Results 111 to 120 of about 4,274,126 (325)

Optimal search strategies for hidden targets

, 2005
What is the fastest way of finding a randomly hidden target? This question of general relevance is of vital importance for foraging animals. Experimental observations reveal that the search behaviour of foragers is generally intermittent: active search ...
C. W. Gardiner, D. W. Stephens, J. P. Anderson, J. W. Bell, L. D. Kramer, L. D. Stone, M. Cody, M. Coppey, M. Levandowsky, M. Moreau, M. W. Pienkowski, O. Bénichou, P-H. Suet, P. Knoppien, R. Voituriez, R. B. Huey, R. B. Huey, S. Redner, S. A. Rice, W. J. O’Brien, W. J. O’Brien   +20 more
core   +1 more source

Using optimal foraging theory to infer how groups make collective decisions.

Trends in Ecology & Evolution, 2022
Grace H. Davis, M. Crofoot, D. Farine
semanticscholar   +1 more source

Optimal Foraging by Birds

The American Biology Teacher, 2015
Optimal foraging theory attempts to explain the foraging patterns observed in animals, including their choice of particular food items and foraging locations. We describe three experiments designed to test hypotheses about food choice and foraging habitat preference using bird feeders.
Keith W. Pecor, Ellen C. Lake, Matthew A. Wund   +2 more
openaire   +1 more source

Endothermy, neuron counts, and other issues: Further remarks on neurocognitive evolution in fossil vertebrates

The Anatomical Record, EarlyView.
Abstract Last year, we challenged the view that large‐bodied theropod dinosaurs such as Tyrannosaurus rex resembled primates in cognition and behavior, a proposition made by Herculano‐Houzel in 2023. More recently, Jensen et al. have criticized our work on this topic, raising methodological and conceptual issues.
Kai R. Caspar, Cristián Gutiérrez‐Ibáñez, Hady George, Thomas R. Holtz Jr., Darren Naish, Grant R. Hurlburt   +5 more
wiley   +1 more source

Shifting Deer Hunting Strategies as a Result of Environmental Changes along the Little and Great Miami Rivers of Southwest Ohio and Southeast Indiana [PDF]

, 2020
This study analyzes white-tailed deer (Odocoileus virginianus) remains from five Fort Ancient archaeological sites along the Little and Great Miami Rivers of southwest Ohio and southeast Indiana to compare how the combination of varying ecologies ...
Baker, Sydney
core  

Effects of Replacing Alfalfa Hay With Barley Silage in High‐Concentrate Diets: Chewing Behavior, Ruminal Fermentation, Total‐Tract Digestibility, and Milk Production of Dairy Cows in Mid‐Lactation Phase

Animal Research and One Health, EarlyView.
We assessed lactation productivity in dairy cows when replacing alfalfa hay with barley silage. A 50% replacement increased feed intake, whereas total replacement improved nutrient conversion to milk. Barley silage can effectively replace alfalfa hay, enhancing sustainability and resilience in dairy production amid forage quality constraints and market
M. R. Naji‐Zavareh, F. Hashemzadeh, M. Alikhani, M. Khorvash, A. Kahyani, F. Ahmadi   +5 more
wiley   +1 more source

Overview of Encapsulated Lysine and Methionine and Their Impacts on Transition Cow Performance and Health

Animal Research and One Health, EarlyView.
The transition period in dairy cows, spanning 3 weeks before and after calving, is a critical phase characterized by increased nutrient demands, reduced dry matter intake (DMI), and elevated risk of metabolic disorders such as negative nutrient balance (NNB), lipolysis, proteolysis, and oxidative stress.
Mohammed S. Seleem, Samy A. Elsaadawy, Zhaohai Wu, Lu Ma, Todd R. Callaway, Dengpan Bu   +5 more
wiley   +1 more source

Diving seabirds share foraging space and time within and among species

Ecosphere, 2010
Ecological theory predicts that animals with similar foraging strategies should not be able to co‐exist without segregating either in space, time or diet. In communities, intra‐specific competition is thought to be more intense than the competition among
Juan F. Masello, Roger Mundry, Maud Poisbleau, Laurent Demongin, Christian C. Voigt, Martin Wikelski, Petra Quillfeldt   +6 more
doaj   +1 more source

Use of Restricted Nursing and a Bovine Appeasing Substance on the Welfare, Growth Performance, and Response to Vaccination of Beef Calves at Weaning

Animal Research and One Health, EarlyView.
The effects of restricted nursing (RN) and the administration of a bovine appeasing substance (BAS) on days −8 and 0 in relation to weaning were evaluated. Both strategies were effective in improving the growth performance of beef calves. Regarding welfare, BAS ‐especially on day 0‐ was more effective than RN.
Denise E. Mussalafo, Marcelo Vedovatto, Aylpy R. D. Santos, Dalton M. Oliveira, Fabiana A. M. Sterza, Mariana Santos, Helena B. C. R. Batista, Jaíne G. Garcia, Andréa R. D. L. Souza   +8 more
wiley   +1 more source

Effects of Lycium barbarum Residue Substituting Dietary Maize on Fecal Microbiota and Growth Performance of Crossbred Simmental Cattle

Animal Research and One Health, EarlyView.
The bioactive substances we extracted from Lycium barbarum residue (LBR) have a typical polysaccharide structure. When 1.80% LBR was used to replace maize in the diet, the average daily gain of rossbred Simmental was significantly increased, and anti‐inflammatory ability was improved. In addition, LBR improved the fecal microbial composition, increased
Kun Cai, Mingtan Li, Lihang He, Ning Ma, Haoyu Liu, Chi Xu, Xianhua Wu, Zeguang Xing, Qian Xing, Yuankai Qu, Xi Ma   +10 more
wiley   +1 more source