As the Nile perch is a skilful predator, with a large mouth and a voracious appetite, it has previously been regarded
by biologists as a classic example of an invasive species which can literally «eat up» the biodiversity of an ecosystem.
Not exact matches
According to a 1994 essay in the New York Review of Books
by John Maynard Smith, the dean of British neo-Darwinists, «the evolutionary
biologists with whom I have discussed his [Gould's] work tend to see him
as a man whose ideas are so confused
as to be hardly worth bothering with, but
as one who should not be publicly criticized because he is at least on our side against the creationists.
As an algae
biologist I was initially struck
by the cover graphic: a stained glass window made of diatoms, the tiny planktonic creatures whose exquisite outer shells are visible only through the electron microscope.
There have been many such changes, 8 so significant, in fact, that one wonders if Darwin must not be regarded, even
by the
biologists themselves, more
as a precursor of developments leading to present - day evolutionary thinking rather than
as a continuing historical source of our scientific understanding of man.
Both authors — Birch
as a
biologist and Cobb
as a theologian — are influenced
by the philosophy of Whitehead.
Only a few
biologists have actually lived with animals in their native habitats in order to study their behavior there, and the results are not always recognized
as «scientific», since they are not readily repeatable in the fashion required
by science.
Such instances, for which no convincing scientific explanations have been given, are cited
by some Christian
biologists as evidence of God's intervention in the process.
Some
biologists try to preserve a modified form of scriptural inerrancy
by quoting the verse «a day is
as a thousand years,» and then showing that after all Genesis agrees fairly well with evolution.
As a
biologist I have long been immensely impressed
by and beholden to Whitehead's philosophy of organism (Process and Reality), in that it seems to me that he is the first great philosopher who really took trouble to comprehend the biological developments of his time.
The Britannica tells us that «evolution is accepted
by all
biologists and natural selection is recognized
as its cause....
The process of synthesis
by which azoic elements have reached their present multiplicity and complexity is an evolution, the same process entirely
as the
biologist traces in the order of living things, and the synthetic chemical compound embodies in itself a complex relativity capable of being expressed in most exact laws, which reflect the evolutionary emergence of its substance
as much
as do the organs of an animal explained in terms of evolutionary development.
Anyone who suggests anything else is dismissed
by many leading
biologists, such
as Monod and Luria,
as a Lamarckist if not a Lysenkoist.
Evolution was not of major interest to most of these
biologists, but insofar
as they had a theory of it, it was a theory in terms of mutations of individual genes, carried
by individual organisms and submitted to natural selection.
3At present, for example, the well - entrenched neo-Darwinian hypothesis of «gradualism» (biological evolution occurs slowly, and more or less continuously
as the constant interplay of random variations and natural selection over vast periods of time) is confronted with a somewhat more radical and neo-Lamarckian theory of «punctuated equilibrium» favored
by Harvard
biologists Stephen Jay Gould and Peter Williamson, collaborated
by fossil discoveries of paleontologist and cultural anthropologist Richard Leakey in Africa.
John Cobb devoted much attention to this topic, and Charles Birch,
as an eminent
biologist and process thinker, has contributed much
by his writings and lectures to the wider acceptance of a process style of thought in the circles of the World Council of Churches.
But,
as Bohm points out, such a position can not stand up to critical analysis, for the molecules studied
by biologists in living organisms are constituted of electrons, protons and other such particles, from which it must follow that they too are capable of behaving in ways that can not be described in terms of mechanical concepts.
Whitehead in this respect
as in others provides a rigorous ontological grounding at the microcosmic level for the macrocosmic phenomena studied
by biologists.
There are important differences between the altruism observed
by zoologists, and caritas
as described
by St Thomas (Chapter 8), and a
biologist who ascribes the «emotion of forgiveness» to hyenas is betraying a conceptual hinterland quite unlike that of the Thomist (Chapter 4).
All
biologists agree that the behavior of organisms
as a whole is directive, in the sense that in the course of evolution some at least of it has been modified
by selection so
as to lead with greater or less certainty towards states which favour the survival and reproduction of the individual.
Much like a 2012 study published
by the National Center for Biotechnology Information, where educational
biologist Wendy Middlemiss and her team tracked the behavior and cortisol levels of 25 infants, ages 4 to 10 months,
as they attempted a five - day sleep training program that focused on the cry it out method.
Titled «The Ark and Beyond: The Evolution of Zoo and Aquarium Conservation,» the book — published in March 2018 — is written
by a collection of authors from zoos and aquariums, including Shedd Aquarium's Vice President of Conservation Research Dr. Chuck Knapp,
as well
as an impressive roster of university - based historians,
biologists, ethicists and social scientists.
Researchers have long explored this idea
by observing animals such
as chimpanzees, dolphins and elephants, but
biologist Natalia Borrego of South Africa's University of KwaZulu - Natal focuses on big cats.
Biologist José Luis Acuña of the University of Oviedo in Spain and his colleagues now suggest that jellyfishes are just
as effective at mealtime
as fishes when judged
by the right measures.
The reserve is one of the largest in the world and has been heralded
as a huge success, but this study, led
by conservation
biologist Leah Gerber of Arizona State University in Tempe, highlights one possible down - side to the reserve.
Thomas is a wildlife
biologist by training, but he now uses technology such
as satellite remote sensing and software applications such
as geographic information systems to model vector disease transmission.
What is important about our study is that it is a different methodology than what is used
by fisheries scientists for stock assessments, and therefore we serve
as an independent verification,» says Kent Carpenter, a marine
biologist at Old Dominion University in Norfolk, Virginia, and a co-author on the paper.
By the end I was hooked: I knew that I wanted to continue working
as a
biologist in the realm of international cooperation, contributing to nature conservation and the transfer of knowledge.
Using the fossil record
as a guide, a research team led
by Yale paleontologist and developmental
biologist Bhart - Anjan S. Bhullar and Harvard developmental
biologist Arhat Abzhanov conducted the first successful reversion of a bird's skull features.
Defined
as the harnessing of living processes to achieve healing and repair of damaged and diseased tissues
by Tim Hardingham, director of the UK Centre for Tissue Engineering, it is a field that requires collaborative research involving cell and molecular
biologists, chemical engineers, materials scientists, and surgeons.
As for Darwin, Wolfe presents the greatest biologist in history as a petty thief who stole credit for the theory of evolution by natural selection from Alfred Russell Wallace, who was (Wolfe alleges) screwed over by the British gentlemen's club conspirators who rigged the system to give Darwin credit for priorit
As for Darwin, Wolfe presents the greatest
biologist in history
as a petty thief who stole credit for the theory of evolution by natural selection from Alfred Russell Wallace, who was (Wolfe alleges) screwed over by the British gentlemen's club conspirators who rigged the system to give Darwin credit for priorit
as a petty thief who stole credit for the theory of evolution
by natural selection from Alfred Russell Wallace, who was (Wolfe alleges) screwed over
by the British gentlemen's club conspirators who rigged the system to give Darwin credit for priority.
The work done
by Bárbara is important,
as it provides a framework and a simulation tool that many ecologists and conservation
biologists will be able to use.»
But today's active mathematical
biologists must participate in — in addition to their traditional conferences — annual meetings of major biological professional societies, specialty conferences,
as well
as in focus groups (see Next Wave's article
by Fred Roberts, and specialty workshops.
Evolu - tionary
biologist Casey Dunn of Brown University in Providence, R.I., has frequently been frustrated
by what he calls «Jellies are scary» articles, which treat gelatinous animals
as a sign of unhealthy ecosystems.
Claire Kremen, a conservation
biologist at the University of California, Berkeley (and Harmon - Threatt's mentor), has shown that the diversity of pollinators drops with increasing distance from wild habitat,
as does the number of visits
by wild bees to flowering crops.
Lim's team sits in the NUS Mechanobiology Institute and the faculty of engineering, and
as he consults with
biologists and clinicians
as dictated
by the nature of his various projects, he stresses the need for engineers and physical scientists to partner with medical doctors early and regularly in the innovation process.
After 40 years of debate, evolutionary
biologists have used 10,000 twins and siblings in an attempt to discover whether it arose to give women a reproductive boost, or simply
as a
by - product of evolution of the male orgasm.
Delbrück concluded
by grudgingly accepting that the book «will have an inspiring influence
by acting
as a focus of attention for both physicists and
biologists.»
As a young
biologist studying how wounds heal, Min Zhao found that he could quicken cellular repairs
by exposing an injury to electricity.
The relationships between the various cancerous cells from a single person can be plotted out in much the same way
as evolutionary
biologists plot relationships between species:
by drawing phylogenetic trees, branching diagrams that trace «descendants» back to a common ancestor.
A new study led
by biologist R. Thomas Zoeller of the University of Massachusetts Amherst provides «the strongest evidence to date» that endocrine disrupting chemicals such
as polychlorinated biphenyls (PCB) found in flame retardant cloth, paint, adhesives and electrical transformers, can interfere with thyroid hormone action in pregnant women and may travel across the placenta to affect the fetus.
Now, an elaborate genetic study conducted
by researchers at Eawag and Bern University helps to explain the secret of its success: the stickleback can evidently adapt very rapidly to new habitats — so rapidly that, for evolutionary
biologists, it serves
as a model for the divergence of a single species into two or more distinct species.
This new PLOS Collection discusses major efforts
by evolutionary
biologists and paleontologists to understand sauropods
as living animals, and to explain their evolutionary success and uniquely gigantic body size.
The Well - Dressed Ape
by Hannah Holmes (Random House) Holmes ignores our self - congratulatory tendencies and gives a witty, detailed look at Homo sapiens through the eyes of an evolutionary
biologist, exposing us
as a thin - skinned, dull - toothed, small - clawed, and pitiable species.
By pairing a receptor that targets neurons with a molecule that degrades the main component of Alzheimer's plaques, the
biologists were able to substantially dissolve these plaques in mice brains and human brain tissue, offering a potential mechanism for treating the debilitating disease,
as well
as other conditions that involve either the brain or the eyes.
Also, most DIY
biologists are interested in building genetic circuits in bacteria or yeast, and they can generally do this using well - established techniques, such
as SLiCE (seamless ligation cloning extract), and with genes that have been synthesized
by commercial suppliers or that can be obtained from the iGEM registry.
Biologists also wanted the sterile coyotes to act
as «placeholders» that would occupy territory until they were kicked out
by a wolf.
Biologists studying great right whales (such
as Roger Payne in Argentine Patagonia) recognize individuals
by the unique patterns of whitish growths, called callosities, on the whales» heads.
Described
by a spokesperson from NASA's Astrobiology Institute
as «a revolution that will require its own revolution,» astrobiology draws on the expertise of astronomers and
biologists, physicists, chemists, and geologists to understand the development of life in the universe.
By fitting DNA into an engineering template, the messy field of biology emerges
as a complex but somewhat predictable system — one that synthetic
biologists have begun to maneuver in recent years.
Acquired - characteristic inheritance is known
as Lamarckism, after French
biologist Jean - Baptiste de Monet de Lamarck, who proposed the idea in 1809, and is today almost universally rejected in favor of evolution
by natural selection of random genetic mutations.