On the distribution of gymnosperm genera, their areas of endemism and cladistic biogeography

2002 ◽  
Vol 15 (2) ◽  
pp. 193 ◽  
Author(s):  
Raúl Contreras-Medina ◽  
Isolda Luna Vega
Keyword(s):  
New Caledonia ◽  
The Other ◽  
Western China ◽  
Distributional Analysis ◽  
General Area ◽  
Areas Of Endemism ◽  
Similarities And Differences ◽  
Cladistic Biogeography ◽  
Biogeographic Analysis

A distributional analysis of 81 gymnosperm genera was undertaken. On the basis of the congruence in the distribution of these genera, nine areas of endemism were recognised. Many of these areas also represent areas of endemism for other plant and animal taxa. South-western China and New Caledonia are particularly interesting from the viewpoint of gymnosperm diversity and endemism. The suggested areas of endemism agree in part with some floristic regions previously proposed. The congruence between the areas of endemism suggested and postulated Pleistocene refuges and panbiogeographic nodes is discussed. A cladistic biogeographic analysis was carried out and a general area cladogram obtained by strict consensus shows two major components, one Gondwanic and the other almost Laurasian. This cladogram was compared with previous studies and the similarities and differences among relationship areas are discussed.

scholarly journals Areas of endemism of hummingbirds (Aves: Apodiformes: Trochilidae) in the Andean and Neotropical regions

2018 ◽  
Vol 35 ◽  
pp. 1-13
Author(s):  
Daiane Ouvernay ◽  
Ildemar Ferreira ◽  
Juan J. Morrone
Keyword(s):  
North America ◽  
Lesser Antilles ◽  
Guiana Shield ◽  
The Andes ◽  
Areas Of Endemism ◽  
Cladistic Biogeography ◽  
Dispersal Events ◽  
Track Analysis ◽  
Biogeographic Analysis

Using track analysis and cladistic biogeography, we identified areas of endemism of hummingbirds in the Andean and Neotropical regions. Our results point out that the current areas of endemism of hummingbirds occur in the Andes, Guiana Shield, the Lesser Antilles, western Central and North America and the Chiapas Highlands. The cladistic biogeographic analysis suggests a hummingbird distribution shaped mainly by dispersal events.

Cladistic biogeography of afromontane spiders

1991 ◽  
Vol 4 (1) ◽  
pp. 73 ◽  
Author(s):  
CE Griswold
Keyword(s):  
South Africa ◽  
Eastern Africa ◽  
General Area ◽  
Tropical Africa ◽  
Parsimony Method ◽  
Biogeographic Patterns ◽  
Biogeographic Pattern ◽  
Areas Of Endemism ◽  
Cladistic Biogeography ◽  
Answering Questions

The application of cladistic data is seen as crucial to answering questions regarding the definition, mode of origin and age of historical biogeographic patterns. From the cladograms and distributional data for four groups of afromontane spiders [Microstigmata (Microstigmatidae), the Moggridgea quercina group (Migidae), and the subfamilies Vidoleini and Phyxelidini (Amaurobiidae)] a set of nine disjunct areas of endemism is defined for African and Malagasy forests. Taxonlarea cladograms are combined through a parsimony method to produce a general area cladogram. General conclusions are: (1) Madagascar is related to eastern Africa and/or eastern South Africa rather than being the sister area to all of Africa; (2) eastern South Africa shows affinities with tropical Africa rather than with the nearby Cape region; (3) the Cape region of South Africa is highly distinctive; and (4) the area cladogram is hard to reconcile with historical scenarios involving primarily dispersal or Pleistocene vicariance events, and a Mesozoic origin for parts of the biogeographic pattern for afromontane spiders is possible.

scholarly journals Areas of endemism of hummingbirds (Aves: Apodiformes: Trochilidae) in the Andean and Neotropical regions

2018 ◽  
Vol 35 ◽  
pp. 1-13
Author(s):  
Daiane Ouvernay ◽  
Ildemar Ferreira ◽  
Juan Morrone
Keyword(s):  
North America ◽  
Lesser Antilles ◽  
Guiana Shield ◽  
The Andes ◽  
Areas Of Endemism ◽  
Cladistic Biogeography ◽  
Dispersal Events ◽  
Track Analysis ◽  
Biogeographic Analysis

Using track analysis and cladistic biogeography, we identified areas of endemism of hummingbirds in the Andean and Neotropical regions. Our results point out that the current areas of endemism of hummingbirds occur in the Andes, Guiana Shield, the Lesser Antilles, western Central and North America and the Chiapas Highlands. The cladistic biogeographic analysis suggests a hummingbird distribution shaped mainly by dispersal events.

Orosensory Perception, Speech Production, and Deafness

1973 ◽  
Vol 16 (2) ◽  
pp. 257-266 ◽  
Author(s):  
Milo E. Bishop ◽  
Robert L. Ringel ◽  
Arthur S. House
Keyword(s):  
High School ◽  
Speech Production ◽  
Poor Performance ◽  
Normal Hearing ◽  
The Other ◽  
Functional Disorders ◽  
Form Discrimination ◽  
School Subjects ◽  
Oral Form ◽  
Similarities And Differences

The oral form-discrimination abilities of 18 orally educated and oriented deaf high school subjects were determined and compared to those of manually educated and oriented deaf subjects and normal-hearing subjects. The similarities and differences among the responses of the three groups were discussed and then compared to responses elicited from subjects with functional disorders of articulation. In general, the discrimination scores separated the manual deaf from the other two groups, particularly when differences in form shapes were involved in the test. The implications of the results for theories relating orosensory-discrimination abilities are discussed. It is postulated that, while a failure in oroperceptual functioning may lead to disorders of articulation, a failure to use the oral mechanism for speech activities, even in persons with normal orosensory capabilities, may result in poor performance on oroperceptual tasks.

Tourists’ and Residents’ Impressions of A Heritage Tourism Site: The Case of Kampong Taman Sari, Indonesia

2014 ◽  
Vol 8 (3) ◽  
pp. 181 ◽  
Author(s):  
Jenny Ernawati ◽  
Gary T. Moore
Keyword(s):  
Heritage Tourism ◽  
Semantic Differential ◽  
The Other ◽  
Measuring Instrument ◽  
Built Heritage ◽  
Other Hand ◽  
Similarities And Differences

The interface between tourism and built heritage is complicated because much built heritage is located in the middle of living communities. Questions arise about how to achieve a balance between the expectations of tourists and the community. To study this question, this paper reports on tourists’ and residents’ impressions of an international heritage tourism site, the Kampong Taman Sari in Indonesia. Using a linear-numeric semantic differential as the measuring instrument and nine consensus photographs of the site as stimuli, the study investigated similarities and differences in impressions between three groups: tourists (international and domestic) and residents. Three principal dimensions were found to underlie impressions of the site: Attractiveness, Organisation, and Novelty. Significant differences were found among all three groups in their impressions of Attractiveness. In terms of impressions of the Organisation of the site, international and domestic tourists have similar impressions but these differ significantly from the impressions of residents. On the other hand, domestic tourists and residents have similar impressions of the Novelty of the site, which is evaluated differently by international tourists.

scholarly journals The immunological characterization of several human ribonucleases by using primary binding tests

1977 ◽  
Vol 163 (3) ◽  
pp. 419-426 ◽  
Author(s):  
E A Neuwelt ◽  
M Schmukler ◽  
M S Niziak ◽  
P B Jewett ◽  
C C Levy
Keyword(s):  
Human Plasma ◽  
Cross Reaction ◽  
The Other ◽  
Human Pancreas ◽  
Human Tissues ◽  
Antigenic Difference ◽  
Immunological Characterization ◽  
Similarities And Differences

RNAases (ribonucleases), purified from four human tissues, as well as bovine pancreatic RNAase (RNAase A), were studied by immunodiffusion methods and by two different primary binding tests. The enzymes fell into two groups immunologically, those purified from plasma and pancreas in one and those from spleen and liver in the other. No antigenic cross-reaction between the two groups was detected by any of the immunoassays used. There was a slight antigenic cross-reaction between the human and bovine pancreatic RNAases. The liver and spleen RNAases were immunologically identical by all criteria used, whereas a small but consistent antigenic difference between the human plasma and human pancreas enzymes was detected. The significance of this difference between the human plasma and pancreas RNAases is discussed in relation to similarities and differences in their properties.

Biogeography after Burbidge

1998 ◽  
Vol 11 (2) ◽  
pp. 231 ◽  
Author(s):  
Pauline Y. Ladiges
Keyword(s):  
Geographic Distribution ◽  
Analytical Methods ◽  
New Method ◽  
Memorial Lecture ◽  
General Area ◽  
Australian Flora ◽  
Cladistic Biogeography

The contributions of Nancy Burbidge and Leon Croizat to an understanding of Australian phytogeography are summarised and compared. The focus of systematics on relationship and nodes of cladograms is outlined as the basis of modern cladistic biogeography. It is argued that development of explicit analytical methods for the discovery of general area cladograms has been hindered by lack of recognition of geographic paralogy—evidenced by duplication or overlap in geographic distribution of taxa related at a node in a cladogram. A new method, subtree analysis, which recognises and eliminates paralagous nodes, and often inconsistencies, is illustrated with examples from the Australian flora. General patterns are congruent with conclusions of Burbidge and Croizat. Paper Presented as the 1996 Nancy Burbridge Memorial Lecture.

scholarly journals Application and Evaluation of the China Meteorological Assimilation Driving Datasets for the SWAT Model (CMADS) in Poorly Gauged Regions in Western China

Water ◽  
2019 ◽  
Vol 11 (10) ◽  
pp. 2171 ◽  
Author(s):  
Xianyong Meng ◽  
Xuesong Zhang ◽  
Mingxiang Yang ◽  
Hao Wang ◽  
Ji Chen ◽  
...  
Keyword(s):  
East Asia ◽  
Assessment Tool ◽  
Swat Model ◽  
Spatial Differentiation ◽  
The Other ◽  
Western China ◽  
Surface Processes ◽  
Human Cognition ◽  
Heihe River ◽  
Observation Data

The temporal and spatial differentiation of the underlying surface in East Asia is complex. Due to a lack of meteorological observation data, human cognition and understanding of the surface processes (runoff, snowmelt, soil moisture, water production, etc.) in the area have been greatly limited. With the Heihe River Basin, a poorly gauged region in the cold region of Western China, selected as the study area, three meteorological datasets are evaluated for their suitability to drive the Soil and Water Assessment Tool (SWAT): China Meteorological Assimilation Driving Datasets for the SWAT model (CMADS), Climate Forecast System Reanalysis (CFSR), and Traditional Weather Station (TWS). Resultingly, (1) the runoff output of CMADS + SWAT mode is generally better than that of the other two modes (CFSR + SWAT and TWS + SWAT) and the monthly and daily Nash–Sutcliffe efficiency ranges of the CMADS + SWAT mode are 0.75–0.95 and 0.58–0.77, respectively; (2) the CMADS + SWAT and TWS + SWAT results were fairly similar to the actual data (especially for precipitation and evaporation), with the results produced by CMADS + SWAT lower than those produced by TWS + SWAT; (3) the CMADS + SWAT mode has a greater ability to reproduce water balance than the other two modes. Overestimation of CFSR precipitation results in greater error impact on the uncertainty output of the model, whereas the performances of CMADS and TWS are more similar. This study addresses the gap in the study of surface processes by CMADS users in Western China and provides an important scientific basis for analyzing poorly gauged regions in East Asia.

scholarly journals Schaalvergroting in het syntactische alternantieonderzoek : Een nieuwe analyse van het presentatieve er met automatisch gegenereerde predictoren

2020 ◽  
Vol 25 (1) ◽  
pp. 101-123
Author(s):  
Dirk Speelman ◽  
Stefan Grondelaers ◽  
Benedikt Szmrecsanyi ◽  
Kris Heylen
Keyword(s):  
The Other ◽  
Manual Annotation ◽  
Distributional Analysis ◽  
Syntactic Variation ◽  
Semantic Class ◽  
Semantic Classes ◽  
Reference Corpus ◽  
Lexical Collocations ◽  
The Subject ◽  
Pragmatic Factor

Abstract In this paper, we revisit earlier analyses of the distribution of er ‘there’ in adjunct-initial sentences to demonstrate the merits of computational upscaling in syntactic variation research. Contrary to previous studies, in which major semantic and pragmatic predictors (viz. adjunct type, adjunct concreteness, and verb specificity) had to be coded manually, the present study operationalizes these predictors on the basis of distributional analysis: instead of hand-coding for specific semantic classes, we determine the semantic class of the adjunct, verb, and subject automatically by clustering the lexemes in those slots on the basis of their ‘semantic passport’ (as established on the basis of their distributional behaviour in a reference corpus). These clusters are subsequently interpreted as proxies for semantic classes. In addition, the pragmatic factor ‘subject predictability’ is operationalized automatically on the basis of collocational attraction measures, as well as distributional similarity between the other slots and the subject. We demonstrate that the distribution of er can be modelled equally successfully with the automated approach as in manual annotation-based studies. Crucially, the new method replicates our earlier findings that the Netherlandic data are easier to model than the Belgian data, and that lexical collocations play a bigger role in the Netherlandic than in the Belgian data. On a methodological level, the proposed automatization opens up a window of opportunities. Most important is its scalability: it allows for a larger gamut of alternations that can be investigated in one study, and for much larger datasets to represent each alternation.

scholarly journals Guardianship and Parental Connections: Connections and Departures in Jeremy Bentham’s Account

2011 ◽  
Author(s):  
Brian E Cox
Keyword(s):  
Present Article ◽  
Legal Status ◽  
The Other ◽  
Previous Article ◽  
Dual Roles ◽  
Other Hand ◽  
Special Relations ◽  
Similarities And Differences ◽  
Personal Perspectives ◽  
The One

This article follows an earlier assessment of Bentham’s views on guardianship 1 that touched on but did not explore connections or departures between guardian-ward and parent-offspring relations, about which Bentham was not as precise as he might have been. Further, he added complexity to the issue by describing parents as occupying dual roles: guardians and ‘masters’ (employers) of their own offspring. These relations are now considered, on the one hand, in the wider context of ‘special relations’ and ‘duties’ and, on the other hand, alongside some appreciation of Bentham’s personal perspectives. However, the main object of the present article is to assess similarities and differences between parents and guardians in legal, status and functional terms. It uses the profile of guardian-ward relations provided by the previous article 2 as a benchmark. The article concludes by affirming that ‘being a parent’ and ‘being a guardian’ have quite different meanings.

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