Results 101 to 110 of about 402,877 (246)

Interplanetary frontiers: terraforming from an invasion science perspective

Oikos, EarlyView.
The pursuit of a multi‐planetary existence represents one of humanity's greatest frontiers. If applied justly, it offers an opportunity to extend its civilization's lifespan amid escalating sustainability crises on Earth. One approach increasingly gaining traction is terraforming, a hitherto theoretical ecological and evolutionary experiment revolving ...
Teun Everts, Ronaldo Sousa, Phillip J. Haubrock   +2 more
wiley   +1 more source

Application of Hybrid Algorithm Based on Ant Colony Optimization and Sparrow Search in UAV Path Planning

International Journal of Computational Intelligence Systems
The Traveling Salesman Problem (TSP) is a classic problem in combinatorial optimization, aiming to find the shortest path that traverses all cities and eventually returns to the starting point.
Yangyang Tian, Jiaxiang Zhang, Qi Wang, Shanfeng Liu, Zhimin Guo, Huanlong Zhang   +5 more
doaj   +1 more source

Toward Optimization of AGV Path Planning: An RRT^*-ACO Algorithm

IEEE Access
Automated guided vehicle (AGV) smart parking provides a new solution to solve the problem of urban parking difficulties. In the AGV parking lot, whether the AGV running path is reasonable affects the transportation efficiency of the entire parking lot ...
Wenjuan Wang, Jiaye Li, Zongning Bai, Zhonghua Wei, Jingxuan Peng   +4 more
doaj   +1 more source

Greater future range expansions in alien than native ant species

Oikos, EarlyView.
There is growing concern that many species may not be able to track suitable conditions under climate change and suffer range contractions as a result. At the same time, alien species introduced to novel geographic ranges are often assumed to benefit from climate change.
Tongyi Liu, Sébastien Ollier, Cleo Bertelsmeier   +2 more
wiley   +1 more source

Coexisting ant species differ in ability to meet their intrinsic nutritional needs

Oikos, EarlyView.
Coexisting species are often assumed to reduce competition by foraging for foods that differ in nutrient composition, but few studies test whether field nutritional differences correspond to intrinsic differences in macronutrient selectivity. We compared field estimates of worker trophic position (tissue isotopes: δ15N) and worker tissue stoichiometry (
Hannah L. Riskas, Jonathan Z. Shik, Lily L. Leahy, Ian J. Wright, Heloise Gibb   +4 more
wiley   +1 more source

Research on vehicle routing problem based on improved ant colony algorithm[JP]

Journal of Hebei University of Science and Technology, 2022
In order to solve the problems of slow convergence and easiness to fall into local optimal solution in solving vehicle routing problem,an improved ant colony algorithm was proposed.Firstly,the saving matrix updating selection probability formula was ...
Ziyu LIU, Lixia ZHAO, Jianyue XUE, Junxia CHEN, Wei SONG   +4 more
doaj  

Near-Optimum Soft-Output Ant-Colony-Optimization Based Multiuser Detection for the DS-CDMA uplink

, 2008
In this contribution, a novel soft-output Ant Colony Optimization (ACO) based Multi-User Detector (MUD) is proposed for the synchronous Direct-Sequence Code-Division- Multiple-Access (DS-CDMA) uplink.
Yang, L.-L., R. Maunder, Xu, C., Yang, Lie-Liang, C. Xu, L.-L. Yang, L. Hanzo, Xu, Chong, Hanzo, Lajos, Hanzo, L., Maunder, R. G., Maunder, Robert G.   +11 more
core   +1 more source

Ethnobotanical and genetic assessments of Central American avocado landraces reveal novel sources of biodiversity and ancient migration patterns

PLANTS, PEOPLE, PLANET, EarlyView.
Avocados are a multibillion‐dollar global commodity, but their growing export market pressures local farmers to abandon local fruit tree diversity in favor of commercial cultivar production. Interviews with rural avocado farmers and households from the Southern Mexican Highlands, Pacific Coastal Honduras, and Western Nicaragua, as well as the genetic ...
Kevin Wann, Heather B. Thakar, Courtney A. Hofman, Hector Neff, Logan Kistler   +4 more
wiley   +1 more source

Mortality in an invasive ant does not scale linearly with fipronil exposure

Pest Management Science, EarlyView.
Increasing fipronil concentration did not linearly increase yellow crazy ant mortality when introduced via horizontal transfer; high doses may limit food sharing. Queen mortality was low, and surviving workers were averse to feeding. Abstract Background Controlling eusocial invasive and other pestiferous insects is difficult.
Peter Yeeles, Angela Strain, Lori Lach
wiley   +1 more source

The functional role of ants in no‐till cropping systems

Pest Management Science, EarlyView.
Ants provide valuable ecosystem services in tropical agriculture, but their roles in temperate row crops remain poorly understood. Conservation practices such as no‐till farming and cover cropping support ant communities that contribute to pest suppression, weed seed removal, and soil quality, which can increase crop productivity.
Adegboyega O. Fajemisin, Andrew V. Suarez, John F. Tooker   +2 more
wiley   +1 more source