Influence of sunflower morphological characteristics on achene depredation by birds

Seiler, Gerald J.; Rogers, C. E.

doi:10.1016/0167-8809(87)90028-4

Cited by 13 publications

(4 citation statements)

References 9 publications

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“…Other methods may decrease ability or preference for House Sparrow feeding including the selective breeding of plant characteristics to reduce feeding (Tipton et al, 1970;Khaleghizadeh, 2011). For example in sunflowers, the height of the plant and angle of the head and stem may impact the rate of sparrow damage, and selecting for shorter plants with heads and stems angled more towards the ground may mitigate potential damage (Seiler and Rogers, 1987;Khaleghizadeh, 2011).…”

Section: Impactsmentioning

confidence: 99%

Invasive birds: global trends and impacts

2020

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This 381-paged book covers the biology, ecology, impact and management of 34 common alien invasive species, with reviews on the history and context of avian introductions and invasions in five major regions (Oceania, Africa, Europe (including the Middle East, Asia and South America)), as well as management challenges and the potential of citizen science for monitoring alien birds. The book pitches at the introductory level and is ideal for readers to gain a quick and comprehensive view of the current status of global avian invasions. It has brought the records and research of avian invasion one step ahead of other alien invasive animal taxa. Many chapters contain distribution maps and data tables on the diet and morphology of the species, providing a good reference for the species and its management issues. Each chapter also contains a rich list of references that could help readers dive further into the topic.

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Section: Impactsmentioning

confidence: 99%

Invasive birds: global trends and impacts

2020

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“…The search for bird-resistant crops peaked in the 1980s, when a concerted effort was made to discover and develop bird-resistant corn and sunflower varieties (Dolbeer et al 1982(Dolbeer et al , 1984(Dolbeer et al , 1986a(Dolbeer et al , 1986bSeiler and Rogers 1987;Mah et al 1990;Mah and Nuechterlein 1991). The efficacy of bird-resistant crops and many other bird management techniques (e.g., mechanical and chemical repellents) is largely contingent on the availability of quality alternative food sources, a practice encouraged by Dolbeer et al (1984) and Avery (2003).…”

Section: Bird-resistant Cropsmentioning

confidence: 99%

“…The goal was to develop a bird-resistant sunflower while maintaining palatability, yield, and oil content. Scientists surmised the features needed to inhibit perch-feeding and seed access included a flat or concave head shape, tightly held achenes, thick fibrous hulls, hulls with high levels of anthocyanins, long chaffs, long wrap around bracts, a head-to-stem distance of more than 15 cm, and ground-facing flowers (Parfitt 1984;Seiler and Rogers 1987;Gross and Hanzel 1991). Additionally, the percentage of oil, which is correlated with hull thickness, was thought to be a key reason for birds selecting particular varieties of sunflower (Mason et al 1991).…”

Section: Sunflowermentioning

confidence: 99%

Strategies for Evading Blackbird Damage

Linz¹,

Klug²

2017

Ecology and Management of Blackbirds (Icteridae) in North America

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“…Migrating birds, such as the common grackle, Quiscalus quiscula, preferred energy-rich foods such as sunfl ower (Homan et al, 1994). Seiler and Rogers (1987) reported that chaff length, head angle, plant height, stem angle, and the tight achene genotype contributed to bird resistance. Bullard (1988) reported that morphological characteristics of sunflower plantsconcave heads and medium distance between head and stem -discouraged feeding by blackbirds.…”

mentioning

confidence: 99%