Results 51 to 60 of about 888 (166)

Breeding records of 325 bird species from Peru over 21 years based on citizen science data

open access: yesEcological Research, Volume 39, Issue 5, Page 789-799, September 2024.
In this data paper, we report 1180 breeding records corresponding to 325 bird species for the period 2000–2021, through an in‐depth review of photo or video records from Peru, sourced from Macaulay Library and iNaturalist platforms. We determined the geographical distribution of the breeding records, described patterns of activity and nesting behavior (
Alexis Díaz   +6 more
wiley   +1 more source

Selection of den sites and chronology of denning by black bears in the eastern Sierra Nevada and western Great Basin

open access: yesEcology and Evolution, Volume 14, Issue 7, July 2024.
Selection of appropriate den sites for hibernation is an important strategy for American black bears (Ursus americanus) for both energy conservation and reproduction, because parturition occurs while females are occupying their dens. Our objectives were to identify which physical characteristics of the habitat influenced selection of den sites and what
Morgan E. Long   +5 more
wiley   +1 more source

How many species of algae are there? A reprise. Four kingdoms, 14 phyla, 63 classes and still growing

open access: yesJournal of Phycology, Volume 60, Issue 2, Page 214-228, April 2024.
Abstract To date (1 November 2023), the online database AlgaeBase has documented 50,589 species of living algae and 10,556 fossil species here referred to four kingdoms (Eubacteria, Chromista, Plantae, and Protozoa), 14 phyla, and 63 classes. The algae are the third most speciose grouping of plant‐like organisms after the flowering plants (≈382,000 ...
Michael D. Guiry
wiley   +1 more source

PTERIDOPHYTA

open access: yesBothalia: African Biodiversity & Conservation, 2000
A NEW COMBINATION AND NEW RECORDS FOR THE FLORA OF ...
J. P. Roux
doaj   +1 more source

Understanding the salt overly sensitive pathway in Prunus: Identification and characterization of NHX, CIPK, and CBL genes

open access: yesThe Plant Genome, Volume 17, Issue 1, March 2024.
Abstract Salinity is a major abiotic stress factor that can significantly impact crop growth, and productivity. In response to salt stress, the plant Salt Overly Sensitive (SOS) signaling pathway regulates the homeostasis of intracellular sodium ion concentration.
Biswa R. Acharya   +4 more
wiley   +1 more source

Mediterranean springs: Keystone ecosystems and biodiversity refugia threatened by global change

open access: yesGlobal Change Biology, Volume 30, Issue 1, January 2024.
Mediterranean spring ecosystems are unique habitats supporting a remarkable array of biodiversity and providing important ecological functions and ecosystem services. However, global change poses important threats to these freshwater ecosystems, such as changes in climate patterns and increasing human pressures like overexploitation and pollution.
M. Fernández‐Martínez   +16 more
wiley   +1 more source

Seis especies nuevas y dos nuevos registros de helechos (Pteridophyta) para Costa Rica

open access: yesRevista de Biología Tropical, 2001
Six new species of Pteridophyta from Costa Rica are described: Seis especies nuevas de Pteridophyta para Costa Rica son descritas: Dryopteris flaccisquama A. Rojas, Hypolepis lellingeri A. Rojas, Hypolepis moraniana A.
Alexander Fco. Rojas - Alvarado
doaj  

A checklist of Pteridophyta of the north-eastern Orange Free State

open access: yesBothalia: African Biodiversity & Conservation, 1986
A checklist of Pteridophyta recorded within a defined area of the north-eastern Orange Free State is presented. The geology, climate and vegetation of this area are discussed in brief.
J. P. Roux
doaj   +1 more source

Pteridophyta–Sinopteridaceae

open access: yesBothalia: African Biodiversity & Conservation, 2011
A new subspecies of Cheilanthes deltoidea from Gauteng and Limpopo, South Africa.
R. R. Klopper, A. E. van Wyk
doaj   +1 more source

PTERIDOPHYTA: PTERIDACEAE

open access: yesBothalia: African Biodiversity & Conservation, 2006
CHEILANTHES DELTOIDEA.
R. R. Klopper, P. Lemmer, J. Nel
doaj   +1 more source

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