Results 31 to 40 of about 608,537 (428)

Optimal foraging strategies can be learned [PDF]

open access: yesNew J. Phys. 26 013010 (2024), 2023
The foraging behavior of animals is a paradigm of target search in nature. Understanding which foraging strategies are optimal and how animals learn them are central challenges in modeling animal foraging. While the question of optimality has wide-ranging implications across fields such as economy, physics, and ecology, the question of learnability is ...
arxiv   +1 more source

Using NDVI and EVI to Map Spatiotemporal Variation in the Biomass and Quality of Forage for Migratory Elk in the Greater Yellowstone Ecosystem

open access: yesRemote Sensing, 2016
The Normalized Difference Vegetation Index (NDVI) and the Enhanced Vegetation Index (EVI) have gained considerable attention in ecological research and management as proxies for landscape-scale vegetation quantity and quality.
Erica L. Garroutte   +2 more
semanticscholar   +1 more source

Viruses in sanctuary chimpanzees across Africa

open access: yesAmerican Journal of Primatology, Volume 85, Issue 1, January 2023., 2023
Abstract Infectious disease is a major concern for both wild and captive primate populations. Primate sanctuaries in Africa provide critical protection to thousands of wild‐born, orphan primates confiscated from the bushmeat and pet trades. However, uncertainty about the infectious agents these individuals potentially harbor has important implications ...
Emily Dunay   +9 more
wiley   +1 more source

Optimizing a jump-diffusion model of a starving forager [PDF]

open access: yesPhys. Rev. E 98, 052406 (2018), 2018
We analyze the movement of a starving forager on a one-dimensional periodic lattice, where each location contains one unit of food. As the forager lands on sites with food, it consumes the food, leaving the sites empty. If the forager lands consecutively on $s$ empty sites, then it will starve.
arxiv   +1 more source

Research on Re-Searching: Interrupted Foraging is Not Disrupted Foraging

open access: yesCognitive Research: Principles and Implications, 2023
AbstractIn classic visual search, observers typically search for the presence of a target in a scene or display. In foraging tasks, there may be multiple targets in the same display (or “patch”). Observers typically search for and collect these target items in one patch until they decide to leave that patch and move to the next one.
Injae Hong, Jeremy M. Wolfe
openaire   +3 more sources

Examination of soils under grasslands in the territory of Kosjeric municipality [PDF]

open access: yesZemljište i biljka, 2019
For successful plant production, optimum conditions for microbiological processes need to be ensured, since micro-organisms play a vital role in maintaining fertility of the soil.
Anđelković Snežana   +6 more
doaj  

Dry Forages: Process and techniques (OK-Net EcoFeed Practice Abstract) [PDF]

open access: yes, 2020
To obtain the best forage quality, cutting at the correct time is important, when cellulose and lignin content is not too high. During spring, cutting early is the best option to preserve forage quality; for grasses, the correct time is beginning of ...
Papi, Eugenio
core  

Does Greed Help a Forager Survive? [PDF]

open access: yesPhys. Rev. E 95, 062119 (2017), 2017
We investigate the role of greed on the lifetime of a random-walking forager on an initially resource-rich lattice. Whenever the forager lands on a food-containing site, all the food there is eaten and the forager can hop $\mathcal{S}$ more steps without food before starving.
arxiv   +1 more source

A universal equation to predict methane production of forage-fed cattle in Australia

open access: yes, 2016
The methods for estimating methane emissions from cattle as used in the Australian national inventory are based on older data that have now been superseded by a large amount of more recent data.
E. Charmley   +9 more
semanticscholar   +1 more source

Fishing amplifies forage fish population collapses

open access: yesProceedings of the National Academy of Sciences of the United States of America, 2015
Significance Forage fish provide substantial benefits to both humans and ocean food webs, but these benefits may be in conflict unless there are effective policies governing human activities, such as fishing.
T. Essington   +7 more
semanticscholar   +1 more source

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