Results 21 to 30 of about 1,956 (213)
River Research and Applications, Volume 38, Issue 9, Page 1585-1600, November 2022., 2022 Abstract The bullhead Cottus gobio is a small‐sized fish whose range extends over most of the European continent, and it is listed in Annex II of EU “Habitat” Directive for its great conservation interest. In the last decades, bullhead populations suffered local decline.
Luca Bonacina +2 more
wiley +1 more source
Benthic diatoms and some environmental conditions in three lowland streams [PDF]
, 2002 This article reports on the ecological preferences of benthic diatoms in relation to pH, conductivity and organic pollution-eutrophication and their tolerance spectrums. Three Pampean streams subjected to different human impacts were studied.
Gomez, Nora, Licursi, Magdalena
core +2 more sources
Scientia Marina, 2008 Potentially toxic species of the genus Pseudo-nitzschia were studied along the Spanish NW Mediterranean coast from January 2005 to May 2006. Observation in electron microscopy revealed the presence of Pseudo-nitzschia brasiliana, P.
Sonia Quijano-Scheggia +7 more
doaj +1 more source
Recruitment limitation in three large‐seeded plant species in a tropical moist forest
Biotropica, Volume 54, Issue 2, Page 418-430, March 2022., 2022 Recruitment limitation results from three mechanisms: (i) lack of seed sources (i.e., source limitation), (ii) failure of available seeds to reach recruitment sites (i.e., dispersal limitation), and (iii) failure of arrived seeds to establish at a location (i.e., establishment limitation).
Carol X. Garzon‐Lopez +5 more
wiley +1 more source
Modelling growth of Ruppia cirrhosa [PDF]
, 2000 The main objectives of this work were to synthesise information on the autoecology of Ruppia cirrhosa Petagna (Grande) in a mathematical model and to use the model to simulate its growth, production and harvest. Model parameters were allowed to vary as
Calado, Gonçalo, Duarte, Pedro
core +1 more source
Conservation Letters, Volume 14, Issue 4, July/August 2021., 2021 Abstract Large sharks shape ecosystems across their geographic ranges and have become a top research and conservation priority. Eastern North Pacific (ENP) white shark (Carcharodon carcharias) aggregations off the United States and Mexico are well described, but their population status is currently uncertain.
Daniel J. Madigan +3 more
wiley +1 more source
Comparison of the autoecology of Quercus robur L. and Q. petraea (Mattuschka) Liebl. stands in the Northwest of the Iberian Peninsula [PDF]
Annals of Forest Research, 2010 The purpose of the present work is to characterize the functioning of the ecosystems of semideciduous and deciduous Atlantic oaks in the northwest of the Iberian Peninsula. The studied species were: Quercus robur L. and Quercus petraea (Mattuschka) Liebl.
A. Rodriguez-Campos +3 more
doaj +2 more sources
EVOLUTIONARY AND ECOLOGICAL ASPECTS OF PLANT STRESS TOLERANCE
Юг России: экология, развитие, 2018 . Aim. The aim is to study the threshold sensitivity to salinization of the environment of individual isolated structures for evaluating the salt tolerance of plants. Methods.
Abdulmalik G. Yusufov
doaj +1 more source
Investigation on some autecology characteristics of Moringa peregrina (Forssk.) Fiori in south of Iran [PDF]
تحقیقات جنگل و صنوبر ایران, 2013 Moringa peregrina is a tree or shrub componend sub-tropical vegetation and extending from Dead sea and is scattered in Red sea and spread throughout northern Somalia and around the Arabian Peninsula to mouth of the Persian Gulf, Oman, UAE, Iran, Pakistan.
Hashem Keneshloo +2 more
doaj +1 more source
Lizards (Reptilia: Squamata) from the Caatinga, northeastern Brazil: Detailed and updated overview [PDF]
Vertebrate Zoology, 2022 The Caatinga is the largest seasonal dry tropical forest in South America and it has been historically neglected in terms of its biodiversity. Regarding lizards, different studies led to the current knowledge of diversity and endemism in Caatinga, but ...
Lucas Rafael Uchôa +5 more
doaj +3 more sources