Implications of interacting microscale habitat heterogeneity and disturbance events on <i>Folsomia candida</i> (Collembola) population dynamics: A modeling approach

Meli, Mattia; Palmqvist, Annemette; Forbes, Valery E.

doi:10.1002/etc.2552

Cited by 8 publications

(5 citation statements)

References 35 publications

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“…; Salmon et al . ), in estimating sublethal effects of chemical agents in ecotoxicology (van Gestel ), in allometric studies (Mulder ) and in population growth modelling (Meli, Palmqvist & Forbes ). Techniques already exist to automatize these time‐consuming measurements in the laboratory (Mallard, Le Bourlot & Tully ; Bánszegi et al .…”

Section: Introductionmentioning

confidence: 99%

“…Body size of microarthropods and other invertebrates in soils is commonly measured in trait analyses for community assessment and ecological indicator studies (Bokhorst et al 2012;Salmon et al 2014), in estimating sublethal effects of chemical agents in ecotoxicology ( van Gestel 2012), in allometric studies (Mulder 2006) and in population growth modelling (Meli, Palmqvist & Forbes 2014). Techniques already exist to automatize these time-consuming measurements in the laboratory (Mallard, Le Bourlot & Tully 2013;B anszegi et al 2014).…”

Section: Introductionmentioning

confidence: 99%

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EDAPHOLOG monitoring system: automatic, real‐time detection of soil microarthropods

et al. 2016

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Summary Soil microarthropods as organic matter decomposers play an important role in soil functioning thus providing ecosystem services. However, ecosystem scale investigations on their abundance and dynamics are scarce because their high spatio‐temporal heterogeneity requires huge sample size. Processing and identifying large number of individuals are extremely labour‐intensive. We prototyped a device called EDAPHOLOG monitoring system that consists of (1) a probe that catches and detects microarthropods and estimates their body size; (2) a data logger transmitting data to a central data base; and (3) a Java application for retrieving data. We tested the device in three ways. First, we tested the precision and accuracy of detection and body size estimation of the device in the laboratory using microarthropods of five morphotypes: euedaphic Collembola, haired Collembola, scaled Collembola, Acari and Oribatida. Secondly, we compared the number of individuals collected by EDAPHOLOG traps, pitfall traps and soil extraction method in an alfalfa field. Thirdly, we deployed a total of 100 EDAPHOLOG probes in nine different habitats for over 3 months to demonstrate the applicability of the monitoring system. In the laboratory, EDAPHOLOG detected 95·6% of individuals; even the smallest morphotype (Oribatida, body size (mean ± SE): 0·58 ± 0·04 mm) was detected in 87·5% of cases. For body length estimation, we established a quadratic relationship between the estimated and measured body lengths; however, the R2 of the quadratic model was only 0·32. By comparing the three different sampling methods (EDAPHOLOG, pitfall traps and soil extraction), we concluded that EDAPHOLOG traps better select for soil microarthropods compared to classical pitfall traps, since the latter ones caught also many other arthropod species. Furthermore, the EDAPHOLOG traps caught more epigeic microarthropods and almost the same number of soil‐dwelling euedaphic microarthropods as the numbers collected by soil extraction. During the 3‐month‐long field test, the total numbers of detected and captured individuals agreed very well, although the device tended to overestimate the number probably due to counting also some soil particles falling into the probe. This trend was the same regardless of the total number caught. Surface‐dwelling epigeic and litter‐dwelling hemiedaphic microarthropods dominated the samples although soil‐dwelling euedaphic microarthropods were also caught. EDAPHOLOG is a novel device that consumes little power, rugged enough to operate in the field for extended periods of time, and can be remotely controlled. It detects surface‐ and soil‐dwelling microarthropods real‐time, and with high accuracy; however, it is less accurate to estimate body size. The system is especially suitable in field research focusing on temporal activity of microarthropods. Because it is non‐invasive, studies requiring long‐term monitoring, such as soil remediation or ecosystem restoration projects, will also find EDAPHOLOG useful.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

EDAPHOLOG monitoring system: automatic, real‐time detection of soil microarthropods

et al. 2016

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“…The amount of the favourable habitats within a landscape has been shown to be important for maintaining the persistence of populations (Dytham 1995, Meli et al 2014. Surprisingly, we found that increasing the number of patches affected by drought at different speeds only negatively affect the maximum rate of population decline, rather than the timing of extinctions, which may suggest a tipping point for environmental conditions as a result of increased drought habitats destabilising populations.…”

Section: Discussionmentioning

confidence: 60%

Habitat connectivity buffers extinction under extreme droughts in experimental metapopulations

Memmott

Clements

2023

Preprint

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Connectivity maintains the spatial dynamics of metapopulations by promoting dispersal between habitat patches, potentially buffering populations and communities against continued global change. However, this function is threatened by habitats becoming increasingly fragmented, and habitat matrices becoming increasingly inhospitable, potentially reducing the resilience and persistence of populations. Yet, we lack a clear understanding of how reduced connectivity interacts with rates of environmental change to destabilise populations. Using laboratory microcosms containing metapopulations of the Collembola Folsomia candida, we investigate the impact of habitat connectivity on metapopulation persistence under a range of simulated droughts, a key stressor for this species. We manipulated both drought severity and the number of patches affected by drought across landscapes connected by either good or poor-quality corridors. We measured the time of population extinction, the maximum rate of population decline, and the variability of abundance among patches as criteria to evaluate the persistence ability of metapopulations. We show that whilst drought severity and number of drought-affected patches negatively influenced population persistence, these results were mitigated by increased habitat connectivity, which increased population persistence time and decreased both how fast populations declined and the variability in abundance among patches. Our results suggest that enhancing spatial connectivity can increase the persistence of metapopulations, increasing the time available for conservation actions to take effect, and/or for species to adapt or move in the face of continued stress. Given that fragmentation increases the isolation of habitats, improving habitat connectivity by using good quality corridors may provide a useful strategy to enhance the resistance of spatially structured populations.

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“…was low (less than 5 collembola per sample), and varied little throughout the cultivation (Figure 4B). causing their death due to the mechanical impact of this practice as well as it affects the reduction of food resources for these arthropods (Meli et al, 2014;Coulibaly et al al., 2017;Müller et al, 2022). Straw on the soil favorably affected the abundance of Collembola on the soil of bean crops, possibly because it serves as a shelter and food and provides an adequate microhabitat for these arthropods (Andrén & Schnürer, 1985;Dittmer & Schrader, 2000;Mint, 2012).…”

Section: Resultsmentioning

confidence: 99%

Impact of no-tillage and straw on detritivorous arthropods on the surface on the soil in bean crops

Pereira

Moreira²,

Silva³

et al. 2022

RSD

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Detritivorous arthropods are essential because they participate in recycling organic matter, decomposing pesticides, improving soil properties, conserving water, and reducing problems with plant diseases. Practices such as no-till and straw on soils can affect soil properties and populations of detritivorous arthropods. Brazil is the largest producer and consumer of common beans (Phaseolus vulgaris). Thus, this work aimed to determine the impact of no-till and straw planting on detritivorous arthropods on the "surface over ground" in common bean crops. In this way, common beans were cultivated in tillage and no-till with and without straw on the soil. During cultivation, the density of detritivorous arthropods on the soil was monitored using a pitfall trap. Sixteen morphospecies of detritivorous arthropods were observed on the surface of the ground. No-tillage and straw did not affect the number of detritivorous arthropod species. The most abundant morphospecies was the Collembola Entomobryidae and Hypogastrura sp. and the Coleoptera Scarabaeidae and Colopterus spp. No-till and straw positively affected the abundance of detritivorous arthropods. Therefore, no-tillage and straw in bean crops provide conditions for increasing detritivorous arthropod populations, improving soil properties.

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Implications of interacting microscale habitat heterogeneity and disturbance events on Folsomia candida (Collembola) population dynamics: A modeling approach

Cited by 8 publications

References 35 publications

EDAPHOLOG monitoring system: automatic, real‐time detection of soil microarthropods

EDAPHOLOG monitoring system: automatic, real‐time detection of soil microarthropods

Habitat connectivity buffers extinction under extreme droughts in experimental metapopulations

Impact of no-tillage and straw on detritivorous arthropods on the surface on the soil in bean crops

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