Effect of Habitat Persistence on the Relationship between Geographic Distribution and Local Abundance

Oikos ◽  
1991 ◽  
Vol 61 (3) ◽  
pp. 431 ◽  
Author(s):  
Vojtěch Novotný ◽  
Vojtech Novotny
Keyword(s):  
Geographic Distribution ◽  
Local Abundance ◽  
Habitat Persistence ◽  
The Relationship

scholarly journals Revision of the costata-group of Alona s. lato (Cladocera: Anomopoda: Chydoridae) confirms its generic status

2016 ◽  
Author(s):  
Artem Y. Sinev ◽  
Henri J. Dumont
Keyword(s):  
Geographic Distribution ◽  
New Genus ◽  
Habitat Type ◽  
Major Clade ◽  
Trunk Limbs ◽  
Relationship Of ◽  
The Relationship ◽  
Basal Spine ◽  
Head Pores ◽  
Lateral Head

By taking Flavalona gen. nov. out of Alona s.l. (Cladocera: Anomopoda: Chydoridae), the last major clade has now been removed from this polyphyletic assemblage. Flavalona gen. nov. is a monophylum defined by having three, rarely two connected head pores and slit-shaped, rarely rounded lateral head pores. Postabdomen rather long, distally narrowed, with robust marginal denticles and weakly developed lateral fascicles of setules. End-claw weakly curved and with short basal spine. Male postabdomen with gonopores opening at the end of a penis-like outgrowth. Trunk limbs: exopodite of P2 with seta; inner portion of P4 with flaming-torch shaped setae; P5 with filter plate of three setae; P6 a large simple lobe. The relationship of the new genus with other Aloninae remains to be determined. A key to the 11 species of the genus is provided and a discussion of their geographic distribution and habitat type is given.

Note preliminaire sur le Bathonien inferieur du Bugey (Jura meridional)

1964 ◽  
Vol S7-VI (4) ◽  
pp. 529-534
Author(s):  
Charles Mangold ◽  
R. Enay ◽  
Pierre Dominjon
Keyword(s):  
Geographic Distribution ◽  
Middle Jurassic ◽  
Western Europe ◽  
Jura Mountains ◽  
Southern England ◽  
Upper Bajocian ◽  
Relationship Of ◽  
The Relationship ◽  
Lower Bathonian

Abstract The recent discovery of lower Bathonian (upper middle Jurassic) ammonites at several places in the Bugey region of the southern Jura mountains of eastern France resolves the problem of the relationship of the Bajocian to the Bathonian in this key region. Fauna of upper Bajocian (lower middle Jurassic) and middle and upper Bathonian had long been known but lower Bathonian was unknown. One bed is particularly rich in a varied fauna of ammonites, pelecypods, gastropods, and echinoderms in a remarkable state of preservation. The faunal association shows the coexistence of the forms of the Zigzag beds of England and the Wuerttembergicus beds of Germany, thus confirming the homology of these two horizons. The geographic distribution of type genera of the lower Bathonian in western Europe permits the identification of two faunal domains overlapping in Lorraine and the northern Jura mountains as well as the Bugey region. The genus Zigzagiceras extends from southern England through Switzerland, the Jura mountains, and the Basses-Alpes to Sicily, and also has been found in Portugal. The western limit of the species Parkinsonia (Oraniceras) wuerttembergica occurs in Germany, Lorraine, the Jura mountains, and Sicily. It appears that the genera Morphoceras and Ebrayiceras may have an even greater distribution.

On the Relationship between Range Size and Local Abundance: Back to Basics

Oikos ◽  
1997 ◽  
Vol 78 (1) ◽  
pp. 183 ◽  
Author(s):  
R. D. Holt ◽  
J. H. Lawton ◽  
K. J. Gaston ◽  
T. M. Blackburn
Keyword(s):  
Range Size ◽  
Local Abundance ◽  
The Relationship

scholarly journals Climate and local abundance in freshwater fishes

2016 ◽  
Vol 3 (6) ◽  
pp. 160093 ◽  
Author(s):  
Jason H. Knouft ◽  
Melissa M. Anthony
Keyword(s):  
Freshwater Fishes ◽  
Climatic Conditions ◽  
Temperature And Precipitation ◽  
Fundamental Goal ◽  
Local Abundance ◽  
Population Sizes ◽  
Geographical Position ◽  
Primary Focus ◽  
The Relationship ◽  
Geographical Space

Identifying factors regulating variation in numbers of individuals among populations across a species' distribution is a fundamental goal in ecology. A common prediction, often referred to as the abundant-centre hypothesis, suggests that abundance is highest near the centre of a species' range. However, because of the primary focus on the geographical position of a population, this framework provides little insight into the environmental factors regulating local abundance. While range-wide variation in population abundance associated with environmental conditions has been investigated in terrestrial species, the relationship between climate and local abundance in freshwater taxa across species' distributions is not well understood. We used GIS-based temperature and precipitation data to determine the relationships between climatic conditions and range-wide variation in local abundance for 19 species of North American freshwater fishes. Climate predicted a portion of the variation in local abundance among populations for 18 species. In addition, the relationship between climatic conditions and local abundance varied among species, which is expected as lineages partition the environment across geographical space. The influence of local habitat quality on species persistence is well documented; however, our results also indicate the importance of climate in regulating population sizes across a species geographical range, even in aquatic taxa.

scholarly journals Autokorelasi Spasial Demam Berdarah Dengue di Kota Tasikmalaya

2021 ◽  
Vol 13 (2) ◽  
pp. 113-126
Author(s):  
Hubullah Fuadzy ◽  
Heni Prasetyowati ◽  
Elis Siti Marliyanih ◽  
Asep Hendra ◽  
Abdulah Mubarok Dadang
Keyword(s):  
High Risk ◽  
Spatial Autocorrelation ◽  
Incidence Rate ◽  
Geographic Distribution ◽  
Dengue Infection ◽  
Index Test ◽  
Map Data ◽  
The Village ◽  
The Relationship ◽  
Urban Villages

Abstract. Tasikmalaya city is a high endemic dengue area which contributes to the high number ofdengue cases in West Java province. This study aims to analyze the geographic distribution patternof dengue infection at the village level and identify high-risk urban villages in Tasikmalaya City. Thisstudy analyzed the surveillance data of dengue cases in 2016–2020 which was routinely managed bythe Tasikmalaya City Health Office. Variables analyzed included date, patient’s name and address(villages). The map data in the form of a shape file (shp.) were obtained from BPS in 2019. The spatialautocorrelation analysis uses two approaches, (the global Moran Index and LISA). The results showedthat DHF cases in the Tasikmalaya city tend to increase in the last 5 years (2016–2020). The highestnumber of annual and monthly dengue cases occurred in 2020, (1,744 cases and 307 cases) withthe incidence rate peaked at 262.6561 per 100,000 population. The global Moran index test using asignificance level of 5 showed that there is a spatial autocorrelation between adjacent sub-districts ofdengue cases in Tasikmalaya city every year for the last 5 years (2016–2020, and cumulative). Thevalue of the global moran index (I) shows a positive correlation between urban villages to the numberof annual dengue cases for the last 5 years and is cumulative. It can be concluded that there aresimilarities in the characteristics of DHF cases in adjacent villages or the relationship between DHFcases tends to be spatially clustered.

GIS Based Buddhism Manage and Analysis - Set Jiangxi New Building Temples of Sui and Tang Dynasty as Example

2013 ◽  
Vol 726-731 ◽  
pp. 4577-4581
Author(s):  
Ying Xu ◽  
Chao Yang Fang
Keyword(s):  
Spatial Distribution ◽  
Geographic Distribution ◽  
Natural Environment ◽  
Tang Dynasty ◽  
Jiangxi Province ◽  
Gis Technology ◽  
New Thought ◽  
History Data ◽  
The Relationship ◽  
The Temple

The history data contains large spatial-temporal information. Based on the spatialtemporal analysis function of GIS and set the temple as the example, this paper makes research on the geographic distribution of the temples of the sui and tang dynasty, finds out that the spatial distribution is changed from north to south, from west to east in Jiangxi province, points out the relationship between the natural environment and the broadcast of the Buddhism by adding the information like the roads and rivers. At the same time, it also provides a new thought on the using GIS technology in the research of the humanity science.

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