{"product_id":"a-test-of-janzen-connell-hypothesis-in-indian-deciduous-forest-von-nandita-niyogi","title":"A Test of Janzen-Connell Hypothesis in Indian Deciduous Forest","description":"\u003cp\u003eAlmost 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.\u003c\/p\u003e\u003cdiv class=\"aw-variant-hidden-subtitle-div\" id=\"aw-variant-subtitle-9783848430321\"\u003e\u003ch3\u003eA Relationship between Ecology and Mycology in Mudumalai Tiger Reserve, Tamil Nadu\u003c\/h3\u003e\u003c\/div\u003e","brand":"Autorenwelt Shop","offers":[{"title":"Softcover - 9783848430321","offer_id":39491296395357,"sku":"9783848430321","price":59.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0622\/files\/05d329b5-eac2-48f0-a84b-4c079dbe761c.jpg?v=1757826034","url":"https:\/\/shop.autorenwelt.de\/products\/a-test-of-janzen-connell-hypothesis-in-indian-deciduous-forest-von-nandita-niyogi","provider":"Autorenwelt Shop","version":"1.0","type":"link"}