<strong>Why are so many species based on a single specimen?</strong>
نویسندگان
چکیده
منابع مشابه
Why are there so many species in the tropics?
Known for centuries, the geographical pattern of increasing biodiversity from the poles to the equator is one of the most pervasive features of life on Earth. A longstanding goal of biogeographers has been to understand the primary factors that generate and maintain high diversity in the tropics. Many 'historical' and 'ecological' hypotheses have been proposed and debated, but there is still li...
متن کاملIf so many are “few,” how few are “many”?
The scope of reference of a word's meaning can be highly variable. We present a novel paradigm to investigate the flexible interpretation of word meaning. We focus on quantifiers such as "many" or "few," a class of words that depends on number knowledge but can be interpreted in a flexible manner. Healthy young adults performed a truth value judgment task on pictorial arrays of varying amounts ...
متن کاملResponse to Comment on “Why Are There So Many Species of Herbivorous Insects in Tropical Rainforests?”
Norton and Didham (1) argue that differences in plant abundance between tropical and temperate forests may limit the general conclusion that herbivore diversity scales directly with host plant diversity. They point out that our study (2) did not include locally rare tree species. Our temperate/tropical comparison was standardized for sample size and plant phylogeny but not for plant abundance a...
متن کاملComment on "Why are there so many species of herbivorous insects in tropical rainforests?".
Novotny et al. (Reports, 25 August 2006, p. 1115) argued that higher herbivore diversity in tropical forests results from greater phylogenetic diversity of host plants, not from higher host specificity. However, if host specificity is related to host abundance, differences in relative host abundance between tropical and temperate regions may limit any general conclusion that herbivore diversity...
متن کاملWhy are so many trees hollow ? Graeme
In many living trees, much of the interior of the trunk can be rotten or even hollowed out. Previously, this has been suggested to be adaptive, with microbial or animal consumption of interior wood producing a rain of nutrients to the soil beneath the tree that allows recycling of those nutrients into new growth via the trees roots. Here I propose an alternative (non-exclusive) explanation: suc...
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ژورنال
عنوان ژورنال: Zoosymposia
سال: 2019
ISSN: 1178-9913,1178-9905
DOI: 10.11646/zoosymposia.14.1.5