The Vertical Extent of Groundwater Metazoans: An Ecological and Evolutionary Perspective

Citation

Material Information

Title:
The Vertical Extent of Groundwater Metazoans: An Ecological and Evolutionary Perspective
Series Title:
BioScience
Creator:
Fiser, Cene
Pipan, Tanja
Culver, David C.
Publisher:
Oxford Academic
Publication Date:
Language:
English

Subjects

Subjects / Keywords:
Aphotic Habitats ( local )
Ecological Boundaries, Extreme Environments, Habitat Choice Behavior ( local )
Limits Of Life ( local )
Genre:
serial ( sobekcm )

Notes

Abstract:
We investigated the upper and lower vertical limits of the distribution of inhabitants of the most abundant freshwater habitat—groundwater. Distribution in photic habitats is limited by competition, predation, and risks of exposure to ultraviolet radiation. Nonetheless, a number of eyeless, depigmented subterranean species occur in twilight habitats, taking advantage of the higher food resources available and modulating their distribution by photophobic behavior. We argue that the upper boundary is an interesting system in the study of classic ecological and evolutionary questions. The lower boundary of the distribution of groundwater species (approximately 2000—4000 meters) is likely controlled by physicochemical parameters, including temperature, pressure, and oxygen. The lower boundary warrants further research, and it is one of the most poorly explored areas of the biosphere.
Original Version:
BioScience, Vol. 64, no. 11 (2014-09-19).

Record Information

Source Institution:
University of South Florida Library
Holding Location:
University of South Florida
Rights Management:
This object is protected by copyright, and is made available here for research and educational purposes. Permission to reuse, publish, or reproduce the object beyond the bounds of Fair Use or other exemptions to copyright law must be obtained from the copyright holder.

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