Results 11 to 20 of about 9,101 (177)

Coordination of cortex modifications in time, space, and under stress. [PDF]

open access: yesNew Phytol
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]

open access: yesEcol Lett
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]

open access: yesEcol Evol
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]

open access: yesPlant Environ Interact
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

open access: yesFrontiers in Ecology and Evolution, 2023
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]

open access: yes, 2013
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

open access: yesKoers : Bulletin for Christian Scholarship, 1958
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]

open access: yesActa Palaeontologica Polonica, 2017
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

Normatiwiteit versus neutraliteit in die handelswetenskappe

open access: yesKoers : Bulletin for Christian Scholarship, 1974
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

Home - About - Disclaimer - Privacy