Determinism and stochasticity in the spatial–temporal continuum of ecological communities: the case of tropical mountains DOI Creative Commons
Gabriel Khattar, Margarete V. Macedo, Ricardo Ferreira Monteiro

et al.

Ecography, Journal Year: 2021, Volume and Issue: 44(9), P. 1391 - 1402

Published: Aug. 26, 2021

Ecological communities are assembled in a spatial–temporal continuum. However, we still have poor understanding of the relative importance different mechanisms structuring community composition (i.e. beta‐diversity) space and time. In this study, start by introducing conceptual model that capitalizes upon core‐occasional species concept to predict assembly process tropical mountains is driven deterministic turnover core via habitat sorting, but occasional through time stochastic events colonization local extinctions. We then propose general analytical framework allows assessing these predictions partitioning total variance species‐by‐site‐by‐time matrix among its purely spatial (variation independent time), temporal space) spatiotemporal variation across sites moments time) components. Through simulation models, provided theoretical support proposed suitable test derived from our model. used identify patterns quantify processes underlying organization ten distinct insect metacommunities along elevational gradient. As predicted, found that, taxa, beta‐diversity was mainly explained environmental alone: pattern indicates species. contrast, could not be distinguished expectation null models where simply represented random draws pools: within communities. Taken together, findings illustrate how quantitative can articulate better

Language: Английский

Beta diversity of drosophilid flies (Insecta: Diptera) between ecological reserves and urban parks is mediated by turnover DOI
Fábio André Gomes Silva Cavalcanti, José Pedro Cavalcante Viana, Matheus Cavalcante Viana

et al.

Urban Ecosystems, Journal Year: 2025, Volume and Issue: 28(3)

Published: April 29, 2025

Language: Английский

Citations

0
Mesophotic coral ecosystems of French Polynesia are hotspots of alpha and beta generic diversity for scleractinian assemblages DOI
Gonzalo Pérez‐Rosales,

Michel Pichon,

Héloïse Rouzé

et al.

Diversity and Distributions, Journal Year: 2022, Volume and Issue: 28(7), P. 1391 - 1403

Published: May 27, 2022

Abstract Aim Revealing how diversity varies across the depth gradient is key for understanding role of mesophotic coral ecosystems in functioning reefs. We quantitatively examined alpha and beta generic scleractinian assemblages vary a wide Location Sixteen sites eight islands three archipelagos French Polynesia. Methods studied patterns corals, as derived from analysis photo‐quadrats, seafloor shallow to lower depths (6–120 m) on geographic scale. Our sampling considered quantitative cover explore components horizontal space. Results show that Polynesia, host higher than reefs despite decreasing with depth. The variation genus richness mainly driven by mid‐domain effect peak at 40 m At same time, we found differences genera (spatial beta‐diversity) increased steadily along gradient. Main conclusions findings report first results Polynesia also present one few existing studies examine broad breadth demonstrate can unexpectedly high assemblages. showed increasing increases composition islands, whereas are similar between. While single island could conserve regional biodiversity, containing richest require site‐specific measures, suggesting considering these conservation necessary maintain diversity.

Language: Английский

Citations

16
Multiple β‐diversity patterns and the underlying mechanisms across amphibian communities along a subtropical elevational gradient DOI
Xiaoyi Wang,

Maojun Zhong,

Shengnan Yang

et al.

Diversity and Distributions, Journal Year: 2022, Volume and Issue: 28(12), P. 2489 - 2502

Published: Aug. 9, 2022

Abstract Aim Mountain systems offer excellent opportunities to understand β‐diversity patterns and the processes driving them. However, underlying mechanisms that lead dissimilarity in mountain amphibian communities across elevational gradients remain elusive. We aimed evaluate how respond environmental with elevation explore different ecological drive β‐diversity. Location A 2600‐m gradient along Mount Emei southwestern China. Methods investigated assembly of pairwise three dimensions (taxonomic, phylogenetic, functional) turnover (i.e., species replacement) nestedness‐resultant lose/gain) for amphibians. compared multifaceted components assessed extent which responded distances. also quantified standardized effect size its using null models examine dynamics niche‐based neutral processes. Results The component dominated taxonomic β‐diversity, whereas nestedness was relatively more important phylogenetic functional dissimilarity. Moreover, total were higher than their analogues. Our results indicated a significant distance‐decay amphibians on found effects directions predictors different, temperature seasonality, annual precipitation, distance acting as most factors. Comparing observed null‐model expectations, filtering, competitive exclusion may jointly Main conclusions study emphasizes importance partitioning taxonomic, community when determining drivers. Although it is difficult distinguish random from outcomes processes, this work highlights potential roles filtering controlling provides insights into biodiversity hotspot.

Language: Английский

Citations

16
Drivers of β-diversity and its component-dependence along the natural restoration in an extremely heterogeneous forest ecosystem DOI
Yuhang Wu, Zeyu Yang,

Shiren Chen

et al.

CATENA, Journal Year: 2024, Volume and Issue: 243, P. 108224 - 108224

Published: June 30, 2024

Language: Английский

Citations

3
Anthropogenic habitat alternation significantly decreases α- and β-diversity of benthopelagic metacommunity in a large floodplain lake DOI
Bin Li,

Wenzhuo Tan,

Li Wen

et al.

Hydrobiologia, Journal Year: 2019, Volume and Issue: 847(1), P. 293 - 307

Published: Oct. 15, 2019

Language: Английский

Citations

23
Different responses of dung beetle diversity and feeding guilds from natural and disturbed habitats across a subtropical elevational gradient DOI
Fredy Alvarado, Renato Portela Salomão,

Álvaro Hernandez-Rivera

et al.

Acta Oecologica, Journal Year: 2020, Volume and Issue: 104, P. 103533 - 103533

Published: Feb. 28, 2020

Language: Английский

Citations

22
Leaf traits and temperature shape the elevational patterns of phyllosphere microbiome DOI
Xing Wang, Zuoqiang Yuan, Arshad Ali

et al.

Journal of Biogeography, Journal Year: 2023, Volume and Issue: 50(12), P. 2135 - 2147

Published: Sept. 16, 2023

Abstract Aim The phyllosphere microbiome is central to plant health, distribution, and ecosystem function, yet, we lack a clear understanding of the drivers shaping their diversity in mountain ranges. Here, examined how endo‐ epiphytic microbiomes mountains simultaneously respond climate leaf functional traits. Location Temperate forests Changbai Mountain Natural Reserve, China. Methods We collected leaves dominant tree species along seven elevations from 800 1950. investigated changes richness Shannon fungal bacterial communities (using next‐generation sequencing ITS2 16S) an 1150 m elevational gradient. also direct indirect effects (mean annual temperature; MAT) 13 morphological chemical traits on phyllosphere. Results Phyllosphere declined monotonically with increasing elevation, contrasting hump‐shaped biodiversity patterns that are commonly reported. observed steeper decline than endophytic bacteria, whereas conversely fungi more dramatically elevation fungi. Host – those involved resource uptake surface temperature predominantly shaped microbiome, MAT mostly increased organisms. weak, but significant suggesting host important biotic mediating microbiome. Also, no covariation between bacteria was (neither for nor organisms), supporting neutral associations communities, irrespective elevation. Main Conclusions Both should be considered better understand microbiomes, generally plant–microbe associations. Our study offers trait‐based attempt disentangle abiotic filters

Language: Английский

Citations

8
Altitudinal gradient in species richness and composition of dung beetles (Coleoptera: Scarabaeidae) in an eastern Euro-Mediterranean locality: Functional, seasonal and habitat influences DOI Creative Commons
Yakup Şenyüz, Jorge M. Lobo, Kemal Dindar

et al.

European Journal of Entomology, Journal Year: 2019, Volume and Issue: 116, P. 309 - 319

Published: Oct. 11, 2019

The altitudinal gradient in diversity of dung beetles (Scarabaeidae) was studied a Mediterranean mountain chain located Central Anatolia to (i) determine if there are differences between the main taxonomic groups, (ii) describe seasonal variations these assemblages and (iii) assess whether closed habitats infl uence beetle differentially at different altitudes.Beetles were collected throughout year 14 localities 469 1810 m above sea level three types habitats.Dung 400 1200 did not vary greatly species richness, abundance biomass.However, they varied composition, with dominated by Scarabaeinae up 900 m, whereas mid-mountain (from 1600 m) numbers Aphodiinae higher.The decline increase altitude biomass both small large 1500 together constancy parameters case Aphodiinae, accounts for changes composition from lowland localities.Unlike other localities, open/closed structure habitat only slightly uences independently or season.The general pattern follows classical bimodal associated summer drought, but patterns more complex when responses groups analysed separately.We propose that interplay local climatic conditions (mainly temperature) evolutionary conserved preferences current gradients terms Scarabaeinae.

Language: Английский

Citations

20
New World dung beetle (Coleoptera: Scarabaeidae: Scarabaeinae) colonization of a recent Miocene insular territory: The case of Costa Rica DOI Creative Commons
Bert Kohlmann, Renato Portela Salomão, Ángel Solís

et al.

Ecology and Evolution, Journal Year: 2024, Volume and Issue: 14(6)

Published: May 30, 2024

Costa Rica emerged from the seas as a new geological territory during Miocene an insular archipelago. It later became part of continental area once it segment Central America. Two dung beetle genera that colonized this South and North America,

Language: Английский

Citations

2
High Temporal Beta Diversity in an Ant Metacommunity, With Increasing Temporal Functional Replacement Along the Elevational Gradient DOI Creative Commons
Cássio Alencar Nunes, Flávio Siqueira de Castro, Humberto Brant

et al.

Frontiers in Ecology and Evolution, Journal Year: 2020, Volume and Issue: 8

Published: Nov. 10, 2020

Ecological communities vary considerably in space and time understanding such changes has fundamental relevance for ecology conservation sciences. Mountains provide an excellent scenario studies addressing spatial temporal variation, as they conditions resources a small geographic region. Here, we aimed to understand the patterns of variation ant metacommunity composition across along elevational gradient tropical mountain, focusing both on taxonomic functional facets diversity. We used β-diversity metric broke it into nestedness turnover estimate short-term composition. tested following hypotheses: i. increase ii. is main component driving β-diversity. Rejecting our first hypothesis, found that did not with elevation. Yet, values were always high, indicating species traits are highly variable over time. In accordance second was Yet adding complexity contribution decreased increasing These results suggest at low elevations, may then cause trait because loss some traits, yet preserving most common functions (nested communities), while high elevations capabilities change (turnover traits). context global warming, where mountain insects expected their distributional range upwards, extremely important consider importance higher elevations.

Language: Английский

Citations

17