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

Published: Jan. 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.

Language: Английский

---

Distribution of strontium isotopes (87Sr/86Sr) in surface waters of the Amazon basin: A basis for studies on provenance

The Science of The Total Environment, Journal Year: 2025, Volume and Issue: 965, P. 178630 - 178630

Published: Jan. 28, 2025

Language: Английский

---

Evaluating Biodiversity Criteria in Green Building Rating Schemes: Toward ‘Nature Positive’ Development

Sustainable Development, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 14, 2025

ABSTRACT Aiming for a ‘nature positive’ future, built environment professionals increasingly adopt green building schemes as their roadmap. We review the most widely adopted rating globally, focusing on evaluating criteria biodiversity action. highlight key shortcomings in schemes, including that do not specify objectives (85%), lack monitoring plans (47%), ecological connectivity (76%) and allocate < 10% of available points to (72%). Most focus mitigating harm (91%) or compensating unavoidable impacts via offsetting solution (3.4%) rather than rewarding positive, regenerative approaches bring nature back into urban areas. These findings critical gaps how address biodiversity, particularly given call within nature‐positive agenda. suggest re‐evaluating transforming specific aspects strategies. are improvements evolution toward approaches.

Language: Английский

---

Modeling Future Tree Species Distributions Under Climate Change to Guide Restoration Planning: Application to the Brazilian Amazon

Published: Jan. 1, 2025

Language: Английский

---

Integrating Strategies Aimed at Biodiversity and Water Resource Sustainability in the Amazonian Region

Sustainability, Journal Year: 2025, Volume and Issue: 17(9), P. 4010 - 4010

Published: April 29, 2025

The Amazonian region comprises a set of ecosystems that play an essential role in stabilizing global climate and regulating carbon water cycles. However, several environmental issues anthropogenic origin threaten stability this region: agribusiness, illegal mining, timber exports, pesticide use, biopiracy, among others. These actions lead to deforestation, soil erosion, fauna biodiversity loss, resource contamination, land conflicts, violence against indigenous peoples, epidemics. present study aims feature the current degradation process faced by biome identify strategic alternatives based on science inhibit minimize its resources. This applied research, systematic review, highlighted complexity, fragility, importance functioning ecosystem. Although activities such as mining agriculture notoriously cause degradation, research focused scenarios degradation. dynamics Amazon associated with human activity change advancement were also described. Ultimately, emphasizes that, given invaluable Amazon’s natural resources for balance food security, threats endanger sustainability. Beyond well-known human-induced impacts forest life, findings highlight need strategies integrate conservation, sustainable management, public policies region’s development. strategies, supported partnerships, include reducing deforestation burning, promoting education, engaging local communities, enforcing policies, conducting continuous monitoring using satellite remote sensing technology.

Language: Английский

---

Borderless Lizards: Unveiling Overlooked Records and the Expanding Invasion of Anolis sagrei in Ecuador

Diversity, Journal Year: 2025, Volume and Issue: 17(5), P. 339 - 339

Published: May 8, 2025

We evaluated the global distribution of Anolis sagrei based on bibliographic records, GBIF, and iNaturalist data. Native to Cuba Bahamas, this lizard has spread across mainland America, particularly in Caribbean, Central parts U.S. It also been introduced Asia, according observations, it recorded Israel, Canada, northern South America. This species is especially abundant Caribbean southeastern U.S., with high concentrations records indicating a significant range expansion. In Ecuador, A. along coast Amazon, occurrences Esmeraldas, Manabí, Guayas, Francisco de Orellana, for first time Zamora Chinchipe (southern Amazon), specifically El Pangui. The capture 10 individuals confirmed their morphology, showing similarities populations from Honduras but differences scalation body size. fourth toe lamellae 29 33, consistent those populations, while dorsal ventral scales show variation (dorsal: 11–22, ventral: 10–25). Climate change favors its by enabling colonization new habitats. As an invasive species, threatens local biodiversity, highlighting need monitoring control Amazonian Ecuador. An expanded abstract Spanish available, intended decision-makers.

Language: Английский

---

The genomic landscape of spider monkeys and northern muriquis from a conservation perspective

bioRxiv (Cold Spring Harbor Laboratory), Journal Year: 2025, Volume and Issue: unknown

Published: March 10, 2025

Abstract Background Most populations of spider monkeys ( Ateles ) and muriquis Brachyteles ), two Neotropical primate genera, are under severe anthropogenic threats. Yet, taxon-wide population-level studies leveraging their degree endangerment linked to genetic diversity patterns demographic history lacking. To properly address this, there is a need expand from morphological marker-based studies. Results We generated high-coverage genome sequencing for 58 individuals sampled across 8 Atelidae species, in the first population-wide study all extant monkey wild captivity, alongside northern hypoxanthus ). Additionally, we present high-contiguity reference hybridus . Here, observe overall levels load analyzed do not align IUCN category. Moreover, show that wild, higher compared captive analyzed. Then, depict main trans cis-Andean sister clades , further structure dynamics outlined by Madeira River latter clade. Lastly, find genes highly divergent regions between B. involved central nervous system development photorreception. Conclusions Our shows i) lack concordance extinction risk these populations, suggestive recent strong external drivers; ii) increased contrast effective management, indicating mostly past events; iii) agrees with common biogeographical iv) divergence potentially distinct environmental light levels.

Language: Английский

---

Odonata responses to dispersal and niche processes differ across Amazonian endemism regions

Insect Conservation and Diversity, Journal Year: 2024, Volume and Issue: 17(6), P. 988 - 1000

Published: June 28, 2024

Abstract Niche and dispersal‐based processes govern freshwater communities, such as aquatic insects, shaping their distribution establishment in the environment. So, we aimed to address relative influence of niche on Odonata diversity Amazonian systems, species dispersal functional traits longitudinal latitudinal ranges. We used Dispersal‐Niche Continuum Index (DNCI) test (i) regions more distant would present a prevalence processes, (ii) different patterns come from two suborders; by applying generalised linear models, tested (iii) dispersal‐related suborders midpoints species. found that had lower values pairwise Dispersal–Niche Continuum, mainly for Zygoptera, corroborating our first hypothesis. Moreover, Zygoptera also presented lowest absolute Anisoptera joint agreeing with second Only significant association between midpoints, third Our results indicated which can be explained massive geographical barriers, rivers, narrow physiological ecological tolerance. demonstrated scenario presence rivers may explain. A better understanding prevalent predictors how ability governs has conservational implications.

Language: Английский

---

The small and inconspicuous majority: Revealing the megadiversity and historical biogeography of the Pristimantis unistrigatus species group (Anura, Strabomantidae)

Molecular Phylogenetics and Evolution, Journal Year: 2024, Volume and Issue: 201, P. 108203 - 108203

Published: Sept. 19, 2024

Language: Английский

---

The Interaction Between the Linnean and Darwinian Shortfalls Affects Our Understanding of the Evolutionary Dynamics Driving Diversity Patterns of New World Coralsnakes

Journal of Biogeography, Journal Year: 2024, Volume and Issue: unknown

Published: Sept. 22, 2024

ABSTRACT Aim In this study, we sought to understand how the Linnean shortfall (i.e., lack of knowledge about species taxonomy) interacts with Darwinian phylogenetic relationships among species), which potentially jeopardises geographical patterns in estimates speciation rates. Location New World. Taxon Coralsnakes (Serpentes: Elapidae). Methods We created an index taxonomic uncertainty (ITU) that measures likelihood current being split after undergoing future revisions. The ITU was used simulations where higher had a having their branches split, generating new hypothetical along geographic ranges. estimated rates before and taxonomically uncertain species. Results found high number coralsnake display substantial uncertainty, positively correlated latitude species' range centroid. based on currently available data have weak relationship latitude. However, incorporating into phylogeny, detect positive correlation between rate Main Conclusions observed change following incorporation highlights such can undermine empirical evaluation rates, revealing interaction latitudinal gradient diversity gradient. Given changes alter recognised as valid over time, our study need incorporate macroecological macroevolutionary studies, enhancing robustness inferred from these data.

Language: Английский

---