Spatial niche partitioning may promote coexistence of penguins as climate-induced sympatry occurs.

Climate-induced range overlap can result in novel interactions between similar species and potentially lead to competitive exclusion. The West Antarctic Peninsula (WAP) is one of the most rapidly warming regions on Earth and is experiencing a poleward climate migration from a polar to subpolar environment. This has resulted in a range expansion of the ice-intolerant gentoo penguins () and a coincident decrease in ice-obligate Adélie penguins () near Palmer Station, Anvers Island, WAP.

Perception of contrastive bi-syllabic lexical stress in unaccented and accented words by younger and older listeners.

This study examined the ability of older and younger listeners to perceive contrastive syllable stress in unaccented and Spanish-accented cognate bi-syllabic English words. Younger listeners with normal hearing, older listeners with normal hearing, and older listeners with hearing impairment judged recordings of words that contrasted in stress that conveyed a noun or verb form (e.g.

Capturing additional information about the organization of entries in the lexicon from verbal fluency productions.

Troyer and colleagues [Troyer, A. K., Moscovitch, M.

Semantic clustering of category fluency in schizophrenia examined with singular value decomposition.

Decreased productivity on verbal fluency tasks by persons with schizophrenia has been attributed to semantic system abnormalities. Semantic structure is often assessed using multidimensional scaling (MDS) to detect normal and aberrant semantic clustering. However, MDS has limitations that may be particularly problematic for such assessments.

Speech acquisition in older nonverbal individuals with autism: a review of features, methods, and prognosis.

Individuals with autism often fail to develop useful speech. If they have not done so by age 5, the prognosis for future development has been thought to be poor. However, some cases of later development of speech have been reported.

Olfaction in olfactory bulbectomized rats.

Experimental rats had their right olfactory bulb removed on postnatal day 2 (P2) and their left olfactory bulb removed on P90. Control rats had one or both olfactory bulbs removed on P90. Before and after their adult-stage surgery, rats were trained using olfactometry and operant conditioning to detect and discriminate odors.