A Test of Janzen-Connell Hypothesis in Indian Deciduous Forest: A Relationship between Ecology and Mycology in Mudumalai Tiger Reserve, Tamil Nadu

 
9783848430321: A Test of Janzen-Connell Hypothesis in Indian Deciduous Forest: A Relationship between Ecology and Mycology in Mudumalai Tiger Reserve, Tamil Nadu
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Almost 4 decades ago Janzen(1970) and Connell(1971) proposed that one of the key factors in maintaining high tropical tree species diversity was played by the various host-specific seed and seedling predators, herbivores and pathogens. They predicted inexplicably high mortality of seed and seedlings close to the parent tree because of these natural enemies. In the present paper, the primary motive was to identify the spatial patterns of the dispersed seedlings, about four years old and subsequent infection by fungal pathogens, which determine their recruitment, relative to the distance from the parent tree. The field experiment was carried out in the dry deciduous part (50 Hectare plot) of the Mudumalai Tiger Reserve, Tamil Nadu, which confirmed that there is both a decrease in the seedling density and in the proportion of infected seedlings, as a function of distance from the parent tree, among the seedlings of Syzygium cumini, a bird-dispersed tree species. This supported Janzen's hypothesis that pathogen activity and seedling vulnerability to disease is maximum, when established near parent tree where seedling density is highest.

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L'autore:

An alumnus of Forest Research Institute, Dehradun pursued her Master’s in Environment Management. She was closely associated with ecological studies at Mudumalai Tiger Reserve for six months. She has a Bachelor's degree in Botany (Hons.) from Delhi University.Presently, working at Evalueserve, with more than one year of corporate work experience.

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Nandita Niyogi (author)
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Descrizione libro LAP Lambert Academic Publishing 2012-03-22, 2012. paperback. Condizione: New. Codice articolo 9783848430321

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Descrizione libro Condizione: New. Publisher/Verlag: LAP Lambert Academic Publishing | A Relationship between Ecology and Mycology in Mudumalai Tiger Reserve, Tamil Nadu | Almost 4 decades ago Janzen(1970) and Connell(1971) proposed that one of the key factors in maintaining high tropical tree species diversity was played by the various host-specific seed and seedling predators, herbivores and pathogens. They predicted inexplicably high mortality of seed and seedlings close to the parent tree because of these natural enemies. In the present paper, the primary motive was to identify the spatial patterns of the dispersed seedlings, about four years old and subsequent infection by fungal pathogens, which determine their recruitment, relative to the distance from the parent tree. The field experiment was carried out in the dry deciduous part (50 Hectare plot) of the Mudumalai Tiger Reserve, Tamil Nadu, which confirmed that there is both a decrease in the seedling density and in the proportion of infected seedlings, as a function of distance from the parent tree, among the seedlings of Syzygium cumini, a bird-dispersed tree species. This supported Janzen s hypothesis that pathogen activity and seedling vulnerability to disease is maximum, when established near parent tree where seedling density is highest. | Format: Paperback | Language/Sprache: english | 160 pp. Codice articolo K9783848430321

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Descrizione libro LAP Lambert Academic Publishing, 2016. Paperback. Condizione: New. PRINT ON DEMAND Book; New; Publication Year 2016; Not Signed; Fast Shipping from the UK. No. book. Codice articolo ria9783848430321_lsuk

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Descrizione libro LAP Lambert Academic Publishing Mrz 2012, 2012. Taschenbuch. Condizione: Neu. Neuware - Almost 4 decades ago Janzen(1970) and Connell(1971) proposed that one of the key factors in maintaining high tropical tree species diversity was played by the various host-specific seed and seedling predators, herbivores and pathogens. They predicted inexplicably high mortality of seed and seedlings close to the parent tree because of these natural enemies. In the present paper, the primary motive was to identify the spatial patterns of the dispersed seedlings, about four years old and subsequent infection by fungal pathogens, which determine their recruitment, relative to the distance from the parent tree. The field experiment was carried out in the dry deciduous part (50 Hectare plot) of the Mudumalai Tiger Reserve, Tamil Nadu, which confirmed that there is both a decrease in the seedling density and in the proportion of infected seedlings, as a function of distance from the parent tree, among the seedlings of Syzygium cumini, a bird-dispersed tree species. This supported Janzen s hypothesis that pathogen activity and seedling vulnerability to disease is maximum, when established near parent tree where seedling density is highest. 160 pp. Englisch. Codice articolo 9783848430321

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Descrizione libro LAP Lambert Academic Publishing Mrz 2012, 2012. Taschenbuch. Condizione: Neu. Neuware - Almost 4 decades ago Janzen(1970) and Connell(1971) proposed that one of the key factors in maintaining high tropical tree species diversity was played by the various host-specific seed and seedling predators, herbivores and pathogens. They predicted inexplicably high mortality of seed and seedlings close to the parent tree because of these natural enemies. In the present paper, the primary motive was to identify the spatial patterns of the dispersed seedlings, about four years old and subsequent infection by fungal pathogens, which determine their recruitment, relative to the distance from the parent tree. The field experiment was carried out in the dry deciduous part (50 Hectare plot) of the Mudumalai Tiger Reserve, Tamil Nadu, which confirmed that there is both a decrease in the seedling density and in the proportion of infected seedlings, as a function of distance from the parent tree, among the seedlings of Syzygium cumini, a bird-dispersed tree species. This supported Janzen s hypothesis that pathogen activity and seedling vulnerability to disease is maximum, when established near parent tree where seedling density is highest. 160 pp. Englisch. Codice articolo 9783848430321

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Nandita Niyogi
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Descrizione libro LAP Lambert Academic Publishing Mrz 2012, 2012. Taschenbuch. Condizione: Neu. This item is printed on demand - Print on Demand Neuware - Almost 4 decades ago Janzen(1970) and Connell(1971) proposed that one of the key factors in maintaining high tropical tree species diversity was played by the various host-specific seed and seedling predators, herbivores and pathogens. They predicted inexplicably high mortality of seed and seedlings close to the parent tree because of these natural enemies. In the present paper, the primary motive was to identify the spatial patterns of the dispersed seedlings, about four years old and subsequent infection by fungal pathogens, which determine their recruitment, relative to the distance from the parent tree. The field experiment was carried out in the dry deciduous part (50 Hectare plot) of the Mudumalai Tiger Reserve, Tamil Nadu, which confirmed that there is both a decrease in the seedling density and in the proportion of infected seedlings, as a function of distance from the parent tree, among the seedlings of Syzygium cumini, a bird-dispersed tree species. This supported Janzen s hypothesis that pathogen activity and seedling vulnerability to disease is maximum, when established near parent tree where seedling density is highest. 160 pp. Englisch. Codice articolo 9783848430321

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Nandita Niyogi
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Descrizione libro LAP Lambert Academic Publishing, Germany, 2012. Paperback. Condizione: New. Aufl.. Language: English . Brand New Book. Almost 4 decades ago Janzen(1970) and Connell(1971) proposed that one of the key factors in maintaining high tropical tree species diversity was played by the various host-specific seed and seedling predators, herbivores and pathogens. They predicted inexplicably high mortality of seed and seedlings close to the parent tree because of these natural enemies. In the present paper, the primary motive was to identify the spatial patterns of the dispersed seedlings, about four years old and subsequent infection by fungal pathogens, which determine their recruitment, relative to the distance from the parent tree. The field experiment was carried out in the dry deciduous part (50 Hectare plot) of the Mudumalai Tiger Reserve, Tamil Nadu, which confirmed that there is both a decrease in the seedling density and in the proportion of infected seedlings, as a function of distance from the parent tree, among the seedlings of Syzygium cumini, a bird-dispersed tree species. This supported Janzen s hypothesis that pathogen activity and seedling vulnerability to disease is maximum, when established near parent tree where seedling density is highest. Codice articolo KNV9783848430321

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