نتایج جستجو برای: seasonal changes

تعداد نتایج: 924495  

Journal: :The Japanese Journal of Physiology 1958

Journal: :European Journal of Entomology 2022

The phenology of fungal fruiting has changed in the UK over last 70 years, but whether associated mycophagous insects are able to exploit 'out season' fruit bodies is unknown. This study focused on baits can be used as a proxy examine changes insect communities. Using Agaricus bisporus bait, mushrooms were placed into two separate woodlands monthly from November 2020 July 2021. Megaselia rufipe...

Journal: :Health and Quality of Life Outcomes 2008
Sharon Grimaldi Timo Partonen Samuli I Saarni Arpo Aromaa Jouko Lönnqvist

OBJECTIVE Seasonal changes in mood and behavior are common in a general population, being of relevance to public health. We wanted to analyze whether the HRQoL is associated with the seasonal changes in mood and behavior. Because the shortage of exposure to daylight or artificial bright light has been linked to the occurrence of the seasonal changes, we wanted to know whether illumination indoo...

Journal: :iranian journal of veterinary research 2006
z. i. khan a. hussain m. ashraf s. ermidou-pollet

a study was conducted to determine the copper status of different classes of grazing sheep during twodifferent seasons on a farm located in southern punjab, pakistan. a complete free-choice supplement wasavailable to all animals throughout the year. soil, forage and blood plasma from animals were taken eighttimes during the year (2005) (four times in both summer and winter seasons). soil cu2+ w...

Journal: :تحقیقات دامپزشکی 0
نعیم عرفانی مجد دانشکده دامپزشکی، دانشگاه شهید چمران اهواز مهران درست قول دانشکده علوم، دانشگاه شهید چمران اهواز سعد گورانی نژاد دانشکده دامپزشکی، دانشگاه شهید چمران اهواز

the reproductive activity is influenced by environmental conditions in most animal species. the aim of the present study was to determine the seasonal changes of seminiferous tubules structure and spermatogenic activity in khouzestan arabian rams. for this propose 30 adult rams were reared under closed grazing conditions. four rams were randomly selected in each season and their live weight, te...

2013
Shaina Cahill Erin Tuplin Matthew R. Holahan

Seasonal fluctuations in food availability show a tight association with seasonal variations in body weight and food intake. Seasonal variations in food intake, energy storage, and expenditure appear to be a widespread phenomenon suggesting they may have evolved in anticipation for changing environmental demands. These cycles appear to be driven by changes in external daylength acting on neuroe...

Journal: :تحقیقات جغرافیایی 0
زهره مریانجی گروه جغرافیای طبیعی دانشگاه اصفهان علی اکبر سبزی پرور دانشگاه بوعلی همدان سعید موحدی گروه جغرافیای طبیعی دانشگاه اصفهان سید ابوالفضل مسعودیان گروه جغرافیای طبیعی دانشگاه اصفهان سعید موحدی گروه جغرافیای طبیعی دانشگاه اصفهان حسین عساکره گروه جغرافیا دانشگاه زنجان علی اکبر سبزی پرور

abstract one of the most variability of atmospheric parameter is precipitation, which changes seasonally. it is important to understand exact characteristic of rainfall seasonal variable. therefore, it is unavoidable to study rainfall season in hamedan province, because hameden is one of the important centers of agriculture in iran. in this research, the seasonal variability of rainfall is cons...

Journal: :Proceedings. Biological sciences 2005
Katia Koelle Mercedes Pascual Md Yunus

Many diverse infectious diseases exhibit seasonal dynamics. Seasonality in disease incidence has been attributed to seasonal changes in pathogen transmission rates, resulting from fluctuations in extrinsic climate factors. Multi-strain infectious diseases with strain-specific seasonal signatures, such as cholera, indicate that a range of seasonal patterns in transmission rates is possible in id...

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