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Population Dynamics Current Events | Population Dynamics News
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Floating lovers count too — in the health of eagle populations
In a paper from the November issue of The American Naturalist, Vincenzo Penteriani, FermÃn Otalora, and Miguel Ferrer, researchers at the Estación Biológica de Doñana (Consejo Superior de Investigaciones CientÃficas, Spain), focus on the forgotten and invisible side of animal populations-the floaters. Floaters are dispersed individuals who... view more... (2006-11-02)
The Mediterranean connection: ecological effects of El Ni'±o in the Northern hemisphere
The North Atlantic Oscillation (NAO) and the El Ni'±o/Southern Oscillation (ENSO) are being increasingly acknowledged as major climatic sources of ecological variability. However, studies linking ecological processes to those oscillations have been conducted in geographic regions close to their centers of action, so their effects outside these... view more... (2004-06-10)
Environmental effects on genetic adaptation and population dynamics
It seems intuitive that genes are affected by selection as a result of environment. In fact there is little evidence thus far that such genetic effects impact year-to-year population dynamics. view more (2006-04-25)
Local interventions have little effect on metapopulation stability
Stabilizing fluctuations in the number of individuals in fragmented populations of threatened species is an important concern in conservation biology. view more (2007-02-21)
Studies of small water fleas help ecologists understand population dynamics
A study of populations of tiny water fleas is helping ecologists to understand population dynamics, which may lead to predictions about the ecological consequences of environmental change. view more (2008-10-31)
The Value of Variation: Ecologists Consider the Causes and Consequences
Consider the case of the three-spine stickleback. These tiny fish that thrive in oceans and in fresh water might appear to be the same, yet ecologists are finding that they are actually a diverse collection of very specialized individuals. view more (2009-07-23)
Medicalising sex damages relationships
Overly medical approaches to sex ignore the social and interpersonal dynamics of relationships, argue researchers in this week's BMJ. The medicalisation of sex has resulted in surgery and drugs being used to enhance sexual pleasure, write Graham Hart and Kaye Wellings. Viagra (sildenafil citrate) has become the world's most popular drug ever, and... view more... (2002-04-10)
New discovery: Molecular variation in one gene affects the growth of natural populations
For the first time, ecologists have been able to show that molecular variation in one gene may affect the growth of a population in its natural habitat. view more (2006-04-26)
Study finds key distinction between outbreaks that die out and epidemics
In an important study forthcoming in the March 2006 issue of the American Naturalist, biologists from Yale University, University of Florida, and Dartmouth University explore the dynamics of pathogen survival and shed new light on a longstanding mystery: why some infectious diseases are limited to small outbreaks and others become full-blown... view more... (2006-02-22)
Microtubule protein interactions visualized en masse
In a new study published online in the open access journal PLoS Biology, Philipp Niethammer, Eric Karsenti, and colleagues investigate the regulation of microtubule dynamics via application of their new method, called visual immunoprecipitation (VIP), which enables simultaneous visualization of multiple protein interactions in cell extracts. view more (2007-01-16)
Scientists find formula to uncover our planet's past and help predict its future
Studies of climate evolution and the ecology of past-times are often hampered by lost information - lost variables needed to complete the picture have been long thought untraceable but scientists have created a formula which will fill in the gaps of our knowledge and will help predict the future. view more (2009-05-27)
Predators drive the lemming cycle in Greenland
A recent study conducted in eastern Greenland and published in the October 31 issue of the Science magazine provides new understanding of the dynamics of arctic lemming populations. Olivier Gilg and Ilkka Hanski from the University of Helsinki, Finland, and Beno'®t Sittler from the University of Freiburg, Germany, combined long-term field... view more... (2003-10-29)
Telling axons where to go - and grow
In a recent study, Dr. Ingolf Bach and colleagues from the University of Massachusetts Medical School, Worcester and the University of Hamburg (Germany) describe a novel role for the ubiquitin/proteosome protein degradation pathway in the regulation of local actin dynamics in neurons. view more (2005-10-03)
Spread of endogenous retrovirus K is similar in the DNA of humans and rhesus monkeys
According to paleontologic and molecular studies, the chimpanzee (Pan troglodytes) is the closer relative to the humans (Homo sapiens) and that both lineages had a common ancestor at 5 to 7 million years ago. view more (2007-10-10)
New study explains why hotter is better for insects
Organisms have been able to adapt to environments ranging from cold polar oceans to hot thermal vents. However, University of Washington researchers have discovered a limit to the powerful forces of natural selection, at least when it comes to the adaptation of insects to cold temperatures. view more (2006-10-03)
European Seal Plague May Threaten Population Survival
2002 Outbreak May Claim 10,000 Harbour Seals view more (2002-10-30)
Habitat loss and reserve network selection
What is the minimum combination of areas needed to protect at least one population of every species in a region? - This is a problem commonly addressed when aiming at cost-effective reserve networks. However, because the stress on reserve cost, the properties of the reserve-network for species persistence are often overlooked, typically resulting... view more... (2003-07-02)
Quantum mechanics predicts unusual lattice dynamics of vanadium metal under high pressure
A Swedish research team of Dr. Wei Luo & Professor Rajeev Ahuja and US team of Dr. Y. Ding & Prof. H.K. Mao have used theoretical calculations to understand a totally new type of high-pressure structural phase transition in Vanadium. view more (2007-10-12)
Predicting boom and bust ecologies
The natural world behaves a lot like the stock market, with periods of relative stability interspersed with dramatic swings in population size and competition between individuals and species. view more (2008-10-30)
DNA analysis reveals rapid population shift among Pleistocene cave bears
Studying DNA obtained from teeth of ancient cave bears, researchers have been able to identify a shift in a particular population of the bears inhabiting a European valley in the late Pleistocene era. view more (2007-02-20)
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