immature ticks on wild birds and the molecular detection of a novel rickettsia strain in the ibitipoca state park, southeastern brazil. | birds are recognized hosts of ticks, especially for the immature stages which may harbor various species and strains of rickettsia. to explore landscapes inhabited by birds and their ticks would expand the knowledge on host-parasite relationships and the rickettsiae. the aim of this paper was to record the diversity of ticks collected on wild birds and assess the phylogenetic position of a novel rickettsia strain detected in immature ticks. birds were captured in the ibitipoca state park, locate ... | 2020 | 32643110 |
corrigendum to "phylogeography of the variable antshrike (thamnophilus caerulescens), a south american passerine distributed along multiple environmental gradients" [mol. phylogenet. evol. 148 (2020) 106810]. | | 2020 | 32619829 |
phylogeography of the variable antshrike (thamnophilus caerulescens), a south american passerine distributed along multiple environmental gradients. | the neotropics show a wealth of distributional patterns shared by many co-distributed species. a distinctive pattern is the so-called "circum-amazonian distribution," which is observed in species that do not occur in amazonia but rather along a belt of forested habitats spanning south and east of amazonia, the andean foothills, and often into the venezuelan coastal range and the tepuis. although this pattern is widespread across animals and plants, its underlying biogeographic mechanisms remain ... | 2020 | 32268201 |
experimental food supplementation increases reproductive effort in the variable antshrike in subtropical brazil. | food limitation may interact with nest predation and influence nesting patterns, such as breeding season length and renesting intervals. if so, reproductive effort should change with food availability. thus, when food is limited, birds should have fewer attempts and shorter seasons than when food is not limiting. here we experimentally test that increased food availability results in increased reproductive effort in a fragmented landscape in the variable antshrike (thamnophilus caerulescens) in ... | 2018 | 30416888 |