Native species diversity associated with Bosque Palmeras de Ocol in the Amazonas region, Peru DOI Creative Commons

Lorenzo Culqui,

Dámaris Leiva-Tafur, Nixon Haro

et al.

Trees Forests and People, Journal Year: 2024, Volume and Issue: 16, P. 100580 - 100580

Published: May 11, 2024

The objective was to evaluate the ecology and dynamics of native species community in Bosque Palmeras de Ocol district Molinopampa, Amazonas, Peru. Six sampling points were established, which 1,569 trees belonging 47 found. Species such as Astrocaryum sp., with a relative density 10.7% an importance value index (IVI) 23.54%, Prunus 8.9% IVI 22.23%, stood out. Myrsine coriacea subsp. 2 identified key high frequency 16.21%. Density per hectare revealed values for sp. (560 individuals/ha), Nectandra (526 individuals/ha) (470 individuals/ha). distribution tree height diameter showed predominance smaller individuals, most presenting diameters less than 20 cm heights between 3 4 meters. range/abundance curve highlighted abundant species. models good fit Null Preemption distributions, low Akaike's criterion (AIC) 111.56 114.60, respectively. These findings provide detailed understanding this forest, fundamental its conservation sustainable management.

Language: Английский

North American pollen records provide evidence for macroscale ecological changes in the Anthropocene DOI Creative Commons
M. Allison Stegner, Trisha Spanbauer

Proceedings of the National Academy of Sciences, Journal Year: 2023, Volume and Issue: 120(43)

Published: Oct. 16, 2023

Recent global changes associated with anthropogenic activities are impacting ecological systems globally, giving rise to the Anthropocene. Critical reorganization of biological communities and biodiversity loss expected accelerate as change continues. Long-term records offer context for understanding baseline conditions those trajectories that beyond range normal fluctuation seen over recent millennia: Are we causing fundamentally different from in past? Using a rich dataset late Quaternary pollen records, stored open-access community-curated Neotoma database, analyzed community composition since end Pleistocene North America. We measured taxonomic richness, short-term gain, first/last appearances (FAD/LAD), abrupt change. For all analyses, incorporated age-model uncertainty accounted differences sample size generate conservative estimates. The most prominent signals elevated vegetation were during Pleistocene-Holocene transition 200 calendar years before present (cal YBP). During transition, FADs elevated, −50 cal YBP, found increases loss, FADs, LADs, changes. Taxonomic richness declined ~13,000 YBP until about 6,000 then increased present, reaching levels Pleistocene. Regionally, patterns highly variable. These results show impacts comparable landscape took place moved glacial interglacial world.

Language: Английский

Citations

9
Habitat Distribution Pattern of Rare and Endangered Plant Magnolia wufengensis in China under Climate Change DOI Open Access
Xiaodeng Shi, Qun Yin,

Ziyang Sang

et al.

Forests, Journal Year: 2023, Volume and Issue: 14(9), P. 1767 - 1767

Published: Aug. 31, 2023

Magnolia wufengensis is a newly discovered rare and endangered species endemic to China. The primary objective of this study find the most suitable distribution models (SDMs) by comparing different SDMs predict their habitat for protection introduction in China under climate change. are important tools studying patterns change, have simulation effects. Thus, identify potential M. currently 2050s (2041–2060) 2070s (2061–2080) change scenarios (representative concentration pathways RCP2.6, RCP4.5, RCP6.0, RCP8.5) China, four SDMs, Maxent, GARP, Bioclim, Domain, were first used compare predicted explore dominant environmental factors. that habitats mainly south 40° N east 97° E with high current conditions. area receiver operating characteristic (ROC) curve (AUC) (0.9479 ± 0.0080) was highest, Kappa value (0.8113 0.0228) consistency test its performance predicting best Maxent model. minimum temperature coldest month (−13.36–9.84 °C), mean quarter (−6.06–12.66 annual (≥4.49 elevation (0–2803.93 m), In scenario, areas 46.60 × 104 km2 (4.85%), 122.82 (12.79%), 96.36 (10.03%), which central southeastern be high, moderate, low suitability, respectively. will significantly (2040–2060) (2060–2080), suggesting increase high-elevation shift northeast future comparison revealed declines approximately 4.53%–29.98% highly increases 6.45%–27.09% 0.77%–21.86% moderately lowly habitats, summary, these results provide theoretical basis response protection, precise introduction, cultivation, rational site selection future.

Language: Английский

Citations

8
Bridging global knowledge gaps in biodiversity databases: a comprehensive data synthesis on tree diversity of India DOI
Muzamil Ahmad Mugal, Sajad Ahmad Wani, Firdous Ahmad Dar

et al.

Biodiversity and Conservation, Journal Year: 2023, Volume and Issue: 32(10), P. 3089 - 3107

Published: June 27, 2023

Language: Английский

Citations

7
Conservation Action Tracker: A tool to identify and monitor conservation actions for tree species DOI Creative Commons
Itxaso Quintana, Malin Rivers, Katharine Davies

et al.

Applications in Plant Sciences, Journal Year: 2024, Volume and Issue: 12(3)

Published: May 1, 2024

Abstract Premise The GlobalTree Portal, hosted by Botanic Gardens Conservation International, provides access to information on the approximately 58,000 tree species worldwide. Included in Portal is Action Tracker, a dynamic and collaborative database identify monitor conservation actions for globally. Methods Tracker collates action at level, including recovery/action plans, ex situ collections, propagation protocols, management, protection policy, education/awareness campaigns. Results To date, contains 4126 species, 2161 threatened of which 659 are classified as Vulnerable, 783 Endangered, 719 Critically Endangered. It covers least one every country; however, more needed 89% 87% 77% Endangered species. Discussion Monitoring can support prioritization scaling up practices sharing knowledge, increasing collaboration, enabling identification gaps, making available be used decision‐makers. Tracking level is, therefore, essential guide future efforts. Increasing amount data will improve tool's ability efforts avoid extinction

Language: Английский

Citations

2
Native species diversity associated with Bosque Palmeras de Ocol in the Amazonas region, Peru DOI Creative Commons

Lorenzo Culqui,

Dámaris Leiva-Tafur, Nixon Haro

et al.

Trees Forests and People, Journal Year: 2024, Volume and Issue: 16, P. 100580 - 100580

Published: May 11, 2024

The objective was to evaluate the ecology and dynamics of native species community in Bosque Palmeras de Ocol district Molinopampa, Amazonas, Peru. Six sampling points were established, which 1,569 trees belonging 47 found. Species such as Astrocaryum sp., with a relative density 10.7% an importance value index (IVI) 23.54%, Prunus 8.9% IVI 22.23%, stood out. Myrsine coriacea subsp. 2 identified key high frequency 16.21%. Density per hectare revealed values for sp. (560 individuals/ha), Nectandra (526 individuals/ha) (470 individuals/ha). distribution tree height diameter showed predominance smaller individuals, most presenting diameters less than 20 cm heights between 3 4 meters. range/abundance curve highlighted abundant species. models good fit Null Preemption distributions, low Akaike's criterion (AIC) 111.56 114.60, respectively. These findings provide detailed understanding this forest, fundamental its conservation sustainable management.

Language: Английский

Citations

2