Results 61 to 70 of about 26,897 (235)

Assessing the potential for intraguild predation among taxonomically disparate micro-carnivores: marsupials and arthropods [PDF]

Royal Society Open Science, 2018
Interspecific competition may occur when resources are limited, and is often most intense between animals in the same ecological guild. Intraguild predation (IGP) is a distinctive form of interference competition, where a dominant predator selectively ...
Tamara I. Potter, Aaron C. Greenville, Christopher R. Dickman   +2 more
doaj   +1 more source

Presence of trypanosomatids, with emphasis on Leishmania, in Rodentia and Didelphimorphia mammals of a rural settlement in the central Amazon region

Memorias do Instituto Oswaldo Cruz, 2021
BACKGROUND Trypanosomatids are widespread and cause diseases - such as trypanosomiasis, sleeping sickness, Chagas disease, and cutaneous and visceral leishmaniasis - in animals and humans.
Genevere Reis Achilles, Rafael Pinto Kautzmann, Haile Dean Figueiredo Chagas, Jordam William Pereira-Silva, Jéssica Feijó Almeida, Fernanda Rodrigues Fonseca, Maria Nazareth Ferreira da Silva, Felipe Arley Costa Pessoa, Alessandra Ferreira Dales Nava, Claudia María Ríos-Velásquez   +9 more
doaj   +1 more source

Estimation and rapid identification of later stages during embryonic development of the oviparous lizard Sceloporus aeneus (Squamata: Phrynosomatidae)

The Anatomical Record, EarlyView.
Abstract Stages of embryonic development for reptiles have been presented in tables that may include all or part of embryonic development. When oviposition occurs in some lizards, embryos are already in the later stages of development; likewise, the size of the eggs increases as incubation time progresses.
Nivia Rocio Antonio‐Rubio, Maricela Villagrán‐SantaCruz, Martha Elena Díaz‐Hernández, Norma Moreno‐Mendoza   +3 more
wiley   +1 more source

Germination in seed species ingested by opossums: implications for seed dispersal and forest conservation

Brazilian Archives of Biology and Technology, 2007
Seed germination in plant species consumed by opossums, genus Didelphis, was investigated in southern Brazil, in order to improve knowledge of the strategies of zoochorous plants in the Neotropics. Seeds were obtained from opossum feces.
Nilton Carlos Cáceres, Emygdio Leite de Araújo Monteiro-Filho   +1 more
doaj   +1 more source

A new genus and species of Heligmonellidae (Nematoda: Trichostrongylina) parasitic in Delomys dorsalis (Rodentia: Sigmodontinae) from Misiones, Argentina [PDF]

, 2014
Alippistrongylus bicaudatus gen. et sp. n. (Nematoda: Heligmonellidae) is described from the striped Atlantic forest rat, Delomys dorsalis (Hensel) (Rodentia: Sigmodontinae), from the province of Misiones in Argentina.
Durette-Desset, Durette-Desset, Wilson
core   +2 more sources

Ontogeny of murine bony semicircular canal form

The Anatomical Record, EarlyView.
Abstract The labyrinthine geometry and functional anatomy of the semicircular canals have intrigued scientists for decades, and there has been considerable interest in understanding how these complex structures grow and develop with evidence emerging from human studies that size maturation occurs exceptionally early by comparison with other systems ...
Marcela Cárdenas‐Serna, Nathan Jeffery   +1 more
wiley   +1 more source

American marsupials chromosomes: why study them?

Genetics and Molecular Biology, 2009
Marsupials, one of the three main groups of mammals, are only found in Australia and in the American continent. Studies performed in Australian marsupials have demonstrated the great potential provided by the group for the understanding of basic genetic ...
Marta Svartman
doaj  

From armadillos to sloths: Patterns and variations in xenarthran coronary anatomy

The Anatomical Record, EarlyView.
Abstract Species of the superorder Xenarthra play a vital ecological role in the Neotropics. Despite their evolutionary significance, anatomical studies on their coronary circulation remain scarce. This study investigated the coronary anatomy of 82 hearts from nine Xenarthra species across the Dasypodidae, Myrmecophagidae, and Bradypodidae.
Wilson Viotto‐Souza, André Luiz Quagliatto Santos, Marcelo Abidu‐Figueiredo, Thaís Aparecida Silva, Rodrigo Ananias Barreiros Silva, Paulo de Souza‐Junior   +5 more
wiley   +1 more source

Postnatal and Adult Neurogenesis in Mammals, Including Marsupials

Cells, 2022
In mammals, neurogenesis occurs during both embryonic and postnatal development. In eutherians, most brain structures develop embryonically; conversely, in marsupials, a number of brain structures develop after birth.
Katarzyna Bartkowska, Beata Tepper, Krzysztof Turlejski, Ruzanna Djavadian   +3 more
doaj   +1 more source

Hand and foot pressures in the aye-aye (Daubentonia madagascariensis) reveal novel biomechanical trade-offs required for walking on gracile digits [PDF]

, 2010
Arboreal animals with prehensile hands must balance the complex demands of bone strength, grasping and manipulation. An informative example of this problem is that of the aye-aye (Daubentonia madagascariensis), a rare lemuriform primate that is unusual ...
Ancrenaz, Ashton, Cartmill, Cartmill, Cartmill, Curtis, D'Août, Demes, Dutto, Elftman, Erickson, Flannery, Gebo, Hamrick, Hunt, Inouye, Jouffroy, Jouffroy, Jouffroy, Kimura, Kimura, Krakauer, Lammers, Lammers, Lee, Lemelin, Lemelin, Lemelin, Lemelin, Lemelin, Lemelin, Lessertisseur, Milliken, Napier, Napier, Owen, Oxnard, Oxnard, Patel, Patel, Preuschoft, Preuschoft, Prost, Quinn, Raichlen, Raichlen, Reynolds, Richmond, Schaal, Scheumann, Schmitt, Schmitt, Simons, Soligo, Sterling, Strasser, Strasser, Susman, Swartz, Tuttle, Tuttle, Vereecke, Vereecke, Vilensky, Wunderlich, Wunderlich, Wunderlich   +66 more
core   +1 more source