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Evaluation of the Surrogator® system to increase pheasant and quail abundance

open access: yesWildlife Society Bulletin, 2016
Captive‐rearing and release programs have been used to augment populations of ring‐necked pheasant (Phasianus colchicus), northern bobwhite (Colinus virginianus), and other gamebirds to provide additional hunting opportunities. However, many question the
Eric T. Thacker   +4 more
doaj   +1 more source

Natural Resources and Global Misallocation [PDF]

open access: yesAmerican Economic Journal: Macroeconomics, 2015
Are production factors allocated efficiently across countries? To differentiate misallocation from factor intensity differences, we provide a new methodology to estimate output shares of natural resources based solely on current rent flows data. With this methodology, we construct a new dataset of estimates for the output shares of natural resources ...
Alexander Monge-Naranjo   +2 more
openaire   +8 more sources

Woody plant encroachment pervasive across three socially and ecologically diverse ecoregions

open access: yesEcology and Society, 2022
Woody plant encroachment in grasslands represents one of the greatest challenges for global biodiversity conservation. Furthermore, this is a social-ecological problem, where human activity and behavior have resulted in significant changes in ecological ...
David W. Londe   +3 more
doaj   +1 more source

Optimal Exploitation of a General Renewable Natural Resource under State and Delay Constraints

open access: yesMathematics, 2020
In this work, we study an optimization problem arising in the management of a natural resource over an infinite time horizon. The resource is assumed to evolve according to a logistic stochastic differential equation.
M’hamed Gaïgi   +2 more
doaj   +1 more source

Numerical simulation of the impact of an integrated renovation project on the Maowei Sea hydrodynamic environment

open access: yesScientific Reports, 2021
Integrated renovation projects are important for marine ecological environment protection. Three-dimensional hydrodynamics and water quality models are developed for the Maowei Sea to assess the hydrodynamic environment base on the MIKE3 software with ...
Cui Wang   +3 more
doaj   +1 more source

Semiarid bunchgrasses accumulate molybdenum on alkaline copper mine tailings: assessing phytostabilization in the greenhouse

open access: yesSN Applied Sciences, 2021
Article Highlights Compost increased P. spicata and F. campestris root and shoot biomass on alkaline copper mine tailings. Ash increased tailings pH and bunchgrass shoot uptake of molybdenum. P. spicata and F.
Paul M. Antonelli   +3 more
doaj   +1 more source

Natural resources, democracy and corruption [PDF]

open access: yesEuropean Economic Review, 2010
We study how natural resources can feed corruption and how this effect depends on the quality of the democratic institutions. Our game-theoretic model predicts that resource rents lead to an increase in corruption if the quality of the democratic institutions is relatively poor, but not otherwise.
Roland Hodler   +2 more
openaire   +8 more sources

STUDY ON MORPHO-PHYSICAL FLORAL CHARACTERS OF MANGO (MANGIFERA INDICA) VARIETIES IN SARLAHI, NEPAL [PDF]

open access: yesScience Heritage Journal
Floral characteristics of 27 mango varieties were studied during February-May, 2024. Distinct variations were found among the studied varieties.
Kiran Thapa   +6 more
doaj   +1 more source

High nitrous oxide emissions from temporary flooded depressions within croplands

open access: yesCommunications Earth & Environment, 2023
Nitrous oxide is an important greenhouse gas and emissions from managed ecosystems are directly correlated to anthropogenic nitrogen input. Here we have measured nitrous oxide emissions from flooded depressions within croplands and from incubated soil ...
By Bo Elberling   +9 more
doaj   +1 more source

Volatility and the natural resource curse [PDF]

open access: yesOxford Economic Papers, 2009
We provide cross-country evidence that rejects the traditional interpretation of the natural resource curse. First, growth depends negatively on volatility of unanticipated output growth independent of initial income, investment, human capital, trade openness, natural resource dependence, and population growth.
van der Ploeg, F., Poelhekke, S.
openaire   +10 more sources

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