Nav: Home

Mean population size increases with diversity

January 28, 2003

A long-standing debate in ecology has been the effect of diversity on the temporal stability of biological systems.

Ecological theory predicts that the stability of populations should decline as community diversity increases, in part, because population size is assumed to decline with community richness.

In the February issue of Ecology Letters, Valone and Hoffman, using an 11-year dataset, have shown that the temporal stability of 17 species of annual plants in natural communities increases with diversity.

Population size also tends to increase with diversity, likely due to variation in local productivity.

Because community diversity, population size and the temporal stability of populations covaried positively, abiotic factors such as productivity may govern population stability to such an extent as to override potential effects of diversity.
-end-


Blackwell Publishing Ltd.

Related Diversity Articles:

Revealing Aspergillus diversity for industrial applications
In a Feb. 14, 2017 study published in Genome Biology, an international team report sequencing the genomes of 10 novel Aspergillus species, which were compared with the eight other sequenced Aspergillus species.
Important to maintain a diversity of habitats in the sea
Researchers from University of Gothenburg and the Swedish University of Agricultural Sciences (SLU) show that both species diversity and habitat diversity are critical to understand the functioning of ecosystems.
Discovering what shapes language diversity
A research team led by Colorado State University is the first to use a form of simulation modeling to study the processes that shape language diversity patterns.
Making the switch to polarization diversity
New silicon photonic chip that offers significant improvement to the optical switches used by fiber optic networks to be presented at OFC 2017 in Los Angeles.
Deciphering the emergence of neuronal diversity
Neuroscientists at UNIGE have analysed the diversity of inhibitory interneurons during the developmental period surrounding birth.
Epigenetic diversity in childhood cancer
Tumors of the elderly carry many DNA mutations that can influence disease course.
Diversity without limits
Now, researchers at Temple and Oakland universities have completed a new tree of prokaryotic life calibrated to time, assembled from 11,784 species of bacteria.
Threatened by diversity
Psychologist Brenda Major identifies what may be a key factor in many white Americans' support for Donald Trump.
Diversity as natural pesticide
Monoculture crops provide the nutrient levels insect pests crave, explains a study led by the University of California, Davis, in the journal Nature. Returning plant diversity to farmland could be a key step toward sustainable pest control.
A missing influence in keeping diversity within the academy?
A new study of science Ph.D.s who embarked on careers between 2004 and 2014 showed that while nearly two-thirds chose employment outside academic science, their reasons for doing so had little to do with the advice they received from faculty advisors, other scientific mentors, family, or even graduate school peers.

Related Diversity Reading:

Inclusion: Diversity, The New Workplace & The Will To Change
by Jennifer Brown (Author)

Embrace Diversity and Thrive As An Organization In the rapidly changing business landscape, harnessing the power of diversity and inclusion is essential for the very viability and sustainability of every organization. Talent who feel fully welcomed, valued, respected, and heard by their colleagues and their organizations will fuel this growth. We will only succeed in this transformation if those in leadership pivot from command and control management styles to reinvent how we look at people, every organization’s greatest asset. It’s also critical that we build systems that embrace... View Details


Readings for Diversity and Social Justice
by Maurianne Adams (Editor), Warren J. Blumenfeld (Editor), Heather W. Hackman (Editor), Madeline L. Peters (Editor), Ximena Zuniga (Editor)

For more than a decade, Readings for Diversity and Social Justice has been the trusted, leading anthology to cover the full range of social oppressions from a social justice standpoint. With full sections dedicated to racism, sexism, classism, heterosexism, and ableism, as well as transgender oppression, religious oppression, and adult and ageism, this bestselling text goes far beyond the range of traditional readers. New essay selections in each section of this third edition have been carefully chosen to keep topic coverage timely and readings accessible and engaging for... View Details


The Diversity and Inclusion Handbook
by Sondra Thiederman (Author)

Why should diversity and inclusion matter to you and your organization? The answer lies in that one thing we all strive for: SUCCESS. When team members of all backgrounds are included, valued, and respected for their uniqueness and what they have to contribute, they truly are more creative, more committed, more collaborative, and more motivated to participate to the fullness of their potential. They move from a collection of untapped individuals to a productive US focused on common goals and collective achievement. Helping you reach that level of success is what this book is all about! This... View Details


Diversity: The Invention of a Concept
by Peter Wood (Author)

Peter Wood traces the birth and evolution of diversity, illuminating how it came to sprawl across politics, law, education, business, entertainment, personal aspiration, religion and the arts as an encompassing claim about human identity. View Details


Diversity Consciousness: Opening Our Minds to People, Cultures, and Opportunities (4th Edition) (Student Success 2015 Copyright Series)
by Richard D. Bucher (Author)

For courses in Success/Orientation, Diversity (ie. Managing Diversity), Race and Ethnic Relations, Cultural Diversity in the Workplace, Multiculturalism and Inclusion (ie. leadership, group dynamics, teaching, social media/networking), Education, Nursing, Human Relations, Communications, Hospitality, Social Work/Family Therapy/Human Services, EMS and Fire Science, Counseling, Criminal Justice, Social Justice/Equity; also for teacher-training education... View Details


Diversity: The ASTD Trainer's Sourcebook
by Tina Rasmussen (Author)

Total diversity training from ASTD--in full-day, half-day, or one-hour sessions! A complete training kit developed by diversity expert Tina Rasmussen, The ASTD Trainer's Sourcebook: Diversity helps you firmly establish diversity's advantages for your company in fast, easy, flexible sessions. It helps you address such diversity basics as stereotyping--how we form perception--behavior fundamentals--managing diversity vs. traditional management--teams guidelines and communications--setting the tone for valuing diversity--and much more. Plus, you get everything you need to position diversity for... View Details


Cultural Diversity in Health and Illness (9th Edition)
by Rachel E. Spector (Author)

For courses in Community/Public Health Nursing, Transcultural Nursing, and CEUs.

 

Promotes an awareness of the dimensions and complexities involved in caring for people from diverse cultural backgrounds


The ninth edition of Cultural Diversity in Health and Wellness examines the differences existing within North America by probing the health care system, consumers, and examples of traditional health beliefs and practices among selected populations. An... View Details


The Diversity Bonus: How Great Teams Pay Off in the Knowledge Economy (Our Compelling Interests)
by Scott E. Page (Author), Earl Lewis (Editor), Earl Lewis (Editor), Nancy Cantor (Editor), Nancy Cantor (Editor), Katherine Phillips (Editor)

How businesses and other organizations can improve their performance by tapping the power of differences in how people think

What if workforce diversity is more than simply the right thing to do in order to make society more integrated and just? What if diversity can also improve the bottom line of businesses and other organizations facing complex challenges in the knowledge economy? It can. And The Diversity Bonus shows how and why.

Scott Page, a leading thinker, writer, and speaker whose ideas and advice are sought after by corporations, nonprofits,... View Details


Many: The Diversity of Life on Earth
by Nicola Davies (Author), Emily Sutton (Illustrator)

After magnifying the beauty of unseen organisms in Tiny Creatures, Nicola Davies and Emily Sutton turn their talents to the vast variety of life on Earth.

The more we study the world around us, the more living things we discover every day. The planet is full of millions of species of plants, birds, animals, and microbes, and every single one — including us — is part of a big, beautiful, complicated pattern. When humans interfere with parts of the pattern, by polluting the air and oceans, taking too much from the sea, and cutting down too many forests, animals and... View Details


Case Studies on Diversity and Social Justice Education
by Paul C. Gorski (Author), Seema G. Pothini (Author)

Case Studies on Diversity and Social Justice Education offers pre- and in-service educators an opportunity to analyze and reflect upon a variety of realistic case studies related to educational equity and social justice. Each case, written in an engaging, narrative style, presents a complex but common classroom scenario in which an inequity or injustice is in play. These cases allow educators to practice the process of considering a range of contextual factors, checking their own biases, and making immediate- and longer-term decisions about how to create and sustain equitable... View Details

Best Science Podcasts 2017

We have hand picked the best science podcasts for 2017. Sit back and enjoy new science podcasts updated daily from your favorite science news services and scientists.
Now Playing: TED Radio Hour

Going Undercover
Are deception and secrecy categorically wrong? Or can they be a necessary means to an end? This hour, TED speakers share stories of going undercover to explore unknown territory, and find the truth. Guests include poet and activist Theo E.J. Wilson, journalist Jamie Bartlett, counter-terrorism expert Mubin Shaikh, and educator Shabana Basij-Rasikh.
Now Playing: Science for the People

#452 Face Recognition and Identity
This week we deep dive into the science of how we recognize faces and why some of us are better -- or worse -- at this than others. We talk with Brad Duchaine, Professor of Psychology at Dartmouth College, about both super recognizers and face blindness. And we speak with Matteo Martini, Psychology Lecturer at the University of East London, about a study looking at twins who have difficulty telling which one of them a photo was of. Charity Links: Union of Concerned Scientists Evidence For Democracy Sense About Science American Association for the Advancement of Science Association for Women...