Towards a comprehensive geodiversity - Biodiversity nexus in terrestrial ecosystems

Earth-Science Reviews, Год журнала: 2025, Номер unknown, С. 105075 - 105075

Опубликована: Фев. 1, 2025

Язык: Английский

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Almost nothing left to lose: Suitable habitat for glacial relicts strongly declines under future climate and land use scenarios

Global Ecology and Conservation, Год журнала: 2025, Номер unknown, С. e03541 - e03541

Опубликована: Март 1, 2025

Язык: Английский

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Floristic Morpho-Ecological Strategies: Methodological Approach to Characterize Robustness of Vegetation

IntechOpen eBooks, Год журнала: 2025, Номер unknown

Опубликована: Март 19, 2025

Resistance and resilience are usually applied to discuss the functionality of systems, once both describe responses biological units environmental alterations. With this purpose, an analytical methodology focused on description functional vegetation, their potential correlation with matrices, was elaborated in present work. Comparison between amplitudes averages morpho-ecological variables, here analyzed by Fluctuation Asymmetries (FAs), fundament methodology, three different areas Portugal similar extensions from north, center, south (designed as MB, CP, FS). The results obtained described very for these study areas. discussion explained them high resistance areas, lower one (CP), recently exposed intensive forest fires. So, robustness will be sustained relevant resistance, where variability (geomorphology climatology) cause associated. In context, increases production pressions higher frequencies fires climate changes trigger significant vegetation. Changes necessary order maintain

Язык: Английский

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Geodiversity as a surrogate to inform freshwater fish diversity conservation and management

Journal of Applied Ecology, Год журнала: 2025, Номер unknown

Опубликована: Апрель 17, 2025

Abstract Geodiversity offers novel insights into biodiversity patterns and their underlying mechanisms, thereby contributing to the development of conservation strategies amid widespread environmental changes human disturbances. However, relationship between geodiversity remains largely unexplored, particularly in freshwater ecosystems. Here, we investigated extent which accounts for fish diversity across dimensions (taxonomic, functional phylogenetic) levels (alpha beta) Lancang‐Mekong River. We first compiled three datasets (i.e. occurrence records, traits phylogenetic relations) seven geofeature group discharge, waterbody, topography, terrestrial cover, landform, soil rock) catchment. Multidimensional were then calculated at alpha beta levels, respectively. Next, assessed influence on multidimensional corresponding using generalized linear mixed models (GLMMs) structural equation modelings (SEMs). showed contrasting with showing positive upriver‐downriver gradients, but negative gradients along river continuum. The spatial congruence was weak geofeatures levels. substantially accounted variance both conditional R 2 GLMMs ranging from 0.892 0.996. increase primarily driven by growing variability discharge waterbody types, while mainly influenced rising dissimilarity types. SEMs revealed that indirect effects generally weak. Synthesis applications . Our findings emphasize profound large rivers, revealing its central role shaping through enhancing heterogeneity resource availability. To sustain diversity, it is crucial maintain types preserve linkages among components. Integrating programmes provides a robust framework ensuring ecosystem resilience functionality guiding management restoration globally, face rapid changes.

Язык: Английский

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Relief, soil and tree community attributes jointly shape liana community structure and diversity in a Neotropical rainforest landscape

CATENA, Год журнала: 2025, Номер 255, С. 109017 - 109017

Опубликована: Апрель 23, 2025

Язык: Английский

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The Key Role of Vicariance for Soil Animal Biogeography in a Biodiversity Hotspot Region

Global Ecology and Biogeography, Год журнала: 2025, Номер 34(5)

Опубликована: Апрель 27, 2025

ABSTRACT Aim The Indo‐Australian Archipelago is known as a biodiversity hotspot with high levels of endemism typically ascribed to vicariance reflected by the ‘Wallace's line’. However, it unknown how has affected belowground biodiversity, especially process‐based beta diversity. Here, we relate diversity soil oribatid mite (Oribatida, Acari) assemblages geographic distance well climatic and factors explore shaping mites across 11 regions Archipelago. Location Time Period Present. Major Taxa Studied Oribatida, Acari. Methods We compiled list 2549 species in investigated level at species, genus family level. then summarised biogeographical dissimilarity patterns using ordination clustering methods compared zoological boundaries based on aboveground taxa such Wallace's, Lydekker's, Weber's Holt's lines. integrated data geography, climate reveal key drivers compositional among Mantel tests. Results Generally, was high; they formed three groups (west New Guinea, Guinea south Guinea) changing from northwest southeast. reflect integrate lines Weber, Lydekker Holt. Species turnover generally correlated distance, reflecting critical role dispersal‐limited mites. Main Conclusions Our results, for first time, demonstrate contrasting below‐ organisms Archipelago, elucidate distance‐based structured animal this region.

Язык: Английский

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Meso-scale environmental heterogeneity drives plant trait distributions in fragmented dry grasslands

The Science of The Total Environment, Год журнала: 2024, Номер 947, С. 174355 - 174355

Опубликована: Июль 3, 2024

Environmental heterogeneity shapes the patterns of resources and limiting factors therefore can be an important driver plant community composition through selection most adaptive functional traits. In this study, we explored trait-environment relationships in environmentally heterogeneous microsite complexes at meso-scale (few meters), used ancient Bulgarian Hungarian burial mounds covered by dry grasslands as a model habitat. We assessed within-site trait variability typical certain microsites with different combinations environmental parameters (mound slopes aspects, mound tops, surrounding plain grasslands) using dataset 480 vegetation plots. For calculated community-weighted means (CWMs) abundance models. found that despite their small size, on was characterized sets traits (higher canopy, higher level clonality, heavier seeds) compared to grasslands. North-facing mild conditions were perennial species light seeds, short flowering period, high proportion dwarf shrubs sharply contrasted from south-facing tops harsh conditions. Patterns predicted CWMs models differed case (perenniality, canopy height, leaf matter content), suggesting do not necessarily affect optima directly, but influence them indirectly correlating Due large relative differences parameters, contrasts among mostly consistent independent macroclimate. Mounds considerably increase ecological strategies site landscape levels. The variation topographically features resilience against climate change or stochastic disturbances, which underlines conservation importance.

Язык: Английский

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Linking geomorphological processes and wildlife microhabitat selection: nesting birds select refuges generated by permafrost degradation in the Arctic

Biogeosciences, Год журнала: 2024, Номер 21(14), С. 3401 - 3423

Опубликована: Июль 24, 2024

Abstract. To gain better insight into the cascading impact of warming-induced changes in physical landscape on biodiversity, it is crucial to understand links between abiotic and ecological processes governing species distribution. Abiotic shaping characteristics environment could significantly influence predator movements ultimately affect biodiversity through interspecific interactions. In Arctic tundra, main terrestrial (Arctic fox) avoids patches wetlands composed ponds with islets that can act as refuges for prey. Little known about geomorphological generating selected by prey species. Our study aimed identify (i) Arctic-nesting birds (ii) available landscape. Over two breeding seasons, we determined occurrence nesting (cackling goose, glaucous gull, red-throated loon) (N=396) found over a 165 km2 area Bylot Island (Nunavut, Canada). Occupied were located further away from shore (10.6 m ± 7.3 SD vs. 7.4 6.8 SD) surrounded deeper water (33.6 cm 10.6 28.1 11.5 than unoccupied islets. As expected, all three bird less accessible foxes, increasing distance depth around Based high-resolution satellite imagery field observations, ice-wedge polygon degradation generated majority (71 %) Those average farther those other processes. projected accelerate response warming, new will likely emerge landscape, but current also disappear. Changes rate may thus tundra altering predator–prey

Язык: Английский

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Environmental heterogeneity as a driver of terrestrial biodiversity on a global scale

Progress in Physical Geography Earth and Environment, Год журнала: 2023, Номер 47(6), С. 912 - 930

Опубликована: Авг. 11, 2023

To improve the effectiveness of biodiversity conservation and risk assessments under global changes, it is necessary to understand drivers terrestrial on a scale. Environmental heterogeneity an important umbrella term for different environmental factors that contribute species diversity. Previous studies have shown there are significant relationships between geodiversity scale, in features variables, indicators (EH), drive at local regional scales. However, we do not yet know how maintained, well represented taxa, where would they be more risks considering their abundances diversities. In this study, quantified EH climate, topography, land cover. We used four theoretical indexes (i.e., Fisher’s alpha, Shannon’s H, Hurlbert’s PIE, Good’s u) quantify based abundance regression models explore across organismic groups (ants, bats, birds, butterflies, frogs, ground beetles, mosquitoes, odonates, orthopterans, rodents, scarab trees) globally. found biodiversity, particularly trees three components (climate, cover), however, effects may vary among organisms. Land cover could affect ants, beetles. Furthermore, were topographic trees. Climatic had all organism groups. Our study provides new insights into by EH, indicator geodiversity.

Язык: Английский

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Rooting for Riparian Vegetation: Processes Underlying Community Composition in Boreal Ecosystems

Опубликована: Янв. 1, 2024

Riparian zones fulfil many ecosystem functions and are biodiversity hotspots, as they rich in plant species facilitate other species. They largely shaped by the flow regime, which scours away vegetation supplies propagules for regrowth. Water-borne seed dispersal, hydrochory, is an important building block of riparian communities. These can become richer throughout catchments, seeds may accumulate with distance travelled. Seeds, however, do not get deposited equally across lakes, slow-flowing reaches rapids, main geomorphological domains northern Swedish streams. Their respective types hydrogeomorphological stress co-determine establish come to form vegetation. In this thesis, I have studied how different human activities affect vegetation, dispersal environmental filtering communities boreal zones. Human both regime local habitat, but their combined effects unclear. used trap data, soil bank samples inventories study geomorphology composition. Hydrochory occurs year-round free-flowing rivers, most during peak flow. That difference larger rapids than especially at greater from waterline. banks quite composition When compared two, neither followed clear accumulation patterns or was linked variation. a catchment, found higher richness increasing stream order, differences between regulated river were limited. Degree regulation tributary remediation played role there, could be taken into account when designing management conservation.

Язык: Английский

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