Coordination of cortex modifications in time, space, and under stress. [PDF]
Summary In roots, cell‐type‐specific differentiation enables specialized responses to environmental stress. The cortex, located between the vasculature and epidermis, is a key site for stress‐responsive modifications. The distinct specializations of the cortex are controlled by developmental, positional and environmental signals.
Kawa D, Schneider HM, Kajala K.
europepmc +2 more sources
Human-Induced Downsizing of Animal Communities Weakens Trait Matching Between Tropical Plants and Frugivores. [PDF]
We assess the impact of human‐induced ‘downsizing’ of animal communities on plant–frugivore trait matching—the alignment between fruit size and frugivore body mass—using a global dataset on plant and animal traits and 102 ecological networks across the tropics.
Guerra D +6 more
europepmc +2 more sources
Long-Term Sperm Storage in a Superfetatious Live-Bearing Fish (<i>Poeciliopsis gracilis</i>, Poeciliidae). [PDF]
Among the vertebrates, live‐bearing fishes of the family Poeciliidae are generally assumed to store sperm for extended periods of time, but the temporal dynamics of this process remain enigmatic for most species. With this study, we assess the maximum duration of sperm storage and usage in the superfetatious poeciliid Poeciliopsis gracilis by comparing
Ernst TR +6 more
europepmc +2 more sources
Modeling Cut Rose Yield Over an 18-Month Period After Compost Amendment Using Repeated Sigmoidal Gompertz Curve Fitting. [PDF]
ABSTRACT Understanding the growth, development, and production patterns of perennial crops is crucial for optimizing agricultural practices and enhancing crop productivity. Growth models are valuable tools in this regard, offering insights into how crops respond to different experimental treatments.
de Nijs EA +3 more
europepmc +2 more sources
How chronic anthropogenic noise can affect wildlife communities
Anthropogenic noise is a major pollutant in terrestrial and aquatic ecosystems. Since the industrial revolution, human activities have become increasingly noisy, leading to both acute and chronic disturbance of a wide variety of animals.
Annebelle C. M. Kok +13 more
doaj +1 more source
The Thomisidae and Philodromidae (Arachnida: Araneae) of the Galápagos Islands (Ecuador) [PDF]
Two new species of Thomisidae are described (Mecaphesa reddelli sp. nov. and Tmarus galapagosensis sp. nov.). Of a third species, Mecaphesa inclusa (Banks, 1902), three colour variations are described.
Baert, Léon
core +1 more source
Het Bijbelse scheppingsverhaal en de natuurwetenschap
Het is dit jaar precies een eeuw geleden, dat gezamenlijk door Charles Darwin en A. R. Wallace het begrip evolutie vaste voet kreeg in de moderne natuurwetenschappen.
A. A. Manten
doaj +1 more source
A new Oligocene site with terrestrial mammals and a selachian fauna from Minqar Tibaghbagh, the Western Desert of Egypt [PDF]
A new fossil site at Minqar Tibaghbagh, east of Siwa, in the Egyptian Western Desert is described. This represents the first place in Egypt outside the Fayum Depression yielding Paleogene, terrestrial mammals.
Hendrik Jan Van Vliet +5 more
doaj +1 more source
De natuurwetenschappen in het Sovjet-onderwijs
Array
A.J. Treffers
doaj +4 more sources
Normatiwiteit versus neutraliteit in die handelswetenskappe
Die sondeval van die mens het ’n tydperk van stryd ontsluit; dit is die stryd tussen die mag van die lig en die mag van die duisiternis wat hom telkens in nuwe en meer manifestasies openbaar het.
W. J. Venter
doaj +1 more source

