收藏 | 投稿 | 手机打开

Optimal diet strategy of a large-bodied psittacine: food resource abundance and nutritional content enable facultative dietary specialization by the Military Macaw

Sylvia Margarita de la Parra-Martínez  Luis Guillermo Mu?oz-Lacy  Alejandro Salinas-Melgoza  Katherine Renton  
【摘要】:Background:Dietary specialization should arise when there is a relatively high abundance of a particular resource,where animals may select food items to obtain an optimal diet that maximizes energy intake.Large-bodied psittacines frequently exhibit a narrow dietary niche with specific habitat use,but few studies have determined whether psittacines select food resources,and how this influences habitat use.Methods:We established fruiting phenology transects to evaluate food resource availability for the large-bodied Military Macaw(Ara militaris) in semi-deciduous,deciduous,and pine-oak forest at two sites along the coast of Jalisco,during the dry season when macaws are nesting.We also determined Military Macaw diet by observations of foraging macaws along transect routes,and conducted bromatological analysis of the nutritional content of the most consumed resource.Results:Military Macaws used six plant species as food items during the dry season,and had a narrow dietary niche(Levins' B=0.28),with 56% of foraging macaws consuming the seeds of Hura polyandra.No food resources were recorded in pine-oak forest during the dry season,with food resources and foraging by macaws concentrated in tropical deciduous and semi-deciduous forest,where H.polyandra was the most abundant fruiting tree species.When considering the proportional availability of food resources,we determined a broad Hurlbert dietary niche breadth of H=0.67,indicating that Military Macaws consumed food resources according to their availability.Furthermore,the seeds of H.polyandra were an important source of protein,carbohydrates,minerals and moisture,and the hard fruitcasing means that these seeds are exclusively available for macaws.Conclusions:By concentrating their diet on the most abundant resources,Military Macaws may increase foraging efficiency in the dry season.The high nutrient content also means that concentrating the diet on seeds of H.polyandra may be an optimal foraging strategy for Military Macaws to meet their energy requirements during the breeding season.

中国期刊全文数据库 前19条
1 Qing Cai;Lise Van der Haegen;;What can atypical language hemispheric specialization tell us about cognitive functions?[J];Neuroscience Bulletin;2015年02期
2 Variluska Fragoso;Youngjoo Oh;Sang-Gyu Kim;Klaus Gase;Ian Thomas Baldwin;;Functional specialization of Nicotiana attenuata phytochromes in leaf development and flowering time[J];Journal of Integrative Plant Biology;2017年03期
3 Fasheng Zou;Qiang Zhang;Min Zhang;Myung-Bok Lee;Xincai Wang;Yuening Gong;Changteng Yang;;Temporal patterns of three sympatric pheasant species in the Nanling Mountains: N-mixture modeling applied to detect abundance[J];Avian Research;2019年04期
4 刘虎仙;胡大海;贾赤宇;付小兵;;Progress of cellular dedifferentiation research[J];Chinese Journal of Traumatology;2006年05期
5 ;Review:Actin-based dynamics during spermatogenesis and its significance[J];Journal of Zhejiang University(Science B:An International Biomedicine & Biotechnology Journal);2007年07期
6 ;Study on abundance variation of pteropods in the East China Sea[J];Acta Oceanologica Sinica;2006年01期
7 CHEN Xinwei;CAI Lizhe;ZHOU Xiping;RAO Yiyong;;Geographical Variation in Oligochaete Density and Biomass in Subtropical Mangrove Wetlands of China[J];Journal of Ocean University of China;2017年05期
8 ;Quantitative relationship between flagellate abundance and suspended particle density in Huanghai Sea and East China Sea in summer[J];Acta Oceanologica Sinica;2006年02期
9 石福臣,祖元刚,颜廷芬;Effect of Closing Hillsides Afforestation on Population Diversity[J];Journal of Forestry Research;1998年01期
10 Gopikrishna Mantha;Abdulmohsin A.Al-Sofyani;Al-Aidaroos Ali M;Michael P Crosby;;Zooneuston and zooplankton abundance and diversity in relation to spatial and nycthemeral variations in the Gulf of Aqaba and northern Red Sea[J];Acta Oceanologica Sinica;2019年12期
11 尹洁慧;张光涛;赵增霞;王世伟;万艾勇;;Annual variation in Calanus sinicus abundance and population structure in the northern boundary area of the Yellow Sea Cold Water Mass[J];Chinese Journal of Oceanology and Limnology;2013年06期
12 ;Distribution of meiofaunal abundance in relation to environmental factors in Beibu Gulf,South China Sea[J];Acta Oceanologica Sinica;2012年06期
13 Lijun Chen;Zufei Shu;Wutao Yao;Yong Ma;Wenhong Xiao;Xiaoqun Huang;;Combined effects of habitat and interspec ificinteraction define co-occurrence patterns of sympatric Galliformes[J];Avian Research;2019年03期
14 XIA Shaoxia;LIU Yu;CHEN Bin;JIA Yifei;ZHANG Huan;LIU Guanhua;YU Xiubo;;Effect of Water Level Fluctuations on Wintering Goose Abundance in Poyang Lake Wetlands of China[J];Chinese Geographical Science;2017年02期
16 BEGUM Moni;JEWEL Md.Abu Sayed;HAQUE Md.Ayenuddin;KHATUN Mst.Samsad;;Hydrobiological variables as a regulatory factor on the abundance of heterotrophic flagellates in an urban pond[J];Journal of Oceanology and Limnology;2019年03期
17 LIN Junhui;HUANG Yaqin;ARBI Ucu Yanu;LIN Heshan;AZKAB Muhammad Husni;WANG Jianjun;HE Xuebao;MOU Jianfeng;LIU Kun;ZHANG Shuyi;;An ecological survey of the abundance and diversity of benthic macrofauna in Indonesian multispecific seagrass beds[J];Acta Oceanologica Sinica;2018年06期
18 尹洁慧;张光涛;李超伦;王世伟;赵增霞;万艾勇;;Community composition, abundance and biomass of zooplankton in Zhangzi Island waters, Northern Yellow Sea[J];Chinese Journal of Oceanology and Limnology;2017年05期
19 Michael G. FOX;David C. LASENBY;Alexis C. ARMIT;Dolly N. KOTHAWALA;;Substrate selection and seasonal variation in abundance and size composition of isopod Lirceus fontinalis in Ontario streams, Canada[J];Chinese Journal of Oceanology and Limnology;2007年02期
中国重要会议论文全文数据库 前9条
1 ;Why mammalian spermatogenesis“afraid”of heat ?[A];2012全国发育生物学大会摘要集[C];2012年
2 Zhilong Jia;Wubin Qu;Yiming Lu;Bo Min;Zhcyan Liu;Zhigang Luo;Chcnggang Zhang;;The effect of amino acid properties on protein abundance[A];第五届全国生物信息学与系统生物学学术大会论文集[C];2012年
3 施鹏;;Functional Diversification of Orthologous Bitter Taste Receptor Genes in Mammals[A];中国遗传学会第八次代表大会暨学术讨论会论文摘要汇编(2004-2008)[C];2008年
4 ;Seasonal variations of Aulacoseira granulate population abundance in the Pearl River Estuary[A];庆祝中国藻类学会成立30周年暨第十五次学术讨论会摘要集[C];2009年
5 李燕;刘庆;左园园;姚晓琴;陈景松;;加强UV-B辐射对藏东四种树种树苗的影响(英文)[A];2005青藏高原环境与变化研讨会论文摘要汇编[C];2005年
6 ;Genetic Diversity of the Striped Hamster(Cricetulus barabensis) is density- and season-dependent[A];第七届全国野生动物生态与资源保护学术研讨会论文摘要集[C];2011年
7 Huan ZHANG;Yuyu WANG;Shaoxia XIA;Bin CHEN;Xiubo YUA;;Sources of organic carbon supporting the dry-season food web of a sublake in wetlands of Poyang Lake[A];“全球变化下的海洋与湖沼生态安全”学术交流会论文摘要集[C];2014年
8 ;Effects of seed abundance on seed scatter-hoarding of dward's rat(Leopoldamys edwardsi Muridae) at individual level[A];第五届广东、湖南、江西、湖北四省动物学学术研讨会论文摘要汇编[C];2008年
9 ;Are Mangroves Attractive to Juvenile and Small Fish at Dongzhaigang Bay, Hainan Island, China?[A];第四届中国红树林学术会议论文摘要集[C];2008年
 快捷付款方式  订购知网充值卡  订购热线  帮助中心
  • 400-819-9993
  • 010-62982499
  • 010-62783978