Results 21 to 30 of about 17,376 (216)

Morphological Comparison of the Chesapeake Logperch Percina bimaculata with the Logperch Percina c. caprodes and Percina c. semifasciata in Pennsylvania

open access: yesFishes, 2023
The Chesapeake logperch, Percina bimaculata (Halderman) has a disjunct distribution when compared to other species in the subgenus Percina. Members of this subgenus in Pennsylvania include Percina caprodes caprodes (Rafinesque), Percina caprodes ...
Jay R. Stauffer   +3 more
doaj   +1 more source

Corytophanes cristatus [PDF]

open access: yes, 2004
Number of Pages: 6Integrative BiologyGeological ...
McCranie, James R.   +2 more
core   +1 more source

ZOOGEOGRAPHY AND EVOLUTION [PDF]

open access: yesEvolution, 1966
Many biologists have recognized that most of the evolutionary experiments made by nature are failures in the sense that they do not survive long and do not give rise to continuing phyletic lines. It has been estimated that, of all species that have lived on the earth, less than one per cent are now living, and it has been stated: "There is no way to ...
openaire   +2 more sources

Zoogeografia marinha do Brasil: I. Considerações gerais sobre o método e aplicação a um grupo de crustáceos (Paguros: Crustácea Decápoda, super-famílias Paguroidea e Coenobitoidea)

open access: yesBrazilian Journal of Oceanography, 1980
The present paper is the first of a series dealing with marine zoogeography of Brazil. The Brazilian marine fauna has been well worked only recently, and the contributions on the zoogeography of various groups are in dependence of conclusions of ...
Petrônio Alves Coelho   +1 more
doaj   +1 more source

'Bellography': Life and Contributions of Ross and Joyce Bell, two New England Naturalists [PDF]

open access: yes, 2011
The lives and contributions of Ross and Joyce Bell are described with particular attention to studies of invertebrate natural history in the state of Vermont and carabid beetles of several groups, including the world rhysodine fauna. Their work, all done
Ball, George   +3 more
core   +3 more sources

Rana blairi [PDF]

open access: yes, 1992
Number of Pages: 6Integrative BiologyGeological ...
Brown, Lauren E.
core   +1 more source

Cladocera remains from sediments of Kilometrovoe and Kotovo lakes, Kharbey system (Bolshezemelskaya tundra)

open access: yesTransactions of the Karelian Research Centre of the Russian Academy of Sciences, 2015
The results of the paleobiological analyses of the Cladocera community of the Kilometrovoe and Kotovo lakes from Kharbey lakes' system (Bolshezemel'skaya tundra) are presented in our work.
Larisa Frolova, Aisylu Ibragimova
doaj   +1 more source

New Records of Antarctic Tardigrada with Comments on Interpopulation Variability of the Paramacrobiotus fairbanksi Schill, Förster, Dandekar and Wolf, 2010

open access: yesDiversity, 2020
Studies on Antarctic tardigrades started at the beginning of the twentieth century and have progressed very slowly and ca. 75 tardigrade species are known from this region.
Łukasz Kaczmarek   +6 more
doaj   +1 more source

Genetic characterization of flea-derived Bartonella species from native animals in Australia suggests host-parasite co-evolution [PDF]

open access: yes, 2011
Fleas are important arthropod vectors for a variety of diseases in veterinary and human medicine, and bacteria belonging to the genus Bartonella are among the organisms most commonly transmitted by these ectoparasites.
Adams, P.J.   +8 more
core   +2 more sources

Considering the Geographic Diversity of Natural Enemy Traits in Biological Control: A Quantitative Approach Using Orius Predators as an Example

open access: yesDiversity, 2022
The desirable characteristics of effective natural enemies and the causes for failure of biological control efforts have been discussed extensively in the literature, yet predicting which collection site may yield efficient natural enemies remains a ...
Tarryn Schuldiner-Harpaz, Moshe Coll
doaj   +1 more source

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