Results 141 to 150 of about 529,762 (287)

Population Dynamics of Northern Pearl Dace Margariscus nachtriebi in Anthropogenically Altered Headwater Streams of the Nebraska Sandhills Ecoregion

open access: yesRiver Research and Applications, EarlyView.
ABSTRACT Empirical evidence of population demographic responses to environmental perturbations is a major knowledge gap for aquatic vertebrate populations. Extensive habitat alteration including channelization of headwater streams influences the habitat template on which small‐bodied fish are dependent to carry out distinct life stages and maintain or ...
Joseph Spooner, Jonathan Spurgeon
wiley   +1 more source

Assessing Spatial Riverbed Clogging and Its Dynamics at the Reach Scale: A Coupled Approach Combining Field Measurements and 1D Hydro‐Sedimentary Numerical Modeling

open access: yesRiver Research and Applications, EarlyView.
ABSTRACT Assessing spatial and temporal variability of clogging in gravel‐bed rivers is challenging because field methods typically rely on labor‐intensive measurements of fine‐sediment content, porosity, or hydraulic conductivity. Clogging is also highly dynamic, driven by hydro‐sedimentary conditions; yet few studies have examined it at large scales ...
D. Hernandez, B. Camenen, A. Bonnefoy
wiley   +1 more source

Aspirations and Apprehensions: Reconciling Youths' Desires and Concerns for a Sustainable Future

open access: yesSustainable Development, EarlyView.
ABSTRACT Although youth are widely acknowledged as change agents, their full participation is often limited by immediate concerns. This study examines how young people's aspirations shape their engagement with sustainability amid economic, environmental, and social uncertainties. Drawing on a large‐scale international survey (n: 15,076) and multinomial
Stephen Thomas Homer   +2 more
wiley   +1 more source

The Hidden Costs of Coffee Production in the Eastern African Value Chains

open access: yesSustainable Development, EarlyView.
ABSTRACT There is increasing recognition that significant hidden costs associated with agrifood systems are not reflected in market prices. Coffee is among the three most traded agricultural commodities in the world and supports the livelihoods of more than 30 million smallholder households.
Annet Adong   +3 more
wiley   +1 more source

Impact of warmer winters on the flowering display of Tokyo cherry (Cerasus ×yedoensis 'Somei-yoshino') at its southern range. [PDF]

open access: yesInt J Biometeorol
Katsuki T   +6 more
europepmc   +1 more source

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