCN extent deemed suitable Great Hog Badger ( collaris mere 17% ideal Northern albogularis ). Notably, projections suggest potential reduction over 26% areas both under future scenarios, with most severe anticipated high‐emission scenario SSP585. These declines translate into evident habitat fragmentation, particularly impacting A. , whose patches shrink substantially, contrasting relatively stable . despite their differences, niche overlap reveals an intriguing increase between indicating ecological shifts. underscores importance integrating fragmentation considerations conservation strategies, urging reassessment status insights gained from this are improving protection measures by ensuring adequate legal safeguards maintaining corridors viable patches, which essential across Furthermore, emphasizing urgency proactive efforts, countries habitats can help safeguard these ecosystems detrimental

Language: Английский

Citations

6
Habitat Loss in the IUCN Extent: Climate Change-Induced Threat on the Red Goral (Naemorhedus baileyi) in the Temperate Mountains of South Asia DOI Creative Commons
Imon Abedin, Tanoy Mukherjee, Joynal Abedin

et al.

Biology, Journal Year: 2024, Volume and Issue: 13(9), P. 667 - 667

Published: Aug. 27, 2024

Climate change has severely impacted many species, causing rapid declines or extinctions within their essential ecological niches. This deterioration is expected to worsen, particularly in remote high-altitude regions like the Himalayas, which are home diverse flora and fauna, including mountainous ungulates. Unfortunately, of these species lack adaptive strategies cope with novel climatic conditions. The Red Goral (Naemorhedus baileyi) a cliff-dwelling classified as “Vulnerable” by IUCN due its small population restricted range extent. most all goral residing temperate mountains northeastern India, northern Myanmar, China. Given population, this highly threatened climate habitat disruptions, making mapping modeling crucial for effective conservation. study employs an ensemble approach (BRT, GLM, MARS, MaxEnt) distribution assess distribution, suitability, connectivity addressing critical gaps understanding. findings reveal deeply concerning trends, model identified only 21,363 km2 (13.01%) total extent suitable under current limited alarming, it leaves very little refuge thrive. Furthermore, situation compounded fact that around 22.29% falls protected areas (PAs), further constraining species’ ability survive landscape. future projections paint even degraded scenarios, predicted decline over 34% excessive fragmentation In addition, present identifies precipitation seasonality elevation primary contributing predictors species. nine designated transboundary PAs among them highlight role supporting survival time. Moreover, Dibang Wildlife Sanctuary (DWLS) Hkakaborazi National Park revealed largest scenario. highest mean was found between DWLS Mehao (0.0583), while lowest observed Kamlang Namdapha (0.0172). also suggests strategic management planning vital foundation research conservation initiatives, aiming ensure long-term natural habitat.

Language: Английский

Citations

6
Habitat Suitability Analysis for Luehdorfia chinensis Leech, 1893 (Lepidoptera: Papilionidae) in the Middle and Lower Yangtze River: A Study Based on the MaxEnt Model DOI Creative Commons
Anqi Chen, Biyu Liu, Rui Zhou

et al.

Insects, Journal Year: 2025, Volume and Issue: 16(4), P. 396 - 396

Published: April 9, 2025

L. chinensis is a National Grade II Protected Animal in China, and predicting its suitable habitats the middle lower reaches of Yangtze River crucial for developing effective conservation strategies. This study uses methods such as MaxEnt model to predict region, providing scientific basis species conservation. The results show that AUC value 0.989, indicating excellent predictive performance. Under current climatic conditions, area highly 75.1 × 103 km2, accounting 8.8% total region. However, under SSP2-4.5 climate scenario, predicted indicate general decline species. change signals survival will face significant risks future, highlighting urgent need develop implement scientifically measures.

Language: Английский

Citations

0
The genome of a globally invasive passerine, the common myna, Acridotheres tristis DOI Creative Commons
Katarina C. Stuart, Rebecca N. Johnson, Richard E. Major

et al.

DNA Research, Journal Year: 2024, Volume and Issue: 31(2)

Published: Jan. 1, 2024

Abstract In an era of global climate change, biodiversity conservation is receiving increased attention. Conservation efforts are greatly aided by genetic tools and approaches, which seek to understand patterns diversity how they impact species health their ability persist under future regimes. Invasive offer vital model systems in investigate questions regarding adaptive potential, with a particular focus on changes effective population size interact novel selection The common myna (Acridotheres tristis) globally invasive passerine excellent for research both into the persistence low-diversity populations mechanisms biological invasion. To underpin invasion genetics this species, we present genome assembly myna. We describe genomic landscape including wide allelic diversity, methylation, repeats, recombination rate, as well examination gene family evolution. Finally, use demographic analysis identify that some native regions underwent dramatic increase between two most recent periods glaciation, reveal artefactual impacts bottlenecks analysis.

Language: Английский

Citations

3
Predicting current and future habitats of Adjutants under climate change for implementing strategic conservation measures in South and Southeast Asian landscapes DOI Creative Commons
Imon Abedin, Tanoy Mukherjee, Hilloljyoti Singha

et al.

Research Square (Research Square), Journal Year: 2024, Volume and Issue: unknown

Published: June 3, 2024

Abstract The storks (Ciconiiformes: Ciconiidae) represent a captivating avian group distinguished by their heavy-wading nature, long legs, elongated necks, and robust bills. South Southeast Asian region boasts the most diverse population of storks, necessitating immediate conservation efforts to preserve habitats shield them from escalating threats global warming. Within genus Leptoptilos, three distinct species exist, two which—the Greater Adjutant (Leptoptilos dubius) Lesser javanicus)—have garnered attention as threatened according IUCN Red List. Nevertheless, recent strides in localized have prompted tagging off these imperiled ‘Near-Threatened’ category, citing upswings. However, assessment overlooks crucial aspects like ramifications climatic shifts anthropogenic-induced habitat fragmentation. Hence, this study endeavors assess impacts via an ensemble approach distribution modeling. findings unveil alarming trends for both adjutants across Asia. (GA) is projected undergo severe decline over 95% all future scenarios (SSP245 SSP585 time periods) its current suitable extent 38,686 km2, which represents only 5.91% total extent. On contrary, (LA) experiences spatial relocation towards Asia under SSP245 scenarios, resulting 20% present range 239,490 accounts 22.59% range. Furthermore, fragmentation, propelled alterations, severe, with GA losing numerous viable patches entirely LA experiencing fragmentation habitat. given overlapping ranges adjutant species, scenario yields niche overlap value 0.370. Therefore, advocates reassessment LA, urging category. strategic measures are proposed study, involving local communities, non-governmental organizations, governmental entities, safeguard remarkable species.

Language: Английский

Citations

0
Population Genetics and Invasion History of the European Starling Across Aotearoa New Zealand DOI Open Access

Brent M. Thompson,

Kamolphat Atsawawaranunt, Melissa C. Nehmens

et al.

Molecular Ecology, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 22, 2024

The expansion of human settlements over the past few centuries is responsible for an unprecedented number invasive species introductions globally. An important component biological invasion management understanding how introduction history and postintroduction processes have jointly shaped present-day distributions patterns population structure, diversity adaptation. One example a successful invader European starling (Sturnus vulgaris), which was intentionally introduced to numerous countries in 19th century, including Aotearoa New Zealand, where it has become firmly established. We used reduced representation sequencing characterise genetic structure comparing that present sampling locations native range Australian range. we found suggested restricted gene flow from majority Zealand northmost location (Auckland). also profiled bottlenecks shared outlier genomic regions, supported historical accounts translocations between both subpopulations provided evidence documented translocation events were more likely been successful. Using these results as well historic demographic patterns, demonstrate analysis complements even well-documented histories better understand processes, with direct implications contemporary informing management.

Language: Английский

Citations

0
Parallel Signatures of Diet Adaptation in the Invasive Common Myna Genome DOI
Kamolphat Atsawawaranunt, Katarina C. Stuart, Annabel Whibley

et al.

Molecular Ecology, Journal Year: 2024, Volume and Issue: 34(2)

Published: Dec. 13, 2024

Invasive species offer uniquely replicated model systems to study rapid adaptation. The common myna (Acridotheres tristis) has been introduced over a dozen countries and is classified as one of the most invasive birds in world. Their multiple invasions provide an opportunity identify repeated adaptation, populations originated from source populations. We compared whole-genome resequencing data 80 individuals four native seven populations, representing two independent introduction pathways. Results different selection scan methods were combined identified strongly selected region on chromosome 8 that spans copies AMY2A, part alpha-amylase gene family, putative ncRNA insertion-deletion structural variant (SV) contains ERVK transposable element (TE). Outlier SNPs SV are polymorphic but fixed or close-to-fixed pathways, with fixation same alleles lineages providing evidence for parallel standing variation. Intriguingly, second copy AMY2A non-conservative missense mutation at phylogenetically conserved site. This mutation, alongside variation SV, TE ncRNA, possible routes changes protein function expression. associated human commensalism house sparrows, genes this family have linked adaptation high-starch diets humans dogs. illustrates value analyses within across understand molecular level.

Language: Английский

Citations

0