干旱区生态环境知识资源中心(Arid): Secondary Seed Ingestion in Snakes: Germination Frequency and Rate, Seedling Viability, and Implications for Dispersal in Nature

Arid

DOI	10.3389/fevo.2021.761293
	Secondary Seed Ingestion in Snakes: Germination Frequency and Rate, Seedling Viability, and Implications for Dispersal in Nature
	Schuett, Gordon W.; Reiserer, Randall S.; Salywon, Andrew M.; Blackwell, Steven; Hodgson, Wendy C.; Foster, C. Drew; Hall, James; Zach, Ryan; Davis, Mark A.; Greene, Harry W.
通讯作者	Schuett, GW (corresponding author)，Georgia State Univ, Dept Biol, Neurosci Inst, Atlanta, GA USA. ; Schuett, GW (corresponding author)，Chiricahua Desert Museum, Rodeo, NM USA. ; Davis, MA (corresponding author)，Univ Illinois, Illinois Nat Hist Survey, Prairie Res Inst, Champaign, IL 61820 USA.
来源期刊	FRONTIERS IN ECOLOGY AND EVOLUTION
ISSN	2296-701X
出版年	2022
卷号	9
英文摘要	The importance of vertebrate animals as seed dispersers (zoochory) has received increasing attention from researchers over the past 20 years, yet one category in particular, diploendozoochory, remains understudied. As the term implies, this is a two-phase seed dispersal system whereby a secondary seed predator (carnivorous vertebrate) consumes a primary seed predator or granivore (rodent and bird) with undamaged seeds in their digestive tract (mouth, cheek pouch, crop, stomach, or other organ), which are subsequently eliminated with feces. Surprisingly, although snakes are among the most abundant predators of granivorous vertebrates, they are the least studied group insofar as our knowledge of seed rescue and secondary dispersal in a diploendozoochorous system. Here, using live snake subjects of the Sonoran Desert (one viperid and two colubrid species) and seeds of the Foothill Palo Verde (Parkinsonia microphylla), a dominant tree of the same region, we experimentally tested germination frequency and rate, and seedling viability. Specifically, to mimic rodents with seed-laden cheek pouches, we tested whether wild-collected P. microphylla seeds placed in the abdomen of thawed laboratory mice and ingested by the snakes would retain their germination viability. Second, we examined whether seeds exposed to gut transit germinated at a greater frequency and rate than the controls. While we found strong statistical support for our first hypothesis, both aspects of the second one were not significant. Accordingly, we provide an explanation for these results based on specific life-history traits (dormant and non-dormant seeds) of P. microphylla. Our study provides support for the role of snakes as important agents of seed rescue and dispersal in nature, their potential as ecosystem engineers, and crucial evidence for the investment of field-based studies on diploendozoochorous systems in deserts and other ecosystems.
英文关键词	Crotalus atrox Foothill Palo Verde diploendozoochory Lampropeltis splendida Pituophis catenifer reptiles seed rescue seed dispersal
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000745990200001
WOS关键词	GUTS ; EVOLUTIONARY ; VARIABILITY ; POPULATIONS ; DISTANCE ; DORMANCY ; BEETLES ; PASSAGE ; TRAITS ; ISLAND
WOS类目	Ecology
WOS研究方向	Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/376623
作者单位	[Schuett, Gordon W.] Georgia State Univ, Dept Biol, Neurosci Inst, Atlanta, GA USA; [Schuett, Gordon W.; Reiserer, Randall S.] Chiricahua Desert Museum, Rodeo, NM USA; [Reiserer, Randall S.; Salywon, Andrew M.; Blackwell, Steven] Desert Bot Garden, Phoenix, AZ USA; [Foster, C. Drew; Hall, James; Zach, Ryan] Arizona Ctr Nat Conservat, Phoenix, AZ USA; [Zach, Ryan] Zoo Miami, Miami, FL USA; [Davis, Mark A.] Univ Illinois, Illinois Nat Hist Survey, Prairie Res Inst, Champaign, IL 61820 USA; [Greene, Harry W.] Univ Texas Austin, Dept Integrat Biol, Austin, TX 78712 USA; [Greene, Harry W.] Cornell Univ, Cornell Univ Museum Vertebrates, Dept Ecol & Evolutionary Biol, Ithaca, NY USA
推荐引用方式 GB/T 7714	Schuett, Gordon W.,Reiserer, Randall S.,Salywon, Andrew M.,et al. Secondary Seed Ingestion in Snakes: Germination Frequency and Rate, Seedling Viability, and Implications for Dispersal in Nature[J],2022,9.
APA	Schuett, Gordon W..,Reiserer, Randall S..,Salywon, Andrew M..,Blackwell, Steven.,Hodgson, Wendy C..,...&Greene, Harry W..(2022).Secondary Seed Ingestion in Snakes: Germination Frequency and Rate, Seedling Viability, and Implications for Dispersal in Nature.FRONTIERS IN ECOLOGY AND EVOLUTION,9.
MLA	Schuett, Gordon W.,et al."Secondary Seed Ingestion in Snakes: Germination Frequency and Rate, Seedling Viability, and Implications for Dispersal in Nature".FRONTIERS IN ECOLOGY AND EVOLUTION 9(2022).