Daniel E. Bunker

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A trade-off between growth and mortality rates characterizes tree species in closed canopy forests. This trade-off is maintained by inherent differences among species and spatial variation in light availability caused by canopy-opening disturbances. We evaluated conditions under which the trade-off is expressed and relationships with four key functional(More)
Tropical forest biodiversity is declining, but the resulting effects on key ecosystem services, such as carbon storage and sequestration, remain unknown. We assessed the influence of the loss of tropical tree species on carbon storage by simulating 18 possible extinction scenarios within a well-studied 50-hectare tropical forest plot in Panama, which(More)
Comparative analyses that link information on species' traits, environmental change, and organism response have rarely identified unambiguous trait correlates of vulnerability. We tested if species' traits could predict local-scale changes in dung beetle population response to three levels of forest conversion intensity within and across two biogeographic(More)
1 We hypothesized that severe drought affects the structure of tropical forests by favouring seedlings of some species or groups at the expense of others. To test this hypothesis, we irrigated naturally occurring woody seedlings during an El Niño-related drought in seasonal moist tropical forest on Barro Colorado Island, Panama. We predicted that irrigated(More)
T he vast majority of nations have fallen far short of the Convention on Biological Diversity’s (CBD’s) 2010 target: to reduce the rate of loss of biodiversity ( 1, 2). This prompted the CBD to develop a new plan of action, supported by 20 “SMART” (specific, measurable, ambitious, realistic, and time-bound) targets for 2020 ( 3, 4). As the 10th Conference(More)
www.frontiersinecology.org © The Ecological Society of America I 1992, 167 countries signed the Convention on Biological Diversity (CBD) to ensure the conservation and sustainable use of biodiversity and the equitable sharing of the benefits from utilizing genetic resources. The 10th Conference of the Parties (COP) of the CBD took place in October 2010 in(More)
We propose a comprehensive program to evaluate the post-release phase of biocontrol programs that use insect herbivores to control invasive plant species. We argue that any release should be done in randomized release and non-release sites and should be followed up by well-replicated sampling and experimental protocols that evaluate the degree of success or(More)
Aeromonas spp. have been implicated in a wide spectrum of human disease including wound infection. A review is made of local experience of 27 wound infections from which aerogenic strains ofAeromonas were recovered; of these,Aeromonas was isolated in pure culture from five infections. Twenty-five infections were related to trauma and were community(More)
Trait-based ecological and evolutionary research has undergone an extraordinary expansion in the last thirty years (Fig. 20.1), and species traits, broadly defined, have been key to advances in many fields of natural science (Table 20.1). For example, the evolutionary ecology of species’ niches involves fundamental trade-offs in seed size (Moles et al.(More)
The majority of species in ecosystems are rare, but the ecosystem consequences of losing rare species are poorly known. To understand how rare species may influence ecosystem functioning, this study quantifies the contribution of species based on their relative level of rarity to community functional diversity using a trait-based approach. Given that rarity(More)