Results 11 to 20 of about 35,780 (302)

Invasion of the tropical earthworm Pontoscolex corethrurus (Rhinodrilidae, Oligochaeta) in temperate grasslands [PDF]

PeerJ, 2016
The tropical earthworm Pontoscolex corethrurus (Rhinodrilidae, Oligochaeta) presents a broad distribution (e.g., 56 countries from four continents).
Diana Ortiz-Gamino, Paulino Pérez-Rodríguez, Angel I. Ortiz-Ceballos   +2 more
doaj   +2 more sources

Species distribution of Quercus (Fagaceae) along an altitude gradient, reveals zonation in a hotspot

Botan‪ical Sciences, 2021
Background: The genus Quercus has a keystone role in the temperate forests in the northern hemisphere; thus this offers an interesting opportunity to use it as a model to know altitudinal species richness patterns which could be used in further studies ...
Saddan Morales-Saldaña, Oscar Angel De Luna-Bonilla, Yareli Joselin Cadena-Rodríguez, Susana Valencia-A.   +3 more
doaj   +1 more source

Effects of slope aspect on altitudinal pattern of soil C:N:P stoichiometry in alpine forest of Tibet [PDF]

E3S Web of Conferences, 2021
Knowledge of altitudinal patterns in soil C, N and P distribution is important for understanding biogeochemical processes in mountainous forests, yet the influence of slope aspects on soil stoichiometry has been largely neglected in previous studies.
Li Jiangrong, Guo Qiqiang, Ma Heping, Zheng Weilie   +3 more
doaj   +1 more source

Composition of Necrophagous Insect Assemblages in Altitudinal Gradient of Central Chile. [PDF]

Insects
This study evaluated whether necrophagous arthropod assemblages, with emphasis on Calliphoridae (Diptera), differ among three sites in central Chile: Coastal (50 masl), Pre-mountain range (1000 masl), and High Andean (1800 masl). We analyzed differences in the abundance, richness, and community composition of arthropods associated with decomposed bait.
Marzolo Bown M, Thyssen PJ, Marrara Prado A, Villagra C.   +3 more
europepmc   +3 more sources

Effects of altitudinal gradient on benthic macroinvertebrate assemblages in two hydrological periods in a Neotropical Andean river

Ecología Austral, 2020
The altitudinal gradient and the hydrological dynamics affect the establishment and distribution of organisms in Andean rivers. Benthic macroinvertebrates, an essential component of lotic ecosystems, are useful to assess the influence of the altitudinal
Raúl F. García-Ríos, Dieison A. Moi, Oscar E. Peláez   +2 more
doaj   +1 more source

Altitudinal migration behavior patterns of birds on the eastern slope of Mt. Gongga, China

Avian Research, 2023
Many bird species in montane regions exhibit altitudinal migration behavior; however, altitudinal migration of birds is still understudied, especially in Asia. Mt. Gongga (7556 ​m) is the highest peak of the Hengduan Mountains in Southwest China.
Ian Haase, Zhengwei Liu, Shangmingyu Zhang, Zhehan Dong, Yuwen Cheng, Kaize Feng, Kexin Peng, Jianghong Ran, Yongjie Wu   +8 more
doaj   +1 more source

Epiphytic Orchid Diversity along an Altitudinal Gradient in Central Nepal. [PDF]

Plants (Basel), 2021
Epiphytic orchids are common in subtropical forests, but little is known about the factors that determine their diversity. We surveyed two sites (north-facing Phulchowki and south-facing Shivapuri hills), in the sub-tropical forest in the Kathmandu valley, central Nepal. Along five transects per site, spanning an altitudinal gradient of 1525–2606 m a.s.
Timsina B, Kindlmann P, Subedi S, Khatri S, Rokaya MB.   +4 more
europepmc   +6 more sources

Behavioural tuning in a tropical amphibian along an altitudinal gradient [PDF]

Biology Letters, 2017
Males of the coqui treefrog,Eleutherodactylus coqui, produce a distinct two-note ‘co-qui' advertisement call from sunset to midnight throughout most of the year. Previous work established that both the spectrotemporal aspects of the call and the frequency of highest inner-ear sensitivity change with altitude above sea level.
Sebastiaan W. F. Meenderink, Patricia M. Quiñones, Peter M. Narins   +2 more
openaire   +4 more sources

Drivers of Collembola assemblages along an altitudinal gradient in northeast China. [PDF]

Ecol Evol, 2022
AbstractAltitudinal changes in the diversity of plants and animals have been well documented; however, soil animals received little attention in this context and it is unclear whether their diversity follows general altitudinal distribution patterns. Changbai Mountain is one of few well‐conserved mountain regions comprising natural ecosystems on the ...
Xie Z, Sun X, Sun X, Lux J, Chen TW, Potapov M, Wu D, Scheu S.   +7 more
europepmc   +6 more sources

Altitudinal gradients, plant hybrid zones and evolutionary novelty [PDF]

Philosophical Transactions of the Royal Society B: Biological Sciences, 2014
Altitudinal gradients are characterized by steep changes of the physical and biotic environment that present challenges to plant adaptation throughout large parts of the world. Hybrid zones may form where related species inhabit different neighbouring altitudes and can facilitate interspecific gene flow and potentially the breakdown of ...
Abbott, R.J., Brennan, A.C.
openaire   +3 more sources