Benefits for dominant red deer hinds under a competitive feeding system: food access behavior, diet and nutrient selection.

Social dominance is widely known to facilitate access to food resources in many animal species such as deer. However, research has paid little attention to dominance in ad libitum access to food because it was thought not to result in any benefit for dominant individuals. In this study we assessed i...

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Autores principales:	Francisco Ceacero, Andrés J García, Tomás Landete-Castillejos, Jitka Bartošová, Ludek Bartoš, Laureano Gallego
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2012
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/6d953a67aa97401a86dbab41d7af8d1d
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spelling	oai:doaj.org-article:6d953a67aa97401a86dbab41d7af8d1d2021-11-18T07:26:03ZBenefits for dominant red deer hinds under a competitive feeding system: food access behavior, diet and nutrient selection.1932-620310.1371/journal.pone.0032780https://doaj.org/article/6d953a67aa97401a86dbab41d7af8d1d2012-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/22403707/?tool=EBIhttps://doaj.org/toc/1932-6203Social dominance is widely known to facilitate access to food resources in many animal species such as deer. However, research has paid little attention to dominance in ad libitum access to food because it was thought not to result in any benefit for dominant individuals. In this study we assessed if, even under ad libitum conditions, social rank may allow dominant hinds to consume the preferred components of food. Forty-four red deer hinds (Cervus elaphus) were allowed to consume ad libitum meal consisting of pellets of sunflower, lucerne and orange, and seeds of cereals, corn, cotton, and carob tree. The meal was placed only in one feeder, which reduced accessibility to a few individuals simultaneously. During seven days, feeding behavior (order of access, time to first feeding bout, total time spent feeding, and time per feeding bout) were assessed during the first hour. The relative abundance of each meal component was assessed at times 0, 1 and 5 h, as well as its nutritional composition. Social rank was positively related to the amount of time spent feeding during the 1(st) h (P = 0.048). Selection indices were positively correlated with energy (P = 0.018 during the 1(st) h and P = 0.047 from 1(st) to 5(th)) and fat (only during the 1(st) h; P = 0.036), but also negatively with certain minerals. Thus, dominant hinds could select high energy meal components for longer time under an ad libitum but restricted food access setting. Selection indices showed a higher selectivity when food availability was higher (1(st) hour respect to 1(st) to 5(th)). Finally, high and low ranking hinds had longer time per feeding bout than mid ones (P = 0.011), suggesting complex behavioral feeding tactics of low ranking social ungulates.Francisco CeaceroAndrés J GarcíaTomás Landete-CastillejosJitka BartošováLudek BartošLaureano GallegoPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 7, Iss 3, p e32780 (2012)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Francisco Ceacero Andrés J García Tomás Landete-Castillejos Jitka Bartošová Ludek Bartoš Laureano Gallego Benefits for dominant red deer hinds under a competitive feeding system: food access behavior, diet and nutrient selection.
description	Social dominance is widely known to facilitate access to food resources in many animal species such as deer. However, research has paid little attention to dominance in ad libitum access to food because it was thought not to result in any benefit for dominant individuals. In this study we assessed if, even under ad libitum conditions, social rank may allow dominant hinds to consume the preferred components of food. Forty-four red deer hinds (Cervus elaphus) were allowed to consume ad libitum meal consisting of pellets of sunflower, lucerne and orange, and seeds of cereals, corn, cotton, and carob tree. The meal was placed only in one feeder, which reduced accessibility to a few individuals simultaneously. During seven days, feeding behavior (order of access, time to first feeding bout, total time spent feeding, and time per feeding bout) were assessed during the first hour. The relative abundance of each meal component was assessed at times 0, 1 and 5 h, as well as its nutritional composition. Social rank was positively related to the amount of time spent feeding during the 1(st) h (P = 0.048). Selection indices were positively correlated with energy (P = 0.018 during the 1(st) h and P = 0.047 from 1(st) to 5(th)) and fat (only during the 1(st) h; P = 0.036), but also negatively with certain minerals. Thus, dominant hinds could select high energy meal components for longer time under an ad libitum but restricted food access setting. Selection indices showed a higher selectivity when food availability was higher (1(st) hour respect to 1(st) to 5(th)). Finally, high and low ranking hinds had longer time per feeding bout than mid ones (P = 0.011), suggesting complex behavioral feeding tactics of low ranking social ungulates.
format	article
author	Francisco Ceacero Andrés J García Tomás Landete-Castillejos Jitka Bartošová Ludek Bartoš Laureano Gallego
author_facet	Francisco Ceacero Andrés J García Tomás Landete-Castillejos Jitka Bartošová Ludek Bartoš Laureano Gallego
author_sort	Francisco Ceacero
title	Benefits for dominant red deer hinds under a competitive feeding system: food access behavior, diet and nutrient selection.
title_short	Benefits for dominant red deer hinds under a competitive feeding system: food access behavior, diet and nutrient selection.
title_full	Benefits for dominant red deer hinds under a competitive feeding system: food access behavior, diet and nutrient selection.
title_fullStr	Benefits for dominant red deer hinds under a competitive feeding system: food access behavior, diet and nutrient selection.
title_full_unstemmed	Benefits for dominant red deer hinds under a competitive feeding system: food access behavior, diet and nutrient selection.
title_sort	benefits for dominant red deer hinds under a competitive feeding system: food access behavior, diet and nutrient selection.
publisher	Public Library of Science (PLoS)
publishDate	2012
url	https://doaj.org/article/6d953a67aa97401a86dbab41d7af8d1d
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Benefits for dominant red deer hinds under a competitive feeding system: food access behavior, diet and nutrient selection.

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