Results 61 to 70 of about 1,205 (174)

Unraveling Biogeographic Boundaries Within the Sierra Madre Oriental, México: An Endemicity Analysis Using a Taxonomically Diverse Dataset

open access: yesEcology and Evolution, Volume 15, Issue 1, January 2025.
We provide boundaries of the Sierra Madre Oriental in Mexico through a multi‐taxa endemicity analysis. ABSTRACT The Sierra Madre Oriental (SMO) is a significant mountain range and one of Mexico's 14 biogeographical provinces. Its delimitation has been debated.
Irene Goyenechea Mayer‐Goyenechea   +5 more
wiley   +1 more source

Evaluation of traditional fire management in the Brazilian Cerrado

open access: yesBiodiversidade Brasileira, 2020
Fire is a natural component of ecosystems and has been widely used by indigenous peoples in the management of tropical savannas. However, in recent decades, policies aimed at the exclusion of fire have suppressed the use of burns and the related ...
Rodrigo de Moraes Falleiro   +3 more
doaj   +3 more sources

Comparative three‐dimensional jaw muscle anatomy of marsupial carnivores (Dasyurus spp.) and the termite‐eating numbat (Myrmecobius fasciatus)

open access: yesJournal of Morphology, Volume 285, Issue 3, March 2024.
We present the first qualitative and quantitative descriptions of masticatory muscles in Dasyuromorphian marsupials, using contrast‐enhanced microcomputed tomography imaging. Termite‐eating numbats had reduced masticatory muscle mass and a highly modified digastric muscle connecting to the tongue. The jaw muscles of carnivorous quolls corresponded to a
Vanessa J. Thomas   +3 more
wiley   +1 more source

Comparative histology and ontogenetic change in the carapace of armadillos (Mammalia: Dasypodidae) [PDF]

open access: yesZoomorphology, 2015
Among extant mammals, the presence of osteoderms is limited to armadillos (Xenarthra, Dasypodidae), being one of its distinctive features. The osteoderms are articulated to form a carapace that covers their body dorsally. In this paper we study the integumentary structures of the armadillos Chaetophractus vellerosus, Chaetophractus villosus, Euphractus
Krmpotic, Cecilia Mariana   +5 more
openaire   +3 more sources

兽类学基础知识——第五讲 贫齿目概论

open access: yes野生动物学报, 1983
贫齿目(Edentata)字源于拉丁文,其字首Edentul-,是没牙的意思;字尾-ate是将字首变为形容词。顾名思义,这个目的动物应该没有牙齿。实际上,除食蚁兽(Myrmeccobius fasciatus Waterhouse)一科——食蚁兽科(美洲食蚁兽科)真正没有牙外,其余两个科——犰狳科(Dasypodidae)有多达100颗左右的同型齿(homodont),而树懒科(Bradypodidae ...
罗泽珣
doaj  

Sexual dimorphism in the mandible of the armadillo Chaetophractus villosus (Desmarest, 1804) (Dasypodidae) from northern Patagonia, Argentina Dimorfismo sexual da mandíbula do tatu Chaetophractus villosus (Desmarest, 1804) (Dasypodidae) do norte da Patagônia Argentina

open access: yesBrazilian Journal of Biology, 2009
The aim of this study was to study the sexual dimorphism in adult Chaetophractus villosus (Desmarest, 1804), from northern Patagonia, Argentina. Eight mandibular traits were measured in 37 males and 34 females.
SM. Squarcia   +3 more
doaj   +1 more source

Taphonomy of harpy eagle predation on primates and other mammals

open access: yesAmerican Journal of Primatology, Volume 86, Issue 1, January 2024.
Crania of bearded saki, saki monkey, and woolly monkey recovered from harpy eagle nests. Capuchin monkey individual freshly brought to the nest by harpy eagle (left). Abstract The goal of this study is to provide a taphonomic analysis of bone fragments found in harpy eagle nests in the Brazilian Amazonia, utilizing the largest sample of prey remains ...
Guilherme S. T. Garbino   +2 more
wiley   +1 more source

Osteoderm microstructure of Riostegotherium yanei, the oldest Xenarthra

open access: yesAnais da Academia Brasileira de Ciências
: Riostegotherium yanei from the Itaboraí Basin, Brazil, is the oldest known Xenarthra. This paper aims to describe the internal morphology of the osteoderms of Riostegotherium yanei from the perspective of histology and micro-CT approaches, expanding ...
LÍLIAN P. BERGQVIST   +5 more
doaj   +1 more source

Environmental and Anthropogenic Predictors Influence the Diversity of Nonflying Mammals in a Native Savanna Landscape of Northern South America

open access: yesInternational Journal of Zoology, Volume 2024, Issue 1, 2024.
The native savannas of eastern Colombia cover about six percent of the Neotropical savannas. Within these 17 million hectares, the current composition of nonflying mammals evidenced colonization from Andean, Guyanese, and Amazonian speciation centers and endemism processes.
Federico Mosquera-Guerra   +5 more
wiley   +1 more source

Effects of change in primary forest cover on armadillo (Cingulata, Mammalia) burrow use in the Central Amazon Efectos del cambio en la cobertura de bosque primario sobre el uso de las madrigueras por los armadillos (Cingulata, Mammalia) en la Amazonia Central

open access: yesRevista Mexicana de Biodiversidad, 2012
Transformation of primary forest to other vegetation types alters the availability and distribution of resources, and thus affects their use by species that inhabit the forest.
María Clara Arteaga   +1 more
doaj  

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