Tropical Ecology and Conservation [Monteverde Institute]

Alternative Title

Efectos en la densidad de población de nematodos del suelo en la abundancia y los niveles de nitrógeno


Sarah Hulick



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Publication Date

May 2009


This study investigates the effects on human population density on soil properties and found significant effects in nematode abundance and soil nitrogen levels. Five locations with differing human population densities around Monteverde, Costa Rica were chosen for soil sampling to conduct chemical tests and microfauna extractions. Chi square test (p = 0.02) prove that the differing soil location caused changes in nematode abundance, and a regression between nematode abundance and soil nitrogen (R square = .96) proved a strong relationship between the two. From this study we can see the impacts of human disturbance on levels of nitrogen and nematode abundance within our soil systems. En este estudio investigue los efectos de la densidad poblacional en las características del suelo y encontré una correlación entre la abundancia de nematodos y los niveles de nitrógeno en el suelo. Se escogieron cinco lugares para hacer muestras del suelo con diferentes densidades poblacionales cerca de Monteverde, Costa Rica con el fin de hacer un análisis químico y hacer extracciones de micro fauna.


Population density, Densidad de poblacion, Soil nematodes, Nematodos del suelo, Soils--Nitrogen content, Suelos--Contenido de nitrogeno, Costa Rica--Puntarenas--Monteverde Zone, Costa Rica--Puntarenas--Zona de Monteverde, CIEE Spring 2009, CIEE Primavera 2009


Student affiliation : Agricultural Sciences, College of Agriculture and Life Sciences, Cornell University Born Digital

Subject: topical

Population density; Densidad de poblacion; Soil nematodes; Nematodos del suelo; Soils--Nitrogen content; Suelos--Contenido de nitrogeno; CIEE Spring 2009; CIEE Primavera 2009

Subject: geographic

Costa Rica--Puntarenas--Monteverde Zone; Costa Rica--Puntarenas--Zona de Monteverde



Holding Location

Monteverde Institute MVI



Human population density effects on soil nematode abundance and nitrogen levels



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