Results 121 to 130 of about 2,210 (278)

Phytogeography of the pacific coast of North America [Fitogeograf�a de la costa del pac�fico de Norteam�rica]

open access: yes, 2009
This study was designed to explore floristic variation along the Pacific coast from Cook Inlet, Alaska (61 30'N), to the southern tip of Baja California, Mexico, at 23 02'N.
Rodriguez, J.D.   +3 more
core   +1 more source

Ácaros oribátidos (Acari: Oribatei) del Parque Nacional de la isla de Coiba, Panamá

open access: yesRevista de Biología Tropical, 2004
Dentro del programa para el inventario de la fauna y flora del Parque Nacional de la Isla de Coiba (Panamá), se presenta un primer listado de los ácaros oribátidos (Acari: Oribatei) que habitan en el parque. El material objeto de este estudio, procede de
L. Subías   +4 more
doaj  

Availability of a Keystone Plant Resource Reduces Niche Overlap and Drives Distinct Species‐Specific Changes in Niche Breadth Among Small Rodents

open access: yesIntegrative Zoology, EarlyView.
We investigated how three rodent species respond to the seasonal availability of Araucaria angustifolia seeds. While Oligoryzomys spp. increased seed consumption and abundance during seed production, the more insectivorous Akodon paranaensis maintained a broader diet.
Adriana A. Perini, Emerson M. Vieira
wiley   +1 more source

Ellsworth P. Killip

open access: yesCaldasia, 1969
El 21 de noviembre del año pasado, y a la edad de 78 años, falleció en la ciudad de Redlands, California, U.S.A., el renombrado botánico estadunidense Ellsworth Payne Killip, reconocido especialista en la Flora Neotropical, particularmente la de las ...
Fernández Pérez Alvaro
doaj  

Female‐Biased Sexual Size Dimorphism and Its Potential Causes in Hairy‐Winged Bats

open access: yesIntegrative Zoology, EarlyView.
Based on the integration of molecular genetics, traditional and geometric morphology, and acoustic characteristics of hairy‐winged bats (a species that was historically misclassified into two species due to extreme craniodental divergence between the sexes) in multiple regions of China, we quantified the sexual size dimorphism (SSD) between males and ...
Yang Yue   +7 more
wiley   +1 more source

Flora das cangas da Serra dos Carajás, Pará, Brasil: Rutaceae

open access: yesRodriguésia
Resumo Rutaceae está representada na Serra dos Carajás por 20 espécies pertencentes a 15 gêneros. Apenas oito espécies foram registradas nas áreas de cangas, enquanto as demais estão presentes apenas nas florestas de terra firme ou em áreas transicionais
José Rubens Pirani   +1 more
doaj   +1 more source

Stable Isotope Analysis as a Tool to Prevent Illicit Wildlife Trade of Songbirds in Brazil

open access: yesAnimal Conservation, EarlyView.
Feather isotopes provide clear differences between wild and captive songbirds in Brazil. Combining multiple isotopes improved classification accuracy and revealed individuals falsely declared as captive‐bred. These results demonstrate the potential of isotope analysis to detect wildlife laundering in the bird trade.
Luiza Brasileiro   +4 more
wiley   +1 more source

Heterogeneity of xerophytic vegetation of limestone outcrops in a tropical deciduous forest region in southern México

open access: yes, 2004
The heterogeneity of xerophytic vegetation developing on limestone outcrops immersed in a tropical deciduous forest matrix was studied in Nizanda (S Mexico).
Meave del Castillo, Jorge Arturo   +1 more
core   +1 more source

Hidden Losses: Assessing the Risk of Coextinction Among Ectoparasitic Flies and Their Bat Host Species in Brazil

open access: yesAnimal Conservation, EarlyView.
The potential impact of bat species extinction on the number of their ectoparasitic fly species, based on interaction data for Brazil. As bat host species are removed over time, more connected species (green) would experience steeper declines and lead to greater ectoparasite losses when compared to a random extinction model (gray).
Nathan Lorenzo de Sena Gotti   +3 more
wiley   +1 more source

Pruning slash drives ambrosia beetle (Curculionidae: Scolytinae, Platypodinae) activity in Khaya grandifoliola C.DC.: Slash removal as a preventive management strategy Resíduos de poda aumentam a atividade de besouros da ambrosia (Curculionidae: Scolytinae, Platypodinae) em Khaya grandifoliola C.DC.: A remoção dos resíduos como estratégia preventiva de manejo

open access: yesAgricultural and Forest Entomology, EarlyView.
Slash retention increased ambrosia beetle activity in Khaya grandifoliola, acting as both breeding substrate and source of attractive volatile cues that promoted localized population buildup. Beetle attacks occurred only near retained slash, while no attacks were recorded in slash‐removal plots, demonstrating that residue removal effectively prevents ...
Luana de Souza Covre   +1 more
wiley   +1 more source

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