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Relatively little is known about the earthworm fauna of southern California. Some 20 different species of earthworms were collected and identified in a survey of various southern California wildland habitats. The ecology and biology of earthworms are outlined, and the results of the survey are…
Author(s): Hulton B. Wood, Samuel W. James
Keywords: Earthworms, Mediterranean ecosystems, southern California, new species, Lumbricidae, Megascolecidae, Acanthodrilinae, Ocnerodrilinae, Sparganophilidae, soil, habitat, chaparral, grassland, woodland, riparian, aquatic
Source: Gen. Tech. Rep. PSW-142. Albany, CA: U.S. Department of Agriculture, Forest Service, Pacific Southwest Research Station. 20 p
Year: 1993
In this study, we describe earthworm communities along an elevation gradient of eight forest types in Northeastern Puerto Rico, and determine whether their abundance, biomass and/or diversity is related to climatic, soil physical/chemical and/or biotic characteristics. We found that the density,…
Author(s): Grizelle Gonzalez, Emerita Garcia, Veronica Cruz, Sonia Borges, Marcela Zalamea, Maria M. Rivera
Keywords: Earthworms, Tropics, Mature forests, Natives, Puerto Rico
Source: European Journal of Soil Biology 43:S24-S32
Year: 2007
This special issue is based on scientific contributions presented at the 2nd Latin American Symposium of Earthworm Ecology and Taxonomy (ELAETAO, for its Spanish acronym) held in San Juan, Puerto Rico November 14-18, 2005. The first of these symposia was organized by George G. Brown and Klaus D.…
Author(s): Grizelle Gonzalez
Keywords: Earthworms, Species in Latin America, Oligochaeta
Source: Caribbean Journal of Science. 42(3) :281-284,
Year: 2006
The effects and implications of invasive species in belowground terrestrial ecosystems are not well known in comparison with aboveground terrestrial and marine environments. The study of earthworm invasions in the tropics is limited by a lack of taxonomic knowledge and the potential for loss of…
Author(s): Grizelle Gonzalez, Ching-Yu Huang, Xiaoming Zou, Carlos Rodriguez
Keywords: Tropics, Earthworms, Exotic, Native, Caribbean, Invasion
Source: Springer Science+Business Media B.V. Biol Invasions DOI 10.1007/s10530-006-9023-7
Year: 2006
This study investigated the possibility of a facilitative relationship between Chinese privet (Ligustrum sinense) and exotic earthworms, in the southeastern region of the USA. Earthworms and selected soil properties were sampled five years after experimental removal of privet from flood plain…
Author(s): Joshua W. Lobe, Mac A. Callaham Jr., Paul F. Hendrix, James L Hanula
Keywords: Earthworms, Invasive plants, Native earthworms, Chinese privet, Exotic earthworms, Facilitation
Source: Applied Soil Ecology Volume 83, November 2014, 6 p.
Year: 2014
With the vast amount of abandoned tropical land due to non- sustainable farming practices, tropical tree-plantations become an effective means in restoring soil productivity and preserving ecosystem biodiversity. Because earthworms are the dominant soil fauna in moist tropical regions and play an…
Author(s): X Zou, Grizelle Gonzalez
Keywords: Earthworms, tropical tree plantations, forest management, forest fertilization, soil carbon, nutrient use efficiency
Source: Management of Tropical Plantation-Forests and their Soil Litter System: Litter, Biota and Soil Nutrient Dynamics. M. V. Reddy Ed. Science Publishers, Inc. Enfield (NH), USA.
Year: 2001
Invasive earthworms perturb natural forest ecosystems that initially developed without them, mainly by consuming the forest floor (an organic rich surficial soil horizon) and by mixing the upper parts of the soil. The fate of mercury (Hg) formerly contained in the forest floor is largely unknown.…
Author(s): Sona Psarska, Edward A. Nater, Randy Kolka
Keywords: Mercury, Earthworms, Forest soil, Mass balance
Source: Water, Air, and Soil Pollution. 227(6). (12 p.).
Year: 2016
Declines in the diversity of herbaceous and woody plant species in the understory of eastern North American hardwood forests are increasingly common. Forest managers are tasked with maintaining and/or promoting species diversity and resilience; however, the success of these efforts depends on a…
Author(s): Christopher R. Webster, Yvette L. Dickinson, Julia I Burton, Lee E. Frelich, Michael A. Jenkins, Christel C. Kern, Patricia Raymond, Michael R. Saunders, Michael B. Walters, John L. Willis
Keywords: Deer browse, Earthworms, Herbaceous layer, Invasive exotic species, Resiliency, Restoration, Silviculture
Source: Forest Ecology and Management
Year: 2018
This study examined the distribution of metals in residential soils from the scale of a residential yard to a metropolitan area by comparing residences along an urbanization gradient in the Baltimore–Washington area, USA. In addition, earthworms and terrestrial isopods were sampled from residential…
Author(s): Richard V. Pouyat, Katalin Szlavecz, Ian D. Yesilonis, Christina P. Wong, Laura Murawski, Peter Marra, Ryan E. Casey, Steven Lev
Keywords: Earthworms, Heavy metals, Isopods, Soil, Urban, Urbanization gradient
Source: Landscape and Urban Planning
Year: 2015