Physiological factors are rarely proposed to account for variation in the morphology of
feeding structures. Recently, bird bills have been demonstrated to be important convective …

Abstract Theory suggests that different taxa having colonized a similar, challenging
environment will show parallel or lineage-specific adaptations to shared selection …

Background Evolutionary processes, including selection and differential fitness, shape the
introgression of genetic material across a hybrid zone, resulting in the exchange of some …

Elucidating forces capable of driving species diversification in the face of gene flow remains
a key goal in evolutionary biology. Song sparrows, Melospiza melodia, occur as 25 …

Hybridization is influential in shaping species' dynamics and has many evolutionary and
conservation implications. Identification of hybrid individuals typically relies on …

Rationale Determining the flow of energy from primary producers to higher trophic levels in
complex systems remains an important task for ecologists. Biomarkers can be used to trace …

ABSTRACT The Many-colored Rush Tyrant (Tachuris rubrigastra) and Wren-like Rushbird
(Phleocryptes melanops) are birds that inhabit the subtropical salt marshes of Brazil, a newly …

Microorganism communities can shape host phenotype evolution but are often comprised of
thousands of taxa with varied impact on hosts. Identification of taxa influencing host …

Bioindicator species are commonly used as proxies to help identify the ecological effects of
oil spills and other stressors. However, the utility of taxa as bioindicators is dependent on …

Aim Shaped by climate change and sea‐level rise, tidal salt marshes represent ephemeral
systems that are home to only a few species. The dynamic ecological histories of these …