Results 71 to 80 of about 72,458 (351)

Classifying avian drinking behaviour: ecological insights and implications in a changing world

open access: yesBiological Reviews, EarlyView.
ABSTRACT Water is a fundamental currency of life, and its availability significantly influences animal behaviour, physiology and distributions. However, our knowledge around the dependence on water for drinking and the direct and indirect mechanisms driving related behaviours remains partial in the context of changing climates. Here, we review patterns
Shannon R. Conradie, Marc T. Freeman
wiley   +1 more source

Integrating biochar, compost, and chemical fertilizer improves maize yield and soil health in the guinea savannah: evidence from two cropping seasons in Northern Ghana

open access: yesScientific Reports
Maize production by smallholder farmers in sub-Saharan Africa is constrained by declining soil fertility due to low input use and poor nutrient management.
Abdul-Latif Abdul-Aziz   +2 more
doaj   +1 more source

The Yield and Pest Trade-Off: An Analysis of Insecticide Spray Frequency on the Performance of a Genetically Modified Cowpea in Ghana

open access: yesAgronomy
A field trial was conducted at two locations in northern Ghana over two successive years to determine the optimal insecticide application timings for mitigating non-lepidopteran pest infestations in a cowpea (Vigna unguiculata (L.) Walp.) variety ...
Jerry A. Nboyine   +9 more
doaj   +1 more source

Factors that Determine Aflatoxin Infestation in Ghana: Application of Cragg's Double Hurdle Model

open access: yesSustainable Futures, 2020
In our application of Cragg's (double hurdle) model, we explicitly address functional form misspecification by first using nonparametric regression to identify the functional relationship between aflatoxin infestation and a vector of agronomic and ...
Prince Maxwell Etwire, Edward Martey
doaj   +1 more source

Farmers’ response to COVID-19 disruptions: The case of cropland allocation decision

open access: yesSustainable Futures, 2022
This study provides new evidence on the determining factors of cropland allocation decisions within the context of the COVID-19 pandemic by using the seemingly unrelated regression (SUR) model on 309 farm households.
Edward Martey   +2 more
doaj   +1 more source

Emissions mitigation opportunities for savanna countries from early dry season fire management

open access: yesNature Communications, 2018
Savanna fires produce significant emissions globally, but if managed effectively could provide an important mitigation opportunity, particularly in African least developed countries.
G. Lipsett-Moore, N. Wolff, E. Game
semanticscholar   +1 more source

The evidence base for ranger patrol effectiveness in conservation and how to improve it

open access: yesBiological Reviews, EarlyView.
ABSTRACT Ranger patrols are a cornerstone of wildlife protection efforts around the world and occur across all ecological governance systems. Evidence that patrols reduce threats to wildlife and enable their recovery has not been systematically examined previously.
Trina Rytwinski   +19 more
wiley   +1 more source

Spatial patterning among savanna trees in high-resolution, spatially extensive data

open access: yesProceedings of the National Academy of Sciences of the United States of America, 2019
Significance Understanding how environmental variation shapes vegetation distributions is crucial for predicting biosphere responses to global change.
A. Staver   +4 more
semanticscholar   +1 more source

Dynamics of biotic resistance to plant invasions

open access: yesBiological Reviews, EarlyView.
ABSTRACT Biotic resistance, the reduction in invasion success caused by native communities, plays an important role in the long‐term dynamics of biological invasions. A large body of empirical research on biotic resistance has accumulated since the last comprehensive review on the subject 20 years ago, enabling us to achieve a refined understanding of ...
Christine S. Sheppard   +13 more
wiley   +1 more source

Inheritance of Early Maturity in Some Cowpea (Vigna unguiculata (L.) Walp.) Genotypes under Rain Fed Conditions in Northern Ghana

open access: yesAdvances in Agriculture, 2018
A field experiment was conducted at Savanna Agricultural Research Institute in 2015 cropping season to examine the inheritance of early maturity among an extra-early maturing landrace Sanzi and a medium maturing variety Padi-Tuya and their progenies. The
Emmanuel Yaw Owusu   +5 more
doaj   +1 more source

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