Results 61 to 70 of about 134,054 (334)
Farmers’ response to COVID-19 disruptions: The case of cropland allocation decision
Sustainable 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
Impact of forest management regimes on ligneous regeneration in the Sudanian savanna of Burkina Faso [PDF]
, 2007 Annual early fire, selective tree cutting and grazing exclusion are currently used to manage the State forests of the Sudanian savanna of Burkina Faso, West Africa. Such prescriptions, however, are not based on experimental evidence.
Zida, Didier
core
Spatial metrics in fire ecology: seeking consistency amidst complexity
Biological Reviews, EarlyView.ABSTRACT Technological advances, including remote sensing, have led to a proliferation of metrics used in ecological studies to examine spatial patterns of fire regimes and their ecological effects. Researchers can use many different metrics to analyse spatial variation in both fire events and resulting fire regimes, including fire size, shape ...
Alexander R. Carey +5 more
wiley +1 more source
AgronomyA 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
Seedling stage drought screening of candidate cowpea (Vigna unguiculata (L) Walp.) genotypes
Cogent Food & Agriculture, 2023 Prolonged drought of cowpea at the seedling stage can affect survival and productivity. This study sought to evaluate cowpea genotypes for their resistance to seedling-stage drought stress. Fifteen cowpea genotypes were used in this study. The experiment
Theophilus Kwabla Tengey +9 more
doaj +1 more source
A biomass burning source of C1- C4alkyl nitrates [PDF]
, 2002 We report the first observations of the emission of five C1-C4alkyl nitrates (methyl-, ethyl-, n-propyl-, i-propyl-, and 2-butyl nitrate) from savanna burning.
Atlas, E +6 more
core +1 more source
The scaling of seed‐dispersal specialization in interaction networks across levels of organization
Ecography, EarlyView.Natural ecosystems are characterized by a specialization pattern where few species are common while many others are rare. In ecological networks involving biotic interactions, specialization operates as a continuum at individual, species, and community levels. Theory predicts that ecological and evolutionary factors can primarily explain specialization.
Gabriel M. Moulatlet +3 more
wiley +1 more source
An annotated checklist of Wisconsin sap and short-winged flower beetles (Coleoptera: Nitidulidae, Kateretidae) [PDF]
, 2006 A survey of Wisconsin Nitidulidae and Kateretidae yielded 78 species through analysis of literature records, museum and private collections, and three years of field research (2000-2002).
Price, Michelle B., Young, Daniel K.
core +1 more source
Alpha, beta and gamma diversity in relatively natural, mixed and transformed landscape scenarios
Ecography, EarlyView.Biodiversity losses and biotic homogenisation associated with human‐induced land‐cover changes are key issues for ecology. However, the effects of human‐caused land‐use changes on biodiversity change at the landscape scale are not well understood. Combining the PREDICTS global biodiversity database with MODIS satellite‐based land cover from 2001 to ...
Shuyu Deng +2 more
wiley +1 more source
International Journal of Agronomy, 2017 The experiment was carried out to assess the suitability of different mulch materials in enhancing the growth and fruit yield of okro. Ten okro genotypes were evaluated in a split plot design with 3 replications. Three treatments of mulch (black plastic,
Richard Yaw Agyare +5 more
doaj +1 more source