Paul R. Ehrlich
Stanford University
H-index: 162
North America-United States
Description
Paul R. Ehrlich, With an exceptional h-index of 162 and a recent h-index of 73 (since 2020), a distinguished researcher at Stanford University, specializes in the field of Population biology, human ecology, evolution, coevolution, conservation biology.
His recent articles reflect a diverse array of research interests and contributions to the field:
Before They Vanish
Mutilation of the tree of life via mass extinction of animal genera
OPEN ACCESS EDITED BY
Using stable isotopes to measure the dietary responses of Costa Rican forest birds to agricultural countryside
Circling the drain: The extinction crisis and the future of humanity
Returning to “normal”? Evolutionary roots of the human prospect
CropPol: A dynamic, open and global database on crop pollination
Failure of the universities: The culture gap is now near lethal
Professor Information
University | Stanford University |
---|---|
Position | Professor of Biology |
Citations(all) | 127380 |
Citations(since 2020) | 31029 |
Cited By | 116883 |
hIndex(all) | 162 |
hIndex(since 2020) | 73 |
i10Index(all) | 608 |
i10Index(since 2020) | 241 |
University Profile Page | Stanford University |
Research & Interests List
Population biology
human ecology
evolution
coevolution
conservation biology
Top articles of Paul R. Ehrlich
Before They Vanish
Can we save threatened animals and ecosystems in the midst of a mass extinction? The answer is a resounding yes, and Before They Vanish shows us how. In their ambitious, impassioned, and wise new book, conservation scientists Paul R. Ehrlich, Gerardo Ceballos, and Rodolfo Dirzo urge us to shift our thinking rather than bow our heads, grieving over the losses that humanity faces. This comprehensive look at a crucial but often overlooked aspect of...
Authors
Paul R Ehrlich,Gerardo Ceballos,Lindsay Schakenbach Regele
Published Date
2024
Mutilation of the tree of life via mass extinction of animal genera
Mass extinctions during the past 500 million y rapidly removed branches from the phylogenetic tree of life and required millions of years for evolution to generate functional replacements for the extinct (EX) organisms. Here we show, by examining 5,400 vertebrate genera (excluding fishes) comprising 34,600 species, that 73 genera became EX since 1500 AD. Beyond any doubt, the human-driven sixth mass extinction is more severe than previously assessed and is rapidly accelerating. The current generic extinction rates are 35 times higher than expected background rates prevailing in the last million years under the absence of human impacts. The genera lost in the last five centuries would have taken some 18,000 y to vanish in the absence of human beings. Current generic extinction rates will likely greatly accelerate in the next few decades due to drivers accompanying the growth and consumption of the human …
Authors
Gerardo Ceballos,Paul R Ehrlich
Journal
Proceedings of the National Academy of Sciences
Published Date
2023/9/26
OPEN ACCESS EDITED BY
Objective: The present systematic review aimed to provide an overview of training load (TL), along with their responses, monitoring during training sessions in highly trained and elite adult women soccer players.Data source: Electronic databases searches (PubMed, Scopus, Web of Science and Ebsco) for relevant studies published in peer-reviewed journals were conducted, and eligibility criteria were based on the PICOS model in accordance with PRISMA guidelines.Study selection: Studies were considered as follows:(a) highly trained and elite adult (> 18 years) women's soccer players;(b) continuous (minimum1-week duration) TL monitoring in the context of the team routine;(c) TL collected from entire training session. Methodological qualitative assessments and risk of bias criteria were used for judging the studies.Data extraction: A total of 1,163 studies were identified, and 16 were included. The selected studies were fully screened to extract the population characteristics; the number of players; a type of study design; region where the study was performed; the main findings.Data synthesis: Accumulated external TL (ETL) during the pre-season was positively correlated to enhanced adaptations in intermittent exercise capacity. Daily ETL was negatively correlated to next-day self-reported fatigue and muscle soreness. Daily internal TL (ITL) was negatively correlated to postsession sleep duration and sleep efficiency. One study showed that higher accumulated player load and total distance were associated with injury.
Authors
José Luis Losada,Asier Gonzalez-Artetxe,Yousri Elghoul,Júlio A Costa,JA Costa,V Rago,P Brito,P Figueiredo,A Sousa,E Abade,J Brito
Journal
Community Series-Extremophiles: Microbial Genomics and Taxogenomics, Volume II
Published Date
2023/11/22
Using stable isotopes to measure the dietary responses of Costa Rican forest birds to agricultural countryside
How human modification of native habitats changes the feeding patterns and nutritional ecology of tropical birds is critical to conserving avian biodiversity, but tropical bird diets are laborious to investigate using the traditional methods of diet analysis. Stable isotope analysis provides a cost-effective and efficient proxy to identify general foraging patterns, especially when dietary shifts spanning multiple trophic levels have occurred due to ecosystem disturbance or transformation. To characterize the diets of forest bird species that persist in tropical agricultural countryside, we compared feather carbon (13C) and nitrogen (15N) isotope values of four species caught and radio-tracked in a 270 hectare forest reserve, smaller forest remnants (including mature forest, secondary forest, and riparian strips), and coffee plantations in mid-elevation (ca. 800-1400 m) southern Costa Rica. Bird habitat choice had a significant effect on diet composition as revealed by 13C and 15N values. Three of the four species studied showed evidence of significantly reduced consumption of invertebrates in coffee plantations, with the isotope values of two species (Tangara icterocephala and Turdus assimilis) indicating, by comparison, nearly a doubling of invertebrate consumption in forest remnants. Our results suggest that coffee plantations are deficient in invertebrates preferred by forest generalist birds that forage in both native forest remnants and coffee plantations. In this region, typical of mountainous American tropics, small forest remnants and a larger forest reserve provide critical dietary resources for native forest birds that utilize the agricultural countryside.
Authors
Çağan H Şekercioğlu,Melissa J Fullwood,Thure E Cerling,Federico Oviedo Brenes,Gretchen C Daily,Paul R Ehrlich,Page Chamberlain,Seth D Newsome
Journal
Frontiers in Ecology and Evolution
Published Date
2023/3/17
Circling the drain: The extinction crisis and the future of humanity
Humanity has triggered the sixth mass extinction episode since the beginning of the Phanerozoic. The complexity of this extinction crisis is centred on the intersection of two complex adaptive systems: human culture and ecosystem functioning, although the significance of this intersection is not properly appreciated. Human beings are part of biodiversity and elements in a global ecosystem. Civilization, and perhaps even the fate of our species, is utterly dependent on that ecosystem's proper functioning, which society is increasingly degrading. The crisis seems rooted in three factors. First, relatively few people globally are aware of its existence. Second, most people who are, and even many scientists, assume incorrectly that the problem is primarily one of the disappearance of species, when it is the existential threat of myriad population extinctions. Third, while concerned scientists know there are many individual …
Authors
Rodolfo Dirzo,Gerardo Ceballos,Paul R Ehrlich
Published Date
2022/8/15
Returning to “normal”? Evolutionary roots of the human prospect
Forum https://academic. oup. com/bioscienc e August 2022/Vol. 72 No. 8• BioScience 779 century to today, he would have a very different view of normal human behavior from that of an average American. We believe it is only by examining what is known of physically modern Homo sapiens’ entire 300,000-year history, including the ways in which human psychology has been shaped by both genetic and cultural evolution and their interactions, that the current threats to humanity can be understood and possibly averted. Indeed, if one expands the definition of human to include all our upright, toolimproving ancestors, human history must be considered to go back millions of years.Mismatch: Old genes and new perceptual needs Mismatches and culture gaps are foundational to civilization's grave present situation. Even the most casual consideration of human history brings to light dramatic mismatches (Ehrlich and …
Authors
Paul R Ehrlich,Anne H Ehrlich
Journal
BioScience
Published Date
2022/8
CropPol: A dynamic, open and global database on crop pollination
Seventy five percent of the world's food crops benefit from insect pollination. Hence, there has been increased interest in how global change drivers impact this critical ecosystem service. Because standardized data on crop pollination are rarely available, we are limited in our capacity to understand the variation in pollination benefits to crop yield, as well as to anticipate changes in this service, develop predictions, and inform management actions. Here, we present CropPol, a dynamic, open, and global database on crop pollination. It contains measurements recorded from 202 crop studies, covering 3,394 field observations, 2,552 yield measurements (i.e., berry mass, number of fruits, and fruit density [kg/ha], among others), and 47,752 insect records from 48 commercial crops distributed around the globe. CropPol comprises 32 of the 87 leading global crops and commodities that are pollinator dependent. Malus …
Authors
Alfonso Allen‐Perkins,Ainhoa Magrach,Matteo Dainese,Lucas A Garibaldi,David Kleijn,Romina Rader,James R Reilly,Rachael Winfree,Ola Lundin,Carley M McGrady,Claire Brittain,David J Biddinger,Derek R Artz,Elizabeth Elle,George Hoffman,James D Ellis,Jaret Daniels,Jason Gibbs,Joshua W Campbell,Julia Brokaw,Julianna K Wilson,Keith Mason,Kimiora L Ward,Knute B Gundersen,Kyle Bobiwash,Larry Gut,Logan M Rowe,Natalie K Boyle,Neal M Williams,Neelendra K Joshi,Nikki Rothwell,Robert L Gillespie,Rufus Isaacs,Shelby J Fleischer,Stephen S Peterson,Sujaya Rao,Theresa L Pitts‐Singer,Thijs Fijen,Virginie Boreux,Maj Rundlöf,Blandina Felipe Viana,Alexandra‐Maria Klein,Henrik G Smith,Riccardo Bommarco,Luísa G Carvalheiro,Taylor H Ricketts,Jaboury Ghazoul,Smitha Krishnan,Faye E Benjamin,João Loureiro,Sílvia Castro,Nigel E Raine,Gerard Arjen de Groot,Finbarr G Horgan,Juliana Hipólito,Guy Smagghe,Ivan Meeus,Maxime Eeraerts,Simon G Potts,Claire Kremen,Daniel García,Marcos Miñarro,David W Crowder,Gideon Pisanty,Yael Mandelik,Nicolas J Vereecken,Nicolas Leclercq,Timothy Weekers,Sandra AM Lindstrom,Dara A Stanley,Carlos Zaragoza‐Trello,Charlie C Nicholson,Jeroen Scheper,Carlos Rad,Evan AN Marks,Lucie Mota,Bryan Danforth,Mia Park,Antônio Diego M Bezerra,Breno M Freitas,Rachel E Mallinger,Fabiana Oliveira da Silva,Bryony Willcox,Davi L Ramos,Felipe D. da Silva e Silva,Amparo Lázaro,David Alomar,Miguel A González‐Estévez,Hisatomo Taki,Daniel P Cariveau,Michael PD Garratt,Diego N Nabaes Jodar,Rebecca IA Stewart,Daniel Ariza,Matti Pisman,Elinor M Lichtenberg,Christof Schüepp,Felix Herzog,Martin H Entling,Yoko L Dupont,Charles D Michener,Gretchen C Daily,Paul R Ehrlich,Katherine LW Burns,Montserrat Vilà,Andrew Robson,Brad Howlett,Leah Blechschmidt,Frank Jauker,Franziska Schwarzbach,Maike Nesper,Tim Diekötter,Volkmar Wolters,Helena Castro,Hugo Gaspar,Brian A Nault,Isabelle Badenhausser,Jessica D Petersen,Teja Tscharntke,Vincent Bretagnolle,D Susan Willis Chan,Natacha Chacoff,Georg KS Andersson,Shalene Jha,Jonathan F Colville,Ruan Veldtman,Jeferson Coutinho,Felix JJA Bianchi,Louis Sutter,Matthias Albrecht,Philippe Jeanneret,Yi Zou,Anne L Averill,Agustin Saez,Amber R Sciligo,Carlos H Vergara,Elias H Bloom,Elisabeth Oeller,Ernesto I Badano,Gregory M Loeb,Heather Grab,Johan Ekroos,Vesna Gagic,Saul A Cunningham,Jens Åström,Pablo Cavigliasso,Alejandro Trillo,Alice Classen,Alice L Mauchline,Ana Montero‐Castaño
Published Date
2022/3
Failure of the universities: The culture gap is now near lethal
“American collapse is ‘hypercollapse,’made of bots and ‘fake news’ and hacked elections, not just demagogues and speeches, which are radicalizing people already left ignorant by failing education institutions and civic norms”(1)A group of concerned climate scientists said in a recent wide-ranging peer-reviewed article:“In our view, the evidence from tipping points alone suggests that we are in a state of planetary emergency: both the risk and urgency of the situation are acute”(2). Despite this, the deep, decades-old, and frequently voiced concerns of the scientific community have been generally ignored (3-7).
Authors
Joan Diamond,Paul Ehrlich
Published Date
2022
Professor FAQs
What is Paul R. Ehrlich's h-index at Stanford University?
The h-index of Paul R. Ehrlich has been 73 since 2020 and 162 in total.
What are Paul R. Ehrlich's top articles?
The articles with the titles of
Before They Vanish
Mutilation of the tree of life via mass extinction of animal genera
OPEN ACCESS EDITED BY
Using stable isotopes to measure the dietary responses of Costa Rican forest birds to agricultural countryside
Circling the drain: The extinction crisis and the future of humanity
Returning to “normal”? Evolutionary roots of the human prospect
CropPol: A dynamic, open and global database on crop pollination
Failure of the universities: The culture gap is now near lethal
...
are the top articles of Paul R. Ehrlich at Stanford University.
What are Paul R. Ehrlich's research interests?
The research interests of Paul R. Ehrlich are: Population biology, human ecology, evolution, coevolution, conservation biology
What is Paul R. Ehrlich's total number of citations?
Paul R. Ehrlich has 127,380 citations in total.
What are the co-authors of Paul R. Ehrlich?
The co-authors of Paul R. Ehrlich are Gerardo Ceballos.