Results 91 to 100 of about 53,492 (258)

Pour une histoire spatiale des varadouros dans le Territoire fédéral de l’Acre

open access: yesBrésil(s)
We analyze the rubber trails in the Federal Territory of Acre, demonstrating that latex extraction left significant traces of the movement of people and goods.
Cliverson Pessoa, Eduardo Góes Neves
doaj   +1 more source

Sustainable Productivity Growth in Agriculture: The Role of Shifts in R&D Investments and Technology

open access: yesApplied Economic Perspectives and Policy, EarlyView.
ABSTRACT The objective of the paper is to evaluate the long‐term prospects of sustainable productivity growth linked to plausible assumptions on public agricultural R&D investments as the key productivity driver. Second, it investigates the role of changing R&D focus from yield maximization to input saving technologies (fertilizers and pesticides). The
Zuzana Smeets Křístková   +4 more
wiley   +1 more source

Historical ecosystem models can serve as a baseline for indicator-based assessment: the North Sea

open access: yesFrontiers in Marine Science
Knowledge of past ecosystems is essential to understand how marine ecosystems have changed under human pressure. This understanding is critical for the effective management of marine ecosystems today. However, there has been limited effort to investigate
İsmet Saygu   +7 more
doaj   +1 more source

Coping With Production Risk: Effects of Sown Plant Diversity on the Attractiveness of Crop Insurance in Grasslands

open access: yesApplied Economic Perspectives and Policy, EarlyView.
ABSTRACT Increased frequency of extreme weather events, particularly droughts, threatens grassland farming by destabilizing yields and farms' economic viability. We examine, theoretically and through numerical simulations, how sown plant diversity (natural insurance) influences the attractiveness of indemnity and drought index insurance (formal ...
Nicolas Alou   +3 more
wiley   +1 more source

Could There Have Been 1.5 Million Bighorn Sheep in 1850? Most Likely Not!

open access: yesWild
There is little question that the distribution and numbers of large mammals have been altered by human activities. In North America, native ungulates have declined substantially since the mid-1800s. There is no baseline, however, against which to measure
Vernon C. Bleich, Stephen A. Holl
doaj   +1 more source

On the Economics of US Agricultural Policy

open access: yesApplied Economic Perspectives and Policy, EarlyView.
ABSTRACT This paper presents an economic analysis of US agricultural policy, building on a modified version of Gardner's efficient redistribution. We argue that agricultural policy is motivated as an attempt to implement an efficient redistribution scheme that redistributes income toward farmers who, as a group, have been adversely affected by ...
Jean‐Paul Chavas
wiley   +1 more source

Use of Ecological Networks to Reveal Interspecific Fungal Interactions from 150 Years of Foray Records

open access: yesMycobiology
Fungal forays have been conducted for more than 150 years, providing valuable, but underutilized, sets of records for studies of fungal ecology. Although foray records have been used to study species composition and phenological change, their potential ...
Zhiru Guoli, Nathan Edward Charles Smith
doaj   +1 more source

Hemp Cultivation and Crop Diversification: Implications for Ecosystem Services in Kentucky

open access: yesApplied Economic Perspectives and Policy, EarlyView.
ABSTRACT This study examines the ecosystem benefits of expanding hemp cultivation by assessing its impact on crop diversity. Using scenario‐based simulations and fixed‐effect panel regressions with county‐level data in Kentucky, we find that increased hemp acreage tends to enhance crop diversity, improving water quality and bird diversity.
Yunsun Park   +4 more
wiley   +1 more source

Consumer Preferences for Craft Beer: The Interplay of Localness and Advertising Language

open access: yesAgribusiness, EarlyView.
ABSTRACT This study explores the influence of the language of the label, origin of production, and origin of brewing ingredients on Croatian consumers' preferences and willingness to pay for organic craft beer. Employing an online survey and a choice experiment among 223 Croatian alcohol consumers, we find that while there's a willingness to pay a ...
Marija Cerjak   +2 more
wiley   +1 more source

Insect Decline in the Anthropocene: Historical Parallels and Emerging Monitoring Tools

open access: yesInsects
Insects, the most diverse group of animals on Earth, have historically evolved under strong environmental selective pressures, particularly fluctuations in atmospheric oxygen and temperature.
Dani Sukkar   +2 more
doaj   +1 more source

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