WebSmaller galls would avoid bird predation but would be more likely to be attacked by either of the wasp species. Natural selection may be acting on the gall fly’s ability to produce certain ... ©2014 CIBT Goldenrod Galls – Teacher Section Page 7 size galls. The presence of particular predator populations may be influencing the range of 4. 5. WebThe studies suggest that avian predators can assess a gall’s content prior to pecking it open, preferring galls that are inhabited by both E. solidaginis larvae and the inquiline predator Mordellistena convicta Leconte, and suggest thatAvian predators act against the maintenance of two distinct host races in the midwestern United States. Abstract Escape …
Downy Woodpecker Audubon Field Guide
WebThe goldenrod gall fly , also known as the goldenrod ball gallmaker, is a species of fly native to North America. The species is best known for the characteristic galls it forms … WebThe active little Downy Woodpecker is a familiar sight at backyard feeders and in parks and woodlots, where it joins flocks of chickadees and nuthatches, barely outsizing them. An … aura noise
(PDF) Winter predation by black-capped chickadees and …
WebOct 1, 2006 · Goldenrod galls showing disturbance by downy woodpecker (B) black-capped chickadee (C) and gall fly emergence (D). While inside the gall, the larva may … WebFeb 2, 2024 · Downy woodpeckers in particular avidly seek out gall fly larvae. The woodpecker finds a gall, chisels a hole into the center, often targeting the insect’s exit tunnel, and eats the nutritious prey. In different … WebSome birds, especially downy woodpeckers and black-capped chickadee, are predators of the larvae, breaking into the galls to get to the fly larva in the middle. Ice anglers in … aura nousiainen