Results 41 to 50 of about 5,550 (222)

Descripción del ensamblaje de macroinvertebrados acuáticos, asociados a hojarasca y su relación con variables físicas, en Quebrada Ancha, provincia de Colón, Panamá, en el periodo 2018-2019

open access: yesTecnociencia
El estudio se realizó en Quebrada Ancha (Colón), de octubre de 2018 a junio de 2019, con el objetivo de: 1) describir el ensamblaje de macroinvertebrados asociados a hojarasca y 2) relacionar el ensamblaje con las variables físicas.
Yolanda Águila S   +2 more
doaj   +1 more source

Prolonged low flows and non‐native fish operate additively to alter insect emergence in mountain streams

open access: yesLimnology and Oceanography, Volume 70, Issue S2, Page S377-S391, December 2025.
Abstract Climate‐induced flow alteration is decreasing snowpack and advancing snowmelt, subjecting mountain streams to longer low‐flow periods. Yet, anticipating how stream ecosystems respond to prolonged low flows remains challenging because distinct trophic levels can respond differently, and non‐native predators can dampen or amplify responses. Here,
Charlotte Evangelista   +5 more
wiley   +1 more source

Far From Roads, Challenges Arise: Unravelling Knowledge Gaps in the Occurrence of Cave‐Restricted Species on the African Continent

open access: yesAfrican Journal of Ecology, Volume 63, Issue 8, December 2025.
ABSTRACT Understanding patterns of biodiversity distribution is fundamental for ecology, biogeography, and conservation. However, persistent challenges arise from the inaccessibility of many regions and habitats. Subterranean environments, in particular, host highly distinctive and specialised faunal assemblages, yet their investigation is hindered by ...
Lais Furtado Oliveira   +3 more
wiley   +1 more source

Sublittoral meiobenthic assemblages from disturbed and non-disturbed sediments in the Balearics

open access: yesScientia Marina, 2000
Qualitative and quantitative differences in species composition of meiobenthic communities illustrate the differences among various taxonomic assemblages in the Balearic Islands (Western Mediterranean) analysed by means of multivariate analysis.
S. Deudero, M. Vincx
doaj   +1 more source

The impact of significant input of fine sediment on benthic fauna at tributary junctions: a case study of the Bermejo-Paraguay River confluence, Argentina [PDF]

open access: yes, 2014
This study examines the morphological features, suspended sediment inputs and hydraulic conditions within a large river in association with ecological patterns before and after a tributary confluence.
Amsler, Mario L.   +8 more
core   +2 more sources

Biodiversity of macrozoobenthos in a large river, the Austrian Danube, including quantitative studies in a free-flowing stretch below Vienna: a short review [PDF]

open access: yes, 2005
The Danube is ca. 2850 km in length and is the second largest river in Europe. The Austrian part of the Danube falls 156 metres in altitude over its 351 km length and, since the early 1950s, the river has been developed into a power-generating waterway ...
Fesl, Christian, Humpesch, Uwe
core  

First records of Cotylea (Polycladida, Platyhelminthes) for the Atlantic coast of the Iberian Peninsula [PDF]

open access: yes, 2014
A study of polyclad fauna of the Atlantic coast of the Iberian Peninsula was carried out from 2010 to 2013. The paper reports nine new records belonging to three Cotylean families: the family Euryleptidae Lang, 1884, Pseudocerotidae Lang, 1884 and the ...
Almón, Bruno   +3 more
core   +3 more sources

Ecological pathways connecting riverine drought to community change across space and time

open access: yesEcological Monographs, Volume 95, Issue 3, August 2025.
Abstract Climate change is intensifying droughts via reduced snowpack and accelerated snowmelt in high mountains globally, altering community structure in snow‐dependent rivers. To predict impending ecological change in rivers, we must understand the importance of the abiotic and biotic mechanisms connecting hydrologic change to biodiversity change and
Kyle Leathers   +4 more
wiley   +1 more source

The parasitic turbellarian Urastoma cyprinae (Platyhelminthes: Urastomidae) from blue mussel Mytilus galloprovincialis in Spain: occurrence and pathology [PDF]

open access: yes, 1994
8 pages, 8 figures, 2 tables.The turbellarian Urastoma cyprinae (Graff, 1882) Graff, 1903 was found inhabiting the mantle cavity between the lamellae of the demibranchs of mussels Mytilus galloprovincialis Lamarck cultured in Galicia (NW Spain ...
Cáceres-Martínez, J.   +3 more
core   +1 more source

Different processes and constraints drive the assembly of deep‐sea hydrothermal vent and sunken wood communities

open access: yesEcosphere, Volume 16, Issue 8, August 2025.
Abstract Niche processes mainly dictate the successful establishment and coexistence of species along gradients of community drivers such as energy availability and environmental stress. Deep‐sea chemosynthetic habitats such as hydrothermal vents and wood falls show concomitant gradients of energy availability and stress because productivity is fueled ...
Joan M. Alfaro‐Lucas   +9 more
wiley   +1 more source

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