Efficiency of two widespread non-destructive extraction methods under dry soil conditions for different ecological earthworm groups

Eisenhauer, Nico; Straube, Daniela; Scheu, Stefan

doi:10.1016/j.ejsobi.2007.10.002

Cited by 65 publications

(41 citation statements)

References 15 publications

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“…Endogeic species were extracted in low numbers for both methods compared to hand-sorting, suggesting decreased activity or inactivity during dry seasons. These findings led Eisenhauer et al [101] to conclude that the octet method was inappropriate in estimating earthworm community structure, however these conclusions may have limited applicability to dry or seasonally dry soils.…”

Section: Electroshockmentioning

confidence: 99%

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Methodological Considerations in the Study of Earthworms in Forest Ecosystems

Rhea-Fournier¹,

González²

2017

Forest Ecology and Conservation

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Decades of studies have shown that soil macrofauna, especially earthworms, play dominant engineering roles in soils, affecting physical, chemical, and biological components of ecosystems. Quantifying these effects would allow crucial improvement in biogeochemical budgets and modeling, predicting response of land use and disturbance, and could be applied to bioremediation efforts. Effective methods of manipulating earthworm communities in the field are needed to accompany laboratory microcosm studies to calculate their net function in natural systems and to isolate specific mechanisms. This chapter reviews laboratory and field methods for enumerating and manipulating earthworm populations, as well as approaches toward quantifying their influences on soil processes and biogeochemical cycling.

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Section: Electroshockmentioning

confidence: 99%

“…Eisenhauer et al [101] tested the same octet design as Schmidt [100] against mustard extraction in dry conditions in a seminatural grassland in Germany. Electrical current was applied for 35 min per treatment in step-wise incremental increase of voltage from 250 to 600 V with no report of electric current or distance between probes.…”

Section: Electroshockmentioning

confidence: 99%

Methodological Considerations in the Study of Earthworms in Forest Ecosystems

Rhea-Fournier¹,

González²

2017

Forest Ecology and Conservation

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“…This method is environmentally friendly and provides an accurate index of species composition and abundance (Gunn 1992;Lawrence and Bowers 2002;Eisenhauer et al 2008), especially for the deep-burrowing L. terrestris (Chan and Munro 2001). However, the method requires substantial time and effort because large quantities of water must often be transported long distances into remote areas.…”

Section: Introductionmentioning

confidence: 99%

Earthworm Invasions in Northern Hardwood Forests: a Rapid Assessment Method

Loss

Hueffmeier

Hale

et al. 2013

Natural Areas Journal

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“…This method is attractive as little or no damage is done to the area sampled and only fallen leaves and overgrown vegetation need be removed prior to sampling to assist earthworm detection. To date only limited work has been undertaken with this method, specifically in agricultural soils [21] possibly because equipment is expensive as an extraction unit to sample 0.2 m 2 at a time will cost (at 2009 prices) in excess of $3000. Having determined which earthworms are present in a given habitat, if desired, it is then possible to experimentally manipulate the earthworms themselves or resources, such as food, in the habitat.…”

Section: Collection Techniques (First Catch Your Earthworm)mentioning

confidence: 99%

Basic Research Tools for Earthworm Ecology

Butt

Grigoropoulou

2010

Applied and Environmental Soil Science

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Earthworms are responsible for soil development, recycling organic matter and form a vital component within many food webs. For these and other reasons earthworms are worthy of investigation. Many technologically-enhanced approaches have been used within earthworm-focused research. These have their place, may be a development of existing practices or bring techniques from other fields. Nevertheless, let us not overlook the fact that much can still be learned through utilisation of more basic approaches which have been used for some time. New does not always equate to better. Information on community composition within an area and specific population densities can be learned using simple collection techniques, and burrowing behaviour can be determined from pits, resin-insertion or simple mesocosms. Life history studies can be achieved through maintenance of relatively simple cultures. Behavioural observations can be undertaken by direct observation or with low cost webcam usage. Applied aspects of earthworm research can also be achieved through use of simple techniques to enhance population development and even population dynamics can be directly addressed with use of relatively inexpensive, effective marking techniques. This paper seeks to demonstrate that good quality research in this sphere can result from appropriate application of relatively simple research tools.

show abstract

Efficiency of two widespread non-destructive extraction methods under dry soil conditions for different ecological earthworm groups

Cited by 65 publications

References 15 publications

Methodological Considerations in the Study of Earthworms in Forest Ecosystems

Methodological Considerations in the Study of Earthworms in Forest Ecosystems

Earthworm Invasions in Northern Hardwood Forests: a Rapid Assessment Method

Basic Research Tools for Earthworm Ecology

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