Results 161 to 170 of about 1,765 (210)
Some of the next articles are maybe not open access.
Guidelines for Developing Protected Areas for Sirenians
2012[Extract] The range of sirenians spans almost 90 subtropical and tropical countries and territories on five continents. Most of these countries are classified as less developed. The purpose of this chapter is to assist managers and scientists with their responsibilities in these countries to work with stakeholders to design protected areas that will ...
Marsh, Helene, Morales-Vela, Benjamin
openaire +1 more source
Ascaridoid nematodes of Sirenians—the Heterocheilinae redefined
Journal of Helminthology, 1980AbstractThe two ascaridoids of sirenians, Heterocheilus tunicatus Diesing, 1839, and Paradujardinia halicoris (Owen, 1833), are redescribed. A basic affinity between the two species is indicated in the bilateral structure of the excretory system, the globular ventriculus, long intestinal caecum, and the form of the male tail.
openaire +1 more source
Human Interactions with Sirenians (Manatees and Dugongs)
2017There are three extant sirenian species of the Trichechidae family and one living Dugongidae family member. Given their close ties to coastal and often urbanized habitats, sirenians are exposed to many types of anthropogenic activities that result in challenges to their well-being, poor health, and even death.
Robert K. Bonde, Mark Flint
openaire +1 more source
Sirenians in West Coast Marine Stratigraphy: ABSTRACT
AAPG Bulletin, 1973Sirenians are fairly common as fossils in many late Tertiary nearshore marine deposits of the West Coast. The general pattern of their evolution in the North Pacific from early Miocene to recent times is now known. With the exception of the early Miocene forms, all the known species are stratigraphically successive and seem to belong to a single ...
openaire +1 more source
Conservation of marine mammals: pinnipeds and sirenians
2020Marine mammals are a broad group of mammals adapted to the aquatic life which depend on the ocean for most or all their life needs. Pinnipeds are highly specialized aquatic carnivores that live in a variety of marine habitats, including freshwater for some of them.
openaire +1 more source
Mermaids in pools: Ex-situ conservation as a cornerstone for sirenian management worldwide
Journal for Nature ConservationD. N. Castelblanco‐Martínez +31 more
semanticscholar +1 more source