Results 11 to 20 of about 2,659 (184)

True metabolizable energy of foods consumed by lesser scaup (Aythya affinis)

open access: yesWildlife Society Bulletin
The energy derived from available foods is an important factor used in conservation planning for migratory species. Estimating true metabolizable energy (TME) of available foods has become a common method for resource managers to increase reliability in ...
Lauren D. Larson   +5 more
doaj   +2 more sources

Assessing the Relationship Between Macroinvertebrate Metrics and Fine Sediment Index for Ecological Biomonitoring in the Little Akaki River, Addis Ababa, Ethiopia. [PDF]

open access: yesEcol Evol
Habitat quality had a positive correlation with percentage of Ephemeroptera, percentage of EOT, and Shannon diversity index (r = 0.833, r = 0.880, and r = 0.939, respectively). PSI had positive correlation with number of taxa, and ASPT‐ETHbios (r = 0.819, and r = 0.798, respectively). Most sites were heavily sedimented.
Adino A, Mengistou S.
europepmc   +2 more sources

Testing the Optimal Foraging Theory in a Generalist Feeder: The Case of Reintroduced European Pond Turtles and Its Impact on Macroinvertebrates Communities. [PDF]

open access: yesEcol Evol
In this study we investigated the macroinvertebrate (MI) communities in two newly created, man‐made ponds concurrently with the diet of captive‐bred European pond turtles that were translocated there. We aimed at assessing whether turtles were operating as generalist feeders, and if successive reintroductions of turtles would affect the overall MI ...
Meyer A   +6 more
europepmc   +2 more sources

Postglacial Echoes: Parasite Genomics Uncover Environmental Changes in Postglacial European Lakes. [PDF]

open access: yesMol Ecol
ABSTRACT Postglacial environmental changes have influenced biodiversity and species evolution, yet the genomic and demographic responses of parasites remain underexplored. This study investigates the population genetics and demographic history of the flatworm Phyllodistomum umblae, a generalist trematode at the definitive host level infecting Coregonus
Llaberia-Robledillo M   +7 more
europepmc   +2 more sources

Distribution, abundance, population structures, and potential impacts of the invasive snail, Tarebia granifera in aquatic ecosystems of north-eastern South Africa. [PDF]

open access: yesEcol Evol
The study investigates Tarebia granifera, a highly successful aquatic invader, in South Africa's Limpopo and Phongolo River systems. The study revealed that T. granifera dominates in habitats where it is present, negatively impacting native molluscan species. Interestingly, the study did not find significant correlations between T.
Gerber R   +4 more
europepmc   +2 more sources

Recent distribution of Sphaerium nucleus (Studer, 1820) (Bivalvia: Sphaeriidae) in the Czech Republic [PDF]

open access: yesMalacologica Bohemoslovaca, 2008
Recent data about the distribution of Sphaerium nucleus in the Czech Republic are summarized and used in an attempt to evaluate its conservation status.
Tereza Kořínková   +2 more
doaj   +1 more source

Moluscos aquáticos do Estado de Rondônia (Brasil), com especial referência ao gênero Biomphalaria Preston, 1910 (Pulmonata, Planorbidae) Freshwater mollusks from the State of Rondônia (Brazil), with special reference to the genera Biomphalaria Preston, 1910 (Pulmonata, Planorbidae)

open access: yesRevista de Saúde Pública, 1986
Foi realizado no Estado de Rondônia, Brasil, levantamento malacológico com o objetivo de estabelecer a distribuição geográfica dos moluscos aquáticos, com ênfase especial no gênero Biomphalaria. Foram pesquisados 11 municípios ao longo da rodovia BR-364,
Carlos E.A. Coimbra Júnior   +1 more
doaj   +1 more source

Current Classification of the Families of Coleoptera [PDF]

open access: yes, 2017
(excerpt) Several works on the order Coleoptera have appeared in recent years, some of them creating new superfamilies, others modifying the constitution of these or creating new families, finally others are genera1 revisions of the order.
de Viedma, M G, Nelson, M L
core   +3 more sources

The macroinvertebrate seedbank promotes community persistence in temporary rivers across climate zones [PDF]

open access: yes, 2013
1. Aquatic macroinvertebrates inhabiting temporary rivers are typically described as having low resistance to riverbed drying. However, little research has examined the ‘seedbank’ within dry riverbed sediments, which comprises aquatic life stages that ...
Datry, T, Stubbington, R
core   +2 more sources

Biology and immature stages of the clam-killing fly, Renocera pallida (Diptera: Sciomyzidae)

open access: yesEuropean Journal of Entomology, 2003
The larva of the Palaearctic Renocera pallida (Fallén, 1820) is confirmed as a predator of small species of bivalve molluscs of the family Sphaeriidae.
Jana HORSÁKOVÁ
doaj   +1 more source

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