Bill Loftus electrofishing in Shark River

This material is based upon work supported by the National Science Foundation through the Florida Coastal Everglades Long-Term Ecological Research program under Cooperative Agreements #DBI-0620409 and #DEB-9910514. This image is made available for non-commercial or educational use only.

The effects of sympatry on patterns of bill morphology between closely related species of birds, worldwide

When closely related species co-occur in sympatry, they face a significant challenge. They must adapt to the same local conditions in their shared environment, which favours the convergent evolution of traits, while simultaneously minimizing the costs of competition for shared resources that typically favours the divergent evolution of traits. Here, we use a comparative sister lineage approach to test how most species have responded to these conflicting selection pressures in sympatry, focusing on a key ecological trait: the bill morphology of birds. If similar bill morphologies incur fitness costs due to species interactions, then we predicted that the bill morphologies of closely related species would differ more in sympatry compared with allopatry. Alternatively, if similar bill morphologies incur fitness benefits due to local adaptation, then we predicted that the bill morphologies would be more similar in sympatry compared with allopatry. We used museum specimens to measure five aspects of bill (maxilla) morphology – depth, length, width, side shape, and bottom shape – in diverse bird species from around the world to test our alternative hypotheses. We found support for both divergent evolution and convergent evolution (or trait retention) in one ecological trait: closely related sympatric species diverged in bill depth, but converged in side shape. These patterns of bill evolution were influenced by the genetic distance between closely related sister taxa and the geographic distance between allopatric lineages. Overall, our results highlight species interactions as an important mechanism for the evolution of some (bill depth), but not all (bill shape), aspects of bill morphology in closely related species in sympatry, and provide strong support for the bill as a key ecological trait that can adapt in different ways to the conflicting challenges of sympatry.

Highbury Group Statement on Housing and Planning Bill

Briefing for members of House of Lords on Housing and Planning Bill

Commentary on the Booksellers' Bill (1737)

This Bill marks the first occasion on which the British legislature proposed to confer upon authors a lifetime interest in their literary works (with an additional eleven year post-mortem term vesting in their estates), as well as limited rights of translation and abridgement. In addition the draft legislation proposed to render null and void any contract purporting to assign an author's rights to another for a period of longer than ten years.
The commentary describes the background to the Bill, and in particular the attempts of the London book trade to secure more extensive legislative protection in both 1735 and 1737. It argues that the 1737 Bill is significant precisely because it was never made into law, and because it did not suit the best interests of the metropolitan booksellers. Instead, the book trade increasingly turned to the courts to further secure their commercial interests, giving rise to what is commonly referred to as the ‘battle of the booksellers' throughout the next 40 years.

”Buffalo Bill and his Wild West Show”. William F. ”Buffalo Bill” Codyn ja hänen Villin lännen show’nsa julkisuuskuva yhdysvaltalaisessa aikalaislehdistössä vuosina 1883 ̶ 1913.

Tässä tutkielmassa tutkin yhdysvaltalaisen aikalaislehdistön lukijoilleen välittämää julkisuuskuvaa Buffalo Billistä ja hänen Villin lännen show’staan sen toiminnan aikana 1883 ̶ 1913. Primääriaineistona käytän The New York Timesiä, mutta lisäksi hyödynnän myös pienempiä paikallislehtiä täydentämään kuvaa. William F. ”Buffalo Bill” Cody on yksi Villin lännen tunnetuimmista hahmoista ja hänen suurin saavutuksensa oli sen legendojen tekeminen tutuksi maailmanlaajuiselle yleisölle. Villin lännen show’n ohjelma koostui viidestä pääteemasta: ratsastustaidoista, ampumataidoista, eläinnäytöksistä, näytelmistä sekä tasankointiaanien ja valkoisten välisistä konflikteista. Tutkitulla ajanjaksolla aikalaislehdistön kuvaukset osoittautuivat hyvin myönteisiksi show’ta kohtaan ja kilpailijoista huolimatta se oli The New York Timesin mukaan ”the only and original Wild West”. Show’ta mainostettiin koko perheelle sopivana ja sen esityksissä vieraili vuosien aikana miljoonia katsojia. Ohjelman kantavana ideana oli kuitenkin väkivallan välttämättömyys lännen valloittamisessa. Samalla show’hun kuuluneet intiaanit esiteltiin areenalla ja lehdistössä hyvin stereotyyppisinä vihollisina, maalattuina ja verenhimoisina. Lehdistö, joka välitti lukijoilleen varsin intensiivisiä kuvauksia tapahtumista showareenalla, huolestui esityksien vaikutuksista lapsiin ja nuoriin. Buffalo Billin yhteistyökumppanit rakensivat hänelle sankarillisen imagon viihderomaanien ja show’n avulla. Riitaisan avioeroprosessin myötä ennen niin hyvä julkisuuskuva lehdistössä alkoi murentua, kun naisseikkailut ja muut salaisuudet tulivat päivänvaloon. Suurista tuloista huolimatta Buffalo Billillä oli vaikeuksia hallita talouttaan anteliaisuutensa ja huonojen sijoituksien vuoksi. Iän karttuessa ja terveyden heikentyessä hänen roolinsa show’ssa väheni, minkä seurauksena myös median kiinnostus alkoi hiipua. Villin lännen show ajautui konkurssiin vuonna 1913, mutta sitä ennen se kiersi lukuisat kaupungit Pohjois-Amerikassa ja Euroopassa. Aikalaislehdistön mukaan Buffalo Bill ja show olivat tehneet suuren vaikutuksen Yhdysvaltojen entiseen siirtomaaisäntään Britanniaan ja seuraava askel on vertailla näiden kahden maan lehdistön suhtautumista esitykseen.

Transcript on the subject of the Bureau of Employment Agencies, and Assembly bill 3181 (Kapiloff), and Assembly bill 3297 (Sieroty) : public hearing on October 26, 1976, State Capitol, Room 4202, Sacramento, California /

Cover title.

Colorado Ute Water Settlement Bill : joint hearing before the Select Committee on Indian Affairs, United States Senate and the Committee on Energy and Natural Resources, United States Senate, One Hundredth Congress, first session, on S. 1415 ... December 3, 1987, Washington, DC.

Bibliography: p. 463-464.

Music of Today: 80 and 90 Stuart Dempster William O. "Bill" Smith October 26, 2016

Concert Program

Pollination Ecology Of Two Species Of Elleanthus (orchidaceae): Novel Mechanisms And Underlying Adaptations To Hummingbird Pollination.

Relationships among floral biology, floral micromorphology and pollinator behaviour in bird-pollinated orchids are important issues to understand the evolution of the huge flower diversity within Orchidaceae. We aimed to investigate floral mechanisms underlying the interaction with pollinators in two hummingbird-pollinated orchids occurring in the Atlantic forest. We assessed floral biology, nectar traits, nectary and column micromorphologies, breeding systems and pollinators. In both species, nectar is secreted by lip calli through spaces between the medial lamellar surfaces of epidermal cells. Such form of floral nectar secretion has not been previously described. Both species present functional protandry and are self-compatible yet pollinator-dependent. Fruit sets in hand-pollination experiments were more than twice those under natural conditions, evidencing pollen limitation. The absence of fruit set in interspecific crosses suggests the existence of post-pollination barriers between these synchronopatric species. In Elleanthus brasiliensis, fruits resulting from cross-pollination and natural conditions were heavier than those resulting from self-pollination, suggesting advantages to cross-pollination. Hummingbirds pollinated both species, which share at least one pollinator species. Species differences in floral morphologies led to distinct pollination mechanisms. In E. brasiliensis, attachment of pollinaria to the hummingbird bill occurs through a lever apparatus formed by an appendage in the column, another novelty to the knowledge of orchids. In E. crinipes, pollinaria attachment occurs by simple contact with the bill during insertion into the flower tube, which fits tightly around the bill. The novelties described here illustrate the overlooked richness in ecology and morphophysiology in Orchidaceae. This article is protected by copyright. All rights reserved.

A new species of Acteon (Opisthobranchia: Acteonidae) from Northeast Brazil

A new species of Acteon Montfort 1810, Acteon mirim sp. nov., from Canopus Bank, state of Ceará, Brazil is described based on shell morphology. The new species is compared with other species of the genus reported from Brazil. It differs from other Brazilian species in having a whitish color with dark orange-brown spiral bands and a shell surface covered with small spiral grooves, regularly rectangular.

The International Collaboration on Air Pollution and Pregnancy Outcomes: Initial Results

BACKGROUND: The findings of prior studies of air pollution effects on adverse birth outcomes are difficult to synthesize because of differences in study design. OBJECTIVES: The International Collaboration on Air Pollution and Pregnancy Outcomes was formed to understand how differences in research methods contribute to variations in findings. We initiated a feasibility study to a) assess the ability of geographically diverse research groups to analyze their data sets using a common protocol and b) perform location-specific analyses of air pollution effects on birth weight using a standardized statistical approach. METHODS: Fourteen research groups from nine countries participated. We developed a protocol to estimate odds ratios (ORs) for the association between particulate matter <= 10 mu m in aerodynamic diameter (PM(10)) and low birth weight (LBW) among term births, adjusted first for socioeconomic status (SES) and second for additional location-specific variables. RESULTS: Among locations with data for the PM(10) analysis, ORs estimating the relative risk of term LBW associated with a 10-mu g/m(3) increase in average PM(10) concentration during pregnancy, adjusted for SES, ranged from 0.63 [95% confidence interval (CI), 0.30-1.35] for the Netherlands to 1.15 (95% CI, 0.61-2.18) for Vancouver, with six research groups reporting statistically significant adverse associations. We found evidence of statistically significant heterogeneity in estimated effects among locations. CONCLUSIONS: Variability in PM(10)-LBW relationships among study locations remained despite use of a common statistical approach. A more detailed meta-analysis and use of more complex protocols for future analysis may uncover reasons for heterogeneity across locations. However, our findings confirm the potential for a diverse group of researchers to analyze their data in a standardized way to improve understanding of air pollution effects on birth outcomes.

New reports of Antricola guglielmonei and Antricola delacruzi in Brazil, and a description of a new argasid species (Acari)

Adults of 3 tick species (Acari: Argasidae) identified as Antricola guglielmonei, Antricola delacruzi, and Carios rondoniensis n. sp. were collected oil bill guano in a cave in the state of Rondonia, western Amazon. Brazil. Adults of C. rondoniensis Possess a unique combination of characters that distinguish them front all described adults in the Argasidae. i.e.. a large spiracular plate densely filled with small goblets, a well-developed flap covering the female genital opening, and palpi containing several tufts of long setae oil articles 2 and 3. Unlike Ornithodoros or other Carios species. adults of C rondoniensis have a scooplike hypostome devoid of denticles, as in Antricola spp. Conversely, the presence of a pair of long posthypostomal setae, and a slitlike transverse fissure at the Capsule opening of the Haller's organ, are characters of C. rondonensis that are also found ill species of Carios and Ornithodoros, but not in Antricola species. Molecular analyses inferred from a portion of the 16S rRNA mitochondrial gene indicate that C. rondoniensis is phylogenetically closest to species of Carios. followed by species of Antricola. and then Ornithodoros. Because the highest bootstrap value linking C. rondoniensis to Carios spp. was 62%, further phylogenetic studies are needed to better evaluate the taxonomic Status of the former species.

Genome-wide SNP genotyping highlights the role of natural selection in Plasmodium falciparum population divergence

Background: The malaria parasite Plasmodium falciparum exhibits abundant genetic diversity, and this diversity is key to its success as a pathogen. Previous efforts to study genetic diversity in P. falciparum have begun to elucidate the demographic history of the species, as well as patterns of population structure and patterns of linkage disequilibrium within its genome. Such studies will be greatly enhanced by new genomic tools and recent large-scale efforts to map genomic variation. To that end, we have developed a high throughput single nucleotide polymorphism (SNP) genotyping platform for P. falciparum. Results: Using an Affymetrix 3,000 SNP assay array, we found roughly half the assays (1,638) yielded high quality, 100% accurate genotyping calls for both major and minor SNP alleles. Genotype data from 76 global isolates confirm significant genetic differentiation among continental populations and varying levels of SNP diversity and linkage disequilibrium according to geographic location and local epidemiological factors. We further discovered that nonsynonymous and silent (synonymous or noncoding) SNPs differ with respect to within-population diversity, interpopulation differentiation, and the degree to which allele frequencies are correlated between populations. Conclusions: The distinct population profile of nonsynonymous variants indicates that natural selection has a significant influence on genomic diversity in P. falciparum, and that many of these changes may reflect functional variants deserving of follow-up study. Our analysis demonstrates the potential for new high-throughput genotyping technologies to enhance studies of population structure, natural selection, and ultimately enable genome-wide association studies in P. falciparum to find genes underlying key phenotypic traits.

Programmable diagnostic devices made from paper and tape

This paper describes three-dimensional microfluidic paper-based analytical devices (3-D mu PADs) that can be programmed (postfabrication) by the user to generate multiple patterns of flow through them. These devices are programmed by pressing single-use 'on' buttons, using a stylus or a ballpoint pen. Pressing a button closes a small space (gap) between two vertically aligned microfluidic channels, and allows fluids to wick from one channel to the other. These devices are simple to fabricate, and are made entirely out of paper and double-sided adhesive tape. Programmable devices expand the capabilities of mu PADs and provide a simple method for controlling the movement of fluids in paper-based channels. They are the conceptual equivalent of field-programmable gate arrays (FPGAs) widely used in electronics.