Stress gradients structure spatial variability in coastal tidal marsh plant composition and diversity in a major Pacific coast estuary DOI Creative Commons
Lyndsay L. Rankin, Scott F. Jones, Christopher N. Janousek

et al.

Frontiers in Ecology and Evolution, Journal Year: 2023, Volume and Issue: 11

Published: Nov. 21, 2023

Understanding the drivers of variability in plant diversity from local to landscape spatial scales is a challenge ecological systems. Environmental gradients exist at several and can be nested hierarchically, influencing patterns complex ways. As community dynamics influence ecosystem function, understanding across space paramount for predicting potential shifts function global change. Determining which stress vegetation composition crucial inform management restoration tidal marshes specific functions. Here, we analyzed 51 San Francisco Bay Estuary, California, USA. We used model-based compositional analysis rank abundance curves quantify environmental (elevation/tidal frame position, distance channel, channel salinity) species trait (species form, wetland indicator status, native status) influences on marsh site estuary scales. While impacts varied by their relationships each other, overall increased strength Relative was important structuring these communities even with limited pools dominated few species. Rank revealed different structures region higher evenness plots adjacent freshwater channels. By identifying interactions (species–species, species–environment, environment–trait) multiple (local, landscape), begin understand how measurements could interpreted conservation land decisions.

Language: Английский

A‐Islands: A Vascular Plant Dataset for Biodiversity Research and Species Monitoring on Australian Continental Islands DOI Creative Commons
Julian Schrader, David Coleman,

Ian Abbott

et al.

Journal of Vegetation Science, Journal Year: 2025, Volume and Issue: 36(2)

Published: March 1, 2025

ABSTRACT Aims Australia's coastline is fringed by more than 8000 continental islands. These islands feature a diverse array of landforms, rock and soil types geological origins. Some these are among the least invaded, most pristine habitats in Australia support high plant diversity. Here, we present new Australia‐wide curated dataset for species occurrences on Results Combining information from 1349 lists floras, A‐Islands includes data > 6500 844 ranging size 18 m 2 to 4400 km , exhibiting different degrees isolation mainland, spanning all major Australian climate zones. Of these, 251 have been repeatedly sampled up 11 times, making it possible investigate temporal compositional change. open access will be continuously updated. Its simple structure, consisting three comma‐separated files allows easy integration with other global plant‐occurrence databases can serve as repository island research Australia. Conclusions Knowing which occur provide opportunities future research, including studying changes biodiversity turnover within archipelagos, tests classical biogeography theory, baseline ecological monitoring conservation.

Language: Английский

Citations

1
Factors that shape large‐scale gradients in clonality DOI Creative Commons
Hongxiang Zhang, Si‐Chong Chen, Stephen P. Bonser

et al.

Journal of Biogeography, Journal Year: 2023, Volume and Issue: 50(5), P. 827 - 837

Published: March 1, 2023

Abstract Aim Many plant species reproduce clonally. However, ecologists still have much to learn about the factors that shape large‐scale patterns in clonal growth and reproduction, especially southern hemisphere. We addressed this knowledge gap by quantifying relationships between reproductive mode a suite of characteristics environmental variables. Location Australia. Taxon Spermatophytes. Methods used data for 914,456 species‐site combinations (including 4116 unique species) Australia quantify bivariate probability having reproduction four 16 variables, using phylogenetic logistic regressions. also compared relative effects across variables groups through principal component analysis Results The was more strongly related than Short, herbaceous plants monocots were likely common environments with low temperatures, solar radiation, high moisture availability, net primary productivity (NPP) soil organic carbon nitrogen contents. Tall, woody eudicots tended only sexual dry impoverished environments. Main conclusions Our results advance understanding strategy. For example, fact clonality is shorter, suggests can be added traits align on fast‐slow continuum. tightly correlated NPP nutrients climatic extremes variations may better understood as strategy population expansion resource abundant sites assurance under stress.

Language: Английский

Citations

12
From α- to β- diversity: Understanding the historical, present, and future diversity patterns of Fagaceae in Southwestern China DOI Creative Commons
Bikram Pandey, Fengying Zhang, Basu Dev Poudel

et al.

Heliyon, Journal Year: 2025, Volume and Issue: 11(2), P. e41474 - e41474

Published: Jan. 1, 2025

Language: Английский

Citations

0
Open data for biogeography research of the genus Metrosideros across the south-central Pacific region DOI Creative Commons
Thomas R. Etherington,

Murray I. Dawson,

A.-M. Sutherland

et al.

Pacific Conservation Biology, Journal Year: 2025, Volume and Issue: 31(2)

Published: March 19, 2025

Context Mapping the distribution of species from genus Metrosideros is crucial for developing surveillance and management plans associated with conservation in response to issues such as rapid ‘ōhi‘a death spread south-central Pacific region. Aims To support this endeavour, we recognised there was a need open reliable geographic information system data on island locations, extents, occurrence species. Methods Using an science framework, reviewed six sources five availability, accuracy, licencing criteria. Key results OpenStreetMap emerged optimal location data, offering precision, licencing, improved reprojected mapping purposes. The Global Biodiversity Information Facility provided majority but analysis iNaturalist revealed common mis-identifications regional biases that were corrected prior compilation. also supplemented by vegetation plot HAVPlot sPlotOpen providing key additional some islands. Conclusions Citizen via formed core compiled datasets. While crowdsourced can have quality issues, curatorial effort these datasets will be significant scalable into future. Implications All GIS are made openly available permissive licences better future biogeographical research

Language: Английский

Citations

0
Farm revegetation has substantial potential to improve biodiversity outcomes DOI Creative Commons
Karel Mokany, Hugh M. Burley, Chris Ware

et al.

Journal of Environmental Management, Journal Year: 2025, Volume and Issue: 380, P. 125174 - 125174

Published: April 1, 2025

Agricultural expansion and intensification has caused habitat loss, contributing to the current biodiversity crisis. Reliable, efficient consistent information at farm-scale is critical understand magnitude of recent changes in inform future management actions aimed reversing historical declines. We apply a habitat-based assessment approach examine potential for grazing farms across Australia improve outcomes by revegetating 10 % farm area. Fourteen case-study distributed with diverse attributes were assessed, including an analysis likely benefits 30 years after commencing hypothetical revegetation scenario, within context estimates changes. From 2004 2020, three indicators considered decreased majority farms. The scenario area was estimated substantially increase indicators, half achieve recovery all 3 greater than levels 2050. Smaller lower average ecosystem condition 2020 greatest gains from relative their indicator values 2020. Farm have substantial biodiversity, though such may be difficult time consuming achieve, emphasising importance avoiding further loss through removal or degradation native vegetation.

Language: Английский

Citations

0
A coupled eco-hydrological model to simulate vegetation condition from soil moisture deficit in a data-scarce semi-arid wetland DOI Creative Commons
Moyang Liu, Barry Croke, Serena H. Hamilton

et al.

Ecological Modelling, Journal Year: 2025, Volume and Issue: 504, P. 111099 - 111099

Published: April 2, 2025

Citations

0
Relief, soil and tree community attributes jointly shape liana community structure and diversity in a Neotropical rainforest landscape DOI
Iván Leonardo Ek‐Rodríguez, Armando Navarrete‐Segueda, Christina Siebe

et al.

CATENA, Journal Year: 2025, Volume and Issue: 255, P. 109017 - 109017

Published: April 23, 2025

Language: Английский

Citations

0
Species gain and loss per degree Celsius DOI Creative Commons
Mark Westoby, Samuel C. Andrew, Rachael V. Gallagher

et al.

Oikos, Journal Year: 2024, Volume and Issue: 2024(4)

Published: March 13, 2024

With climate zones moving poleward, it is interesting to know how rapidly species are gained and lost along temperature gradients. For the Australian native vascular flora, observed envelopes for distributions have here been calculated from data occurrence at geographical locations. each degree increase a continental gradient, numbers of crossing their cold boundary hence added warm were counted. These counts gains losses expressed as percentages flora recorded present that temperature. We report results > 700 mm rainfall pa east coast, where higher continuously distributed throughout latitudinal range. Per °C mean annual increase, 20 ± 11% (mean SD) gained, 14 4% lost, across range 9–23°C. Many further questions arise. example, which other floras might show faster or slower rates gain loss gradients? Similarly, with particular traits turnover: local dispersal such those diaspore morphologies adapted ants, compared bird dispersal?

Language: Английский

Citations

3
Diversification of Camphorosmeae (Amaranthaceae s.l.) during the Miocene-Pliocene aridification of inland Australia DOI Creative Commons

Philipp Hühn,

John McDonald,

Kelly Anne Shepherd

et al.

Perspectives in Plant Ecology Evolution and Systematics, Journal Year: 2024, Volume and Issue: 64, P. 125811 - 125811

Published: June 20, 2024

The Australian Camphorosmeae represent a monophyletic lineage that diversified to include ca. 150 spp. across 12 genera, and populate large parts of arid Australia. Tracking the origin spread this ancestrally salt drought tolerant provides additional evidence about timing evolutionary history phylogenetic assembly habitats in Using customized RADseq approach, sequence data for 104 species representing all genera were generated included dating analyses. Furthermore, habitat type occurrences preferences clades recorded. As suspected, characters used delimit current do not support groups, as analyses yielded 17 statistically supported Maireana grade crown radiation Sclerolaena. diversification is clearly linked landscape changes emerging new types Australia since ancestral element likely arrived from temperate semi-arid continental Eurasia Middle Miocene. Migration was multidirectional followed west-to-east aridification. Crown group strongest during Pliocene promoted by expansion Riverine Desert subsequent colonization newly developing habitats. Rapid range expansion, fast saturation, well periodic contraction replacement habitats, may have caused rather species-poor earlier-divergent grade, compared continuously diversifying Sclerolaena clade.

Language: Английский

Citations

3
Metabarcoding of soil environmental DNA to estimate plant diversity globally DOI Creative Commons
Martti Vasar, John Davison, Mari Moora

et al.

Frontiers in Plant Science, Journal Year: 2023, Volume and Issue: 14

Published: April 18, 2023

Traditional approaches to collecting large-scale biodiversity data pose huge logistical and technical challenges. We aimed assess how a comparatively simple method based on sequencing environmental DNA (eDNA) characterises global variation in plant diversity community composition compared with derived from traditional inventory methods.We sequenced short fragment (P6 loop) of the chloroplast trnL intron 325 globally distributed soil samples estimates those sources empirical (GBIF) or extrapolated distribution data.Large-scale patterns revealed by eDNA were broadly accordance sources. The success taxonomy assignment, overlap taxon lists between GBIF, was greatest at moderate high latitudes northern hemisphere. On average, around half (mean: 51.5% SD 17.6) local GBIF records represented databases species level, depending geographic region.eDNA gene accurately represent thus can provide basis for vegetation studies. Important experimental considerations studies include using sampling volume design maximise number taxa detected optimising depth. However, increasing coverage reference sequence would yield most significant improvements accuracy taxonomic assignments made P6 loop region.

Language: Английский

Citations

8