The New Neotropical Companion
Figure 11– 1. Comparison of distributions of Heliconius erato and H. melpomene. Note the divergence within each species’ converg ...
chapter 11 evolutionary arms races: more coevolution, more complexity 201 ...
some fly species have evolved to look similar to bees and wasps, presumably gaining protection from their similarity to aggressi ...
utilize the plant (such as heliconid caterpillars gaining evolutionary access to Passiflora). In turn, these insect herbivores s ...
Plate 12- 2. There is much to be seen by cruising rivers. This caiman has attracted several butterflies to its face. The insects ...
Neotropical River Ecosystems: Orinoco and Amazon One of the most enjoyable ways to explore Amazonia is to take a river cruise. E ...
The Unique Tepuis The smooth terrain that prevails in much of southeastern Venezuela, part of the geologically ancient Guiana Sh ...
The Orinoco begins at an elevation of 1,074 m (3,523 ft) in the Parima Mountains close to the border between Venezuela and Brazi ...
Peru. Two Amazonian tributary rivers, the Negro and the Madeira, rank as the fifth- and sixth- largest rivers in the world with ...
Examples of major blackwater rivers include the Río Negro and Río Urubu. Clearwater rivers include the Río Tapajós, Río Trombeta ...
life- cycle stages. Until recently, the extensive damming activities routinely seen in countries such as the United States were ...
Plate 12- 9. Sandbar scrub has stabilized this island in the Río Napo. Photo by John Kricher. Plate 12- 10. River island in the ...
dispersal, plants quickly colonize (plate 12- 11). As the colonizers stabilize the sandbar, it builds, forming a point bar and e ...
Swamps A swamp is generally an area of woody vegetation that is inundated by standing water for a significant part of the year. ...
to good use as they search for food among the trees of the flooded forests. They do not have keen eyesight but have effective so ...
the upper part of the squarish head, all adaptations to the animal’s aquatic lifestyle. Capybara vocalizations sound strikingly ...
Should you see an otter that is not really giant, you are looking at a Southern River Otter (Lontra longicaudis), a species that ...
number of extant species in the family Crocodylidae is unclear, though the most commonly cited figures are 22 or 23. Eleven spec ...
dangerous Indo- Pacific Crocodile (C. porosus). There are four Neotropical species of crocodiles. The American Crocodile (C. acu ...
of the Amazon westward as far as northeastern Peru and Bolivia. The species has suffered serious population reduction throughout ...
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