Single-shrub influence on earthworms and soil macroarthropods in the southern California chaparral

Peterson, Adam C.; Hendrix, Paul F.; Haydu, C.; Graham, Robert C.; Quideau, Sylvie A.

doi:10.1078/0031-4056-00103

Cited by 25 publications

(10 citation statements)

References 27 publications

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“…The positive effects of microhabitats on ground arthropods in this severely resource-limited desert steppe ecosystem could be ascribed to the multiple functions of shrubs, serving as primary producers, providers of resources and modulators of the physical environment (e.g., microclimate, soil nutrient and water availability) under their crown [ 10 , 39 ]. These ecological functions may combine to create a favorable microhabitat with relatively mild microclimates, secure oviposition sites, high resource availability and shelter, thereby resulting in a greater degree of arthropod activity and colonization in areas under shrubs versus those in open areas [ 3 , 6 , 39 ].…”

Section: Discussionmentioning

confidence: 99%

“…It has been suggested that shrubs established in desertified regions can act as resource sinks and provide species-specific shelter from temperature/drought extremes for soil/ground arthropods [ 3 , 6 ]. The distinct structure, physiology and phenology of each shrub species can cause differences in their effects as fertile islands, thus affecting the distribution and diversity of animal communities [ 5 , 7 , 8 ].…”

Section: Introductionmentioning

confidence: 99%

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Seasonal Distribution and Diversity of Ground Arthropods in Microhabitats Following a Shrub Plantation Age Sequence in Desertified Steppe

Liu

Zhu²,

Song³

et al. 2013

PLoS ONE

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In desertified regions, shrub-dominated patches are important microhabitats for ground arthropod assemblages. As shrub age increases, soil, vegetation and microbiological properties can change remarkably and spontaneously across seasons. However, relatively few studies have analyzed how ground arthropods respond to the microhabitats created by shrubs of different plantation ages across seasons. Using 6, 15, 24 and 36 year-old plantations of re-vegetated shrubs (Caragana koushinskii) in the desert steppe of northwestern China as a model system, we sampled ground arthropod communities using a pitfall trapping method in the microhabitats under shrubs and in the open areas between shrubs, during the spring, summer and autumn. The total ground arthropod assemblage was dominated by Carabidae, Melolonthidae, Curculionidae, Tenebrionidae and Formicidae that were affected by plantation age, seasonal changes, or the interaction between these factors, with the later two groups also influenced by microhabitat. Overall, a facilitative effect was observed, with more arthropods and a greater diversity found under shrubs as compared to open areas, but this was markedly affected by seasonal changes. There was a high degree of similarity in arthropod assemblages and diversity between microhabitats in summer and autumn. Shrub plantation age significantly influenced the distribution of the most abundant groups, and also the diversity indices of the ground arthropods. However, there was not an overall positive relationship between shrub age and arthropod abundance, richness or diversity index. The influence of plantation age on arthropod communities was also affected by seasonal changes. From spring through summer to autumn, community indices of ground arthropods tended to decline, and a high degree of similarity in these indices (with fluctuation) was observed among different ages of shrub plantation in autumn. Altogether the recovery of arthropod communities was markedly affected by seasonal variability, and they demonstrated distinctive communal fingerprints in different microhabitats for each plantation age stage.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Seasonal Distribution and Diversity of Ground Arthropods in Microhabitats Following a Shrub Plantation Age Sequence in Desertified Steppe

Liu

Zhu²,

Song³

et al. 2013

PLoS ONE

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“…These megascolecids, including Diplocardia mississippiensis, influence nutrient cycling in fire-controlled pinelands [65,66]. Populations of European lumbricids along with native megascolecids are found in fire-affected Southern California chapparal soils [67,68], where they also are important to nutrient availability [69]. In tropical regions, populations of the peregrine earthworm species, P. corethrurus, are capable of translocating charcoal residues from slash-and-burn land clearings deeper into the soil profile [70].…”

Section: Historical Impacts and Other Field Studiesmentioning

confidence: 99%

Impact of Biochar on Earthworm Populations: A Review

Weyers

Spokas

2011

Applied and Environmental Soil Science

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Despite the overwhelming importance of earthworm activity in the soil system, there are a limited number of studies that have examined the impact resulting from biochar addition to soil. Biochar is part of the black carbon continuum of chemothermal converted biomass. This review summarizes existing data pertaining to earthworms where biochar and other black carbon substances, including slash-and-burn charcoals and wood ash, have been applied. After analyzing existing studies on black carbon, we identified that these additions have a range from short-term negative impacts to long-term null effects on earthworm population density and total biomass. Documented cases of mortality were found with certain biochar-soil combinations; the cause is not fully understood, but hypothesized to be related to pH, whether the black carbon is premoistened, affects feeding behaviors, or other unknown factors. With wood ashes, negative impacts were overcome with addition of other carbon substrates. Given that field data is limited, soils amended with biochar did not appear to cause significant long-term impacts. However, this may indicate that the magnitude of short-term negative impacts on earthworm populations can be reduced with time.

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“…Earthworm distribution in soil layers are influenced by both abiotic and biotic factors (Lavelle and Martin, 1992). High species population in the uppermost layer may be due to presence of favourable temperature, moisture content and availability of leaf litter, which are necessary for the survival of earthworms (Baker, 1998;Whalen et al, 1998;Aroujo and Hernandez, 1999;Tian ., 2000;Peterson., 2001;Kale and Karmegam, 2010). The Presence of less number of earthworms in deeper layer may be due to compact texture of the soil resulting from various factors such as reduced volume of pore in soil, less oxygen and temporary water logging in soils (Bostrom, 1986) which do not favour the activities of earthworm efficiently.…”

Section: Resultsmentioning

confidence: 99%

Biodiversity of ecologically important earthworms in subtropical forest ecosystems of East and West Imphal districts of Manipur

Thounaojam¹,

Thingbaijam²

2020

JEB

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Saddle shape Clitellum Earthworm diversity in subtropical forest ecosystem was studied. Eight species belonging to six genera and four families were recorded. Among the four families megascolecidae was dominant at the study sites. Figure : Metaphire birmanica : A) Mature earthworm, B) Prostomium Ventral View, C) Prostomium Dorsal View and D) Clitellum (XIV-XVI) Diversity was high in natural reserve mixed forest with high canopy cover and epigeic, anecic and endogeic earthworms were found among which endogeic species (Pontoscolex corethrurus, Drawida sp. and Kanchuria sumerianus) are more versatile in spatial and temporal distribution in the study sites.

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Single-shrub influence on earthworms and soil macroarthropods in the southern California chaparral

Cited by 25 publications

References 27 publications

Seasonal Distribution and Diversity of Ground Arthropods in Microhabitats Following a Shrub Plantation Age Sequence in Desertified Steppe

Seasonal Distribution and Diversity of Ground Arthropods in Microhabitats Following a Shrub Plantation Age Sequence in Desertified Steppe

Impact of Biochar on Earthworm Populations: A Review

Biodiversity of ecologically important earthworms in subtropical forest ecosystems of East and West Imphal districts of Manipur

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