We sought to answer the following questions with respect to hummingbird-pollinated plants of a tropical montane rain forest. (1) What is the occurrence and magnitude of PL?

A survey of data from tropical and temperate regions confirms that nectars of hummingbird and honeyeater flowers are dilute, especially relative to nectars of bee flowers.

4 More types of birds ___ in the tropical rainforest than anywhere else in the world.

In turn, tropical climates could lead to a greater variety of morphological (co)adaptations and greater resource specialization [10,25 –28]. Accordingly, studies have found …

of specialization inherent to tropical hummingbird-pollination systems. Moreover, our results demonstrated that factors defining linkage rules of plant-hummingbird networks also determi …

At each patch the examined for the factors used to assess territory quality. number of inflorescences that held mostly unopened flow- To determine how a territorial tropical …