The parasitic chytrid fungus Batrachochytrium dendrobatidis (Bd) can cause the lethal disease chytridiomycosis in amphibians and therefore may play a role in population declines. The yellow-bellied toad Bombina variegata suffered strong declines throughout western and northwestern parts of its range and is therefore listed as highly endangered for Germany and the federal state of Hesse. Whether...

Like many other coastal regions of the world, open-soil agricultural lands in the Fraser River Delta provide roosting and feeding habitat for non-breeding shorebirds that supplements intertidal habitat. Focusing on dunlin (Calidris alpina pacifica), black-bellied plover (Pluvialis squatorola), killdeer (Charadrius vociferus), and their avian predators (raptors), diurnal and nocturnal high tide ...

Case Description-A 4.6-month-old pot-bellied pig was evaluated because of non-weight-bearing lameness (grade 5/5) in the right forelimb of 4 days' duration. Clinical Findings-Clinical and radiographic examination revealed a closed, lateral luxation of the right shoulder joint. Treatment and Outcome-Initial attempts at closed reduction failed to provide adequate stability of the shoulder joint. ...

VAN VUREN, D., and ARMITAGE, K. B. 1991. Duration of snow cover and its influence on life-history variation in yellow-bellied marmots. Can. J. Zool. 69: 1755-1758. We evaluated the relationship between growing-season phenology, as indicated by time of snow melt, and intrapopulation variation in reproduction and growth of yellow-bellied marmots. The time of snow melt explained significant propor...

BRODY, A. K., and K. B. ARMITAGE. 1985. The effects of adult removal on dispersal of yearling yellow-bellied marmots. Can. J. Zool. 63: 2560-2564. The relative importance of adult-yearling interaction and individual behavioral phenotypes on dispersal of yearling yellow-bellied marmots was investigated. Two marmot colonies near Gothic, Colorado, were studied; one was treated as an experimental c...

Black Redstart Phoenicurus ochruros occurs over a broad range from Western Europe and north-west Africa to Central Asia. Seven subspecies are usually recognised, which can be divided morphologically into grey-and-white-bellied western group (‘Western Redstart’; two subspecies) an orange-bellied eastern (‘Eastern five subspecies). Because vocalisations might help understand relationships between...

Some fundamental biological questions can be answered only by taking an “ecology of place” approach—by studying a focal system over long periods of time. One of these fundamental questions is the degree to which population dynamics are a function of social behavior. Long-term studies of yellowbellied marmot populations of known pedigree have examined the role of kinship in social behavior and o...