Habitat complexity drives the turnover and nestedness patterns in a periphytic algae community

Osório, Nicolli Cristina; Cunha, Eduardo Ribeiro; Tramonte, Rafael Prandini; Mormul, Roger Paulo; Rodrigues, Liliana

doi:10.1007/s10201-019-00578-y

Cited by 17 publications

(7 citation statements)

References 47 publications

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“…In a study of birds and snails, habitat homogeneity was responsible for the nestedness of the animal communities 40,41 . However, it must be noted that habitat simplification can reduce local species richness, and the whole community would be similar, leading to homogenization 42,43 . Thus, it is vital to see both, the smaller more detailed picture as well as the bigger picture in order to consider the fragmentation between the sites and successfully implement conservation plans, both locally and regionally.…”

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confidence: 99%

Alpha and beta diversity patterns of macro-moths reveal a breakpoint along a latitudinal gradient in Mongolia

Enkhtur

Brehm

Boldgiv

et al. 2021

Sci Rep

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Little is known about the diversity and distribution patterns of moths along latitudinal gradients. We studied macro-moths in Mongolia along an 860 km latitudinal climatic gradient to gain knowledge on community composition, alpha, beta, and gamma diversity as well as underlying factors, which can be used as baseline information for further studies related to climate change. We identified 236 species of moths of ten families. Our study shows that the diversity of moths increased with the latitude, i.e., low species richness in the south and higher richness in the north. Moth community composition changed along the gradient, and we revealed a breakpoint of beta diversity that divided grassland and desert communities. In the desert, beta diversity was driven by species loss (i.e., nestedness), and few tolerant species existed with high abundance. In contrast, in the grassland, beta diversity was driven by species replacement with more unique species, (i.e., species which occurred only in one site). We found the lowest species diversity in the transitional zones dominated by few generalist species such as Agrotis ripae and Anarta trifolii. Low precipitation and an increasing number of grazing goats are drivers of species loss. We suggest different conservation strategies regarding the contrasting patterns of beta diversity in desert and grassland.

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confidence: 99%

Alpha and beta diversity patterns of macro-moths reveal a breakpoint along a latitudinal gradient in Mongolia

Enkhtur

Brehm

Boldgiv

et al. 2021

Sci Rep

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“…Studies such as one by Osório et al (2019) showed that the colonization of the periphytic community differed according to the ability of each species to colonize substrates of small or large complexity. Murdock and Dodds (2007) obtained higher values of chlorophyll and higher diversity of algae in more rugged substrates, suggesting that the larger surface area available with rough substrates contributes to the growth and diversity of species in the community, as does the complexity of the substrate.…”

Section: Resultsmentioning

confidence: 99%

Contributions of the periphyton to the growth of Nile tilapia (Oreochromis niloticus) fingerlings on different fixation substrates: an ecological approach

Rosa,

Russo,

Inoue

et al. 2022

Rev. Bras. Ciênc. Ambient.

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Knowing about the ecological aspects involved in the commercial breeding of aquatic organisms becomes an important tool to make aquaculture more productive and less impactful. Thus, periphyton taxon composition and biomass on different substrates and the influence of these on water quality and growth parameters of Nile tilapia fingerlings were examined. An experiment with three treatments (substrates for growth of periphyton: geomembrane, polyethylene terephthalate (PET), and bamboo) and a control (without substrate), each with five replicates, was conducted in a greenhouse with controlled aeration and temperature. Each mesocosm was populated with ten tilapia fingerlings with an average weight of 2.3 g for 30 days. Water quality parameters were not significantly different among treatments but remained within that established by the environmental legislation. In all treatments, 36 periphyton taxa were observed. The bamboo substrate was the most diverse, which could be attributed to the fact it was a natural substrate. Regarding fish growth, there was a significant difference among the treatments, with the PET treatment having a higher condition factor (kn). The bamboo substrate was good for colonization concerning alga diversity; however, fish in the PET treatment and control exhibited higher performance and algae consumption values, respectively.

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“…We separated methodological approaches into eight categories, according to the way authors manipulated environmental elements to create differences of heterogeneity between control and treatment groups or gradients of spatial EH. Historically, the most used approach comprise the manipulation of a single environmental element, such as the qualitative variation approach (used in 27% of the studies), mainly using different types of aquatic vegetation or substrates (Boyero et al 2009, Guadagnin et al 2009), and the structure approach (20% of the studies), mainly manipulating the structure of artificial substrates and aquatic plants (Benson and Magnuson 1992, Osório et al 2019). Third, the mixed approach has been increasingly used in ecological studies (16% of the studies), in which the authors bring a more holistic view, including multiple elements to evaluate spatial EH (e.g.…”

Section: Discussionmentioning

confidence: 99%

A global synthesis and meta‐analysis of the environmental heterogeneity effects on the freshwater biodiversity

Agra,

Cornelissen,

Viana‐Junior

et al. 2023

Oikos

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The spatial environmental heterogeneity (EH) has been invoked as an important factor to explain biodiversity. It is expected that higher spatial EH provides a wider range of resources and conditions for species with different requirements, leading to an increase of biodiversity. However, differences among geographical locations, ecosystem types, taxonomic groups, their occurrence zone, and methodological approaches may reveal idiosyncrasy between studies. Thus, we aimed to synthesize the global knowledge about the relationship between spatial EH and freshwater biodiversity (i.e. taxonomic and functional diversity, and their respective α and β components). Through a systematic review, we integrated results from 98 studies, published in 33 different countries, about the role of spatial EH – biodiversity relationship in freshwater ecosystems. Through meta‐analysis, we demonstrated that spatial EH has a positive effect over taxonomic and functional alpha diversity. Besides, we confirmed that the positive effect of spatial EH over taxonomic alpha diversity is consistent across geographical locations, ecosystem types, taxonomic groups, occurrence zones and between experiments with different methodological designs. Nonetheless, there was not enough evidence to robustly estimate the overall effect of spatial EH over taxonomic and functional beta diversity. Further, we discuss the mechanisms addressed to explain spatial EH‐biodiversity relationship, and implications for the management, conservation and restoration plans for freshwater ecosystems.

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Habitat complexity drives the turnover and nestedness patterns in a periphytic algae community

Cited by 17 publications

References 47 publications

Alpha and beta diversity patterns of macro-moths reveal a breakpoint along a latitudinal gradient in Mongolia

Alpha and beta diversity patterns of macro-moths reveal a breakpoint along a latitudinal gradient in Mongolia

Contributions of the periphyton to the growth of Nile tilapia (Oreochromis niloticus) fingerlings on different fixation substrates: an ecological approach

A global synthesis and meta‐analysis of the environmental heterogeneity effects on the freshwater biodiversity

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