Diversity, distribution and intrinsic extinction vulnerability of exploited marine bivalves

Nature Communications, Journal Year: 2023, Volume and Issue: 14(1)

Published: Aug. 15, 2023

Marine bivalves are important components of ecosystems and exploited by humans for food across the world, but intrinsic vulnerability bivalve species to global changes is poorly known. Here, we expand list shallow-marine known be worldwide, with 720 added beyond 81 in United Nations FAO Production Database, investigate their diversity, distribution extinction using a metric based on ecological traits evolutionary history. The shift richness hotspot from northeast Atlantic west Pacific, 55% families being exploited, concentrated mostly two major clades all body plans. We find that tend larger size, occur shallower waters, have geographic thermal ranges-the last confer extinction-resistance marine bivalves. However, certain regions such as tropical east temperate southeast among those high large fraction regional faunal diversity. Our results pinpoint faunas specific taxa likely concern management conservation.

Language: Английский

---

Estimating the Impact of Biodiversity Loss in a Marine Antarctic Food Web

Diversity, Journal Year: 2024, Volume and Issue: 16(1), P. 63 - 63

Published: Jan. 18, 2024

The consequences of climate change and anthropogenic stressors, such as habitat loss overexploitation, are threatening the subsistence species communities across planet. Therefore, it is crucial that we analyze impact environmental perturbations on diversity, structure function ecosystems. In this study, in silico simulations biodiversity were carried out marine food web Caleta Potter (25 de Mayo/King George Island, Antarctica), where global warming has caused critical changes abundance distribution benthic pelagic over last 30 years. We performed removal, considering their degree trophic level, including four different thresholds occurrence secondary extinctions. examined extinctions connectance, modularity stability web. found responses for these properties depending extinction criteria used, e.g., large increase rapid decrease when most connected relatively high-trophic-level removed. Additionally, studied complexity–stability relationship web, two regimes: (1) high sensitivity to small perturbations, suggesting Cove would be locally unstable, (2) persistence long-range ecosystem.

Language: Английский

---

Potential extinction cascades in a desert ecosystem: Linking food web interactions to community viability

Ecology and Evolution, Journal Year: 2024, Volume and Issue: 14(2)

Published: Feb. 1, 2024

Desert communities are threatened with species loss due to climate change, and their resistance such losses is unknown. We constructed a food web of the Mojave terrestrial community (300 nodes, 4080 edges) empirically examine potential cascading effects bird extinctions on this desert network, compared mammals lizards. focused birds because they already disappearing from Mojave, relative thermal vulnerabilities known. quantified bottom-up secondary evaluated each vertebrate group. The impact random was relatively low consequences mammal (causing greatest number losses) or reptile loss, were less likely be in trophic positions that could drive top-down apparent competition tri-tropic cascade motifs. An avian extinction year-long resident caused more than involving all for randomized ordered extinctions. Notably, we also found high interconnectivity among has formed subweb, enhancing network losses.

Language: Английский

---

The Role of B Companies in Tourism towards Recovery from the Crisis COVID-19 Inculcating Social Values and Responsible Entrepreneurship in Latin America

Sustainability, Journal Year: 2021, Volume and Issue: 13(14), P. 7763 - 7763

Published: July 12, 2021

One of the particularities companies with a social purpose is that, through their business model B companies, they have incorporated into processes necessary mechanisms to obtain, simultaneously, profits ensure existence organization in market. At same time, value generated, which address problems crisis caused by COVID-19 and environmental affecting community. The current global health economic has opened up possibility adopting focusing more on individual. Based grounded theory method, we examined 3500 Corporations Latin America, 57 were 10 countries listed Directory for America. main conclusions are that dedicated tourism responsible entrepreneurship develop inclusive, sustainable environmentally friendly economy benefit society, go beyond notion CSR move away from traditional business, as combine development growth.

Language: Английский

---

NetworkExtinction: An R package to simulate extinction propagation and rewiring potential in ecological networks

Methods in Ecology and Evolution, Journal Year: 2023, Volume and Issue: 14(8), P. 1952 - 1966

Published: June 2, 2023

Abstract Earth's biosphere is undergoing drastic reorganization due to the sixth mass extinction brought on by Anthropocene. Impacts of local and regional extirpation species have been demonstrated propagate through complex interaction networks they are part of, leading secondary extinctions exacerbating biodiversity loss. Contemporary ecological theory has developed several measures analyse structure robustness under However, a toolbox for directly simulating quantifying cascades creating novel interactions (i.e. rewiring) remains absent. Here, we present NetworkExtinction —a R package which explore propagation sequences quantify effects rewiring potential in response primary extinctions. With , integrate computational simulations develop functionality with users may visualize networks. The core functions introduced focus sequential associated extinctions, allowing user‐specified thresholds realization potential. can estimate after performing routines based algorithms. Moreover, compare number simulated against null model random In‐built visualizations enable graphing topological indices calculated deletion sequence each simulation step. Finally, user network's degree distribution fitting different common distributions. illustrate use its outputs analysing Chilean coastal marine food web. compact easy‐to‐use changes network patterns loss, Therefore, this particularly useful evaluating ecosystem responses anthropogenic environmental perturbations that produce nonrandom sometimes targeted,

Language: Английский

---

Evaluating the impacts of extinction thresholds of species in a marine food web in the Yellow Sea (China)

Biological Conservation, Journal Year: 2025, Volume and Issue: 304, P. 111050 - 111050

Published: Feb. 27, 2025

Language: Английский

---

Climate change in the coastal ocean: shifts in pelagic productivity and regionally diverging dynamics of coastal ecosystems

Proceedings of the Royal Society B Biological Sciences, Journal Year: 2022, Volume and Issue: 289(1970)

Published: March 9, 2022

Climate change has led to intensification and poleward migration of the Southeastern Pacific Anticyclone, forcing diverging regions increasing, equatorward decreasing, coastal phytoplankton productivity along Humboldt Upwelling Ecosystem, a transition zone around 31° S. Using 20-year dataset barnacle larval recruitment adult abundances, we show that striking increases in arrival have occurred since 1999 region higher productivity, while slower but significantly negative trends dominate 30° S, where years failure are now common. Rapid benthic adults result from fast recruitment–stock feedbacks following increased recruitment. Slower population declines decreased may aging still reproducing provide temporary insurance against collapses. Thus, this ocean surface waters been cooling down, climate is transforming pelagic ecosystems through altering primary which seems propagate up food web at rates modulated by stock–recruitment storage effects. effects downward warn us stocks be closer collapse than current abundances suggest.

Language: Английский

---

Temporal changes in the diet composition and trophic level of walleye pollock (Gadus chalcogrammus) inhabiting the middle-eastern coast of Korea

Marine Environmental Research, Journal Year: 2024, Volume and Issue: 198, P. 106493 - 106493

Published: April 11, 2024

Language: Английский

---

Monitoring the fabric of nature: using allometric trophic network models and observations to assess policy effects on biodiversity

Philosophical Transactions of the Royal Society B Biological Sciences, Journal Year: 2023, Volume and Issue: 378(1881)

Published: May 29, 2023

Species diversity underpins all ecosystem services that support life. Despite this recognition and the great advances in detecting biodiversity, exactly how many which species co-occur interact, directly or indirectly any is unknown. Biodiversity accounts are incomplete; taxonomically, size, habitat, mobility rarity biased. In ocean, provisioning of fish, invertebrates algae a fundamental service. This extracted biomass depends on myriad microscopic macroscopic organisms make up fabric nature affected by management actions. Monitoring them attributing changes to policies daunting. Here we propose dynamic quantitative models interactions can be used link policy compliance with complex ecological networks. allows managers qualitatively identify 'interaction-indicator' species, highly impacted through propagation interactions. We ground approach intertidal kelp harvesting Chile fishers' policies. Results allow us sets respond and/or compliance, but often not included standardized monitoring. The proposed aids design biodiversity programmes attempt connect change. article part theme issue 'Detecting causes change: needs, gaps solutions'.

Language: Английский

---

Rising Tide of Ocean Acidification

Environmental Research and Technology, Journal Year: 2024, Volume and Issue: 7(4), P. 605 - 613

Published: April 28, 2024

This comprehensive review explores the escalating environmental crisis of ocean acidification, primarily driven by anthropogenic carbon dioxide molecules (CO2) emissions. In this study, we employed a systematic methodology to collect and analyze literature relevant acidification. Our research involved an exhaustive search databases such as PubMed, Web Science, Google Scholar, Mendeley gather pertinent studies published up until 2024. addition, consulted secondary sources, including expert panel reports, enhance depth our analysis. Socio-economic ramifications are profound, particularly for fisheries, tourism, coastal communities that rely heavily on marine resources. underscores potential substantial exacerbates in these sectors, emphasizing need targeted policies management strategies mitigate adverse effects By addressing critical areas, study informs stakeholders supports development adaptive measures can sustain local economies preserve biodiversity affected regions. The economic consequences could be substantial, exacerbating global social disparities. Speculative considerations highlight significant impacts urgent proactive, coordinated action. emphasizes importance continued monitoring develop effective mitigation adaptation strategies, underscoring role cooperation innovation management. aims serve call action, highlighting urgency ecosystems their services humanity face growing challenge.

Language: Английский

---