Lumbricus terrestris - Revision history

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2023-05-10T18:06:47Z

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← Older revision		Revision as of 14:06, 10 May 2023
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	=== Effect as an Invasive Species ===		=== Effect as an Invasive Species ===
	Despite being introduced over 100 years ago, ''L. terrestris'' still is not a native earthworm to the northern portion of the United States. The well-supported theory is that native earthworm species are effectively non-existent in the northern forests of North America because the last glacial period prevented earthworms from living in the area through its duration; in addition, due to the small size of earthworms, it is difficult for them to swiftly colonize on their own<ref name="Bohlen2">Patrick J. Bohlen, Peter M. Groffman, Timothy J. Fahey, Melany C. Fisk, Esteban Suarez, Derek M. Pelletier, and Robert T. Fahey, "Ecosystem Consequences of Exotic Earthworm Invasion of North Temperate Forests", ''Ecosystems (2004) 7: 1–12'', 12 January 2004. Retrieved 5/2/2022 </ref>. The effect of an anecic earthworm in particular, which eats litter layer, has serious impacts on Northern temperate deciduous forests. The annual loss of leaves and [[decomposition]] of these leaves on the forest floor is what leads to [[Nutrient Cycling\|nutrient cycling]] on the forest floor and creates fertile soil in these forests. The addition of ''L. terrestris'' in great numbers can reduce this leaf litter and so disrupt [[Nutrient Cycling\|nutrient cycling]] and encourage nutrient loss in these areas which have no history of earthworm activity<ref name="Bohlen2"></ref>. This disruption of nutrient cycling and mixing of soil horizons may also affect processes which occur within the [[rhizosphere]], and other microfauna which interacts with [[plant roots]] belowground.		Despite being introduced over 100 years ago, ''L. terrestris'' still is not a native earthworm to the northern portion of the United States. The well-supported theory is that native earthworm species are effectively non-existent in the northern forests of North America because the last glacial period prevented earthworms from living in the area through its duration; in addition, due to the small size of earthworms, it is difficult for them to swiftly colonize on their own<ref name="Bohlen2">Patrick J. Bohlen, Peter M. Groffman, Timothy J. Fahey, Melany C. Fisk, Esteban Suarez, Derek M. Pelletier, and Robert T. Fahey, "Ecosystem Consequences of Exotic Earthworm Invasion of North Temperate Forests", ''Ecosystems (2004) 7: 1–12'', 12 January 2004. Retrieved 5/2/2022 </ref>. The effect of an anecic earthworm in particular, which eats litter layer, has serious impacts on Northern temperate deciduous forests. The annual loss of leaves and [[decomposition]] of these leaves on the forest floor is what leads to [[Nutrient Cycling\|nutrient cycling]] on the forest floor and creates fertile soil in these forests. The addition of ''L. terrestris'' in great numbers can reduce this leaf litter and so disrupt [[Nutrient Cycling\|nutrient cycling]] and encourage nutrient loss in these areas which have no history of earthworm activity<ref name="Bohlen2"></ref>. This disruption of [[Nutrient Cycling\|nutrient cycling]] and mixing of [[Soil Horizons\|soil horizons]] may also affect processes which occur within the [[rhizosphere]], and other microfauna which interacts with [[plant roots]] belowground.


	== References ==		== References ==
	<references />		<references />

Njhenshu: The LinkTitles extension automatically added links to existing pages (https://github.com/bovender/LinkTitles).

2023-03-31T18:28:53Z

← Older revision		Revision as of 14:28, 31 March 2023
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	''L. terrestris'' is an anecic earthworm, one which creates deep burrows far down into the soil<ref name="Coleman"></ref>. Earthworms in general are engineers of the surrounding environment in soil due to their close relationship with soil, and anecic earthworms are very impactful of the soil environment because of their characteristic deep burrows, which tend to be permanent<ref name="Coleman"></ref>. The burrows not only bring leaf litter down further into the soil profile, but also the earthworms deposit middens above ground, creating small areas where there are increased nutrients and soil from further below in the soil profile.<ref name="Coleman"></ref>		''L. terrestris'' is an anecic earthworm, one which creates deep burrows far down into the soil<ref name="Coleman"></ref>. Earthworms in general are engineers of the surrounding environment in soil due to their close relationship with soil, and anecic earthworms are very impactful of the soil environment because of their characteristic deep burrows, which tend to be permanent<ref name="Coleman"></ref>. The burrows not only bring leaf litter down further into the soil profile, but also the earthworms deposit middens above ground, creating small areas where there are increased nutrients and soil from further below in the soil profile.<ref name="Coleman"></ref>
	<br></br>		<br></br>
	The soil mixing which anecic earthworms perform means that the [[Soil Horizons\|soil horizons]] in which they live and interact with are known as "mull" soil horizons, which is when [[Organic Matter\|organic matter]] is extremely well mixed into the upper mineral soil. This has an extreme end to the spectrum, where the horizon is extremely granular, and characterized by organic mineral complexes which consist of earthworm casts; this is known as "vermimull"<ref name="Coleman"></ref> This is extremely common in areas where ''L. terrestris'' is abundant and an exotic species, such as Western New York. If you see small granular piles on the ground outside, this is the result of many earthworms in the area.		The soil mixing which anecic earthworms perform means that the [[Soil Horizons\|soil horizons]] in which they live and interact with are known as "mull" [[Soil Horizons\|soil horizons]], which is when [[Organic Matter\|organic matter]] is extremely well mixed into the upper mineral soil. This has an extreme end to the spectrum, where the horizon is extremely granular, and characterized by organic mineral complexes which consist of earthworm casts; this is known as "vermimull"<ref name="Coleman"></ref> This is extremely common in areas where ''L. terrestris'' is abundant and an exotic species, such as Western New York. If you see small granular piles on the ground outside, this is the result of many earthworms in the area.

	=== Diet ===		=== Diet ===
Line 51:		Line 51:

	=== Effect as an Invasive Species ===		=== Effect as an Invasive Species ===
	Despite being introduced over 100 years ago, ''L. terrestris'' still is not a native earthworm to the northern portion of the United States. The well-supported theory is that native earthworm species are effectively non-existent in the northern forests of North America because the last glacial period prevented earthworms from living in the area through its duration; in addition, due to the small size of earthworms, it is difficult for them to swiftly colonize on their own<ref name="Bohlen2">Patrick J. Bohlen, Peter M. Groffman, Timothy J. Fahey, Melany C. Fisk, Esteban Suarez, Derek M. Pelletier, and Robert T. Fahey, "Ecosystem Consequences of Exotic Earthworm Invasion of North Temperate Forests", ''Ecosystems (2004) 7: 1–12'', 12 January 2004. Retrieved 5/2/2022 </ref>. The effect of an anecic earthworm in particular, which eats litter layer, has serious impacts on Northern temperate deciduous forests. The annual loss of leaves and [[decomposition]] of these leaves on the forest floor is what leads to [[Nutrient Cycling\|nutrient cycling]] on the forest floor and creates fertile soil in these forests. The addition of ''L. terrestris'' in great numbers can reduce this leaf litter and so disrupt nutrient cycling and encourage nutrient loss in these areas which have no history of earthworm activity<ref name="Bohlen2"></ref>. This disruption of nutrient cycling and mixing of soil horizons may also affect processes which occur within the [[rhizosphere]], and other microfauna which interacts with [[plant roots]] belowground.		Despite being introduced over 100 years ago, ''L. terrestris'' still is not a native earthworm to the northern portion of the United States. The well-supported theory is that native earthworm species are effectively non-existent in the northern forests of North America because the last glacial period prevented earthworms from living in the area through its duration; in addition, due to the small size of earthworms, it is difficult for them to swiftly colonize on their own<ref name="Bohlen2">Patrick J. Bohlen, Peter M. Groffman, Timothy J. Fahey, Melany C. Fisk, Esteban Suarez, Derek M. Pelletier, and Robert T. Fahey, "Ecosystem Consequences of Exotic Earthworm Invasion of North Temperate Forests", ''Ecosystems (2004) 7: 1–12'', 12 January 2004. Retrieved 5/2/2022 </ref>. The effect of an anecic earthworm in particular, which eats litter layer, has serious impacts on Northern temperate deciduous forests. The annual loss of leaves and [[decomposition]] of these leaves on the forest floor is what leads to [[Nutrient Cycling\|nutrient cycling]] on the forest floor and creates fertile soil in these forests. The addition of ''L. terrestris'' in great numbers can reduce this leaf litter and so disrupt [[Nutrient Cycling\|nutrient cycling]] and encourage nutrient loss in these areas which have no history of earthworm activity<ref name="Bohlen2"></ref>. This disruption of nutrient cycling and mixing of soil horizons may also affect processes which occur within the [[rhizosphere]], and other microfauna which interacts with [[plant roots]] belowground.


	== References ==		== References ==
	<references />		<references />

Njhenshu: The LinkTitles extension automatically added links to existing pages (https://github.com/bovender/LinkTitles).

2022-05-06T18:03:02Z

← Older revision		Revision as of 14:03, 6 May 2022
Line 41:		Line 41:
	''L. terrestris'' is an anecic earthworm, one which creates deep burrows far down into the soil<ref name="Coleman"></ref>. Earthworms in general are engineers of the surrounding environment in soil due to their close relationship with soil, and anecic earthworms are very impactful of the soil environment because of their characteristic deep burrows, which tend to be permanent<ref name="Coleman"></ref>. The burrows not only bring leaf litter down further into the soil profile, but also the earthworms deposit middens above ground, creating small areas where there are increased nutrients and soil from further below in the soil profile.<ref name="Coleman"></ref>		''L. terrestris'' is an anecic earthworm, one which creates deep burrows far down into the soil<ref name="Coleman"></ref>. Earthworms in general are engineers of the surrounding environment in soil due to their close relationship with soil, and anecic earthworms are very impactful of the soil environment because of their characteristic deep burrows, which tend to be permanent<ref name="Coleman"></ref>. The burrows not only bring leaf litter down further into the soil profile, but also the earthworms deposit middens above ground, creating small areas where there are increased nutrients and soil from further below in the soil profile.<ref name="Coleman"></ref>
	<br></br>		<br></br>
	The soil mixing which anecic earthworms perform means that the soil horizons in which they live and interact with are known as "mull" soil horizons, which is when organic matter is extremely well mixed into the upper mineral soil. This has an extreme end to the spectrum, where the horizon is extremely granular, and characterized by organic mineral complexes which consist of earthworm casts; this is known as "vermimull"<ref name="Coleman"></ref> This is extremely common in areas where ''L. terrestris'' is abundant and an exotic species, such as Western New York. If you see small granular piles on the ground outside, this is the result of many earthworms in the area.		The soil mixing which anecic earthworms perform means that the [[Soil Horizons\|soil horizons]] in which they live and interact with are known as "mull" soil horizons, which is when [[Organic Matter\|organic matter]] is extremely well mixed into the upper mineral soil. This has an extreme end to the spectrum, where the horizon is extremely granular, and characterized by organic mineral complexes which consist of earthworm casts; this is known as "vermimull"<ref name="Coleman"></ref> This is extremely common in areas where ''L. terrestris'' is abundant and an exotic species, such as Western New York. If you see small granular piles on the ground outside, this is the result of many earthworms in the area.

	=== Diet ===		=== Diet ===
Line 51:		Line 51:

	=== Effect as an Invasive Species ===		=== Effect as an Invasive Species ===
	Despite being introduced over 100 years ago, ''L. terrestris'' still is not a native earthworm to the northern portion of the United States. The well-supported theory is that native earthworm species are effectively non-existent in the northern forests of North America because the last glacial period prevented earthworms from living in the area through its duration; in addition, due to the small size of earthworms, it is difficult for them to swiftly colonize on their own<ref name="Bohlen2">Patrick J. Bohlen, Peter M. Groffman, Timothy J. Fahey, Melany C. Fisk, Esteban Suarez, Derek M. Pelletier, and Robert T. Fahey, "Ecosystem Consequences of Exotic Earthworm Invasion of North Temperate Forests", ''Ecosystems (2004) 7: 1–12'', 12 January 2004. Retrieved 5/2/2022 </ref>. The effect of an anecic earthworm in particular, which eats litter layer, has serious impacts on Northern temperate deciduous forests. The annual loss of leaves and [[decomposition]] of these leaves on the forest floor is what leads to nutrient cycling on the forest floor and creates fertile soil in these forests. The addition of ''L. terrestris'' in great numbers can reduce this leaf litter and so disrupt nutrient cycling and encourage nutrient loss in these areas which have no history of earthworm activity<ref name="Bohlen2"></ref>. This disruption of nutrient cycling and mixing of soil horizons may also affect processes which occur within the [[rhizosphere]], and other microfauna which interacts with [[plant roots]] belowground.		Despite being introduced over 100 years ago, ''L. terrestris'' still is not a native earthworm to the northern portion of the United States. The well-supported theory is that native earthworm species are effectively non-existent in the northern forests of North America because the last glacial period prevented earthworms from living in the area through its duration; in addition, due to the small size of earthworms, it is difficult for them to swiftly colonize on their own<ref name="Bohlen2">Patrick J. Bohlen, Peter M. Groffman, Timothy J. Fahey, Melany C. Fisk, Esteban Suarez, Derek M. Pelletier, and Robert T. Fahey, "Ecosystem Consequences of Exotic Earthworm Invasion of North Temperate Forests", ''Ecosystems (2004) 7: 1–12'', 12 January 2004. Retrieved 5/2/2022 </ref>. The effect of an anecic earthworm in particular, which eats litter layer, has serious impacts on Northern temperate deciduous forests. The annual loss of leaves and [[decomposition]] of these leaves on the forest floor is what leads to [[Nutrient Cycling\|nutrient cycling]] on the forest floor and creates fertile soil in these forests. The addition of ''L. terrestris'' in great numbers can reduce this leaf litter and so disrupt nutrient cycling and encourage nutrient loss in these areas which have no history of earthworm activity<ref name="Bohlen2"></ref>. This disruption of nutrient cycling and mixing of soil horizons may also affect processes which occur within the [[rhizosphere]], and other microfauna which interacts with [[plant roots]] belowground.


	== References ==		== References ==
	<references />		<references />

Cchorose at 03:13, 3 May 2022

2022-05-03T03:13:28Z

← Older revision		Revision as of 23:13, 2 May 2022
Line 44:		Line 44:

	=== Diet ===		=== Diet ===
	''L. terrestris'' tends to eat the surface litter on the soil in which they live, as well as whatever they happen to eat while moving through the soil; which of course, includes the soil itself<ref name="mulci">A. Milcu, J. Schumacher, S. Scheu, "Earthworms (Lumbricus terrestris) affect plant seedling recruitment and microhabitat heterogeneity", ''Functional Ecology , Apr., 2006, Vol. 20, No. 2 (Apr., 2006), pp. 261-268''. April 2006. Retrieved 5/1/2022.</ref>.		''L. terrestris'' tends to eat the surface litter on the soil in which they live, as well as whatever they happen to eat while moving through the soil which, of course, includes the soil itself<ref name="mulci">A. Milcu, J. Schumacher, S. Scheu, "Earthworms (Lumbricus terrestris) affect plant seedling recruitment and microhabitat heterogeneity", ''Functional Ecology , Apr., 2006, Vol. 20, No. 2 (Apr., 2006), pp. 261-268''. April 2006. Retrieved 5/1/2022.</ref>.

	=== Reproduction ===		=== Reproduction ===

Cchorose at 03:12, 3 May 2022

2022-05-03T03:12:44Z

← Older revision		Revision as of 23:12, 2 May 2022
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	=== Reproduction ===		=== Reproduction ===
	The nightcrawler is a hermaphroditic species, reproducing as most members of the Opisthopora order do. The key mechanism to remember where it concerns earthworm reproduction is simply: mucus. The earthworms arrange themselves in opposite directions, lining up their spermataphores with the other worm's spermathecal pore where the sperm will be stored in a sperm sack until it is released in a cocoon along with fertilized eggs likely to be deposited near the soil surface<ref name="worm sex">Jefferey, "Earthworm Reproduction – How Do Worms Reproduce?", ''TheWormPeople''. 24 April 2021. Retrieved 5/2/2022.</ref>.		The nightcrawler is a hermaphroditic species, reproducing as most members of the Opisthopora order do. The key mechanism to remember where it concerns earthworm reproduction is simply: mucus. The earthworms arrange themselves in opposite directions, lining up their spermataphores with the other worm's spermathecal pore where the sperm will be stored in a sperm sack until it is released in a cocoon along with fertilized eggs likely to be deposited near the soil surface<ref name="worm sex">Jefferey, "Earthworm Reproduction – How Do Worms Reproduce?", ''TheWormPeople''. 24 April 2021. Retrieved 5/2/2022.</ref>.
	[[File:L_terrestris_diagram.png\|right\|thumb\|400px\|A diagram illustrating the different parts of ''L. terrestris.'']]		[[File:L_terrestris_diagram.png\|right\|thumb\|400px\|A: A diagram illustrating the different parts of ''L. terrestris.'' B: A diagram illustrating two individuals of ''L. terrestris'' mating]]

	=== Effect as an Invasive Species ===		=== Effect as an Invasive Species ===

Cchorose at 02:09, 3 May 2022

2022-05-03T02:09:23Z

← Older revision		Revision as of 22:09, 2 May 2022
Line 47:		Line 47:

	=== Reproduction ===		=== Reproduction ===
	The nightcrawler is a hermaphroditic species, reproducing as most members of the Opisthopora order do. The key mechanism to remember where it concerns earthworm reproduction is simply: mucus. The earthworms arrange themselves in opposite directions, lining up their spermataphores with the other worm's spermathecal pore where the sperm will be stored in a sperm sack until it is released in a cocoon along with fertilized eggs likely to be deposited near the soil surface<ref name="worm sex">Jefferey, "Earthworm Reproduction – How Do Worms Reproduce?", TheWormPeople. April ~~24 2006~~. Retrieved 5/2/2022.</ref>.		The nightcrawler is a hermaphroditic species, reproducing as most members of the Opisthopora order do. The key mechanism to remember where it concerns earthworm reproduction is simply: mucus. The earthworms arrange themselves in opposite directions, lining up their spermataphores with the other worm's spermathecal pore where the sperm will be stored in a sperm sack until it is released in a cocoon along with fertilized eggs likely to be deposited near the soil surface<ref name="worm sex">Jefferey, "Earthworm Reproduction – How Do Worms Reproduce?", ''TheWormPeople''. 24 April 2021. Retrieved 5/2/2022.</ref>.
			[[File:L_terrestris_diagram.png\|right\|thumb\|400px\|A diagram illustrating the different parts of ''L. terrestris.'']]

	=== Effect as an Invasive Species ===		=== Effect as an Invasive Species ===
			Despite being introduced over 100 years ago, ''L. terrestris'' still is not a native earthworm to the northern portion of the United States. The well-supported theory is that native earthworm species are effectively non-existent in the northern forests of North America because the last glacial period prevented earthworms from living in the area through its duration; in addition, due to the small size of earthworms, it is difficult for them to swiftly colonize on their own<ref name="Bohlen2">Patrick J. Bohlen, Peter M. Groffman, Timothy J. Fahey, Melany C. Fisk, Esteban Suarez, Derek M. Pelletier, and Robert T. Fahey, "Ecosystem Consequences of Exotic Earthworm Invasion of North Temperate Forests", ''Ecosystems (2004) 7: 1–12'', 12 January 2004. Retrieved 5/2/2022 </ref>. The effect of an anecic earthworm in particular, which eats litter layer, has serious impacts on Northern temperate deciduous forests. The annual loss of leaves and [[decomposition]] of these leaves on the forest floor is what leads to nutrient cycling on the forest floor and creates fertile soil in these forests. The addition of ''L. terrestris'' in great numbers can reduce this leaf litter and so disrupt nutrient cycling and encourage nutrient loss in these areas which have no history of earthworm activity<ref name="Bohlen2"></ref>. This disruption of nutrient cycling and mixing of soil horizons may also affect processes which occur within the [[rhizosphere]], and other microfauna which interacts with [[plant roots]] belowground.


	== References ==		== References ==
	<references />		<references />

Cchorose at 01:44, 3 May 2022

2022-05-03T01:44:33Z

← Older revision		Revision as of 21:44, 2 May 2022
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	{\| class="wikitable" style="text-align:center; float:right; margin-left: 10px;		{\| class="wikitable" style="text-align:center; float:right; margin-left: 10px;
	\|+ !colspan="2" style="min-width:~~15em~~; text-align: center; background-color: rgb(235,235,210)\|'''Scientific Classification'''		\|+ !colspan="2" style="min-width:12em; text-align: center; background-color: rgb(235,235,210)\|'''Scientific Classification'''
	\|-		\|-
	\|colspan="2" \|[[File:l_terrestris_2.jpg\|300px\|caption]]		\|colspan="2" \|[[File:l_terrestris_2.jpg\|300px\|caption]]
	\|-		\|-
	!style="min-width:~~7.5em~~; \|Kingdom:		!style="min-width:6em; \|Kingdom:
	\|style="min-width:~~7.5em~~; \|[[Animals\|Animalia]]		\|style="min-width:6em; \|[[Animals\|Animalia]]
	\|-		\|-
	!style="min-width:~~7.5em~~; \|Phylum:		!style="min-width:6em; \|Phylum:
	\|style="min-width:~~7.5em~~; \|Annelida		\|style="min-width:6em; \|Annelida
	\|-		\|-
	!style="min-width:~~7.5em~~; \|Class:		!style="min-width:6em; \|Class:
	\|style="min-width:~~7.5em~~; \|Clitellata		\|style="min-width:6em; \|Clitellata
	\|-		\|-
	!style="min-width:~~7.5em~~; \|Order:		!style="min-width:6em; \|Order:
	\|style="min-width:~~7.5em~~; \|Opisthopora		\|style="min-width:6em; \|Opisthopora
	\|-		\|-
	!style="min-width:~~7.5em~~; \|Family:		!style="min-width:6em; \|Family:
	\|style="min-width:~~7.5em~~; \|Lumbricidae		\|style="min-width:6em; \|Lumbricidae
	\|-		\|-
	!style="min-width:~~7.5em~~; \|Genus:		!style="min-width:6em; \|Genus:
	\|style="min-width:~~7.5em~~; \|''Lumbricus''		\|style="min-width:6em; \|''Lumbricus''
	\|-		\|-
	!style="min-width:~~7.5em~~; \|Species:		!style="min-width:6em; \|Species:
	\|style="min-width:~~7.5em~~; \|''L. terrestris''		\|style="min-width:6em; \|''L. terrestris''
	\|-		\|-
	\|colspan="2" \|Source: Integrated Taxonomic Information System<ref name="ITIS">[https://www.itis.gov/servlet/SingleRpt/SingleRpt?search_topic=TSN&search_value=977384#null "Integrated Taxonomic Information System - Report"], ''ITIS'' USGS Open-File Report 2006-1195: Nomenclature", ''USGS'', n.d.. Retrieved 5/1/2022.</ref>		\|colspan="2" \|Source: Integrated Taxonomic Information System<ref name="ITIS">[https://www.itis.gov/servlet/SingleRpt/SingleRpt?search_topic=TSN&search_value=977384#null "Integrated Taxonomic Information System - Report"], ''ITIS'' USGS Open-File Report 2006-1195: Nomenclature", ''USGS'', n.d.. Retrieved 5/1/2022.</ref>
Line 33:		Line 33:

	== Description ==		== Description ==
	[[File:L_terrestris_1.JPG\|~~right~~\|150px\|thumb\|An individual of the species ''L. terrestris.'']]		[[File:L_terrestris_1.JPG\|left\|150px\|thumb\|An individual of the species ''L. terrestris.'']]
	The nightcrawler is a larger earthworm ~~than some~~: length averages between 110-200 mm, with a diameter of 7-10 mm. ~~The worm is~~ a dark brown, with a reddish hue which fades towards the end, which is slightly flattened. <ref name="CABI">S James, [https://www.cabi.org/isc/datasheet/109385 "Data Sheet: Lumbricus Terrestris"], ''CABI'', Invasive Species Compendium, 22/12/10. Retrieved 5/1/2022.</ref>		Like all earthworms, ''L. terrestris'' is a soft-bodied, cylindrical, segmented animal<ref name="Coleman">Coleman, D. C., and D. A. Crossley, "Fundamentals of [[Soil Ecology]]. Third edition.", ''Elsevier/Academic Press, London ; San Diego, CA.'', 2018. Retrieved 3/29/2022.</ref>. The nightcrawler is a relatively larger earthworm: length averages between 110-200 mm, with a diameter of 7-10 mm. They're usually a dark brown color, with a reddish hue which fades towards the end, which is slightly flattened; the coloration pattern is referred to as being dorsally pigmented<ref name="CABI">S James, [https://www.cabi.org/isc/datasheet/109385 "Data Sheet: Lumbricus Terrestris"], ''CABI'', Invasive Species Compendium, 22/12/10. Retrieved 5/1/2022.</ref>. The puffy looking 'pad' in the middle of the worm is known as the clitellum; this is the source of secretion of mucous used during mating between ''L. terrestris'' individuals, as well as where the cocoon containing one or more embryos is secreted from<ref name="Coleman"></ref>.
			<br></br>
			''L. terrestris'' also has setae, small and stiff hair-like bristles which are used to help anchor and control the worm's movement through the soil. On ''L. terrestris'' the setae is closely paired, with some variation across the body.<ref name="CABI"></ref>

	== Ecology ==		== Ecology ==
	''L. terrestris'' is an anecic earthworm, one which burrows far down into the soil and ~~tends to eat the surface litter on~~ the soil in which ~~they live~~<ref name="~~mulci~~">A. ~~Milcu~~, ~~J. Schumacher~~, S. ~~Scheu,~~ "~~Earthworms (Lumbricus terrestris) affect plant seedling recruitment~~ and ~~microhabitat heterogeneity~~", ~~''Functional Ecology , Apr~~., ~~2006~~, ~~Vol~~. 20, ~~No. 2 (Apr~~., ~~2006), pp. 261-268''. April 2006. Retrieved 5/1/2022.</ref>~~.		''L. terrestris'' is an anecic earthworm, one which creates deep burrows far down into the soil<ref name="Coleman"></ref>. Earthworms in general are engineers of the surrounding environment in soil due to their close relationship with soil, and anecic earthworms are very impactful of the soil environment because of their characteristic deep burrows, which tend to be permanent<ref name="Coleman"></ref>. The burrows not only bring leaf litter down further into the soil profile, but also the earthworms deposit middens above ground, creating small areas where there are increased nutrients and soil from further below in the soil profile.<ref name="Coleman"></ref>
			<br></br>
			The soil mixing which anecic earthworms perform means that the soil horizons in which they live and interact with are known as "mull" soil horizons, which is when organic matter is extremely well mixed into the upper mineral soil. This has an extreme end to the spectrum, where the horizon is extremely granular, and characterized by organic mineral complexes which consist of earthworm casts; this is known as "vermimull"<ref name="Coleman"></ref> This is extremely common in areas where ''L. terrestris'' is abundant and an exotic species, such as Western New York. If you see small granular piles on the ground outside, this is the result of many earthworms in the area.

	=== Diet ===		=== Diet ===
			''L. terrestris'' tends to eat the surface litter on the soil in which they live, as well as whatever they happen to eat while moving through the soil; which of course, includes the soil itself<ref name="mulci">A. Milcu, J. Schumacher, S. Scheu, "Earthworms (Lumbricus terrestris) affect plant seedling recruitment and microhabitat heterogeneity", ''Functional Ecology , Apr., 2006, Vol. 20, No. 2 (Apr., 2006), pp. 261-268''. April 2006. Retrieved 5/1/2022.</ref>.

	=== Reproduction ===		=== Reproduction ===
			The nightcrawler is a hermaphroditic species, reproducing as most members of the Opisthopora order do. The key mechanism to remember where it concerns earthworm reproduction is simply: mucus. The earthworms arrange themselves in opposite directions, lining up their spermataphores with the other worm's spermathecal pore where the sperm will be stored in a sperm sack until it is released in a cocoon along with fertilized eggs likely to be deposited near the soil surface<ref name="worm sex">Jefferey, "Earthworm Reproduction – How Do Worms Reproduce?", TheWormPeople. April 24 2006. Retrieved 5/2/2022.</ref>.

	=== Effect as an Invasive Species ===		=== Effect as an Invasive Species ===


	== References ==		== References ==
	<references />		<references />

Cchorose at 18:15, 2 May 2022

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	== Description ==		== Description ==
	[[File:L_terrestris_1.JPG\|150px\|~~right~~\|~~Caption:~~ An individual of the species ''L. terrestris.'']]		[[File:L_terrestris_1.JPG\|right\|150px\|thumb\|An individual of the species ''L. terrestris.'']]
	The nightcrawler is a larger earthworm than some: length averages between 110-200 mm, with a diameter of 7-10 mm. The worm is a dark brown, with a reddish hue which fades towards the end, which is slightly flattened. <ref name="CABI">S James, [https://www.cabi.org/isc/datasheet/109385 "Data Sheet: Lumbricus Terrestris"], ''CABI'', Invasive Species Compendium, 22/12/10. Retrieved 5/1/2022.</ref>		The nightcrawler is a larger earthworm than some: length averages between 110-200 mm, with a diameter of 7-10 mm. The worm is a dark brown, with a reddish hue which fades towards the end, which is slightly flattened. <ref name="CABI">S James, [https://www.cabi.org/isc/datasheet/109385 "Data Sheet: Lumbricus Terrestris"], ''CABI'', Invasive Species Compendium, 22/12/10. Retrieved 5/1/2022.</ref>

Cchorose at 18:04, 2 May 2022

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	== Ecology ==		== Ecology ==
	''L. terrestris'' is an anecic earthworm, one which burrows far down into the soil ~~which tend~~ to eat the surface litter on the soil in which they live<ref name="mulci">A. Milcu, J. Schumacher, S. Scheu, "Earthworms (Lumbricus terrestris) affect plant seedling recruitment and microhabitat heterogeneity", ''Functional Ecology , Apr., 2006, Vol. 20, No. 2 (Apr., 2006), pp. 261-268''. April 2006. Retrieved 5/1/2022.</ref>.		''L. terrestris'' is an anecic earthworm, one which burrows far down into the soil and tends to eat the surface litter on the soil in which they live<ref name="mulci">A. Milcu, J. Schumacher, S. Scheu, "Earthworms (Lumbricus terrestris) affect plant seedling recruitment and microhabitat heterogeneity", ''Functional Ecology , Apr., 2006, Vol. 20, No. 2 (Apr., 2006), pp. 261-268''. April 2006. Retrieved 5/1/2022.</ref>.

	=== Diet ===		=== Diet ===

Cchorose at 03:25, 2 May 2022

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	\|-		\|-
	!style="min-width:7.5em; \|Kingdom:		!style="min-width:7.5em; \|Kingdom:
	\|style="min-width:7.5em; \|Animalia		\|style="min-width:7.5em; \|[[Animals\|Animalia]]
	\|-		\|-
	!style="min-width:7.5em; \|Phylum:		!style="min-width:7.5em; \|Phylum:
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	!style="min-width:7.5em; \|Species:		!style="min-width:7.5em; \|Species:
	\|style="min-width:7.5em; \|''L. terrestris''		\|style="min-width:7.5em; \|''L. terrestris''
			\|-
			\|colspan="2" \|Source: Integrated Taxonomic Information System<ref name="ITIS">[https://www.itis.gov/servlet/SingleRpt/SingleRpt?search_topic=TSN&search_value=977384#null "Integrated Taxonomic Information System - Report"], ''ITIS'' USGS Open-File Report 2006-1195: Nomenclature", ''USGS'', n.d.. Retrieved 5/1/2022.</ref>
	\|}		\|}
	~~''Lumbricus terrestris'' is an [[earthworm]].~~

	== ~~Common Names~~ ==		''Lumbricus terrestris'' is a species of [[earthworm]] which has been distributed across a majority of the globe due to farming practices and commercial industries<ref name="Bohlen">Patrick J Bohlen, Stefan Scheu, Cindy M Hale, Mary Ann McLean, Sonja Migge, Peter M Groffman, and Dennis Parkinson, "Non-native invasive earthworms as agents
			of change in northern temperate forests", ''Front Ecol Environ 2004; 2(8): 427–435'', 2004. Retrieved 5/1/2022.</ref> Due to its wide distribution, the worm has a variety of common names, including nightcrawler, Canadian nightcrawler, and dewworm<ref name="ITIS"></ref>.
			As an earthworm, its habits are critical to observe because of its effect on the [[soil]] structure around it. ''L. terrestris'' is thought to have originated from Europe, because its introduction occurs with European settlement; there has been some suggestions that the nightcrawler came first with the landing of the Mayflower in North America<ref name="[[henshue]]">Nicholas Henshue, "Earthworm [[Diversity]]", ''Soil [[Ecology]]: University at Buffalo'', 4/6/2022. Retrieved 5/1/2022.</ref>. The environmental effect of this earthworm as an exotic species in North American temperate forests especially has only just started to be more intensely studied in the last three decades<ref name="Bohlen"></ref>.

			== Description ==
			[[File:L_terrestris_1.JPG\|150px\|right\|Caption: An individual of the species ''L. terrestris.'']]
			The nightcrawler is a larger earthworm than some: length averages between 110-200 mm, with a diameter of 7-10 mm. The worm is a dark brown, with a reddish hue which fades towards the end, which is slightly flattened. <ref name="CABI">S James, [https://www.cabi.org/isc/datasheet/109385 "Data Sheet: Lumbricus Terrestris"], ''CABI'', Invasive Species Compendium, 22/12/10. Retrieved 5/1/2022.</ref>


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	== Ecology ==		== Ecology ==
			''L. terrestris'' is an anecic earthworm, one which burrows far down into the soil which tend to eat the surface litter on the soil in which they live<ref name="mulci">A. Milcu, J. Schumacher, S. Scheu, "Earthworms (Lumbricus terrestris) affect plant seedling recruitment and microhabitat heterogeneity", ''Functional Ecology , Apr., 2006, Vol. 20, No. 2 (Apr., 2006), pp. 261-268''. April 2006. Retrieved 5/1/2022.</ref>.

	=== Diet ===		=== Diet ===
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	=== Reproduction ===		=== Reproduction ===

	== Effect as an Invasive Species ==		=== Effect as an Invasive Species ===

			== References ==
			<references />