Author
John Warren Huntley
Other affiliations: Lawrence University, Virginia Tech, University of Erlangen-Nuremberg
Bio: John Warren Huntley is an academic researcher from University of Missouri. The author has contributed to research in topics: Predation & Holocene. The author has an hindex of 16, co-authored 40 publications receiving 922 citations. Previous affiliations of John Warren Huntley include Lawrence University & Virginia Tech.
Papers
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TL;DR: A species-level database of predation intensity, as measured by the frequency of common predation traces, suggests that macroevolutionary and macroecological patterns share common causative mechanisms that may reflect either historical processes or sampling artifacts.
Abstract: The importance of ecological interactions in driving the evolution of animals has been the focus of intense debate among paleontologists, evolutionary biologists, and macroecologists. To test whether the intensity of such interactions covaries with the secular evolutionary trend in global biodiversity, we compiled a species-level database of predation intensity, as measured by the frequency of common predation traces (drillings and repair scars ranging in age from Ediacaran to Holocene). The results indicate that the frequency of predation traces increased notably by the Ordovician, and not in the mid-Paleozoic as suggested by multiple previous studies. Importantly, these estimates of predation intensity and global diversity of marine metazoans correlate throughout the Phanerozoic fossil record regardless of corrections and methods applied. This concordance may represent (i) an ecological signal: long-term coupling of diversity and predation; (ii) a diversity-driven diffusion of predatory behaviors: an increased probability of more complex predatory strategies to appear at higher diversity levels; or (iii) a spurious concordance in signal capture: an artifact where rare species and less-frequent (e.g., trace-producing) predatory behaviors are both more detectable at times when sampling improves. The coupling of predation and diversity records suggests that macroevolutionary and macroecological patterns share common causative mechanisms that may reflect either historical processes or sampling artifacts.
215 citations
TL;DR: In this article, the first 1.3 billion years of acritarch evolution were examined, and it was shown that protist morphologic evolution is broadly correlated with major environmental and biologic revolutions in Earth history such as late Neoproterozoic global glaciations, the first appearance of the Ediacaran metazoans and the Cambrian explosion.
113 citations
TL;DR: In this article, a hierarchical clustering approach was used to identify regions of the world with high exceptional preservation in the Cambrian-Ordovician interval (610 to 3.5 Ma).
92 citations
TL;DR: In this paper, the published version of an article published by the Geological Society of America is described. But the authors do not specify the authorship of any of the mentioned authors.
Abstract: This is the published version of an article published by the Geological Society of America.
84 citations
TL;DR: A review of the types of paleontological data used to infer predation in the marine fossil record, discuss strengths and limitations of the evidence used to recognize and evaluate predatory activity, assess the influence of environmental gradients on predation patterns, and review fossil evidence for predator behavior and prey defense as mentioned in this paper.
72 citations
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TL;DR: Preface to the Princeton Landmarks in Biology Edition vii Preface xi Symbols used xiii 1.
Abstract: Preface to the Princeton Landmarks in Biology Edition vii Preface xi Symbols Used xiii 1. The Importance of Islands 3 2. Area and Number of Speicies 8 3. Further Explanations of the Area-Diversity Pattern 19 4. The Strategy of Colonization 68 5. Invasibility and the Variable Niche 94 6. Stepping Stones and Biotic Exchange 123 7. Evolutionary Changes Following Colonization 145 8. Prospect 181 Glossary 185 References 193 Index 201
14,171 citations
01 Jan 1977
TL;DR: In the Hamadryas baboon, males are substantially larger than females, and a troop of baboons is subdivided into a number of ‘one-male groups’, consisting of one adult male and one or more females with their young.
Abstract: In the Hamadryas baboon, males are substantially larger than females. A troop of baboons is subdivided into a number of ‘one-male groups’, consisting of one adult male and one or more females with their young. The male prevents any of ‘his’ females from moving too far from him. Kummer (1971) performed the following experiment. Two males, A and B, previously unknown to each other, were placed in a large enclosure. Male A was free to move about the enclosure, but male B was shut in a small cage, from which he could observe A but not interfere. A female, unknown to both males, was then placed in the enclosure. Within 20 minutes male A had persuaded the female to accept his ownership. Male B was then released into the open enclosure. Instead of challenging male A , B avoided any contact, accepting A’s ownership.
2,364 citations
854 citations
TL;DR: The Washington Biological Society has just published a reprint at the price of one dollar of the Code ofworms, with the permission of the Commission.
Abstract: DURING this year I have so often been asked how this Code could be obtained that I hasten, with your permission, to announce that the Washington Biological Society has just published a reprint at the price of one dollar. Prof. C. W. Stiles, secretary to the Commission, says: “I would suggest that, if your colleagues wish copies, it would expedite matters to order a number at once”. The address of the Society is at the Bureau of Entomology, Washington, D.C., U.S.A.
525 citations
TL;DR: The phylogenetic distribution of regeneration is reviewed and how the origin, maintenance and loss of regeneration can each be driven by distinct factors are discussed.
Abstract: Regeneration, the replacement of lost body parts, is widespread yet highly variable among animals. Explaining this variation remains a major challenge in biology. Great strides have been made in understanding the phylogenetic distribution, ecological context and developmental basis of regeneration, and these new data are yielding novel insights into why and how regeneration evolves. Here, we review the phylogenetic distribution of regeneration and discuss how the origin, maintenance and loss of regeneration can each be driven by distinct factors. As the complexity of factors affecting regeneration evolution is increasingly appreciated, and as explicitly evolutionary studies of regeneration become more common, the coming years promise exciting progress in revealing the underlying mechanisms that have shaped animal regeneration.
416 citations