Results 51 to 60 of about 1,548 (303)
Leucocoprinus rhodolepis (Agaricaceae: Basidiomycota), a new species from Brazilian semi-arid region
Revista Mexicana de Biodiversidad, 2022 A novel Leucocoprinus species was collected from the semi-arid region of Brazil in the Caatinga domain. Leucocoprinus rhodolepis is described based on morphological data.
Nathália U. Ferretti-Cisneros +2 more
doaj +1 more source
The mechanism of labor in nonhuman primates: A look inside
The Anatomical Record, EarlyView.Abstract While in humans, the flexed position of the fetus and its rotating course down the birth canal are well documented, in other primates the mechanism of labor is unknown. Despite the lack of comparative data, it is commonly assumed that the human obstetric mechanism is unique, and anthropologists have disputed when and why the transition to the ...
Melissa K. Stoller
wiley +1 more source
Biota Colombiana, 2008 Galatheidae and Chirostylidae are two of the most diverse and abundant families of decapod crustaceans, besides penaeid shrimps. These families contain 869 species around the world and live from shallow waters (less common), marine bottoms on continental
Margarita Fierro Rengifo +3 more
doaj +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
The Anatomical Record, EarlyView.Abstract The claspers are the copulatory organs in male elasmobranchs, responsible for directing the semen into the female cloaca (C). However, the microscopic morphology of the claspers remains poorly understood. This study describes the morphology of the claspers and clasper glands (CGs) of cururu stingray (Potamotrygon wallacei) at different ...
Matheus Samuel Cunha Braga +4 more
wiley +1 more source
Persistent Organic Pollutants in Neotropic Cormorants (Phalacrocorax brasilianus) Nesting along the Trinity River, Texas [PDF]
, 2018 The Trinity River is a historically polluted river with records of various contaminants including organochlorine pesticides and their metabolites (OCPs), polychlorinated biphenyls (PCBs), and Mercury (Hg) detected in contaminant studies of the Trinity ...
Sandoval, Christopher Enrique
core +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 +2 more
doaj +1 more source
Increased Abundance and First Breeding Record of the Neotropic Cormorant (Phalacrocorax brasilianus) on the Alluvial Plain of Mississippi [PDF]
, 2010 Phalacrocorax brasilianus (Neotropic Cormorant) has been observed with increasing frequency in the alluvial plain (Delta region) of Mississippi. In the past 6 years, 22 individuals have been observed in 20 separate sightings during spring and summer ...
DeVault, Travis L +5 more
core
Do birds select habitat or food resources? Nearctic-neotropic migrants in northeastern Costa Rica. [PDF]
, 2013 Nearctic-neotropic migrant birds need to replenish energy reserves during stopover periods to successfully complete their semiannual movements. In this study we used linear models to examine the habitat use of 11 migrant species in northeastern Costa ...
C John Ralph +8 more
core +1 more source
The Anatomical Record, EarlyView.Abstract The organization and function of reptilian excurrent ducts remain poorly characterized, particularly in Neotropical snakes. We provide the first integrative morphological, histochemical, immunohistochemical, and ultrastructural analysis of the proximal post‐testicular ducts of Crotalus durissus across reproductive stages.
Flávia Cappuccio de Resende +9 more
wiley +1 more source