scholarly journals Seasonal changes in platform use by adult farmbred silver foxes (Vulpes Vulpes)

1996 ◽  
Vol 5 (1) ◽  
pp. 3-15 ◽  
Author(s):  
Hannu Korhonen ◽  
Paavo Niemelä
Keyword(s):  
Seasonal Changes ◽  
Vulpes Vulpes ◽  
Seasonal Pattern ◽  
European Convention ◽  
Winter Period ◽  
Farm Work ◽  
Late Autumn ◽  
Video Recordings ◽  
Circadian Distribution ◽  
One Year

Seasonal changes in platform use (Wooden U-type platform, area 3090 cm2) were studied during one year in adult farmbred silver foxes (Vulpes vulpes) by daytime scan sampling observations and 24-h video recordings. Platform use was found to be lowest during the coldest part of the year (winter, late autumn) and highest in mid-summer (July). The seasonal pattern in platform use obtained by the scan samplings was in agreement with that obtained by video recordings. Platform use was sex-related being significantly (p < 0.001) higher in females than males. Circadian distribution of platform use was rather similar for both sexes. Hourly use was highest from 4 to 5 a.m. and lowest at about 8-9 a.m. when farm work started. Platforms were mostly used for sleeping and the least for jumping. The animals’ needs for rest, observation and seclusion required by the European Convention were met fairly well by the presently studied platform type. This is demonstrated by of its rather high amount of general use, and because it functioned appropriately as a place for observation and rest. Based on the present data, wooden U-type platforms can be recommended for practical farming purposes, particularly outside the winter period.

Study of the nutritional dynamic in olive leaves: periods of analytical stability

2017 ◽  
Vol 7 ◽  
Author(s):  
Juana Nieto ◽  
Antonio García-Fuentes ◽  
Llenalia M. García ◽  
Emilia Fernández-Ondoño
Keyword(s):  
Nutritional Deficiencies ◽  
Winter Period ◽  
Olive Leaves ◽  
Nitrogen And Phosphorus ◽  
Analytical Stability ◽  
Opposite Behavior ◽  
Zinc Concentrations ◽  
Calcium Magnesium ◽  
Olive Trees ◽  
One Year

The aim of this study was to establish the evolution curves of macro- and micro-nutrients in olive leaves and the periods of time in which they are statistically stable and can be considered suitable for a nutritional diagnosis. The study was carried out in two farms of the province of Jaén (Andalucia, Southern Spain), with olive trees of the Picual variety, under an irrigation regime and no nutritional deficiencies over the entire year. The evolution curves of each nutrient had great similarities when comparing between farms and between periods. Only in some periods the farm “Poco Humo” had higher concentrations, probably due to the most favorable edaphic characteristics of this farm. Nitrogen and phosphorus showed minimum concentrations when the leaves were young and when they were one year old, and maximum concentrations during the winter. Potassium and boron showed higher concentrations when the leaves were young, and the concentrations decreased throughout the first year of life. Concentrations of calcium, magnesium and manganese had the opposite behavior: these accumulated in leaf until reaching maximum values in winter and then remained stable, with some oscillations but without statistically significant differences. No changes were observed in the zinc concentrations in the sampled periods. Periods of at least two consecutive months without statistically significant differences were found during the winter period for all elements except nitrogen. Analytical stability was observed from the second fortnight of May till the first fortnight of August for all elements except phosphorus and boron.

scholarly journals Reproductive phenology in a riparian rainforest in the south of Santa Catarina state, Brazil

2013 ◽  
Vol 85 (4) ◽  
pp. 1449-1460 ◽  
Author(s):  
MAINARA F. CASCAES ◽  
VANILDE CITADINI-ZANETTE ◽  
BIRGIT HARTER-MARQUES
Keyword(s):  
Plant Species ◽  
Resource Availability ◽  
Forest Ecosystems ◽  
Seasonal Pattern ◽  
Riparian Forests ◽  
Reproductive Phenology ◽  
Environmental Restoration ◽  
Fruit Availability ◽  
One Year ◽  
Riparian Plant

Phenological studies assist in forest ecosystems comprehension and evaluation of resource availability for wildlife, as well as in improving the understanding of relationships between plants and their pollinators and dispersers. This study aims to describe the reproductive phenophases of riparian plant species and correlate them with climatic variables. The reproductive phenology was analyzed biweekly throughout one year, recording the absence or presence of flowers/fruits. The flowering phenophase occurred throughout the year, with an increase in number of species in blossom in October, November, and December. The flowering peak of the community was observed in November. The fruiting phenophase also occurred throughout the year and showed an increase of species fruiting in June with a slight decrease in August and September. The data obtained in this study, when compared with other studies in different Atlantic Rainforest areas, indicates a seasonal pattern for the flowering phenophase and a variation in fruit availability throughout the year as well as in the fruiting peaks. Therefore, studies that observe flowering and fruiting events in loco are of main importance because they provide information on reproductive seasons of species for use in environmental restoration projects and thus alleviate the situation of degradation of riparian forests.

scholarly journals 'Necton' suIla - A preliminary agronomic evaluation

1990 ◽  
pp. 157-159
Author(s):  
Hari Krishna ◽  
Peter D. Kemp ◽  
The Late Sally D. Newton
Keyword(s):  
Dry Matter ◽  
Plant Density ◽  
Grazing Intensity ◽  
Grazing Management ◽  
Forage Legume ◽  
High Quality ◽  
Late Autumn ◽  
Agronomic Evaluation ◽  
Hedysarum Coronarium ◽  
One Year

'Necton' sulla (Hedysarum coronarium L.) is a perennial forage legume with potential to provide high quality, non-bloating feed. This trial examined the effect of grazing intensity and frequency on sulla over one year. Annual dry matter yields ranged from 7.4 to 18.0 t/ha. There was no difference in the yield of hard and lax-grazed plots but grazing in late autumn significantly decreased plant density and yield. Keywords 'Necton', sulla, legume, grazing management

scholarly journals Analysis of mammary gland according to results of CMT (California Mastitis Test) and bacteriological findings in secretion

2009 ◽  
Vol 63 (5-6) ◽  
pp. 359-367
Author(s):  
Nazif Varatanovic ◽  
Amela Katica ◽  
Tarik Mutevelic ◽  
Nadzida Mlaco ◽  
Edin Hamzic
Keyword(s):  
Mammary Gland ◽  
Mammary Glands ◽  
Health Condition ◽  
Winter Period ◽  
Mixed Infections ◽  
Milk Samples ◽  
Health Control ◽  
California Mastitis Test ◽  
Causative Agents ◽  
One Year

Health control of the mammary gland was conducted comparing results of CMT (California Mastitis Test) and bacteriological findings of milk samples during one year. A total of 3863 secretion samples of mammary glands were collected. There were 85.3% matches for CMT and bacteriological findings. The most frequently isolated causative agents were: staphylococci (52.4%), streptococcus bacteria (23.5%), mixed infections (13.1%), and enterobacteria (10.3%). Secretions disorder and inflammations of mammary gland are most common for the warm period of the year, and very rare for the winter period. With permanent use of these two methods it is possible to obtain satisfactory results in order to get better milk production and health condition of the mammary gland. .

scholarly journals Reef fish community structure on three islands of Itaipu, Southeast Brazil

2008 ◽  
Vol 6 (2) ◽  
pp. 267-274 ◽  
Author(s):  
José Policarpo de Mendonça-Neto ◽  
Cassiano Monteiro-Neto ◽  
Luiz Eduardo Moraes
Keyword(s):  
Environmental Gradients ◽  
Seasonal Pattern ◽  
Reef Fishes ◽  
Habitat Characteristics ◽  
Brazilian Coast ◽  
Rocky Reef ◽  
Fish Community Structure ◽  
Rocky Reefs ◽  
Chain Link ◽  
One Year

We provide here the first assessment of the composition, abundance and distribution of rocky reef fishes of Itaipu Sound, Rio de Janeiro, off the southeastern Brazilian coast. Monthly visual censuses, benthic quadrats and chain link transects were conducted over one year on rocky reefs at three islands (Menina, Mãe and Pai). A total of 2466 individual fish, belonging to 29 families and 42 species were recorded. The most abundant fish species were Parablennius pilicornis, Haemulon steindachneri, Orthopristis ruber and Diplodus argenteus. Sheltered and complex habitats showed the most abundant and diverse fish populations. There was a major significant separation between sampling sites and a secondary seasonal pattern. The three sites showed similar fish communities with locally structured environmental gradients according to their inherent habitat characteristics.

Reproduction, Growth and Mortality of Venus Striatula (Da Costa) in Kames Bay, Millport

1961 ◽  
Vol 41 (1) ◽  
pp. 191-215 ◽  
Author(s):  
Alan D. Ansell
Keyword(s):  
Sex Ratio ◽  
Microscopic Examination ◽  
Seasonal Changes ◽  
One Year

Seasonal changes in the gonads of both sexes of Venus striatula were followed by macroscopic and microscopic examination, in over 700 animals from a population consisting mainly of one year-group. The sex ratio was approximately equal, and no hermaphrodite adults were found.

scholarly journals Fish assemblages in a tidal flat

2003 ◽  
Vol 46 (2) ◽  
pp. 233-242 ◽  
Author(s):  
Ana Lúcia Vendel ◽  
Sabine Granado Lopes ◽  
César Santos ◽  
Henry Louis Spach
Keyword(s):  
Cluster Analysis ◽  
Community Structure ◽  
Tidal Flat ◽  
Seasonal Changes ◽  
Dominant Species ◽  
Fish Assemblages ◽  
Seasonal Pattern ◽  
Abundant Species ◽  
Structure Index ◽  
Total Capture

Studies were carried out on fish assemblages in a tidal flat. Samples were obtained monthly at low tide of the half moon in the tidal flat of Paranaguá Bay, Brazil, with two seine nets, one with a 1 mm mesh, 30 m in length and 3 m in height and another with a 10 mm mesh, 65 m in length and 2 m in height. A total of 8,890 fish were captured, comprising 24 families and 53 species. The most abundant species were Harengula clupeola and Atherinella brasiliensis, which represented 63.4% of the total, capture. A seasonal tendency was observed in the abundance of fishes, with less fishes being captured during winter and part of spring. The number of species showed a seasonal pattern, with the gradual decrease through winter and a marked increase in summer. The community structure index indicated seasonal changes in the assemblage. The faunistic similarities between months separated the 12 months into four major groups. The seasonal pattern was apparent in the numerically dominant species and the Cluster Analysis revealed five main groups.

Health, growth and development of pre-school children in Newcastle upon Tyne

1979 ◽  
Vol 11 (4) ◽  
pp. 411-424
Author(s):  
H. Mary Fellowes ◽  
Catherine A. Hytten ◽  
W.Z. Billewicz ◽  
A.M. Thomson
Keyword(s):  
Growth Rates ◽  
Seasonal Changes ◽  
Growth Patterns ◽  
Transient Effect ◽  
Normal Children ◽  
Average Growth ◽  
Respiratory Illnesses ◽  
Developmental Test ◽  
One Year ◽  
Newcastle Upon Tyne

SummaryOne hunderd and forty 'normal' children aged 0—5 years, selected from three large general medical practices to represent a wide socioeconomic range, were seen monthly for periods of at least one year. Average growth patterns, previously shown to be related to the energy value of diets, conformed to British standards. Height and weight were not significantly related to socioeconomic status, maternal 'efficiency', number of sibs nor place in family. About half the children aged 0.5 years or less changed growht 'channels', falling to 0.4% in children aged 2 years or more. Respiratory illnesses showed seasonal changes, but growth rates did not, and there was no evidence that illness of any kind or severity had more than a transient effect on growth rates. Developmental test scores were not found to be related to growth rates. Girls tended to have higher scores than boys. Children from non-manual families and those with sїbs at least 5 years older scored more highly in tests of language than those in other types of family.

Effect of planting time and plant spacing on maize production on the Swan Coastal Plain of Western Australia

1974 ◽  
Vol 14 (69) ◽  
pp. 547 ◽  
Author(s):  
EAN Greenwood ◽  
CAP Boundy ◽  
ESde Boer ◽  
TR Power
Keyword(s):  
Coastal Plain ◽  
Seasonal Pattern ◽  
Predictor Variable ◽  
Seeding Rate ◽  
Maize Production ◽  
Planting Time ◽  
Swan Coastal Plain ◽  
High Production ◽  
One Year ◽  
Dough Stage

Maize was sown at 7.4, 12.4 and 17.3 seeds m-2 every 4 weeks for 12 months. The higher seeding rates gave similar yields; the low seeding rate frequently reduced yield. Dry matter yields of forage at the soft dough stage ranged from 200 g m-2 for crops planted in June to about 1400 g m-2 for crops planted between September and January. Grain yields followed a seasonal pattern similar to forage yields, with oven dry weights exceeding 800 g m-2 for crops sown between August and January inclusive. Crops sown in winter gave low yields because there were few surviving plants, few grains per cob and the grains were small. Crops sown later than February were killed by frost before maturity. Closer spacing resulted in small cobs with a few and smaller grains. Phenological phase lengths varied with planting time and could be estimated from the inverse of mean temperatures above a critical base as the predictor variable. It is concluded that the planting season for high production of maize on the Swan Coastal Plain extends from August to January and that two crops for silage, or one for grain and one for silage, could be grown in one year.

Seasonal Changes in the Germination Responses of Buried Witchgrass (Panicum capillare) Seeds

Weed Science ◽  
1986 ◽  
Vol 34 (1) ◽  
pp. 22-24 ◽  
Author(s):  
Jerry M. Baskin ◽  
Carol C. Baskin
Keyword(s):  
Seasonal Changes ◽  
Late Summer ◽  
Late Spring ◽  
Seasonal Temperature ◽  
Temperature Changes ◽  
Late Autumn ◽  
Buried Seeds ◽  
Autumn And Winter

Buried seeds of witchgrass (Panicum capillare L., # PANCA) exposed to natural seasonal temperature changes in Lexington, KY, for 0 to 35 months exhibited annual dormancy/nondormancy cycles. Seeds were dormant at maturity in early October. During burial in late autumn and winter, fresh seeds and those that had been buried for 1 and 2 years became nondormant. Nondormant seeds germinated from 76 to 100% in light at daily thermoperiods of 15/6, 20/10, 25/15, 30/15, and 35/20 C, while in darkness they germinated from 1 to 24%. In late spring, seeds lost the ability to germinate in darkness, and by late summer 63 to 100% of them had lost the ability to germinate in light. As seeds became nondormant, they germinated (in light) at high (35/20, 30/15 C) and then at lower (25/15, 20/10, and 15/6 C) temperatures. As seeds reentered dormancy, they lost the ability to germinate (in light) at 15/6 C and at higher thermoperiods 2 to 3 months later.

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