Results 121 to 130 of about 91,402 (351)
Large palynological collections have been built over decades and contain vital information. However, they are often difficult to access and use effectively. What is the point of having such collections if they are not fully utilizable? To solve this problem, we digitized the Smithsonian palynological collection using both light and confocal microscopy.
Carlos Jaramillo +37 more
wiley +1 more source
How does fragmentation by small dams affect stream ichthyofauna in the upper Paraná River basin? [PDF]
Since the seminal publication of the River Continuum Concept (RCC), many studies have shown the importance of habitat and longitudinal changes on fish distribution, including for the Neotropical region.
Gilberto Nepomuceno Salvador +8 more
doaj +1 more source
Diversity and Abundance of Hymenopterous Parasitoids Associated with Anastrepha fraterculus (Diptera: Tephritidae) in Native and Exotic Host Plants in Misiones, Northeastern Argentina [PDF]
Some Major host species used by the tephritid fruit flies Anastrepha fraterculus (Wiede-mann) and Ceratitis capitata (Wiedemann), including Acca sellowiana (O. Berg) Burret, Campomanesia xanthocarpa O. Berg, Psidium guajava L.,
Aluja M. +22 more
core +1 more source
Brazil's diverse flora is under several threats, with many unique lineages facing extinction, particularly in biodiverse regions like the Cerrado and campo rupestre. This study sheds light on the conservation needs of Cambessedesia (Melastomataceae), an endemic genus with 95% of its species endangered, using an approach to rank and prioritise species ...
Najla Bastos Scheidegger +4 more
wiley +1 more source
Biodiversity is threatened by human activities, with extinction debt accumulating rapidly. Many of these activities change the connectivity of populations, fragmenting existing population systems or bringing previously isolated populations or species into contact.
Zhiqin Long +7 more
wiley +1 more source
Identification of Plasmodium spp. in Neotropical primates of Maranhense Amazon in Northeast Brazil.
In the Brazilian Amazon region, malaria caused by Plasmodium malariae is considered to be a zoonosis because of cross-transfer of the parasite between humans and Neotropical primates.
Mayra Araguaia Pereira Figueiredo +4 more
doaj +1 more source
To cope with highly stochastic and/or heterogeneous environmental conditions, animals must balance energy resource allocation across physiological processes. The digestive tract and brain exhibit structural variations under strong developmental and selective pressures that vary across environmental gradients both between and within species.
Yimei Yan +9 more
wiley +1 more source
Conservation Biological Control as an Important Tool in the Neotropical Region. [PDF]
Vargas G +3 more
europepmc +1 more source
ABSTRACT The Harpy Eagle (Harpia harpyja), one of the largest birds of prey in the world, is threatened with extinction throughout its entire area of occurrence in the Neotropics. While conservation efforts for the wild populations are crucial, it is also important to focus on ex situ conservation actions.
Mylena Kaizer +7 more
wiley +1 more source
The ant genus Sphinctomyrmex has been represented in the Neotropical Region until now by a single species, S. stali, known only from sparse localities in southeastern Brazil. Two new neotropical species are herein described, S. marcoyi sp. n.
Rodrigo M. Feitosa +3 more
doaj +1 more source

