Results 101 to 110 of about 91,402 (351)

Stratified sampling enhances the understanding of bat–fruit networks in the southern Atlantic Forest

open access: yesOikos, EarlyView.
Few studies have sought to understand the vertical patterns of bat–fruit systems, and therefore, it is not possible to evaluate whether interpretations based on data collected from a single stratum adequately represent the interaction patterns of this system. In this context, we evaluated the dissimilarity in the assemblage of frugivorous bats, plants,
Karolaine Porto Supi   +3 more
wiley   +1 more source

Couples in phoretic copulation, a tool for male-female association in highly dimorphic insects of the wasp genus Dissomphalus Ashmead (Hymenoptera: Bethylidae)

open access: yesZoologia (Curitiba)
It is difficult to make reliable sex associations in several species of Hymenoptera due to sexual dimorphism. Only a few species of the flat wasp genus Dissomphalus Ashmead, 1893 have had their sexes associated, since females are rarely collected and ...
Celso O. Azevedo   +4 more
doaj   +1 more source

Four new species of the Aleiodes compressor Herrich-Schäffer species-group (Hymenoptera: Braconidae: Rogadinae) from South America

open access: yesRevista Peruana de Biología, 2016
Four new species of the Aleiodes compressor (Herrich-Schäffer) species-group from the Neotropical Region are described and illustrated: Aleiodes segakiato sp. nov. and A. lamasi sp. nov. from Peru, A. macro sp. nov. from Argentina, and A. palmito sp. nov.
Lidia Sulca   +2 more
doaj   +1 more source

Origins of neotropical leafy Hepaticae [PDF]

open access: yes, 1990
The neotropical hepatic flora, predominantly constituted by members of the Jungermanniales and Metzgeriales, includes a disproportionate number of genera which are endemic (over 38) and a number which evidently originated here but have shown slight and ...
Schuster, Rudolf M.
core  

A case of intersex occurrence in Steindachneridion parahybae (Steindachner, 1877) (Siluriformes: Pimelodidae) under captivity condition: A cytogenetic and morphological study [PDF]

open access: yes, 2016
Poco se sabe sobre la biología reproductiva de Steindachneridion parahybae , una especie de teleósteo gonocorístico en peligro de extinción que habita la cuenca del río Paraíba do Sul y en éste trabajo se describe por primera vez la aparición de ...
Caneppele, Danilo   +4 more
core   +2 more sources

Floral resource diversity drives spatiotemporal variation in plant–pollinator network structure

open access: yesOikos, EarlyView.
Mechanisms underlying community assembly, including those related to species interactions, vary across space and time. Plant–pollinator networks exemplify these dynamics, where link rewiring and turnover mediate adaptations to environmental changes. Bees rely on diverse floral resources (e.g.
Caio S. Ballarin   +3 more
wiley   +1 more source

A new species of Heimbra Cameron, 1909 (Hymenoptera: Eurytomidae) from Eastern Uruguay

open access: yesEntomological Communications
A new species of Heimbra Cameron, 1909 (Hymenoptera, Eurytomidae) from eastern Uruguay, is described and illustrated. The species is diagnosed and differentiated from its congeners by the following combination of characters: mesopleuron contiguously ...
Nelson W. Perioto, Rogéria I. R. Lara
doaj   +1 more source

Linking regional and global functional trait data: insights from mammal communities in a fragmented Atlantic Forest landscape

open access: yesOikos, EarlyView.
Accurate functional trait data are essential for understanding ecosystem services and processes in fragmented landscapes. We evaluated whether the global EltonTraits 1.0 database adequately represents the functional structure of mammal communities in forest fragments and restoration sites in a highly fragmented Atlantic Forest landscape.
Maria F. R. Godoi   +5 more
wiley   +1 more source

Plant dispersal across the tropical Atlantic by wind and sea currents [PDF]

open access: yes, 2004
This review brings together evidence on the monophyly and ages of angiosperm lineages ranging across the tropical Atlantic with data on the direction, strength, and speed of sea currents and wind jets across that ocean. Mainly for pragmatic reasons (data
Renner, Susanne S.
core   +1 more source

Habitat type affects the diversity of dung beetle (Coleoptera: Scarabaeidae) assemblages in a neotropical mountainous region of Colombia [PDF]

open access: hybrid, 2023
Renato Portela Salomão   +3 more
openalex   +1 more source

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