The role of rivers in the origin and future of Amazonian biodiversity

Опубликована: Янв. 15, 2025

The rich biodiversity of Amazonia is shaped geographically and ecologically by its rivers their cycles seasonal flooding. Anthropogenic effects, such as deforestation, infrastructure development extreme climatic events, threaten the ecological processes sustaining Amazonian ecosystems. In this Review, we explore coupled evolution associated with terrestrial seasonally flooded environments, integrating geological, climatic, genetic evidence. fluvial environments are highly heterogeneous, drainage system historically dynamic continually evolving; a result, discharge, sediment load strength barriers to biotic dispersal has changed through time. Ecological affinities taxa, rearrangements variations in riverine landscape caused past climate changes have mediated high diversity found modern-day Amazonia. connected history region's provides fundamental information for mitigating current future impacts. However, incomplete knowledge about species taxonomy, distributions, habitat use, interactions occurrence patterns limits our understanding. Partnerships Indigenous peoples local communities, who close ties land natural resources, key improving generation dissemination, enabling better impact assessments, monitoring management systems at risk from evolving pressures. features biodiverse range organisms habitats. This Review explores geological characteristics role shaping region.

Язык: Английский

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Landscape and road features linked to wildlife mortality in the Amazon

Biodiversity and Conservation, Год журнала: 2023, Номер 32(13), С. 4337 - 4352

Опубликована: Авг. 18, 2023

Abstract Roads impact wildlife around the world; however, dedicated studies are lacking in many biodiverse areas such as Amazon. Identifying which species more often hit by vehicles and landscape road-related features promote roadkill is essential to guide future development ensure adequate mitigation actions. For six months, we monitored 240 km of roads Ecuadorian Amazon recorded 1125 dead vertebrates (149 species). Reptiles were most observed Class with 380 individuals (56 species), followed amphibians 278 (11 birds 259 (62 mammals 208 (20 We used Random Forest models explore role various land cover types road sinuosity on mortality. Additionally, created heatmaps visualize segments where roadkills frequent. all vertebrates, mortality was likely straight sections near rivers. The effects other variables taxa-specific. Amphibian bare soil or forest, died herbaceous-shrubby vegetation, reptile occurred high agriculture. Road (i.e., hotspots) varied across taxa. These hotspots identify further research into needed assess impacts prevent collisions. Among records, found rare threatened species, for could be a significant threat. Roadkill surveys not only aid quantifying threats informing planning but can also provide insight local biodiversity.

Язык: Английский

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Origins of old lineages in New Caledonia: A geologically informed test of the island‐hopping hypothesis

Journal of Biogeography, Год журнала: 2023, Номер 50(9), С. 1587 - 1601

Опубликована: Июнь 23, 2023

Abstract Aim Although New Caledonia (NC) is now considered an oceanic island that emerged ca. 60 Ma, a few terrestrial clades are significantly older, raising the question of origin these groups. Classically, old lineages on more recent islands hypothesized to originate through process hopping now‐vanished (i.e., island‐hopping hypothesis) or other territories. We aim test this hypothesis by studying group cockroaches with several found in NC. Location Caledonia, Zealand, Australia. Taxon Insects: Blattodea. Methods generated dated phylogeny for blattid (Blattidae and Tryonicidae) using Bayesian inference along fossil calibrations. reviewed studies palaeogeography Southwest Pacific region, including hypotheses about existence yet‐to‐be‐discovered past islands, constructed biogeographical tests accordingly. computed ancestral area estimation under different models BioGeoBEARS (DEC, BAYAREALIKE, DIVALIKE, without +J) role establishment NC fauna. Results find divergence times older than Ma two clades. show ‘old’ endemic can partially be explained indirect dispersal from Australia Zealand disappeared islands. Alternative suggest multiple independent colonizations Antarctica Main Conclusions Our results indicate may explain presence groups The nonetheless only supported period‐area which geological evidence ambiguous. work highlights both fruitful interactions between geology biogeography underlying difficulties. colonization events inferred provide additional insights into composite nature biota.

Язык: Английский

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Escaping Darwin’s shadow: how Alfred Russel Wallace inspires Indigenous researchers

Nature, Год журнала: 2023, Номер 613(7942), С. 24 - 26

Опубликована: Янв. 4, 2023

Язык: Английский

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Geogenomic Predictors of Genetree Heterogeneity Explain Phylogeographic and Introgression History: A Case Study in an Amazonian Bird (Thamnophilus aethiops)

Systematic Biology, Год журнала: 2023, Номер 73(1), С. 36 - 52

Опубликована: Окт. 6, 2023

Abstract Can knowledge about genome architecture inform biogeographic and phylogenetic inference? Selection, drift, recombination, gene flow interact to produce a genomic landscape of divergence wherein patterns differentiation genealogy vary nonrandomly across the genomes diverging populations. For instance, genealogical that arise due should be more likely occur on smaller chromosomes, which experience high whereas those tracking histories geographic isolation (reduced caused by barrier) larger sex chromosomes. In Amazonia, populations many bird species diverge introgress rivers, resulting in reticulated signals. Herein, we used reduced representation data disentangle evolutionary history 4 an Amazonian antbird, Thamnophilus aethiops, whose was associated with dynamic evolution Madeira River Basin. Specifically, evaluate whether large river capture event ca. 200 Ka, gave rise genealogies making spatially explicit predictions based processes. We first estimated chromosome-level phylogenies recovered 2 primary topologies genome. The topology (T1) most consistent population for Z-chromosome. second (T2), upon secondary contact. To support these topologies, trained convolutional neural network classify our into alternative diversification models estimate demographic parameters. best-fit model concordant T1 included between non-sister taxa. Finally, modeled levels introgression as functions chromosome length found chromosomes experienced higher flow. Given (1) genetrees supporting T2 were (2) lower (and especially Z-chromosome), argue represents rivers contact barrier loss. Our results suggest significant portion heterogeneity arises extrinsic processes such interacting intrinsic architecture. Future phylogeographic studies would benefit from accounting processes, different parts reveal contrasting, albeit complementary histories, all are relevant disentangling intricate geogenomic mechanisms biotic diversification. [Amazonia; biogeography; modeling; flow; tree; architecture; geogenomics; introgression; linked selection; network; phylogenomic; phylogeography; reproductive isolation; speciation; tree.]

Язык: Английский

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The Zonal Patterns in Late Quaternary Tropical South American Precipitation

Paleoceanography and Paleoclimatology, Год журнала: 2023, Номер 38(4)

Опубликована: Апрель 1, 2023

Abstract Speleothem oxygen isotope records (δ 18 O) of tropical South American rainfall in the late Quaternary show a zonal “South Precipitation Dipole” (SAPD). The dipole is characterized by opposing east‐west precipitation anomalies compared to present—wetter east and drier west at mid‐Holocene (∼7 ka), wetter Last Glacial Maximum (∼21 ka). However, SAPD remains enigmatic because it expressed differently western versus eastern δ O isotope‐enabled climate model simulations usually misrepresent magnitude and/or spatial pattern change. Here, we address enigma two parts. First, re‐interpret data account for upwind rainout effects that are known be pervasive America, but not always considered paleoclimate studies. Our revised interpretation reconciles with cave infiltration other proxy records, indicates centroid has migrated zonally over time. Second, using an energy balance atmospheric circulation, hypothesize migration can explained regional budget shifts, such as changing Saharan albedo associated African Humid Period, have been modeled previous This hypothesis migrating presents new framework interpreting from America may help explain predate Quaternary.

Язык: Английский

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Five decades of biogeography: A view from the Journal of Biogeography

Journal of Biogeography, Год журнала: 2022, Номер 50(1), С. 1 - 7

Опубликована: Дек. 28, 2022

The first issue of Journal Biogeography (JBI) was published by Blackwell Scientific in March 1974. Volume 1 summed to 279 pages over four issues, and its remit broad—biology, geography, palaeontology, genetics, human modification the environment, effects on biotic distributions, their medical relevance, more (Watts, 1974). Although other journals carried some biogeographical papers (e.g. see Cowell & Parker, 2004), JBI remained sole journal dedicated publishing biogeography until early 1990s when two sister titles—Biodiversity Letters Global Ecology Letters—were created accommodate growth field (Figure 1), rise global environmental concerns (Stott, 1991) momentum captured newly coined concepts such as ‘biodiversity’ 1993). These metamorphosed into now familiar titles Diversity Distributions (DDI) (GEB) late publish burgeoning studies of, respectively, biological invasions (Richardson, 1998) macroecology (Whittaker, 1999). Throughout, continued act most inclusive venue for biogeography, content shifting through years interests authors readers waxed waned. commitment represent full breadth has a constant since (Linder, 2016; Whittaker, 2005), that should be about biogeographers, biogeographers both 2016). Changes also have reflected changes publishing. JBI, example, transitioned from initial sub-A4-sized format A4 1989 2014). editorial introducing GEB noted adoption email handling reviews, encouraged submit electronic versions revised manuscripts ‘by disk’, referred website key source information; could downloaded PDF files, HTML were immediate horizon A half-decade later, ‘Online-Early’ imminent, allowing digital publication online before print issues citation using Digital Object Identifier (DOI); referral pathways, transfer articles among journals, starting take shape 2005). Around same time, Online Supporting Information enabled, which accompanied >80% decade later 2014); proportion research is >95%. Linder (2016) remarked emergence data repositories, surge relying ‘recycled’ data, need recognition authors, deposition new policies access. been part parcel suite double-edged risen prominence past decade. For Open Access publication, democratize science, predatory raises questions equity access profiteering (Carey, Linacre, 2022); speed process, can accelerate progress, exacerbates pressures ‘publish [prolifically] or perish’ degrades quality community ‘work–life’ balance (Hortal et al., 2019); ‘cascade’ reduce workload re-using peer oftentimes refer in-house open with high article processing charges 2019) balkanize science pre-publication; misunderstandings review processes exacerbate cries change may inadvertently undermine efforts maintain increase (Dawson These, Meynard 2021), continue challenge us today, point we return discussing journal's philosophy landscape—along technology, (Ladle 2015)—are expected manifest representation topics journals. Thus, invasion biology declined between 2000s 2a), though they increased during period 2b), likely influenced DDI. refocusing DDI conservation 2005 elevated distribution discipline (Richardson 2010; Whittaker 2005) taking lions' share. Other featured heavily approaches arose established roles disciplinary landscape. Island became mainstay 1980s primary outlet high-quality innovative 2008). popular phylogeography 2000s, spurred rapid series advances genetic computational methods an eponymous very highly cited book (Avise, 2000). Phylogeography substantial fraction 2010s, mirroring popularity broadly 2c), recent developments show ripe rejuvenation 2022; McGaughran 2022). addressing functional related areas last particularly noteworthy, given relatively origin many (Violle kinds observations suggest played important role setting agenda reflecting thinking inception. To pay tribute this history, compiled selected five decades virtual celebrate 50th anniversary. compilation per quinquennium JBI's inception 1974, provides sampling priority time. On occasion, these appear coincide number submissions, 1980s, island 2 10 articles. But periods mismatch; one frequent decades, but rarely yields most-highly article; contrast, species modelling over-represented most-cited lists relative publications. Intriguingly, are increasingly seeing integration together provide additional insight dynamics parallels geological genomic Ribas second presents 50 all This reveals unmistakable concentration: two-thirds 2010s. Particularly, emerges throughout (Araújo Guisan, 2006; Liu 2013; Pearson 2007; Radosavljevic Anderson, 2014), well conceptual pieces drivers diversity (Brown, 2014; Fahrig, 2013), distributions (Briggs Bowen, 2012), islands (Whittaker 2008) 2009), extent correspond saw lot traffic. sign exciting time biogeography; it structural increases accessibility due publishing, availability, analytical software, coalescing around society, combination phenomena. Whatever cause, clearly timely consequential, piquing comment curiosity. Considering together, coming years, expect join pantheon Their sometimes further develop already high-profile topics, habitat fragmentation Bradie Leung, 2017; Hanski, 2015; Leroy 2018). times highlight emerging example montane Flantua 2019; Perrigo 2020), ways conceptualizing how tackle longstanding (and new) questions, including traits sciences (Weigelt 2020; Zhao 2019). Looking forward, publications technologies applications will understanding Ariza Calderón-Sanou Farquhar 2022), advanced techniques better infer process pattern (Dupin 2017) knowledge yield greater (Matzke, Ree Sanmartín, grown metrics: almost entirety volume 1, 12 year rather than four, back-catalogue ~6000 growing, accrues tens-of-thousands citations (over 20,000 2021 alone; Web Science Publication Titles search 06 December repeat each year. speak heft intellectual stature; premier biogeographers. therefore remains committed long-standing goals served well: intellectually broad flavours Watts, 1974; 2005, 2015). Yet, there opportunity redefine approach goals. Biogeography, like ecological evolutionary sciences, tend towards atlas case (Roughgarden, 2009) synthetic world required. While might counter rules abound, often old so exceptions abound too. What modern holistic look change? And reconcile operational actionable ‘laws’ malleable planet? Through refinements scope, guidance practices, emphasized deeper, generalizable adaptable biogeography. scope statement (Supporting 1) prompts situate work explicitly ‘theoretical foundations contribute’, suggests abstract's aim conclusion. We cutting-edge without excluding consideration reveal any place, taxon creative question, clear hypotheses robust study design essential requirements, if seeks then comparison contrast required within study. patterns across studies, meta- re-analyses, rigorously apply requirement data. goals, vital contemporary serving discipline. leading encompassing considering achievements vantage our year, spy largely uncharted territory sailed seas. seldom contain bounds nor inner workings. matters, would welcome far history sciences. not representative spatial people who ask them. single measure, method scientific, diverse know best fostering pluralistic perspectives (Miller Moreover, integrating existing Mora-Soto 2021) advance encourage reimagine it. shortfalls 2015) maps ignorance (Rocchini 2011) re-imagined. Perhaps benefit ‘feeling organism’ too 2021; Keller, 1983) feeling place: conceive factors determining organisms, proxy how, what, why—from umwelten (von Uexküll, 1934)—they live where do. Biogeographical pluralism, while exercising mind encouraging multidisciplinarity, simultaneously vehicle rigour, helping conundrum falsification challenging (Brooks 2001; Craw, 1990; van Veller Brooks, Popper, 1962), susceptible logical positivism Creath, Innovative rigorous syntheses much need. relevant, must reach audience: only social context changing imperative scientific society (Lenton Latour, address several diversifying board making explicit commitments diversity, inclusion 2). current Editorial Board dynamic nature rapidly expanding intend become true reviewers whom work, colleagues outside historical By being outward looking, plan build impressive legacy attract ground-breaking help define field. maintaining respected position literature, emphasizing findings media, seek collective expertise biogeography—its multi-faceted biologic, geographical coupled nature; empiricism rich foundations—and broader general public. In set out legacy, imagining future. introduce logo renewing 3). book-end reflection Alfred Russel Wallace, his 200th birthday 08th January 2023, Ali Heaney (2022) celebration 60th anniversary MacArthur Wilson (1963) via special Also contributions career (Carvalho Vasconcelos Windsor Dawson 2023), Perspectives senior asked inspiration aforementioned ‘top 50’ collections scene future years. solicited New Techniques Future small ongoing developments. realize mark initiative It self-evident cannot understand changed geographically biased, currently begin compiling conducted countries employed at institutions those countries. followed section intended elevate historically under-represented done researchers integral local matters. multi-year initiative, begins earliest stages teams conduct research, collection, analyses writing, publication. intention support can. predicting fraught hidden variables circumstances, extrapolate predict aspects next decades. basic truism humans exact change: climate change, destruction fragmentation, over-exploitation, pollution, urbanization more. Will chronic acute? magnitude nearer lower upper estimates? impact species, ecologies, evolution, frequencies? fundamentally questions. Biogeographers excelled describing inferring causes, reconstructing ranges. challenge, however, consequences anthropogenic sufficient precision circumvent damaging outcomes. predictions thousands mostly lack validations species' detail (or more). mechanisms underlying changes, sound mechanistic occurs based traits. Rigorous comparative frameworks shared different responses taxa typically lacking under-employed phylogeographical still single-species). kind needed—beyond geology genomics, beyond modelling, include behaviour, physiology, morphology, interactions, etc.—will radical advance. Making reliable intervene effectively require descriptive experimental scales relevant globally applicable theory. Rewilding perhaps poster-child intervention, challenges. Genetic rescue, restoration biotechnological solutions gene drives cusp implementation major requirements implications. There similar existential threats potential purview Underlying them statistical, ideally mechanistic, communities function world. welcomes tackling complete problems grounded Running impossible less interesting enjoyable large talented team academic editors Wiley staff; thank you all. chief Crid Fraser, Rosie Gillespie, Holger Kreft, Christine Meynard, Jon Sadler Damaris Zurell, provided invaluable 3 initiatives. MND deeply grateful Rob Whittaker's Peter Linder's collegiality art editing comments earlier manuscript. Genevieve Horne, Emily Davies, Helen Pedersen Maggie Donnelly unwavering Wiley; Chappell technical assistance; Alex Hartnett, Alice Kallaway, Mirnalini Paramasivam, Subalakshmi Sakthivel, Salman Afroze Jordan Taylor professionalism dispositions office smoothly possible; Hoshia Rose Carmen Sherry improving production. Particular thanks bringing initiatives fruition. big Albert Lee, CS designer Wiley, great patience designing logo. no conflicts interest perceived dint Biogeography. All used generate figures presented herein deposited Dryad https://doi.org/10.5061/dryad.p5hqbzkst. Appendix S1. Please note: publisher responsible functionality supporting information supplied authors. Any queries (other missing content) directed corresponding author article.

Язык: Английский

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Habitat specialization predicts demographic response and vulnerability of floodplain birds in Amazonia

Molecular Ecology, Год журнала: 2023, Номер 33(3)

Опубликована: Ноя. 28, 2023

Abstract The annual flooding cycle of Amazonian rivers sustains the largest floodplains on Earth, which harbour a unique bird community. Recent studies suggest that habitat specialization drove different patterns population structure and gene flow in floodplain birds. However, lack direct estimate affinity prevents proper test its effects histories. In this work, we used occurrence data, satellite images genomic data (ultra‐conserved elements) from 24 species specialized variety seasonally flooded environments to classify affinities influence evolutionary histories We demonstrate birds with higher river islands dynamic have gone through more recent demographic expansion currently less genetic diversity than generalist Our results indicate there is an intrinsic relationship between environmental dynamics, influencing structure, history diversity. Within floodplains, historical landscape changes had severe impacts island specialists, making them vulnerable current future anthropogenic changes, as those imposed by hydroelectric dams Amazon Basin.

Язык: Английский

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Amazonian avian biogeography: Broadscale patterns, microevolutionary processes, and habitat-specific models revealed by multidisciplinary approaches

Ornithology, Год журнала: 2023, Номер 141(1)

Опубликована: Ноя. 24, 2023

Abstract Our understanding of Amazonian biogeography is quickly increasing, catalyzed by the growing use genomic datasets, improved knowledge species distributions, and accumulation new data on geological climatic history region. The high number in Amazonia their intricate patterns geographic distribution triggered development many diversification hypotheses that shaped historical as a discipline. Here, we present overview avian biogeographic studies Amazonia, recent advances, outstanding questions, future directions. We focus how approaches have led to novel understandings processes underpin diversity. show tools are being used establish about drivers highlight importance birds previously overlooked environments, such floodplains open vegetation enclaves. emphasize gene flow, traits, habitat affinities studying fully acknowledge complexity ecosystems history. then discuss current gaps taxonomic knowledge, with issues believe hinder our field. has been facing increasing levels forest loss due agricultural expansion, infrastructure development, mining, climate change, illegal activities weak governance. To halt biodiversity loss, it crucial increase natural species. suggest incentives for research training at institutions based region, well establishment partnerships governments, local communities, NGOs, international bring diverse communities together address questions.

Язык: Английский

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The buzz about honey-based biosurveys

npj Biodiversity, Год журнала: 2024, Номер 3(1)

Опубликована: Апрель 17, 2024

Approximately 1.8 million metric tonnes of honey are produced globally every year. The key source behind this output, the bee (Apis mellifera), works tirelessly to create delicious condiment that is consumed worldwide. finds its way into jars on store shelves contains a myriad information about biogeographical origins, such as bees it, botanical constituents, and traces other organisms or pathogens have come in contact with product producer. With ongoing threat decline overall global biodiversity loss, access ecological has become an factor preventing loss species. This review delves various molecular techniques developed characterize collective DNA harnessed within samples, how it can be used elucidate interactions between environment. We also explore these DNA-based methods for large-scale studies through environmental collected by foraging bees. Further development assist conservation detecting ecosystem perturbations, potential expanded towards critical flying pollinators.

Язык: Английский

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