Browsing Ciencia e Investigación by Title

Now showing items 818-821 of 821

Yellow-naped Amazon Amazona auropalliata populations are markedly low and rapidly declining in Costa Rica and Nicaragua

WRIGHT, TIMOTHY F.; LEWIS, THOMAS C.; LEZAMA-LÓPEZ, MARTÍN; SMITH-VIDAURRE, GRACE; DAHLIN, CHRISTINE R. (Cambridge University Press (CUP), 2019-06)

Accurate assessments of population sizes and trends are fundamental for effective species conservation, particularly for social and long-lived species in which low reproductive rates, aging demographic structure and Allee ...
Yes?

Janzen, Daniel H. (1978-12)

vices. As a symbiotic alternative, plants have evolved more easily obtainable food sources such as extra-floral nectaries; these and other devices have conferred on the comparatively sedentary (and often aggressive) ants a ...
Yucatan Meteor: The Real Impact

Janzen, Daniel H. (1992-11-13)

The caprice of one large meteor hitting the earth 65 million years ago (Richard A. Kerr, Research News, 14 Aug., p. 878) is responsible for the existence of humanity. Had the dinosaurs survived, with all their capacity ...
Zero‐shot shark tracking and biometrics from aerial imagery

Lalgudi, Chinmay K.; Leone, Mark E.; Clark, Jaden V.; Madrigal‐Mora, Sergio; Espinoza, Mario (Wiley, 2025-09)

he recent widespread adoption of drones for studying marine animals provides opportunities for deriving biological information from aerial imagery. The large scale of imagery data acquired from drones is well suited for ...

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