Articles on animal migration published in BioScience
...cies (red-billed queleas and desert locusts): they argue that predicting the details of future ecological changes will call for greater understanding of the population dynamics and genetic composition of many organisms. Derek A. Roff and Daphne J. Fairbairn describe the genetic architecture of several com...Duke geologist's book assails unrealistic mathematical models
...now-collapsed Grand Banks cod fishery, the authors argue that Canadian scientists used unrealistic quantitative models of total allowable catch to determine harvesting levels. "According to these models, the Grand Banks should still be full of fish," they write. In its assessments of the unfinished Yucca...Scientists identify gene that may indicate predisposition to schizophrenia
...factors of schizophrenia. However, the researchers argue that sensitivity to environmental stressors varies widely among individuals, and "at least part of this variation may be genetic in origin and/or involve gene-environment factors," they write. Genetic variations that change the expression of CHI3L...The floral network -- what determines who pollinates whom
...n model and one of the neutral models. The authors argue that the neutral model, despite its appealing simplicity, can be discounted because it requires key assumptions regarding species abundances and random interaction that conflict with empirical observations of real communities. In contrast, the model ...Hofmeyr skull supports the 'Out of Africa' theory
..., other genetic studies (generally on nuclear DNA) argue against this African origin and exodus model. Instead, they suggest that archaic non-African groups, such as the Neandertals, made significant contributions to the genomes of modern humans in Eurasia. Until now, the lack of human fossils of appropria...European Union outpaces United States on chemical safety
...llars of costs and jobs lost. VanDeveer and Selin argue that most firms operate in multiple markets and pr... costs in the billions of dollars, while defenders argue that any increased costs incurred by manufacturers have previously been borne by consumers, the envi...Run amok enzyme causes same problems in both humans and fruit flies
...of colorectal cancers. Instead, Doe and colleagues argue that aurora-A and numb are tumor suppressants under normal conditions, and that a loss of aurora-A is what prompts overproduction of new neuroblasts and, thus, tumor development....Climate scientists to discuss the chilling consequences of nuclear war
...nd technology to India. Critics of the Senate plan argue that it would augment Indias nuclear arsenal and spark a regional arms race with Pakistan and China. "Not only do we have a higher probability of the use of nuclear weapons, they are much more likely to be used in the tropics, not in the high latit...Global warming of the future is projected by ancient carbon emissions
...obal warming and stands in contrast to critics who argue that the Earths temperature is insensitive to increases in carbon dioxide," said Pagani. "Not only did the Earth warm by at least 9F (5C), but it did so during a time when Earths average temperature was already 9F warmer than today." However, what ...Vanishing beetle horns have surprise function
...rns during development, Moczek and colleagues also argue the evolution of ornate horns in the adult beetles may actually have happened second -- that is, some time after their initial evolution as larval molting devices. In the Evolution report, the scientists examined literature describing the evolutio...Serengeti patrols cut poaching of buffalo, elephants, rhinos
...m the bushmeat and illegal trophy trades, and many argue that enforcement within protected areas is not sufficient to protect wildlife. Some say the $2 million spent annually in the Serengeti on patrols would be better spent on other preventive activities," says Ray Hilborn, University of Washington profes...News tips from the Journal of Neuroscience
...xplanation can be the best one. Jrntell and Ekerot argue that this is the case for the way in which cerebellar granule cells process somatosensory information. A granule cell has about four dendrites, each receiving input rom a single excitatory mossy fiber synapse, which in turn transmits signals from a ...Some key laboratory breast cancer cell lines are, indeed, good models for the 'real' disease
... of "real" tumors growing in a person's body. Some argue that cancer cells that learn to live in a flat lab dish cannot reflect cancer in the body, but others say that without any other way to study cancer, they seem to have performed well. Now, researchers at the Lombardi Comprehensive Cancer Center repo...News tips from the Journal of Neuroscience
... blocked formed normal-sized synapses. The results argue for a structural role of glutamate receptors in the protein protein interactions that lead to maturation and assembly of the fly neuromuscular junction. 2. Sensory Input and Olfactory Bulb Circuits Carolyn A. Marks, Kai Cheng, Diana M. Cummings, ...Europe should lead in promoting family planning in poor countries
...rope may be needed to take the lead. The authors argue that family planning should have a higher priority than investment in HIV prevention and treatment in most poor countries, because population growth poses a greater threat to development. While most poor countries already have population policies in ...Study suggests evolutionary link between diet, brain size in orangutans
...at somehow survived until fairly recently. Critics argue that it actually is a modern human afflicted with microcephaly, a genetic disorder characterized by an abnormally small head and an underdeveloped brain....Children's Hospital Boston presents at the 2006 American Academy of Pediatrics National Conference
...tation of laboratory tests for drugs of abuse, but argue that lab testing is not recommended as a way of screening for substance abuse. Presentation: Monday, Oct. 9, 6:45-7:45 AM (session #X308) Toilet training: Dealing with the toughest cases ("When stickers aren't enough") Children are being toile...Alaska study offers strategies to mitigate climate warming
...ical, cultural, and economic diversity the authors argue that humans will have more options for adapting to changes and that such diversity can act as a buffer from change. The third strategy focuses on reducing human and environmental vulnerability by effectively communicating to the public how the effec...Scientists debate the neurobiological underpinnings of amnesia
...e theory cannot easily be attacked because one can argue that a memory remains inaccessible until the appropriate retrieval cues are provided. Dr. Karim Nader, Professor of Psychology at McGill University (Canada), is the guest editor of the Learning & Memory special amnesia section. "This compilation ...Resistance to chemotherapy in lung cancer, optimizing flu vaccination strategies
... impact' as in Sub-Saharan Africa. The authors argue that there are crucial differences in the nature of the epidemics in sub-Saharan Africa and Asia, and these differences make it unlikely that the Asian epidemic will have a major development impact. Instead, they say, "its main impact will rather be...