Breeding of the Prairie Horned Lark (Otocoris alpestris praticola) near Pittsfield, Mass.

Year-round breeding equatorial Larks from three climatically-distinct populations do not use rainfall, temperature or invertebrate biomass to time reproduction

Timing of reproduction in birds is important for reproductive success and is known to depend on environmental cues such as day length and food availability. However, in equatorial regions, where day length is nearly constant, other factors such as rainfall and temperature are thought to determine timing of reproduction. Rainfall can vary at small spatial and temporal scales, providing a highly ...

Breeding Season Avifauna of Prairie Dog Colonies and Non-Colonized Areas in Shortgrass Prairie

Limited Phylogeographic Signal in Sex-Linked and Autosomal Loci Despite Geographically, Ecologically, and Phenotypically Concordant Structure of mtDNA Variation in the Holarctic Avian Genus Eremophila

Phylogeographic studies of Holarctic birds are challenging because they involve vast geographic scale, complex glacial history, extensive phenotypic variation, and heterogeneous taxonomic treatment across countries, all of which require large sample sizes. Knowledge about the quality of phylogeographic information provided by different loci is crucial for study design. We use sequences of one m...

Livestock grazing supports native plants and songbirds in a California annual grassland

Over eight years we measured the effects of plant community composition, vegetation structure, and livestock grazing on occurrence of three grassland bird species-Western Meadowlark (Sturnella neglecta), Horned Lark (Eremophila alpestris), and Grasshopper Sparrow (Ammodramus savannarum)-at sites in central California during breeding season. In California's Mediterranean-type climatic region, co...

Chair : Murray Lark Vice

This issue of Pedometron is timed to coincide with the biennial meeting of the Pedometrics Commission, Pedometrics 2007, which is taking place in Tübingen, Germany, from 27th August. I am sure that, as in the past, the Pedometrics meeting will be a great success, and offer my thanks to Thorsten Behrens, Thomas Scholten and Volker Hennings for their work in organizing it. If you are at the meeti...