Results 41 to 50 of about 86,164 (180)

Historical Climate and Biome Association Drove Phylogeographic Patterns in the Dwarf Swamp Frog (Anura: Leptodactylidae)

open access: yesZoologica Scripta, Volume 55, Issue 2, Page 220-231, March 2026.
ABSTRACT South America, a region with high biodiversity, has been profoundly shaped by geological events during the Miocene and Pliocene, as well as by climatic changes in the Pleistocene, leading to complex phylogeographic patterns. The diverse biomes and the biotic exchanges between them, particularly between the Amazon and the Cerrado, have ...
Aline N. da Silva   +4 more
wiley   +1 more source

Simulating climate change scenarios established by the Intergovernmental Panel on Climate Change in aquatic mesocosms

open access: yesLimnology and Oceanography: Methods, Volume 24, Issue 2, February 2026.
Abstract Climate change poses a major threat to ecosystems worldwide, with temperature changes being a key driver of ecological disruption in aquatic environments due to the limited ability of many aquatic species to relocate in response. Despite advances in aquatic experimental approaches to temperature control, most studies rely on simplified warming
Tauany Rodrigues   +5 more
wiley   +1 more source

A expografia do meio ambiente no museu de história natural: epistemologia, história e educação

open access: yesRevista Diálogo Educacional, 2021
Este artigo propõe uma análise da potencialidade educativo-ambiental das exposições em museus de história natural, no intuito de trazer reflexões pertinentes para o desenvolvimento de um discurso de caráter socioambiental.
Iván Borroto Rodríguez   +1 more
doaj   +1 more source

New zoarcid fish species from deep-sea hydrothermal vents of the Atlantic [PDF]

open access: yes, 2001
International Ridge-Crest Research: Biological Studies. Vol.
Almeida, A. J.   +2 more
core  

Chemical Aspects Influencing Crack Formation in Black‐and‐White Oil‐Based Paints: Study of Five Spanish Abstract Informalist Paintings by Antonio Saura (1930–1998)

open access: yesChemistry–Methods, Volume 6, Issue 1, January 2026.
This study explores the chemical and physical mechanisms behind the distinct cracking patterns observed in the black‐painted areas of five works by Antonio Saura. Multiband imaging and portable digital microscopy were employed to document the morphology and distribution of crack patterns.
Margherita Gnemmi   +7 more
wiley   +1 more source

Drawing the Vine Line: Integrative Analyses Reveal Seven Distinct Species of African Vine Snakes, Thelotornis (Colubridae: Colubrinae)

open access: yesJournal of Zoological Systematics and Evolutionary Research, Volume 2026, Issue 1, 2026.
African Vine Snakes of the genus Thelotornis are highly specialised arboreal colubrids distributed across sub‐Saharan Africa. Despite pronounced morphological conservatism, the genus occupies diverse forest, woodland and savanna‐associated habitats.
Hanlie M. Engelbrecht   +6 more
wiley   +1 more source

Os lepidópteros dos Açores nas colecções do Museu Carlos Machado [PDF]

open access: yes, 2002
Nas colecções de História Natural do Museu Carlos Machado (MCM) em Ponta Delgada, Ilha de São Miguel, estão presentes 190 espécimes de Lepidópteros dos Açores, pertencentes a 38 espécies (13 Rhopalocera e 25 Heterocera).
Constância, João P., Vieira, Virgílio
core  

The taxonomic status of Farlowella colombiensis Retzer & Page 1997 with comments on species of the F. acus species group (Loricariidae: Loricariinae)

open access: yesJournal of Fish Biology, Volume 107, Issue 5, Page 1669-1684, November 2025.
Abstract The genus Farlowella has been historically challenging, in part due to the difficulty in defining diagnostic characters for defining and identifying the species. Farlowella colombiensis is one such example, whose diagnostic characters are based on caudal‐fin colour pattern, ventral pattern of body cover and anatomical details of the head, such
Omar Eduardo Melo‐Ortiz   +3 more
wiley   +1 more source

Colecções etnográficas extra-ocidentais em Portugal: [PDF]

open access: yes, 2012
O estudo sistemático da cultura material extra-ocidental existente em museus portugueses, bem como, a caracterização e avaliação dos contextos de recolha que originaram esses acervos, enquadram duas componentes fundamentais da história da antropologia no
Cantinho, Manuela
core  

Evidence of sequential hermaphroditism in alfonsinos (Beryx spp.) from the deep northeast Atlantic

open access: yesJournal of Fish Biology, Volume 107, Issue 5, Page 1833-1838, November 2025.
Abstract Among 572 specimens of Beryx splendens and B. decadactylus collected in the Azores (northeast Atlantic), we identified 66 hermaphroditic females, primarily of medium size and at early stages of gonadal development. Hermaphroditism was observed more frequently in winter for B. splendens and in spring–summer for B. decadactylus.
Mariana Cruz   +7 more
wiley   +1 more source

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