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A New Species of Xiphosomella (Hymenoptera: Ichneumonidae) [PDF]

, 2017
The genus Xiphosomella belongs in the subfamily Cremastinae. This genus and Pristomerus differ from other genera of the subfamily in having a distinct thyridium on the second tergite.
Johnson, Keith R.
core +2 more sources

NEOTROPICAL CARNIVORES: a data set on carnivore distribution in the Neotropics [PDF]

Ecology, 2020
AbstractMammalian carnivores are considered a key group in maintaining ecological health and can indicate potential ecological integrity in landscapes where they occur. Carnivores also hold high conservation value and their habitat requirements can guide management and conservation plans.
Mariana Nagy‐Reis +690 more
openaire +4 more sources

Morphological variation in atlas and axis of Neotropical spiny rats (Rodentia, Echimyidae)

The Anatomical Record, EarlyView.
Abstract The unique morphologies of the first two cervical vertebrae, the atlas and axis, represent a significant innovation in mammalian evolution. These structures support the weight of the head and enable intricate movements of the head and neck.
Thomas Furtado da Silva Netto +3 more
wiley +1 more source

Speculations on the origin and evolution of the genus Leishmania [PDF]

Memorias do Instituto Oswaldo Cruz, 2000
Recently two hypotheses have been proposed for the evolution of Leishmania involving respectively a Neotropical or Paleartic origin for the species. Here an alternative proposal on the phylogeny of Leishmania based on the major divisions within the genus
Hooman Momen, Elisa Cupolillo
doaj +1 more source

First records of the Neotropic genus Dilopharius Townes (Hymenoptera: Ichneumonidae: Ichneumoninae) in Florida [PDF]

, 2001
Dilopharius Townes (1966) ranges from the southern United States to Argentina. Its only described species is D. otomitus (Cresson 1868), previously known from Mexico and south Texas, but now recorded for the first time from ...
Porter, Charles C.
core

Neuroanatomical diversity in Teleocichla with new volumetric and histological insights into the encephalon of Teleocichla monogramma Kullander 1988

The Anatomical Record, EarlyView.
Abstract Teleocichla comprises small cichlids that inhabit the rapid streams of Amazonian rivers; however, there has been limited research on their encephalon morphology. This study examined the neuroanatomy of four species, focusing on volumetric measurements of their encephalon subregions, and providing a histological description of the encephalon of
Renan Leão‐Reis +4 more
wiley +1 more source

First notice of Therion from South America with description of two new species from Argentina and Bolivia (Hymenoptera: Ichneumonidae) [PDF]

, 1999
Therion Curtis (Ichneumonidae: Anomalinae) has a nearly cosmopolitan geographic distribution but has not previously been recorded from South America. In most Therion the tarsal claws are simple or have only a few inconspicuous teeth near the base.
Porter, Charles C.
core

Hepatic morphology and serum biochemical profile according to dry and rainy seasons in Pygocentrus nattereri (Characiformes: Serrasalmidae)

The Anatomical Record, EarlyView.
Abstract This study investigated the physiological and morphological adaptations of the liver of the carnivorous fish Pygocentrus nattereri (piranha) in response to seasonal variations (dry and rainy seasons) in the Brazilian Pantanal. The objective was to describe how the liver, a central organ in metabolic regulation, responds to environmental ...
Maria Eduarda Corona Garcia +9 more
wiley +1 more source

Vulnerability of global forest ecoregions to future climate change

Global Ecology and Conservation, 2019
The vulnerability of global forest ecoregions to future climate change represents a major threat to biodiversity and ecosystems worldwide. Therefore, it is important to investigate this vulnerability to improve the global conservation management network ...
Chun-Jing Wang, Zhi-Xiang Zhang, Ji-Zhong Wan +2 more
doaj +1 more source

Four new species of the spider genus Physocyclus Simon, 1893 (Araneae: Pholcidae) from Mexico, with updated taxonomic identification keys

European Journal of Taxonomy, 2022
Four new species of the spider genus Physocyclus Simon, 1893 are described from Mexico. Two species are described based on male and female adult specimens: Physocyclus mariachi sp. nov. and P. sikuapu sp. nov.
Garduño NOLASCO Samuel, Alejandro VALDEZ-MONDRAGÓN +1 more
doaj +1 more source

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