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26-498: Siddhatek is a town in the Ahmednagar district of the western part of India located on the Bhima River . The town is known for its temple to Sri Siddhi Vināyaka, the right-tusked incarnation of Ganesha as "Masterful Remover". Legends surrounding the north-facing temple suggest it was built to commemorate the place where Lord Vishnu defeated the evil Asuras Madhu-Kaitabh with

52-479: A few plover species is clearly related to a strongly male-biased adult sex ratio. Those species with male care and polyandry invariably have adult sex ratios with a large surplus of males, which in some cases can reach as high as six males per female. Male-biased adult sex ratios have also been shown to correlate with cooperative breeding in mammals such as alpine marmots and wild canids . This correlation may also apply to cooperatively breeding birds, though

78-654: A majority of them are Protestants . 19°05′53″N 74°43′57″E  /  19.09806°N 74.73250°E  / 19.09806; 74.73250 Sex ratio A sex ratio is the ratio of males to females in a population . As explained by Fisher's principle , for evolutionary reasons this is typically about 1:1 in species which reproduce sexually . However, many species deviate from an even sex ratio, either periodically or permanently. Examples include parthenogenic and androgenetic species, periodically mating organisms such as aphids, some eusocial wasps , bees , ants , and termites . The human sex ratio

104-481: A separate Sangamner district and it can be carved out of existing Ahmednagar district with the inclusion of the northern parts of Ahmednagar district which include Rahata , Rahuri , Shrirampur , Sangamner , Akole , Kopargaon , and Nevasa talukas in the proposed district. Sangamner is geographically at centre for ease of administration and well connected by Roads. Sangamner having its separate Vana Vibhag, Bandhakam Vibhag Office, District Court etc. Ralegaon Siddhi

130-411: Is a field of academic study which seeks to understand the sex ratios observed in nature from an evolutionary perspective. It continues to be heavily influenced by the work of Eric Charnov . He defines five major questions, both for his book and the field in general (slightly abbreviated here): Biological research mostly concerns itself with sex allocation rather than sex ratio, sex allocation denoting

156-513: Is a village in the district that is considered a model of environmental conservation . In the 2011 census Ahmednagar district recorded a population of 4,543,159, roughly equal to the nation of Costa Rica or the US state of Louisiana . This gave it a ranking of 33rd among the districts of India (out of a total of 640). The district had a population density of 266 inhabitants per square kilometre (690/sq mi). Its population growth rate over

182-460: Is of particular interest to anthropologists and demographers. In human societies, sex ratios at birth may be considerably skewed by factors such as the age of mother at birth and by sex-selective abortion and infanticide . Exposure to pesticides and other environmental contaminants may be a significant contributing factor as well. As of 2024, the global sex ratio at birth is estimated at 107 boys to 100 girls (1,000 boys per 934 girls). By old age,

208-642: The government of Eknath Shinde , in honour of Ahilyabai Holkar, the Rani of Indore ; the move faced some criticism. In 2006 the Ministry of Panchayati Raj named Ahmednagar one of the country's 250 most backward districts (out of a total of 640 ). It is one of the twelve districts in Maharashtra currently receiving funds from the Backward Regions Grant Fund Programme (BRGF). The district has

234-546: The 1:1 ratio is the evolutionarily stable strategy (ESS). This ratio has been observed in many species, including the bee Macrotera portalis . A study performed by Danforth observed no significant difference in the number of males and females from the 1:1 sex ratio. Spending equal amounts of resources to produce offspring of either sex is an evolutionarily stable strategy : if the general population deviates from this equilibrium by favoring one sex, one can obtain higher reproductive success with less effort by producing more of

260-560: The Bhandardara dam, Harishchandragad Fort, the Maldhok (Indian Bustard) sanctuary and the Rehkuri sanctuary are some of the places of tourist attraction. Ahmednagar district consists of fourteen talukas. These talukas are Ahmednagar district has twelve Vidhan Sabha constituencies , six in each of the two parliamentary constituencies. The Ahmednagar district is under proposal to be divided and

286-735: The British era Ahmednagar was part of Bombay presidency . Christian missionaries, particularly from the United states of America, arrived in early 19th century when the British parliament allowed proselytizing in areas under the control of the East India Company . In Ahmednagar Christians are a result of the American Marathi mission and the mission of the Church of England 's Society for the Propagation of

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312-672: The Gospel.The first Protestant Christian mission in the district was opened in 1831.The Hume Memorial Congregational Church in Ahmednagar city was built in 1833 by WIDER CHURCH MINISTRIES OF USA later known as American Marathi Mission. Christianity has been Ahmednagar's third-largest religion, found all over the district except in the south-west.It is called as Jerusalem of Maharashtra. Every village has one or more resident families as Christian and every village has its own church for worship. Ahmednagar's Christians are called Marathi Christians and

338-429: The allocation of energy to either sex. Common research themes are the effects of local mate and resource competition (often abbreviated LMC and LRC, respectively). Fisher's principle (1930) explains why in most species, the sex ratio is approximately 1:1. His argument was summarised by W. D. Hamilton (1967) as follows, assuming that parents invest the same whether raising male or female offspring: In modern language,

364-412: The blessing of Siddhi Vināyaka. The shrine is particularly popular during the festivals of Ganesh Jayanti , Vijayadashami and Somvati Amavasya . Ahmednagar district Although Ahmednagar district was created as early as 1818, modern history of Ahmednagar may be said to have commenced from 1869, the year when parts of Nashik and Solapur, which till then had comprised Nagar, were separated and

390-503: The decade 2001-2011 was 12.43%. Ahmadnagar had a sex ratio of 934 females for every 1000 males, and a literacy rate of 80.22%. 20.09% of the population lives in urban areas. Scheduled Castes and Scheduled Tribes made up 12.63% and 8.63% of the population respectively. In the 2011 census, the vast majority of the population in Ahmednagar was Hindu, but there was a significant population of Muslims. Jains and Buddhists are small minorities. Languages of Ahmednagar district (2011) At

416-544: The evidence is less clear. It is known, however, that both male-biased adult sex ratios and cooperative breeding tend to evolve where caring for offspring is extremely difficult due to low secondary productivity, as in Australia and Southern Africa . It is also known that in cooperative breeders where both sexes are philopatric like the varied sittella , adult sex ratios are equally or more male-biased than in those cooperative species, such as fairy-wrens , treecreepers and

442-413: The male fish dies, the strongest female changes its sex to become the male for the group. All of these wrasses are born female, and only become male in this situation. Other species, like clownfish, do this in reverse, where all start out as non-reproductive males, and the largest male becomes a female, with the second-largest male maturing to become reproductive. Traditionally, farmers have discovered that

468-520: The maximum number of sugar factories in the state. The first cooperative sugar factory in Asia was established at Pravanagar. A role model of water conservation work can be seen at Ralegaon Siddhi , which is also called the Ideal Village. Newase where Dnyaneshwari was written, Shri Saibaba's Shirdi, one of Ashtavinayaks at Siddhatek, the famous Kanifnath temple, attract devotees. The Palace of Chand Bibi ,

494-434: The most economically efficient community of animals will have a large number of females and a very small number of males. A herd of cows with a few bulls or a flock of hens with one rooster are the most economical sex ratios for domesticated livestock. It was found that the amount of fertilizing pollen can influence secondary sex ratio in dioecious plants. Increase in pollen amount leads to decrease in number of male plants in

520-829: The other. For species where the cost of successfully raising one offspring is roughly the same regardless of its sex, this translates to an approximately equal sex ratio. Bacteria of the genus Wolbachia cause skewed sex ratios in some arthropod species as they kill males. Sex-ratio of adult populations of pelagic copepods is usually skewed towards dominance of females. However, there are differences in adult sex ratios between families: in families in which females require multiple matings to keep producing eggs, sex ratios are less biased (close to 1); in families in which females can produce eggs continuously after only one mating, sex ratios are strongly skewed towards females. Several species of reptiles have temperature-dependent sex determination , where incubation temperature of eggs determines

546-717: The present Nagar district was formed. Ahmednagar District was created after the defeat of the Maratha Empire in the Third Anglo-Maratha War in 1818, when most of the Peshwa 's domains were annexed to British India . The district remained part of the Central division of Bombay Presidency until India's independence in 1947, when it became part of Bombay State , and in 1960 the new state of Maharashtra. The district along with its namesake city were renamed to Ahilyanagar in 2023 by

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572-440: The progeny. This relationship was confirmed on four plant species from three families – Rumex acetosa ( Polygonaceae ), Melandrium album (Caryophyllaceae), Cannabis sativa and Humulus japonicus ( Cannabinaceae ). In charadriiform birds, recent research has shown clearly that polyandry and sex-role reversal (where males care and females compete for mates) as found in phalaropes , jacanas , painted snipe and

598-480: The sex of the individual. In the American alligator , for example, females are hatched from eggs incubated between 27.7 to 30 °C (81.9 to 86.0 °F), whereas males are hatched from eggs 32.2 to 33.8 °C (90.0 to 92.8 °F). In this method, however, all eggs in a clutch (20–50) will be of the same sex. In fact, the natural sex ratio of this species is five females to one male. In birds, mothers can influence

624-414: The sex of their chicks. In peafowl , maternal body condition can influence the proportion of daughters in the range from 25% to 87%. Dichogamy (sequential hermaphroditism) is normal in several groups of fish, such as wrasses , parrotfish and clownfish . This can cause a discrepancy in the sex ratios as well. In the bluestreak cleaner wrasse , there is only one male for every group of 6-8 females. If

650-405: The sex ratio reverses, with 81 older men for every 100 older women; across all ages, the global population is nearly balanced, with 101 males for every 100 females. In most species, the sex ratio varies according to the age profile of the population. It is generally divided into four subdivisions: These definitions can be somewhat subjective since they lack clear boundaries. Sex ratio theory

676-525: The time of the 2011 Census of India , 88.89% of the population in the district spoke Marathi , 4.74% Hindi and 2.74% Urdu as their first language. Other languages include Telugu and its dialect Waddar , as well as Marwari . Islam arrived in Ahmednagar during the Tughlaq dynasty . There are many Muslim monuments like salabat khan's Tomb known as chandbibi, Faria Baug, Ground Fort and many dargas (mosques), and they are found in main town and cities. During

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