Results 11 to 20 of about 3,291 (171)

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

Ecol 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]

Ecol 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, Grac C, Labat F, Meka J, van der Zon KAE, Theissinger K, Georges JY.   +6 more
europepmc   +2 more sources

Aquatic top predator prefers terrestrial prey in an intermittent stream. [PDF]

Ecology
Ecology, Volume 106, Issue 1, January 2025.
Al-Jamal AM, Ruhi A, Mohammadi RM, Bogan MT, Fournier RJ.   +4 more
europepmc   +2 more sources

Paleopteran molecular clock: Time drift and recent acceleration. [PDF]

Ecol Evol
Constant evolution rates, which form the foundation of the strict molecular clock model, do not apply in the case of Paleoptera, highlighting a notable bias in the molecular clock hypothesis. The current biodiversity may be the outcome of a relatively recent, exponential increase in base substitution rates.
Osozawa S, Nel A.
europepmc   +2 more sources

Relative Effects of Eutrophication and Warming on Freshwater Ecosystems Across Ecological Levels. [PDF]

Glob Chang Biol
This experimental study explores the effects of global change on different ecological levels. We demonstrate that warming primarily impacts lower ecological levels, such as community composition, whereas eutrophication predominantly affects the most integrative ecological level, that is, ecosystem.
Marin V, Colas F, Boulêtreau S, Cucherousset J.   +3 more
europepmc   +2 more sources

Leveraging Massive Opportunistically Collected Datasets to Study Species Communities in Space and Time. [PDF]

Ecol Lett
We present a spatiotemporal joint species distribution model to analyse large‐scale opportunistically collected biodiversity data. Our model addresses variable detection probabilities across visits and species by modelling phenological patterns and by extending the use of latent variables to characterise observer‐specific detection and reporting ...
Fajgenblat M, Wijns R, De Knijf G, Stoks R, Lemmens P, Herremans M, Vanormelingen P, Neyens T, De Meester L.   +8 more
europepmc   +2 more sources

\u3ci\u3eAeshna Subarctica\u3c/i\u3e (Odonata: Aeshnidae) in Northwestern Wisconsin [PDF]

, 2018
Nine adult specimens of Aeshna subarctica, a boreal dragonfly typically associated with muskeg wetlands, were collected from Black Lake and Breitzman Lake in northwestern Wisconsin (Douglas County).
DuBois, Robert D, Johnson, Robbye, Putz, Shaun   +2 more
core   +2 more sources

Discovery of an Isolated Population of \u3ci\u3eAnax Longipes\u3c/i\u3e in Michigan (Odonata: Aeshnidae) [PDF]

, 2017
Anax longipes is a large aeshnid dragonfly previously unknown from Michigan. Adults and larvae were found in abundance at a series of experimental ponds within the E.S.
Kielb, Michael A, O\u27Brien, Mark F
core   +2 more sources

Richness and diversity of odonates of the agricultural college and research institute, Vazhavachanur, Tamilnadu, India

Acta Biologica, 2020
Investigations on the diversity of Odonata in and around the Agricultural College and Research Institute, Vazhavachanur, Tamil Nadu, India were studied. Eight locations were selected, of which sixteen Odonata species were recorded.
Vaithiyanathan Radhakrishnan, Ramanathan Arulprakash, Iyappan Parivarthani, Selvarasu Ponnivalavan, Mohan Priyadharshini, Muthaiyan Pandiyan   +5 more
doaj   +1 more source

First Records of \u3ci\u3eGomphaeschna Furcillata\u3c/i\u3e and \u3ci\u3eAnax Longipes\u3c/i\u3e in Wisconsin (Odonata: Aeshnidae) [PDF]

, 2017
(excerpt) The two new records of Odonata reported here for Wisconsin are north- western range extensions for each species. The genus Gomphaeschna Selys contains two species, antilope (Hagen) and furcillata (Say), the distributions of which are limited to
Tennessen, K. J
core   +2 more sources