Feeding patterns of school mackerel (Scomberomorus queenslandicus) and spotted mackerel (S. munroi) in Queensland east-coast waters

1997 ◽  
Vol 48 (7) ◽  
pp. 565 ◽  
Author(s):  
Gavin A. Begg ◽  
Glen A. Hopper
Keyword(s):  
East Coast ◽  
Spatial Separation ◽  
Dietary Overlap ◽  
Recreational Fisheries ◽  
Feeding Patterns ◽  
Inshore Waters ◽  
Temporal And Spatial ◽  
Species Being ◽  
Prey Items

Seasonal feeding and dietary overlap patterns between school mackerel (Scomberomorus queenslandicus) and spotted mackerel (S. munroi) in Queensland east-coast waters, Australia (16˚S to 28˚S), were examined from June 1992 to January 1995. School mackerel have a more diverse diet than spotted mackerel, with the diets of both species being dominated by pilchards, anchovies and herring. Dietary overlap between school and spotted mackerel appeared to be limited owing to temporal and spatial separation. The seasonal availability of certain prey items may play an important role in attracting mackerel into inshore waters where they become accessible to the commercial and recreational fisheries.

Dependence of keV x‐ray generation on the temporal and spatial separation of two KrF laser pulses

1994 ◽  
Vol 76 (9) ◽  
pp. 5047-5053 ◽  
Author(s):  
R. Bobkowski ◽  
J. N. Broughton ◽  
R. Fedosejevs ◽  
R. J. Willis ◽  
M. R. Cervenan
Keyword(s):  
Spatial Separation ◽  
Laser Pulses ◽  
X Ray ◽  
Krf Laser ◽  
Temporal And Spatial

The productivity and carbohydrate economy of a developing stand of Rubus idaeus

1982 ◽  
Vol 60 (12) ◽  
pp. 2697-2703 ◽  
Author(s):  
Gordon G. Whitney
Keyword(s):  
Spatial Separation ◽  
Fruit Production ◽  
Rubus Idaeus ◽  
The Self ◽  
Stand Development ◽  
Matter Production ◽  
Predictable Pattern ◽  
Allocation Patterns ◽  
Temporal And Spatial ◽  
Development Proceeds

The dry matter production and resource allocation patterns of a series of 1- to 5-year-old stands of Rubus idaeus are described. Stand development proceeds along a predictable pattern of development from the building to the self-thinning phases. The building phase is characterized by an active period of vegetative propagation, insuring almost full occupancy of the site at the end of the 2nd to 3rd years. It is suggested that the shift from clonal growth to fruit production in the self-thinning phase represents an adaptive response to a deteriorating environment. Competition for the available assimilates between the 1st-year cane, the primocane, and the 2nd-year cane, the floricane, is minimized by the temporal and spatial separation of their activities.

Patterns of human–crocodile conflict in Queensland: a review of historical estuarine crocodile (Crocodylus porosus) management

2017 ◽  
Vol 44 (4) ◽  
pp. 281 ◽  
Author(s):  
M. L. Brien ◽  
C. M. Gienger ◽  
C. A. Browne ◽  
M. A. Read ◽  
M. J. Joyce ◽  
...  
Keyword(s):  
Spatial Patterns ◽  
Public Safety ◽  
Linear Models ◽  
East Coast ◽  
Adult Males ◽  
Wet Season ◽  
Temporal And Spatial Patterns ◽  
Crocodylus Porosus ◽  
Temporal And Spatial ◽  
The Government

Context In Queensland, the management of estuarine crocodiles (Crocodylus porosus) by the government is important for ensuring public safety, especially along the populated east coast, where there is a large human population. Aims The present study aimed to determine historical, temporal and spatial patterns of human–crocodile conflict in Queensland. Methods The study used Queensland Government records of estuarine crocodile attacks (1971–2015), sightings by the general public (2003–2015), and removals and relocations for management purposes (1985–2015) to develop General Linear Models describing historical, temporal and spatial patterns. Key results The highest number of attacks, sightings, removals and relocations occurred along the populated east coast between Townsville and the Daintree during wet season months (November–February). There have been 35 crocodile attacks in Queensland since 1971 (total 0.8 per year; fatal 0.3 per year), mostly involving local people or regular visitors (77.1%), specifically adult males (71.4%; mean age 44). There has been an increase in the rate of crocodile attacks over time, with an average of 1.3 per year since 1996, most of which were non-fatal (84%). The number of crocodile sightings has been increasing annually (with a mean of 348 per year since 2011), while the number of crocodiles removed or relocated for management purposes (n = 608) has fluctuating widely each year (range 1–57). Conclusions The level of human–crocodile conflict in Queensland is increasing, and this is likely to be a consequence of increasing human and crocodile populations. While conflict is highest during the wet season, estuarine crocodiles pose a threat to public safety year round. Implications With the increase in conflict, the ongoing management of estuarine crocodiles, through targeted removals in and around areas of higher human habitation and through education, is essential for ensuring public safety into the future.

scholarly journals A Draft Genome of the Ginger Species Alpinia nigra and New Insights into the Genetic Basis of Flexistyly

Genes ◽  
2021 ◽  
Vol 12 (9) ◽  
pp. 1297
Author(s):  
Surabhi Ranavat ◽  
Hannes Becher ◽  
Mark F. Newman ◽  
Vinita Gowda ◽  
Alex D. Twyford
Keyword(s):  
Genetic Basis ◽  
De Novo ◽  
Draft Genome ◽  
Spatial Separation ◽  
Genomic Region ◽  
Alpinia Nigra ◽  
Floral Phenotype ◽  
Temporal And Spatial ◽  
Candidate Regions ◽  
High Depth

Angiosperms possess various strategies to ensure reproductive success, such as stylar polymorphisms that encourage outcrossing. Here, we investigate the genetic basis of one such dimorphism that combines both temporal and spatial separation of sexual function, termed flexistyly. It is a floral strategy characterised by the presence of two morphs that differ in the timing of stylar movement. We performed a de novo assembly of the genome of Alpinia nigra using high-depth genomic sequencing. We then used Pool-seq to identify candidate regions for flexistyly based on allele frequency or coverage differences between pools of anaflexistylous and cataflexistylous morphs. The final genome assembly size was 2 Gb, and showed no evidence of recent polyploidy. The Pool-seq did not reveal large regions with high FST values, suggesting large structural chromosomal polymorphisms are unlikely to underlie differences between morphs. Similarly, no region had a 1:2 mapping depth ratio which would be indicative of hemizygosity. We propose that flexistyly is governed by a small genomic region that might be difficult to detect with Pool-seq, or a complex genomic region that proved difficult to assemble. Our genome will be a valuable resource for future studies of gingers, and provides the first steps towards characterising this complex floral phenotype.

scholarly journals Communication floods – Emails in scholarly communication

2020 ◽  
Vol 9 (3) ◽  
pp. 367-393
Author(s):  
Corinna Lüthje ◽  
Franziska Thiele
Keyword(s):  
Scientific Community ◽  
Information Overload ◽  
Qualitative Interviews ◽  
Scholarly Communication ◽  
Spatial Separation ◽  
Scientific Field ◽  
Mobile Media ◽  
German Speaking ◽  
Temporal And Spatial

The aim of this study is to display the current email usage among academics and the email‘s influence on the field of science by analyzing qualitative interviews and media diaries with 55 German-speaking academics. Emails pose a particular challenge for separating work and personal spheres. Mobile media such as tablets and smartphones reinforce the penetrating effects of emails. Our results show that scholars hardly engage in a temporal and spatial separation of the spheres when accessing work emails. This is one of the reasons why emails contribute to a perception of information overload and stress. While emails cause problems in many fields, we assume that it is particularly pronounced in the scientific field. In order to raise awareness for this topic and to facilitate the handling of emails in the scientific community, we recommend introducing email workshops and regulations at universities.

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