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Soil organisms, including earthworms, are a key component of terrestrial ecosystems. However, little is known about their diversity, their distribution, and the threats affecting them. We compiled a global dataset of sampled earthworm communities from 6928 sites in 57 countries as a basis for predicting patterns in earthworm diversity, abundance, and biomass. We found that local species richness and abundance typically peaked at higher latitudes, displaying patterns opposite to those observed in aboveground organisms. However, high species dissimilarity across tropical locations may cause diversity across the entirety of the tropics to be higher than elsewhere. Climate variables were found to be more important in shaping earthworm communities than soil properties or habitat cover. These findings suggest that climate change may have serious implications for earthworm communities and for the functions they provide.
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Molecular biology: made simple and fun / David P. Clark and Lonnie D. Russell | |
Clark, David P. ; Russell, Lonnie Dee (coaut.) ; | |
St. Louis, MO : Cache River Press , c2010 | |
Clasificación: 574.88 / C5 | |
Bibliotecas:
Chetumal
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The molecular revolution is upon us! For those who expect to be part of what's happening in the 21st century, the impact of molecular genetics research should not be underestimated. The authors present a simple and fun approach to the topic of molecular biology. Written primarily for the science student, but suitable for the non-scientist, this book will give the reader a solid understanding of the fundamentals and tools of molecular biology. The book also details how this rapidly advancing field has and will continue to have an impact on health, law, agriculture, biotechnology and our understanding of the origin of the species.
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Molecular cloning: a laboratory manual / Joseph Sambrook, David William Russell | |
Sambrook, Joseph (autor) ; Rusell, David William (autor) ; | |
Cold Spring Harbor, New York : Cold Spring Harbor Laboratory Press , 2001 | |
Clasificación: C/574.873224 / S2/2001 | |
Cerrar
SIBE Chetumal
ECO030006656
(Disponible)
, ECO030006655
(Disponible)
, ECO030006654
(Disponible)
Disponibles para prestamo: 3
Cerrar
SIBE Tapachula
ECO020007816
(Disponible)
, ECO020007815
(Disponible)
, ECO020007814
(Disponible)
Disponibles para prestamo: 3 |
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