NDLI: Spatial variability of an invasive earthworm (Amynthas agrestis) population and potential impacts on soil characteristics and millipedes in the Great Smoky Mountains National Park, USA

Content Provider	Springer Nature Link
Author	Snyder, Bruce A. Callaham, Mac A. Hendrix, Paul F.
Copyright Year	2010
Abstract	European and Asian earthworm invasions are widespread in North America. European earthworms especially are well-known to cause dramatic changes in ecosystems in northern, formerly glaciated portions of the continent, but less is known about the impacts of earthworm invasions in unglaciated areas inhabited by indigenous earthworms. We monitored fluctuations in the spatial extent of an Amynthas agrestis (Megascolecidae) population in the Great Smoky Mountains National Park in eastern Tennessee, USA. Two years of monthly growing-season observations revealed that the distribution of the earthworm population was dynamic, but overall distribution was closely linked to temperature and moisture with dramatic reductions of earthworm numbers associated with very dry conditions. In plots where A. agrestis were more often detected, we measured increased A-horizon soil aggregation and decreased thickness of the Oe/Oa-horizon. However, A. agrestis was not related to A-horizon microbial biomass, A-horizon C:N, Oi-horizon (litter) thickness, or mass of forest floor (O-horizon). Reductions in millipede species richness and density were associated with frequency of A. agrestis presence, possibly due to direct competition for food resources (Oe/Oa material). This evidence for potentially negative interactions between millipedes and A. agrestis suggests that expansion of the non-native earthworm into new habitats in the Park may alter soil physical properties and could pose a threat to native millipede diversity.
Starting Page	349
Ending Page	358
Page Count	10
File Format	PDF
ISSN	13873547
Journal	Biological Invasions
Volume Number	13
Issue Number	2
e-ISSN	15731464
Language	English
Publisher	Springer Netherlands
Publisher Date	2010-07-01
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Earthworm Amynthas Invasive species Millipede Soil aggregation Developmental Biology Ecology Plant Sciences Freshwater & Marine Ecology
Content Type	Text
Resource Type	Article
Subject	Ecology Ecology, Evolution, Behavior and Systematics

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

A preliminary checklist of the millipedes (Diplopoda) of the Great Smoky Mountains National Park, USA

Species richness of soil and leaf litter tardigrades in the Great Smoky Mountains National Park (North Carolina/Tennessee, USA)

Effects of non-native Asian earthworm invasion on temperate forest and prairie soils in the Midwestern US

Characterizing Backcountry Camping Impacts and Their Spatial Patterns in Great Smoky Mountains National Park

A METAPOPULATION MODEL FOR FERAL HOGS IN GREAT SMOKY MOUNTAINS NATIONAL PARK

Occurrence of an exotic earthworm ( Amynthas agrestis ) in undisturbed soils of the southern Appalachian Mountains, USA

Soil microaggregate bacterial communities following Amynthas tokioensis and Amynthas agrestis earthworm co-invasion

Measurement of ambient aerosol hydration state at Great Smoky Mountains National Park in the Southeastern United States

Broad and local-scale patterns of exotic earthworm functional groups in forests of National Wildlife Refuges of the Upper Midwest, USA

Spatial variability of an invasive earthworm (Amynthas agrestis) population and potential impacts on soil characteristics and millipedes in the Great Smoky Mountains National Park, USA

Similar Documents

A preliminary checklist of the millipedes (Diplopoda) of the Great Smoky Mountains National Park, USA

Species richness of soil and leaf litter tardigrades in the Great Smoky Mountains National Park (North Carolina/Tennessee, USA)

Effects of non-native Asian earthworm invasion on temperate forest and prairie soils in the Midwestern US

Characterizing Backcountry Camping Impacts and Their Spatial Patterns in Great Smoky Mountains National Park

A METAPOPULATION MODEL FOR FERAL HOGS IN GREAT SMOKY MOUNTAINS NATIONAL PARK

Occurrence of an exotic earthworm ( Amynthas agrestis ) in undisturbed soils of the southern Appalachian Mountains, USA

Soil microaggregate bacterial communities following Amynthas tokioensis and Amynthas agrestis earthworm co-invasion

Measurement of ambient aerosol hydration state at Great Smoky Mountains National Park in the Southeastern United States

Broad and local-scale patterns of exotic earthworm functional groups in forests of National Wildlife Refuges of the Upper Midwest, USA

Spatial variability of an invasive earthworm (Amynthas agrestis) population and potential impacts on soil characteristics and millipedes in the Great Smoky Mountains National Park, USA