Results 81 to 90 of about 112,775 (298)

Direct and indirect effects of biological factors on extinction risk in fossil bivalves

, 2011
Biological factors, such as abundance and body size, may contribute directly to extinction risk and indirectly through their influence on other biological characteristics, such as geographic range size. Paleontological data can be used to explicitly test
Paul G. Harnik
core   +1 more source

Selective extinction against redundant species buffers functional diversity [PDF]

, 2020
The extinction of species can destabilize ecological processes. A way to assess the ecological consequences of species loss is by examining changes in functional diversity. The preservation of functional diversity depends on the range of ecological roles
Bacon, Christine D.,, Hendy, A., Catalina Pimiento, Bacon, Christine D., Zizka, A., Silvestro, Daniele,, Bacon, Christine D; https://orcid.org/, Silvestro, Daniele, Meyer, X., Bacon, Christine, Antonelli, Alexandre, Pimiento, Catalina, Pimiento, Catalina; https://orcid.org/, Meyer, Xavier, Pimiento, C., Antonelli, Alexandre,, Jaramillo, C., Zizka, Alexander, Hendy, Austin, Jaramillo, Carlos   +19 more
core   +1 more source

Double‐Transition‐Metal MXenes: Multimetallic 2D Platforms for Next‐Generation Biomedicine

Advanced Materials, EarlyView.
The present work explores recent progress in double‐transition‐metal MXenes and focuses on their potential as multifunctional biomedical nanoplatforms whose tunable optical, electronic, mechanical, and surface properties enable imaging, theranostics, antimicrobial activity, biosensing, tissue engineering, and drug delivery.
Parsa Namakiaraghi, Mohammad Mozafari, Masoud Soroush   +2 more
wiley   +1 more source

Designing Strong, Tough, Fire‐Retardant and Self‐Healing Elastomers with Phosphorus/Nitrogen‐ and Biphenyl‐Containing Segments

Advanced Materials, EarlyView.
By designing a P/N‐ and π–π interacting biphenyl‐containing diol as hard segments but side groups, a strong, tough, fire‐extinguishing and self‐healing elastomer is developed, demonstrating a break strain of ∼2500%, a toughness of 379 MJ/m3 and a tensile strength of 46 MPa, as well as a healing efficiency of 95% (tensile strength) and 99% (break strain)
Yijiao Xue, Shu Gong, Zhezhe Zhou, Zhewen Ma, Yanlong Luo, Mark Lynch, Jiabing Feng, Yan Zhang, Meng Zhang, Yonghong Zhou, Wenlong Cheng, Pingan Song   +11 more
wiley   +1 more source

Detection of extinction debt depends on scale and specialisation

, 2011
Many plants can persist in landscapes for a long time after focal habitats have disappeared or become fragmented, which might contribute to an extinction debt.
Vanhoenacker, Didrik,, Didrik Vanhoenacker, Cousins, Sara A. O.,, Sara A.O. Cousins   +3 more
core   +1 more source

Assessing uncertainty in sighting records: an example of the Barbary lion [PDF]

, 2015
As species become rare and approach extinction, purported sightings can be controversial, especially when scarce management resources are at stake. We consider the probability that each individual sighting of a series is valid.
Tamsin E. Lee, Reed, J. Michael, Hadi Al Hikmani, Angelici, Francesco M., Al Hikmani, Hadi, David L. Roberts, Lee, Tamsin E., Fellous, Amina, Elphick, Chris S., Francesco M. Angelici, J. Michael Reed, Amina Fellous, Roberts, David L., Michael Reed, J., Black, Simon A., Yamaguchi, Nobuyuki, Simon A. Black, Chris S. Elphick, Nobuyuki Yamaguchi   +18 more
core   +1 more source

Diet of two species of fish family Cichlidae (Astronotus ocellatus and Cichla pinima) introduced in the Paraguaçu River, Bahia

Biotemas, 2014
Analysis of the diet of introduced fish species allows us to understand their trophic position in the community, their level of predation, and possibly to identify the if and when they act as competitors and/or predators.
Luis Rogério Godinho dos Reis, Alexandre Clistenes de Alcântara Santos   +1 more
doaj  

Programmable Stepwise Heteroepitaxial Growth of Colloidal Crystals With Different Phases

Advanced Materials, EarlyView.
Stepwise heteroepitaxial growth is adapted to colloidal crystal engineering with DNA, enabling face‐centered cubic (fcc) facets to grow on body‐centered cubic (bcc) crystals with 110 facets. This approach tolerates large lattice mismatches, extending heteroepitaxy beyond the limits of conventional atomic systems.
Xiaowei Liu, Yuanwei Li, Ramin Yazdaanpanah, Ye Zhang, Rachel R. Chan, Xiaobing Hu, Yiming Yang, Vinayak P. Dravid, Koray Aydin, Chad A. Mirkin   +9 more
wiley   +1 more source

Assessing the effectiveness of conservation measures : resolving the "wicked" problem of the Steller sea lion

, 2010
“Wicked” problems are those that are complex and that change when solutions are applied. Many conflicts in conservation fall in to this category.
Boyd, Ian Lamont, I.L. Boyd
core   +1 more source

Evolution in a changing environment [PDF]

, 2012
We propose a simple model for genetic adaptation to a changing environment, describing a fitness landscape characterized by two maxima. One is associated with "specialist" individuals that are adapted to the environment; this maximum moves over time as ...
Christiansen, Morten H., Nick Chater, Baronchelli, Andrea, Chater, N., Romualdo Pastor-Satorras, Morten H Christiansen, Baronchelli Andrea, Pastor-Satorras, R., Chater, Nick, Christiansen, M.H., Pastor-Satorras Romualdo, Andrea Baronchelli, Morten H. Christiansen, Baronchelli, A., Christiansen Morten H., Chater Nick, Pastor Satorras, Romualdo, Christiansen, M. H.   +17 more
core   +1 more source