These phenotypes differ from the sex - biased infertility of Boule mutations
in all species examined, and the gametogenesis defects in Boule mutants are much less variable than those from either Vasa or Piwi mutants across species [21]--[23], [61], [78], [79].
We found that BOULE homologs are present in the genomes of representative species of each of the major lineages of metazoans and exhibit reproductive - specific expression
in all species examined, with a preponderance of male - biased expression.
Not exact matches
Since 1960 over two hundred books and countless reports have
examined either single congregations or their
species, and any new work such as mine gratefully follows the tracks that many sorts of explorers — consultants, management specialists, sociologists, psychologists, ethnographers, historians, and others — have already laid down.1 Prior to 1960 the investigation of the local church was more occasional, and except for a few books written to enliven parish programs2 and the pioneering sociology of H. Paul Douglass, 3 the analysis occurred primarily
in Europe.4
Two agencies are now involved
in updating oil - spill response plans for the Hudson River — and
examining potential effects on endangered
species.
Dr. Issa's team made their discovery after first
examining methylation patterns on DNA
in blood collected from individuals of different ages for each of three
species — mouse, monkey, and human.
Similarly, if you wanted to study environmental factors that influence sleep, you could
examine sleeping patterns of different
species in the wild and attempt to relate them to differences
in temperature, photoperiod, or other factors.
First, you could
examine humans and various
species of animals
in various social contexts.
The scientists compared the genetic sequence of five related strains of the
species, looking for orphan genes and
examining the life cycles of the various genes
in the fly genome.
His research group at Purdue
examines how ecosystems and plant communities,
in particular invasive
species, interact with changes
in the climate and atmosphere.
«The potential for the organisms to evolve
in response to a rapidly changing environment is often downplayed, even though very few studies have
examined the extent to which
species might adapt,» said Michael Logan, who recently received a Ph.D. from Dartmouth College and is now a postdoctoral fellow at the National Science Foundation.
«
In the Cretaceous amber we
examine, the ants and termites represent the earliest branches of each evolutionary tree, and the
species are wildly different from what their modern relatives look like today,» said co-author Phillip Barden, a recent graduate of the comparative biology doctoral program at the Museum's Richard Gilder Graduate School and a National Science Foundation Postdoctoral Fellow at Rutgers University.
As the researchers highlight
in their paper, the
species examined in the study are considered as weeds or pests
in many regions of the world.
Here the degree of aggregation
in the distribution of 1768 tree
species is
examined based on the average density of conspecific trees
in circular neighborhoods around each tree.
The authors
examined the effects of climate change on more than a thousand
species, including those that live on reefs and those that live
in open - water habitats.
«Previous studies of the impacts of drought on flowers and bees have looked at individual
species, often
in the laboratory, but we used an experiment with rain shelters to
examine the effects on real communities of plant
species living
in chalk grassland,» said Dr Ellen Fry from the University of Manchester, who set up the experiment.
A study by Isabel Schmidt, for instance, an ecologist at the University of Brasília,
examined what time of year different
species release their nearly microscopic seeds
in order to identify which
species are most impacted by harvesting.
Her current work
examines which bee
species are most vulnerable to human disturbance, and explores
in more detail whether both rare native bees and efficient pollination services can be restored by increasing the diversity of flowering plants.
In the lab, the team
examined the effect that high CO2 had on the behavior of two
species of water fleas, or pinhead - sized lake dwellers also known as Daphnia.
Leendertz and his team
examined samples from bones and carcasses from at least 20 different
species, collected
in the forest over almost 26 years.
Numerous fossilized
species were
examined in the study — from the earliest amphibians to the largest herbivorous dinosaurs and mammoths.
Because the future composition of shrub lands and the distribution of shrub
species in the Sierra Nevada is unknown, the researchers
examined stream flows under multiple possible scenarios of vegetation - type conversion
in two Sierra Nevada watersheds.
Doak and other scientists
examining how various
species age have discovered that
in some cases, they simply don't.
The researchers looked at past associations between the threat of extinction and the ecological traits like
species habitat zone, and
examined the same associations
in modern marine animals.
In the 8 January issue of Nature, a team of researchers concludes that if climate warming proceeds unchecked, 15 % to 37 % of the 1103 plant and animal
species they
examined will disappear by 2050.
In order to examine parasite infections also in the wolf's large prey species, the team collected internal organs of shot prey animals from hunting partie
In order to
examine parasite infections also
in the wolf's large prey species, the team collected internal organs of shot prey animals from hunting partie
in the wolf's large prey
species, the team collected internal organs of shot prey animals from hunting parties.
Almost 80 percent of the communities the team
examined showed substantial changes
in species composition, averaging about 10 percent change per decade — significantly higher than the rate of change predicted by models.
In 2008 and 2009, four species of coral guard - crabs known to protect coral from predator sea stars were studied in a series of experiments to examine the effectiveness of different species and various sizes of crabs at repelling multiple corallivore
In 2008 and 2009, four
species of coral guard - crabs known to protect coral from predator sea stars were studied
in a series of experiments to examine the effectiveness of different species and various sizes of crabs at repelling multiple corallivore
in a series of experiments to
examine the effectiveness of different
species and various sizes of crabs at repelling multiple corallivores.
Doctors currently gauge the antibiotic susceptibility of an infecting bacterial
species by
examining it
in isolation from other
species.
UChicago scientists
examined how
species (including these colorful marine bivalves) are lost
in mass extinctions compared to environmental changes between the tropics and the poles.
Study authors began re-thinking the alligator's evolutionary history after Whiting
examined an ancient alligator skull, originally thought to be an extinct
species, unearthed
in Marion County, Florida, and found it to be virtually identical to the iconic modern
species.
A team of evolutionary biologists, led by Keith Barker of the University of Minnesota,
examined two slowly evolving genes
in 144 bird
species among 44 families.
«
In natural hybrid zones, we find natural
species complexes and can
examine their genetic constitution,» says Stöck.
According to James Hanken, a biologist at Harvard University who heads a task force on declining amphibian populations, «at least one - third to one - half of all living
species of amphibian that have been
examined in this regard are on their way down, and out.»
Future spaceflight experiments that
examine a variety of other bacterial
species under differing growth conditions could help explain changes
in bacterial growth and virulence that could significantly affect people living
in space.
But for two
species of tardigrade whose genomes were
examined in the new study — Hypsibius dujardini and Ramazzottius varieornatus — a lack of water isn't fatal.
In this lucid road map for the nascent discipline of «de-extinction,» Shapiro, an evolutionary biologist,
examines not only how we can resurrect long - vanished
species but also when we can not or should not.
But to track snowfall
in higher elevations, the scientists
examined rings from subalpine larch, mountain hemlock and subalpine fir trees —
species whose growth is retarded by snowfall.
In 2004, Şekercioğlu published a study
examining the respective extinction risks of all bird
species throughout the world.
«Prior to the last Ice Age, there was a clear distinction
in the isotope values for all three
species; after this period, there is a clear overlap — and this suggests that the habitat of deer
species had shrunk or there was and overlap
in the diets of the different deer
species,» says Dorothée Drucker from the Biogeology department, who
examined the collagen.
In future studies, Datta and his team will
examine whether MS4A proteins act as a primordial odor receptor across
species.
He, along with fellow biomechanist Theodore Uyeno from Valdosta State University
in Georgia and their students, have independently
examined and described the loose skin of several of the 80
species of hagfish.
So if we reach our target, but you are interested
in supporting our research, PLEASE do not hesitate - the more funding we receive, the better job we can do to
examine as many candidate
species as possible.
In the 1920s, Beadle examined chromosomes in teosinte - corn hybrids and concluded that the two plants belonged to the same species, and even shared the same chromosomal order of gene
In the 1920s, Beadle
examined chromosomes
in teosinte - corn hybrids and concluded that the two plants belonged to the same species, and even shared the same chromosomal order of gene
in teosinte - corn hybrids and concluded that the two plants belonged to the same
species, and even shared the same chromosomal order of genes.
Many of the bat
species that occupy the
examined tree hollows during the day forage outside of the forest, for example
in pastures.
New research
examines how vertebrate
species in the eastern United States ranging from snakes to mammals to birds responded to climate change over the last 500,000 years.
In greenhouse experiments, the characteristics of the different plant
species are closely
examined.
The researchers now plan to
examine skeletal construction
in other
species of sponges.
Bishop and colleagues
examined locomotion
in 12
species of ground - dwelling birds, ranging
in body mass from 45g to 80 kg, as the birds moved at various speeds along enclosed racetracks while cameras recorded their movements and forceplates measured the forces their feet exerted upon the ground.
In this method, the sequence of a particular DNA section is used to clearly identify the
species to be
examined.
In future work, the researchers hope to
examine individual
species to determine which ones are most likely to struggle with the changing climate, and which areas of the country are likely to be most impacted by conflicts between humans and relocating animals.