In the Galápagos Islands climate and food abundance vary strongly among vegetation zones and between seasons. We studied the foraging behavior of four mainly insectivorous Darwin’s finch species on Santa Cruz Island. We compared foraging behavior between (1) the arid zone, where food is scarce, with the humid Scalesia zone, where food is abundant; and (2) within each zone between dry and wet se...

Purpose, hope, and life satisfaction in three age groups Kendall Cotton Bronk , Patrick L. Hill , Daniel K. Lapsley , Tasneem L. Talib & Holmes Finch To cite this article: Kendall Cotton Bronk , Patrick L. Hill , Daniel K. Lapsley , Tasneem L. Talib & Holmes Finch (2009) Purpose, hope, and life satisfaction in three age groups, The Journal of Positive Psychology, 4:6, 500-510, DOI: 10.1080/1743...

Ecological character displacement is a process of morphological divergence that reduces competition for limited resources. We used genomic analysis to investigate the genetic basis of a documented character displacement event in Darwin's finches on Daphne Major in the Galápagos Islands: The medium ground finch diverged from its competitor, the large ground finch, during a severe drought. We dis...

systemic amyloidosis and testicular interstitial tumor are rare conditions in birds and this is the first report in iran. a male zebra finch was presented because of white diarrhea, anorexia, loss of weight and lethargy. at necropsy, the small intestine was edematous and congested. the spleen appeared pale. the liver was large, firm and brown. one testis was cystic and neoplastic and the remain...

Studies of Darwin's finches of the Galapagos Islands have provided pivotal insights into the interplay of ecological variation, natural selection, and morphological evolution. Here we document, across nine Darwin's finch species, correlations between morphological variation and bite force capacity. We find that bite force correlates strongly with beak depth and width but only weakly or not at a...

The Fresnel incoherent correlation holography (FINCH) method is applicable to various techniques of imaging, including fluorescence microscopy. Recently, a FINCH configuration capable of optical sectioning, using a scanning phase pinhole, has been suggested [Optica 1, 70 (2014)]. This capability is highly important in situations that demand the suppression of out-of-focus information from the h...

Since the introduction of West Nile virus (WNV) into North America in 1999 a number of passerine bird species have been found to play a role in the amplification of the virus. Arbovirus surveillance, observational studies and experimental studies have implicated passerine birds (songbirds, e.g., crows, American robins, house sparrows, and house finches) as significant reservoirs of WNV in North...