THE BIOLOGY OF CANADIAN WEEDS. 38. Arctium minus (Hill) Bernh. and A. lappa L.

Gross, Ronald S.; Werner, Patricia A.; Hawthorn, Wayne R.

doi:10.4141/cjps80-089

Cited by 18 publications

(24 citation statements)

References 16 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…As noted by Nealen and Nealen (2000), Ruby-throated Hummingbirds prefer reddish flowers (Robinson et al 1996; but see Miller and Miller 1971), although they do not specialize on a particular species (Bertin 1982). Because burdock flowers are within the red spectrum (Gross et al 1980), hummingbirds may be attracted to them in the ridge forest where there are few of the hummingbird's putatively preferred species (Robinson et al 1996;Shay 1999).…”

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Ruby-throated Hummingbird, Archilochus colubris, Entanglements in Burdock, Arctium spp., at Delta Marsh, Manitoba

2004

View full text Add to dashboard Cite

. 2004. Ruby-throated Hummingbird, Archilochus colubris, entanglements in burdock, Arctium spp., at Delta Marsh, Manitoba. Canadian Field-Naturalist 118(1): 85-89.Exotic burdock (Arctium spp.) pose a risk of mortality for small native birds, such as the Ruby-throated Hummingbird (Archilochus colubris), which may become entangled in its burrs. At Delta Marsh, Manitoba, we found 11 hummingbirds and five individuals of four species of songbirds entangled on burdock in the dune-ridge forest over a 20-year period. Entangled birds were mostly migrants. Most hummingbirds caught were juvenile males, whereas the few songbirds were mostly adult males. We suspect that hummingbird entanglements resulted from an attraction to the purple flowers of burdock, but aggressive interactions with conspecifics and other factors may have been involved. Birds may be at a higher risk of entanglement at important migratory stopover sites, such as Delta Marsh, where both burdock and large numbers of birds are concentrated in a small area.

show abstract

Section: Discussionmentioning

confidence: 99%

“…and small birds and bats in North America (McNicholl 1988(McNicholl , 1994. Four species of burdock were introduced from Eurasia into North America in the early 1600s (Gross et al 1980;Harms 2001). All four species of burdock develop seed heads covered with burrs that stick to passing animals, thus dispersing the seeds (McNicholl 1988).…”

mentioning

confidence: 99%

Ruby-throated Hummingbird, Archilochus colubris, Entanglements in Burdock, Arctium spp., at Delta Marsh, Manitoba

2004

View full text Add to dashboard Cite

show abstract

“…Common burdock is an invasive Eurasian biennial now found from the southern US to every D r a f t 5 province of Canada (Gross et al 1980). In Ontario, A. minus is attacked by both generalist and specialist herbivores (Gross et al 1980;Kambo and Kotanen 2014).…”

Section: Study Speciesmentioning

confidence: 99%

“…In Ontario, A. minus is attacked by both generalist and specialist herbivores (Gross et al 1980;Kambo and Kotanen 2014). Herbivores include native agromyzid miner herbivores such as Liriomyza arctii Spencer (serpentine miner) and Calcomyza flavinotum (Frick) (blotch miner), many chewing folivores such as native grasshoppers (Melanoplus keeleri Thomas), exotic snails (Cepaea nemoralis (L.)), and lepidoptera including the native crambid, Herpetogramma pertextalis (Lederer), and sucking herbivores such as introduced froghoppers (Philaenus spumarius (L.)).…”

Section: Study Speciesmentioning

confidence: 99%

“…Finally, pre-dispersal seed predators including the introduced gelechiid burdock seedhead moth (Metzneria lappella (L.)) and tephritid flies lay eggs in the capitula, where their larvae consume the seeds. According to Gross et al (1980) Metzneria is the only Arctium specialist established in North America. Liriomyza arctii is poorly known, but was described on Arctium in North America, and presumably uses native hosts as well.…”

Section: Study Speciesmentioning

confidence: 99%

See 1 more Smart Citation

Differences in herbivore damage toArctium minusin open and forest habitats in its non-native range

Lee

Kotanen

2017

Botany

View full text Add to dashboard Cite

Exotic plants do not always escape enemies in new areas; instead, they may be damaged by coinvading non-native enemies or by enemies recruited from native species. However, even when such enemies exist in an invader's new range, escape may still be possible if particular habitats offer lowdamage refuges. In this study, herbivory on the non-native common burdock (Arctium minus) were compared between open and understory habitats, with high and low sunlight exposure respectively, on five sites in Ontario, Canada. Open-habitat populations showed relatively reduced herbivore damage; this may be due to herbivores occurring less abundantly in open habitats or burdock expressing greater defences in open sites. These results emphasize that enemy release is not an absolute effect, but can depend on an individual's habitat. As well, they suggest herbivory potentially may help to confine burdock primarily to open habitats.

show abstract

Resource limitation of tephritid flies on lesser burdock, Arctium minus (Hill) Bernh. (Compositae)

Straw¹

1991

Oecologia

View full text Add to dashboard Cite

The intensity of resource exploitation by phytophagous insects is usually considered to reflect population size. For populations of two flowerhead-attacking tephritid flies, however, the resources utilised were not related to the numbers of searching adults. Tephritis bardanae Schrank attacked 11-13% of the total flowerheads each year, and Cerajocera tussilaginis (Fab) 17-65%, despite much wider and uncorrelated variation in adult numbers. Analysis of field data showed that the proportion of flowerheads used was not limited by poor flowerhead quality, but was restricted by (1) the synchronisation of adult activity with the appearance of flowerheads at the correct age for oviposition, and (2) by factors which influenced the ability of female flies to locate available heads. These restrictions were more severe in T. bardanae and explained its relatively low rate of infestation. Both tephritids tended to avoid flowerheads in open areas. The processes governing resource exploitation in each tephritid operated independently of the other, and a partial separation of the two species between flowerhead types and habitats arose simply because of their different timing of attack.

show abstract

THE BIOLOGY OF CANADIAN WEEDS. 38. Arctium minus (Hill) Bernh. and A. lappa L.

Abstract: l. Name

Cited by 18 publications

References 16 publications

Ruby-throated Hummingbird, <em>Archilochus colubris</em>, Entanglements in Burdock, <em>Arctium</em> spp., at Delta Marsh, Manitoba

Ruby-throated Hummingbird, <em>Archilochus colubris</em>, Entanglements in Burdock, <em>Arctium</em> spp., at Delta Marsh, Manitoba

Differences in herbivore damage toArctium minusin open and forest habitats in its non-native range

Resource limitation of tephritid flies on lesser burdock, Arctium minus (Hill) Bernh. (Compositae)

Contact Info

Product

Resources

About