Results 211 to 220 of about 33,080 (279)

From rhetoric to measurement: The economics of wetland conservation

open access: yesCanadian Journal of Agricultural Economics/Revue canadienne d'agroeconomie, Volume 74, Issue 1, Page 56-77, March 2026.
Abstract Wetland conservation continues to be a pressing issue as wetlands continue to be lost due to urban, industrial, and agricultural expansion. This paper synthesizes the current knowledge about wetland conservation economics in Canada, with a focus on prairie landscapes. We review the methods economists use to empirically measure the costs (i.e.,
Patrick Lloyd‐Smith   +2 more
wiley   +1 more source

Anaemic Streams: Iron and Essential Trace Metals Frequently Limit Primary Producer Biomass

open access: yesEcology Letters, Volume 29, Issue 3, March 2026.
Nutrient enrichment experiments in 41 streams across the eastern United States demonstrate that trace metals can limit the growth of primary producers. Trace metals are frequently co‐limiting with macronutrients and the availability of N and P in streams and watersheds are predictive of Fe and Zn limitation status.
David M. Costello   +10 more
wiley   +1 more source

A Conceptual Framework and Methods for Studying the Connectivity of Fishes

open access: yesFish and Fisheries, Volume 27, Issue 2, Page 342-369, March 2026.
ABSTRACT Connectivity is a multifaceted concept that has important implications for the management and conservation of marine and freshwater fishes. We developed a conceptual framework that encompasses multiple, interrelated categories of connectedness, including landscape (e.g., structural, functional) connectivity and ecological (e.g., trophic ...
Jordanna N. Bergman   +18 more
wiley   +1 more source

Mapping the Spatial Heterogeneity of Watershed Ecosystems and Water Quality in Rainforest Fjordlands. [PDF]

open access: yesEcosystems
Giesbrecht IJW   +7 more
europepmc   +1 more source

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