Reproductive performance of the Middle Spotted Woodpecker Dendrocoptes medius around Yasouj city (South Western Iran)
نویسندگان
چکیده
منابع مشابه
habitat evaluation of middle spotted woodpecker (dendrocopos medius) in golestan national park
the evaluation of ecological characteristics of wildlife species has fundamental role in species management, because taking a decision for proper method of management is only possible by characterizing of ecological requirements of a species. in this study, suitable habitat of middle spotted woodpecker was investigated in golestan national park. presence and absence of birds and environmental v...
متن کاملThe carotenoid-based red cap of the Middle Spotted Woodpecker Dendrocopos medius reflects individual quality and territory size
Carotenoid-based plumage ornaments have the potential to signal individual condition and health in many species of birds. However, very little is known about the function of red plumage in woodpeckers. We assessed whether the red cap displayed by both male and female Middle Spotted Woodpeckers reflects individual quality, finding that the size of the cap is sex-dependent, whereas the brightness...
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employees always concern about losing their job , or in other word , losing their income resources. for this purpose, every government requires strong system for covering these concerns. the unemployment insurance (ui) program’s can be used for achieving this goal. in this thesis, we price ui based on the insurance history of employee and the duration of being unemployed. we use the weibull dis...
Reproductive skew in the polygynandrous acorn woodpecker.
Reproductive skew models, which focus on the degree to which reproduction is shared equally (low skew) or monopolized by a single individual (high skew) within groups, have been heralded as providing a general unifying framework for understanding the factors determining social evolution. Here, we test the ability of optimal skew, or "transactional," models, which predict the level of skew neces...
متن کاملNitrate Determination of Vegetables in Varzeghan City, North-western Iran.
Background Vegetables play an important role in human nutrition. Nitrate content is a signifi-cant quality criterion to determine characteristic of vegetables. About 80% of nitrate intake in human is from vegetables and fruits. High dietary intake of nitrate is seen as an undesirable be-cause of its association with gastric cancer and infantile methemoglobinemia. Varzeghan, North¬western Iran i...
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ژورنال
عنوان ژورنال: Ornis Hungarica
سال: 2019
ISSN: 2061-9588
DOI: 10.2478/orhu-2019-0017