The role of Pleistocene forest refugia in the evolution and biogeography of tropical biotas

Trends in Ecology & Evolution
E F Connor

Abstract

Refuge theory postulates that repeated oscillation of dry and moist climatic periods during the Pleistocene caused an alternating fragmentation and coalescence of areas of lowland tropical rainforest vegetation, leading to genetic differentiation and speciation in isolated populations of rainforest organisms and hence accounting for much of the high diversity now apparent in these habitats. The theory, which became widely accepted during the 1970s, is still based largely on inferences from modern species distribution patterns and on selected palaeoclimatic and geomorphic data. However, much of this evidence has multiple interpretations; indeed, modern population genetic theory argues against many of the tenets of refuge theory. Moreover, there is no palynological evidence against which refuge theory might be tested. Although large-scale dynamic processes have undoubtedly played many parts in promoting diversity in tropical rainforest, refuge theory must be seriously questioned on many counts.

References

Mar 1, 1982·British Journal of Sports Medicine·B Kristiansen
Aug 1, 1984·Proceedings of the National Academy of Sciences of the United States of America·B W Leyden
Mar 19, 1976·Science·CLIMAP Project Members
Jan 4, 1985·Science·R L SanfordR Herrera
Dec 18, 1981·Science·J P BradburyF H Weibezahn
Jul 11, 1969·Science·J Haffer

Citations

Aug 13, 2005·Biological Reviews of the Cambridge Philosophical Society·Jean-François Ponge
Jan 1, 1995·Journal of Neural Transmission. General Section·A Fredriksson, T Archer
Jan 11, 2019·PloS One·M Esther Jiménez LópezBruce R Mate
Apr 25, 2019·Ecology and Evolution·Daniel Gomes da Rocha, Igor L Kaefer
Aug 1, 1996·Evolution; International Journal of Organic Evolution·Robb T Brumfield, A P Capparella

Related Concepts

Biological Evolution
Patterns
Brain Waves
Habitat
Genetic Drift
Population Group
Tropical Disease
Species

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Synthetic Genetic Array Analysis

Synthetic genetic arrays allow the systematic examination of genetic interactions. Here is the latest research focusing on synthetic genetic arrays and their analyses.

Congenital Hyperinsulinism

Congenital hyperinsulinism is caused by genetic mutations resulting in excess insulin secretion from beta cells of the pancreas. Here is the latest research.

Neural Activity: Imaging

Imaging of neural activity in vivo has developed rapidly recently with the advancement of fluorescence microscopy, including new applications using miniaturized microscopes (miniscopes). This feed follows the progress in this growing field.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Epigenetic Memory

Epigenetic memory refers to the heritable genetic changes that are not explained by the DNA sequence. Find the latest research on epigenetic memory here.

Cell Atlas of the Human Eye

Constructing a cell atlas of the human eye will require transcriptomic and histologic analysis over the lifespan. This understanding will aid in the study of development and disease. Find the latest research pertaining to the Cell Atlas of the Human Eye here.

Femoral Neoplasms

Femoral Neoplasms are bone tumors that arise in the femur. Discover the latest research on femoral neoplasms here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.