Inconsistent response of taxonomic groups to space and environment in mediterranean and tropical pond metacommunities

Ecology, Journal Year: 2022, Volume and Issue: 104(1)

Published: Aug. 8, 2022

The metacommunity concept provides a theoretical framework that aims at explaining organism distributions by combination of environmental filtering, dispersal, and drift. However, few works have attempted multitaxon approach even fewer compared two distant biogeographical regions using the same methodology. We tested expectation temperate (mediterranean-climate) pond metacommunities would be more influenced spatial processes than tropical ones, because stronger gradients greater isolation waterbodies. pattern should different among groups organisms depending on their dispersal abilities. surveyed 30 32 mediterranean temporary ponds from Costa Rica Spain, respectively, obtained data 49 variables. characterized biological communities bacteria archaea (from water column sediments), phytoplankton, zooplankton, benthic invertebrates, amphibians birds, estimated relative role space environment organization for each group region, means variation partitioning generalized additive models. Purely effects were important in both ponds, but latter, probably due to larger limnological heterogeneity. Spatially correlated pure tropics, related higher climatic heterogeneity (e.g., restriction, surplus) acting scales. variability between taxonomic contribution factors was very wide, active, with passive, dispersers. Higher observed passive dispersers, unexplained setting, suggesting stochastic processes, unmeasured factors, or biotic interactions although this difference affected some actively dispersing (insects birds) These results, despite our limitations comparing only regions, provide support, wide variety aquatic organisms, classic view abiotic niche constraints areas tropics. heterogeneous response also points influence regional context adaptations organization.

Language: Английский

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Decapod community composition is seasonally driven by different environmental factors in an estuarine-coastal gradient (Eastern Brazil)

Regional Studies in Marine Science, Journal Year: 2025, Volume and Issue: unknown, P. 104135 - 104135

Published: March 1, 2025

Language: Английский

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Spatial-temporal distributions of macroinvertebrate communities in high-mountain tropical lakes of Ecuador

Hydrobiologia, Journal Year: 2025, Volume and Issue: unknown

Published: April 2, 2025

Language: Английский

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Efficient estimation of plant species diversity in desert regions using UAV-based quadrats and advanced machine learning techniques

Journal of Environmental Management, Journal Year: 2025, Volume and Issue: 385, P. 125614 - 125614

Published: May 6, 2025

Language: Английский

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To what extent can we predict variation of bryophyte and tracheophyte community composition at fine spatial scale along an elevation gradient?

The Science of The Total Environment, Journal Year: 2024, Volume and Issue: 926, P. 171741 - 171741

Published: March 19, 2024

Mounting evidence points to the need for high-resolution climatic data in biodiversity analyses under global change. As we move finer resolution, other factors than climate, including abiotic variables and biotic interactions play, however, an increasing role, raising question of our ability predict community composition at fine scales. Focusing on two lineages land plants, bryophytes tracheophytes, determine relative contribution climatic, non-climatic environmental drivers, spatial effects, architecture one lineage lineage, how varies along elevation gradient. The relationship between 68 2-25 m factors, was investigated by hierarchical variance partitioning across 413 2x2m plots Swiss Alps. Climatic data, although significant, contributed less model any variable considered. Community reflecting both direct unmeasured (hidden) best predictor lineage. Total explained substantially varied with elevation, underlining fact that strength species composition-environment depending conditions. increased towards high up 50 %, importance effects vegetation architecture, pointing positive aggregated distribution patterns alpine environments. In increase also observed line hypothesis a stronger control harsher Further improvements changes plant may involve implementation historical higher-resolution better describe microhabitat conditions actually experienced organisms.

Language: Английский

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International imports and climatic filtering drive compositional variation in non‐native insect establishments

Diversity and Distributions, Journal Year: 2024, Volume and Issue: 30(7)

Published: April 22, 2024

Abstract Aim Invasions of non‐native insects can have substantial impacts on agriculture, forestry, human health and biodiversity with considerable economic environmental consequences. To understand the causes these invasions, it is important to quantify relative influence principal drivers such as international imports climatic effects. Location North America, Chile, Europe, Australia, New Zealand Japan. Time Period 1881–2020. Methods evaluate contributions various factors in explaining global variation numbers insect establishments different world regions, we conducted two multivariate regression analyses temporal changes family‐level composition native ranges established species several regions. Results There were assemblages. Prior 1900, invasions dominated by scale insects, subsequently shifting a more diverse set species, except which had relatively small compositional change over time compared other Spatial was associated differences origin factors, each 26.3% 27.4% total variation, respectively. The analysis indicated that there no consistent across all Established predominantly Australasia America Chile mainly from Europe. Non‐native Europe originated Nearctic region while those Japan Australia generally multiple Climatic destination regions primary effect (66.3%) range although also effects (45.4%). Main Conclusions Geographical climate act together establishment success for six

Language: Английский

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When Do Traits Tell More Than Species about a Metacommunity? A Synthesis across Ecosystems and Scales

The American Naturalist, Journal Year: 2023, Volume and Issue: 203(1), P. E1 - E18

Published: Aug. 23, 2023

Linking species traits with the variation in assemblages across habitats has often proved useful for developing a more mechanistic understanding of distributions metacommunities. However, summarizing rich tapestry all its nuance few key ecological can also lead to an abstraction that provides less predictability than when using taxonomy alone. As further complication, taxonomic and functional diversities be inequitably compared, either by integrating taxonomic-level information into calculation how aspects communities vary or detecting spurious trait-environment relationships. To remedy this, we here synthesize analyses 80 datasets on different taxa, ecosystems, spatial scales include abundance presence/absence sites variable environmental conditions species’ traits. By treat diversity equitably, ask helps explain metacommunity structure. We found patterns explained structure response only 25% multitrait approach but up 59% single-trait approach. Nevertheless, average 19% (interquartile range = 0%–29%) showed significant signal gradients. Species-level traits, as typically collected analyzed through patterns, do not bring predictive advantages over what already holds. While our assessment limited advantage was largely true played role explaining many were used trait constructs related status, life history, mobility. propose future research directions make trait-based approaches data helpful inference ecology.

Language: Английский

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Neighbourhood landscape context shapes local species richness patterns across continents

Global Ecology and Biogeography, Journal Year: 2023, Volume and Issue: 32(6), P. 867 - 880

Published: March 25, 2023

Abstract Aim Recent studies highlight the importance of linking landscape ecology and macroecology for a better understanding broad‐scale biodiversity patterns. The “landscape context effect” denotes that species responses in focal area are shaped by neighbouring composition structure outside area. Here, we test whether effect could be pronounced at macroecological scales. Location Sub‐Saharan Africa continental China. Time period Late 20th to early 21st centuries. Taxa studied Terrestrial mammals (≥2 kg). Methods We calculated richness on basis grid cells 50 km × 100 km. used ordinary least square random forest models examine relationships between within (defined as cells, with distances 10–400 boundary given cell). variation partitioning quantify independent shared explanatory power variables, grouping body size diet. Results Landscape alone explained ≤20% richness, even when controlling correlations macroenvironmental variables (climate, productivity topography) attributes cells. Importantly, scales 100–400 ofen outweighed grid‐cell or macro‐environmental variables. was lowest small‐sized omnivores. Furthermore, found higher large herbivores sub‐Saharan than Main conclusions plays substantial role shaping local patterns regional scales, its strength varying organism diet movement needs possibilities. These findings support conservation efforts should include effective management structure, attention differing space requirements among groups. Our work also illustrates scope testing ecological hypotheses

Language: Английский

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LIES of omission: complex observation processes in ecology

Trends in Ecology & Evolution, Journal Year: 2023, Volume and Issue: 39(4), P. 368 - 380

Published: Nov. 9, 2023

Advances in statistics mean that it is now possible to tackle increasingly sophisticated observation processes. The intricacies and ambitious scale of modern data collection techniques this essential. Methodological research make inference about the biological process while accounting for has expanded dramatically, but solutions are often presented field-specific terms, limiting our ability identify commonalities between methods. We suggest a typology processes could improve translation fields aid methodological synthesis. propose LIES framework (defining terms issues Latency, Identifiability, Effort Scale) illustrate its use with both simple examples more complex case studies.

Language: Английский

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Codistribution as an indicator of whole metacommunity response to environmental change

Ecography, Journal Year: 2023, Volume and Issue: 2023(7)

Published: April 21, 2023

The landscape scale response of ecological communities to environmental drivers can be challenging efficiently summarise and differentiate from expected background turnover through time. Metacommunity structure encapsulated by fitting joint species distribution models (JSDMs) partitioning the variance explained into environmental, spatial species‐codistribution components. Here we identify how these components respond time with directed change propose changes in metacommunity as an indicator sustained directional pressure. Through simulations, declines variation codistribution could diagnose disintegration, while increases explanatory power predictors may indicate losses peripheral areas dispersal limitations. We then test results two well‐studied systems. Butterflies are known strongly responding climate change, show that over 21 years component for butterfly southern England. By contrast, birds same region thought less climatic pressure and, despite high occupancy turnover, do not clear measured this approach. Our suggest approaches have a potential compare impacts external on whole communities.

Language: Английский

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