In the absence of more information on the host range
of these endoparasitoids, we are left with the general pattern that endoparasitoids typically have more restricted diet breadth and are also more influenced by host plants (although Shaw  urges caution when making sweeping generalizations).
These species were not included in our host range
tests, but if C.
The results of the biometric study of the adult spiraling whitely are similar to the findings in earlier studies regarding the size, egg laying pattern and host range
(Waterhouse & Norris, 1989; Gill, 1990; Wijesekera & Kudagamage, 1990; Palaniswami et al.
Floate and Whitham (1993) hypothesize that plant hybrids "bridge" the genetic gap between actual and potential host species, and therefore make it more likely that the insect will evolve an expanded host range
Although orthopoxviruses are antigenically and genetically similar, they have diverse host range
and virulence properties (1-6).
We showed that the host range
of the blight pathogen is broader than the host range
of the pepper spot pathovar," says Bull.
The book is well organized, with a consistent format to each chapter, which includes history, distribution, host range
, etiology, epizootiology, clinical signs, pathogenesis and pathology, diagnosis, immunity, public health concerns, domestic animal health concerns, wildlife impacts, treatment and control, and management strategies.
For instance, several chapters discuss how the degree of trophic specialization by ticks may influence disease incidence: ticks with a narrow host range
tend to be associated with high disease incidence.
However, because of its broad host range
(De Santis 1967), this parasitoid was dropped from further consideration as a potential biological control agent in North America (Pemberton & Cordo 2001).
It has the widest host range
of any fruit fly, is a rapid coloniser and can tolerate cooler climates than other species of fruit flies.
The family Hepadnaviridae comprises 2 genera (Orthohepadnavirus and Avihepadnavirus), and viruses classified within these genera have a narrow host range
Thus, the host range
of IBV does extend beyond the chicken.