干旱区生态环境知识资源中心(Arid): Dietary importance of C3 and CAM food pathways for birds in a Neotropical semiarid zone

Arid

DOI	10.1111/btp.12798
	Dietary importance of C3 and CAM food pathways for birds in a Neotropical semiarid zone
	Gonzalez-Carcacia, Jose Antonio 1; Herrera M., L. Gerardo 2; Nassar, Jafet M.1
通讯作者	Herrera M., L. Gerardo ; Nassar, Jafet M.
来源期刊	BIOTROPICA
ISSN	0006-3606
EISSN	1744-7429
出版年	2020
卷号	52 期号:5 页码:938-945
英文摘要	Vegetation of tropical dry ecosystems is represented by patches of plants with different photosynthetic pathways. We used C and N stable isotope mixing models to assess the relative importance of CAM and C3 vegetation as direct or indirect sources of food for birds in a Neotropical semiarid zone. We analyzed tissues from 26 bird species encompassing a broad array of feeding habits in the dry and rainy seasons. Although CAM plants are important elements of our study site, their use as food was mainly restricted to some plant-eating and omnivorous bird species. Intermediate or High dependence on CAM food was observed in only 7 species: three frugivores, one nectarivore, one granivore, and two omnivores. Instead, C3-derived food sustained most of the bird species studied, even some for which dependence on CAM-derived food was reported in studies using other methodological approaches. Consumption of C3 insects extended to the entire assemblage of birds, including plant-eating species. Our findings highlight the importance of maintaining vegetation heterogeneity in arid zones for animal communities and the need to provide increasing protection measures to woody C3 species, as their local demand for firewood is rapidly increasing. in Spanish is available with online material.
英文关键词	birds carbon food webs habitat heterogeneity nitrogen stable isotopes trophic ecology Venezuela
类型	Article
语种	英语
国家	Venezuela ; Mexico
收录类别	SCI-E
WOS记录号	WOS:000535122800001
WOS关键词	COLUMNAR CACTI ; STENOCEREUS-GRISEUS ; POLLINATION BIOLOGY ; TEHUACAN VALLEY ; AVIAN CONSUMERS ; NITROGEN ; CARBON ; DISCRIMINATION ; FRACTIONATION ; PHENOLOGY
WOS类目	Ecology
WOS研究方向	Environmental Sciences & Ecology
来源机构	Universidad Nacional Autónoma de México
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/319172
作者单位	1.Inst Venezolano Invest Cient, Ctr Ecol, Lab Biol Organismos, Altos De Pipe, Venezuela; 2.Univ Nacl Autonoma Mexico, Estn Biol Chamela, Inst Biol, San Patricio, Mexico
推荐引用方式 GB/T 7714	Gonzalez-Carcacia, Jose Antonio,Herrera M., L. Gerardo,Nassar, Jafet M.. Dietary importance of C3 and CAM food pathways for birds in a Neotropical semiarid zone[J]. Universidad Nacional Autónoma de México,2020,52(5):938-945.
APA	Gonzalez-Carcacia, Jose Antonio,Herrera M., L. Gerardo,&Nassar, Jafet M..(2020).Dietary importance of C3 and CAM food pathways for birds in a Neotropical semiarid zone.BIOTROPICA,52(5),938-945.
MLA	Gonzalez-Carcacia, Jose Antonio,et al."Dietary importance of C3 and CAM food pathways for birds in a Neotropical semiarid zone".BIOTROPICA 52.5(2020):938-945.