Results 31 to 40 of about 915,309 (304)

Long-term species richness-abundance dynamics in relation to species departures and arrivals in wintering urban bird assemblages [PDF]

, 2019
Temporal dynamics of local assemblages depend on the species richness and the total abundance of individuals as well as local departure and arrival rates of species. We used urban bird survey data collected from the same 31 study plots and methods during
Jokimaki, Jukka, Suhonen, Jukka
core   +2 more sources

Landscape Composition and Forest Structure Shape Phyllostomid Bat Assemblages in the Atlantic Forest Remnants

Animals
Habitat loss and land-use intensification are major threats to biodiversity in the Brazilian Atlantic Forest, particularly for bat assemblages that provide key ecosystem services.
Ricardo Bovendorp, Eduardo Mariano-Neto, Albérico Queiroz, Deborah Faria   +3 more
doaj   +1 more source

A complex speciation-richness relationship in a simple neutral model [PDF]

, 2012
Speciation is the "elephant in the room" of community ecology. As the ultimate source of biodiversity, its integration in ecology's theoretical corpus is necessary to understand community assembly.
Elderkin, Mark F., LeBlanc, Nathalie M., Mallory, Mark L., Mittelhauser, Glen, Mockford, Stephen, Paquet, Julie, Pálsson, Snæbjörn, Robertson, Gregory J., Stewart, Donald T., Summers, Ron W., Tudor, Lindsay   +10 more
core   +2 more sources

Diversity of cereal pests (wheat and barley) grown in arid climate in Ziban region (provence of Biskra – southeastern Algeria)

Studia Universitatis Babeș-Bolyai. Biologia
This study investigated cereal pests (wheat and barley) grown in southeastern Algeria’s arid climate. Using three sampling techniques (yellow pan traps and Pitfall traps, a comprehensive collection of insect specimens was obtained, comprising 2526 ...
Nourelhouda BAKROUNE, Abdelmoneim Tarek OUAMANE, Meriem BOULTIF, Farida ` BETTICHE, Somia TORKI   +4 more
doaj   +1 more source

Velocity dispersion estimates of APM galaxy clusters [PDF]

, 1999
We present 83 new galaxy radial velocities in the field of 18 APM clusters with redshifts between 0.06 and 0.13. The clusters have Abell identifications and the galaxies were selected within 0.75 h$^{-1}$Mpc in projection from their centers.
Alonso, M. Victoria, Lambas, Diego G., Muriel, Hernan, Valotto, Carlos   +3 more
core   +2 more sources

Impact of land-use changes on ant communities and the retention of ecosystem services in Rashad District, Southern Kordofan, Sudan

South African Journal of Science, 2022
The ecological consequences of biodiversity loss are usually the reduction of ecosystem functions. These responses, however, differ depending on the type of land-use change and the ecological setting.
Khalid A.E. Eisawi, Indra P. Subedi, Tayyab Shaheen, Hong He   +3 more
doaj   +1 more source

Organoids in pediatric cancer research

FEBS Letters, EarlyView.
Organoid technology has revolutionized cancer research, yet its application in pediatric oncology remains limited. Recent advances have enabled the development of pediatric tumor organoids, offering new insights into disease biology, treatment response, and interactions with the tumor microenvironment.
Carla Ríos Arceo, Jarno Drost
wiley   +1 more source

Effects of Eucalyptus tree plantations on soil seed bank and soil physicochemical properties of Qimbaba forest

Cogent Food & Agriculture, 2019
Qimbaba, a prioritized forest area in the northwest of Ethiopia. However, it is experiencing deforestation that limits restoration possibilities. Hence, a detailed assessment of soil seed bank composition and regeneration potential could permit to ...
Getachew Kassa, Eyayu Molla, Abrham Abiyu   +2 more
doaj   +1 more source

Steady turnover in a bird community in a periurban landscape in Northern Italy: a look at the change in species richness over time

Rivista Italiana di Ornitologia - Research in Ornithology, 2022
From November 2017 until February 2022, with a partial interruption during 2020 linked to the COVID 19 pandemic, the bird community was monitored in a 30 hectares periurban plot in north-western Lombardy, in the province of Varese.
Fabio Saporetti
doaj   +1 more source

Species richness and beta-diversity of aquatic macrophytes assemblages in three floodplain tropical lagoons: evaluating the effects of sampling size and depth gradients [PDF]

, 2002
Using aquatic macrophyte data gathered in three lagoons of the Paraná River floodplain we showed a strong effect of sample size on species richness. Incidence-based species richness estimators (Chao 2, jackknife 1, jackknife 2, incidence-based coverage ...
Bini, L., Souza, D., Thomaz, S.
core