Results 21 to 30 of about 223,621 (364)

An updated checklist of ants (Hymenoptera, Formicidae) of Bulgaria, after 130 years of research [PDF]

open access: yesBiodiversity Data Journal, 2022
The Bulgarian myrmecofauna is one of the richest in the Balkans. This is a result of both the physicogeographical and paleoecological features of the area, as well as relatively well-studied fauna.
Albena Lapeva-Gjonova, Vera Antonova
doaj   +3 more sources

Evolution of shell structure in exotic nuclei [PDF]

open access: yesReviews of Modern Physics, 2018
The atomic nucleus is a quantum many-body system whose constituent nucleons (protons and neutrons) are subject to complex nucleon-nucleon interactions that include spin- and isospin-dependent components.
T. Otsuka   +4 more
semanticscholar   +1 more source

Internal and External Dispersal of Plants by Animals: An Aquatic Perspective on Alien Interference

open access: yesFrontiers in Plant Science, 2018
Many alien plants use animal vectors for dispersal of their diaspores (zoochory). If alien plants interact with native disperser animals, this can interfere with animal-mediated dispersal of native diaspores.
Casper H. A. van Leeuwen
doaj   +1 more source

Dusky Langurs Trachypithecus obscurus (Reid, 1837) (Primates: Cercopithecidae) in Singapore: potential origin and conflicts with native primate species

open access: yesJournal of Threatened Taxa, 2020
The introduction of exotic species can have detrimental effects on local populations via factors such as resource competition and new threats from disease.
Andie Ang, Sabrina Jabbar, Max Khoo
doaj   +1 more source

QCD exotics [PDF]

open access: yesHyperfine Interactions, 2014
QCD-motivated models for hadrons predict an assortment of "exotic" hadrons that have structures that are more complex then the quark-antiquark mesons and three-quark baryons of the original quark-parton model. These include pentaquark baryons, the six-quark H-dibaryon, and tetra-quark, hybrid, and glueball mesons.
openaire   +2 more sources

The vulnerability of leaflitter ants to forest disturbances in the island of Puerto Rico, Greater Antilles

open access: yesNovitates Caribaea, 2019
Reduced biodiversity and high number of endemics characterize island ecosystems. Island natives and endemics are considered more vulnerable than continental species to exotic species invasions and habitat changes.
Miguel A. García
doaj   +1 more source

Preliminary acoustic analyses of the structure of Red-billed Leiothrix Leiothrix lutea (Scopoli, 1786) song samples from Northern Italy

open access: yesAvocetta, 2022
The authors present an introductory piece of research concerning the acoustic analysis of a set of song samples of Red-billed Leiothrix Leiothrix lutea from two regions of Northern Italy (Veneto, Liguria).
Luca Baghino, Sauro Giannerini
doaj   +1 more source

Exotic Atoms [PDF]

open access: yesPhysica Scripta, 2004
In this paper I review a number of recent results in the field of exotic atoms. Recent experiments or ongoing experiments with muonic, pionic and antiprotonic hydrogen, as well as recent measurement of the pion mass are described. These experiments provide information about nucleon-pion or nucleon-antinucleon interaction as well as information on the ...
openaire   +3 more sources

When pets become pests: the role of the exotic pet trade in producing invasive vertebrate animals

open access: yesFrontiers in Ecology and the Environment, 2019
Author(s): Lockwood, JL; Welbourne, DJ; Romagosa, CM; Cassey, P; Mandrak, NE; Strecker, A; Leung, B; Stringham, OC; Udell, B; Episcopio-Sturgeon, DJ; Tlusty, MF; Sinclair, J; Springborn, MR; Pienaar, EF; Rhyne, AL; Keller, R | Abstract: © 2019 The ...
J. Lockwood   +15 more
semanticscholar   +1 more source

Vascular plant taxa occurrences in exotic woodland and in natural and production forests on the Islands of São Miguel, Terceira and Pico (Azores) [PDF]

open access: yesBiodiversity Data Journal, 2023
The data presented here originated from field expeditions carried out between 2017 and 2018, within the framework of Forest-Eco2 project: "Towards an Ecological and Economic valorisation of the Azorean Forest". The project aimed to quantify the
Lurdes Borges Silva   +5 more
doaj   +3 more sources

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