Interspecific variation in conspecific negative density dependence can make species less likely to coexist
نویسندگان
چکیده
منابع مشابه
Conspecific negative density dependence and forest diversity.
Conspecific negative density-dependent establishment, in which local abundance negatively affects establishment of conspecific seedlings through host-specific enemies, can influence species diversity of plant communities, but the generality of this process is not well understood. We tested the strength of density dependence using the United States Forest Service's Forest Inventory and Analysis ...
متن کاملComment on "Conspecific negative density dependence and forest diversity".
Johnson and colleagues (Reports, 18 May 2012, p. 904) claim that conspecific negative density dependence is a pervasive mechanism driving forest diversity, especially for rare tree species. We show that their results are due to a statistical bias in their analysis caused by the exclusion of joint absences.
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Local tree species diversity is maintained in part by conspecific negative density dependence (CNDD). This pervasive mechanism occurs in a variety of forms and ecosystems, but research to date has been heavily skewed toward tree seedling survival in tropical forests. To evaluate CNDD more broadly, we investigated how sapling growth rates were affected by conspecific adult neighbors in a fully m...
متن کاملConspecific density dependence in seedlings varies with species shade tolerance in a wet tropical forest.
Density-dependent seedling mortality could increase with a species relative abundance, thereby promoting species coexistence. Differences among species in light-dependent mortality also could enhance coexistence via resource partitioning. These compatible ideas rarely have been considered simultaneously. We developed models of mortality as functions of irradiance and local conspecific density (...
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Can constitutional rights be both personal and rule-dependent? Can it be true of constitutional adjudication (1) that a constitutional litigant must assert “her own” rights, and yet also (2) that the viability of a constitutional challenge depends (or sometimes depends) on whether a particular type of legal rule, for example, a discriminatory or poorly tailored rule, is in force? In a previous ...
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ژورنال
عنوان ژورنال: Ecology Letters
سال: 2018
ISSN: 1461-023X,1461-0248
DOI: 10.1111/ele.13135