22-684: The European Cemetery or Ambala Christian Cemetery is a state protected monument at Ambala district in Haryana . The occupancy right and management of the Cemetery is with the British High Commission. There are 66 graves of martyrs of World War I . The war graves comes under the protection of the Commonwealth War Graves Commission ( CWGC). It is also known as a military cemetery, as there are many graves and monuments erected in
44-479: 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
66-411: 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
88-499: Is also referred as Science City . According to the 2011 census , Ambala district had a population of 1,128,350 roughly equal to the nation of Cyprus or the US state of Rhode Island . It ranks 410th (out of a total of 640 ) in India in terms of population. The district has a population density of 720 inhabitants per square kilometre (1,900/sq mi) . Its population growth rate over
110-460: 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,
132-836: Is one of the 22 districts of Haryana state in the country of India with Ambala town serving as the administrative headquarters of the district. District Ambala lies on the North-Eastern edge of Haryana and borders Punjab and Himachal Pradesh . Ambala district is a part of Ambala Division . This district falls under the Ambala Lok Sabha constituency , which is a reserved for the Scheduled Caste candidates only. This district also has four Vidhan Sabha constituencies , all of which are part of Ambala Lok Sabha constituency. Those are Ambala City , Ambala Cantt , Mulana and Naraingarh . Administration of this district falls under
154-535: The Ambala division and law and order falls under the Ambala Police Range . The district administration has two sub-divisions, Ambala and Naraingarh . District is further subdivided into 4 community development blocks and 7 revenue tehsils. Community development blocks are Ambala, Ambala Cantt, Barara and Naraingarh. Tehsils are Ambala, Ambala Cantt, Barara, Mullana, Saha , Shahzadpur and Naraingarh. Located in
176-520: The Indo-Gangetic Plain , the land is generally fertile and conducive to agriculture. However, primary sector contributes much lesser to the economy of the district than it does to the economy of Haryana. Small scale industries form the bulk of the industrial landscape in the district. It is one of the largest producers of scientific and surgical instruments in the country and home to a large number of scientific instrument manufacturers due to which it
198-546: 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
220-429: 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,
242-399: The decade 2001-2011 was 11.23%. Ambala had a sex ratio of 885 females for every 1000 males, and a literacy rate of 81.75%. Scheduled Castes make up 26.25% of the population. Languages of Ambala district (2011 Census) Hindi (In Devanagri Script) is the official languages and thus used for official communication. At the time of the 2011 Census of India , 84.57% of the population in
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#1732869270096264-739: The district spoke Hindi , 10.95% Punjabi and 2.72% Haryanvi as their first language. List of films , Chandrawal , Jagat Jakhar ) 30°25′N 77°10′E / 30.417°N 77.167°E / 30.417; 77.167 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
286-544: 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
308-413: 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
330-800: The memory of soldiers served in the Indian Army of the British era.The graves found here are in the European Architecture. After Independence, the Cemetery is taken care by Ambala Cemetery Committee and the Honorary Secretary of the Committee is the Parish Priest of Holy Redeemer Church (Catholic Church) and maintain two lakh grave in the cemetery. During 1899-1902 AD, British sent hundreds of Boer prisoners to Sri Lanka, India and other colonies. Many of
352-434: 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
374-829: 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
396-646: The prisoners were kept at Ambala Jail . Few of the Boer prisoners couldn't return to their country and died in Ambala, India. Twenty of them got buried in the European Cemetery. The rest had an agreement to join hands with British to fight against Blacks. The graves of Boers has their name inscribed at European Cemetery. European Cemetery is also the resting place the of some of the last East India Company officials served in India. Ambala district Ambala district
418-440: 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
440-480: 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
462-414: 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
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#1732869270096484-405: 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
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