Results 21 to 30 of about 355,002 (288)

Coexistence and invasibility in a two-species competition model with habitat-preference [PDF]

J. Theor. Bio. 265 (2010) 609-617, 2010
The outcome of competition among species is influenced by the spatial distribution of species and effects such as demographic stochasticity, immigration fluxes, and the existence of preferred habitats. We introduce an individual-based model describing the competition of two species and incorporating all the above ingredients.
arxiv   +1 more source

Empowerment of youth through strengthening their land rights knowledge and research capacity: evidence from Eastern and Southern Africa

African Journal on Land Policy and Geospatial Sciences, 2020
Africa is a continent of youth. However, its high rates of youth unemployment linked to high levels of landlessness suggest a close correlation with youth poverty and access to land.
Uchendu Eugene Chigbu, Agatha Wanyonyi, Danilo Antonio   +2 more
doaj   +1 more source

Impact of typical land use type on the stability and content of carbon and nitrogen of soil aggregates in western Hubei

Ecosphere, 2023
In order to investigate the characteristics of soil structural stability and the factors influencing it under typical land use types in the karst region of western Hubei, soil samples were collected from five land use types (natural mixed forest [NF ...
Ting Luo, Lu Xia, Dong Xia, Wenjing Liu, Yakun Xu, Zhiteng He, Wennian Xu   +6 more
doaj   +1 more source

Movement bias in asymmetric landscapes and its impact on population distribution and critical habitat size [PDF]

arXiv, 2023
Ecologists have long investigated how demographic and movement parameters determine the spatial distribution and critical habitat size of a population. However, most models oversimplify movement behavior, neglecting how landscape heterogeneity influences individual movement. We relax this assumption and introduce a reaction-advection-diffusion equation
arxiv  

Airfoil Lift Coefficient Optimization Using Genetic Algorithm and IGP Parameterization: Volume 1

Aerospace, 2023
The objective of this study is to develop a genetic algorithm that uses the IGP parameterization to increase the lift coefficient (CL) of three airfoils to be used on wings of unmanned aerial vehicles (UAVs).
María Elena Tejeda-del-Cueto, Manuel Alberto Flores-Alfaro, Miguel Toledo-Velázquez, Lorena del Carmen Santos-Cortes, José Hernández-Hernández, Marco Osvaldo Vigueras-Zúñiga   +5 more
doaj   +1 more source

Lessson-Learned: Participatory Action Research Project with Upland Smallholder Farmers Practicing Cropland Agroforestry System in Wonogiri Regency to Support National Food Security

Habitat, 2021
Indonesia government pays little attention to address impending threat of the existences of upland smallholder farmers due to insufficient farm income. This condition poses an imminent threat to national food security.
Rudy Nur Hidayah, Wiyono Wiyono, Oka Karyanto   +2 more
doaj   +1 more source

Dairy Farmers Perception on Cooperatives in East Java, Indonesia

Habitat, 2021
Although past studies have shown that cooperatives can improve the welfare of rural communities. However, many farmers did not aware about the cooperative advantages.
Hery Toiba, Rachman Hartono, Dwi Retnoningsih, Moh. Shadiqur Rahman   +3 more
doaj   +1 more source

Slow, stealthy and steady – capacity development to address land tenure issues in development programmes: experiences of the IFAD/GLTN TSLI-ESA Project

African Journal on Land Policy and Geospatial Sciences, 2019
Land and natural resource tenure security is a central yet often neglected area for economic development and poverty reduction in the developing world. Land is fundamental to the lives of poor rural people.
Agatha Achieng Wanyonyi, Solomon Mkumbwa, Harold Liversage, Omar Sylla   +3 more
doaj   +2 more sources

Factors Affecting The Food Security of The Bajo Community Households In West Muna District During The Covid-19 Pandemic

Habitat, 2021
This study aims to determine the factors that affect the household food security of the Bajo community in Napano Kusambi Sub District. The research was conducted in Napano Kusambi Sub District, West Muna District, the selection of the research location ...
Muhammad Aswar Limi, Munirwan Zani, Selvi Selvi   +2 more
doaj   +1 more source

Mesoscopic structure and social aspects of human mobility [PDF]

PLoS ONE 7(5): e37676, 2012, 2012
The individual movements of large numbers of people are important in many contexts, from urban planning to disease spreading. Datasets that capture human mobility are now available and many interesting features have been discovered, including the ultra-slow spatial growth of individual mobility.
arxiv   +1 more source