Results 81 to 90 of about 58,137 (262)

Rare and endangered segetal weed species in the Silesian Upland (s Poland) recorded in the last twenty years

open access: yesPlant Breeding and Seed Science, 2010
The paper presents a list of the rarest endangered segetal weeds recorded in the Silesian Upland during the previous two decades (1989-2009) with threat categories as well as their distribution concentration map. In the area researched, fifty red-listed taxa (i.e. species, subspecies, and forma) considered to be endangered on a regional and/or national
Beata Węgrzynek, Teresa Nowak
openaire   +1 more source

Density Estimates of Endangered Endemic Rodents Suggest Broader Impacts of Invasive Burmese Pythons Following a Category 4 Hurricane in the Florida Keys

open access: yesBiological Diversity, EarlyView.
Density estimates of two endangered rodent subspecies, endemic to Key Largo, Florida, USA. These findings illustrate the contrasting dynamics of two native species associated with the prevalence of invasive Burmese pythons and global change. The woodrats' decline emphasizes its potential risk of extinction as global change continues to impact island ...
Shauna M. Sayers   +5 more
wiley   +1 more source

Evaluation of Gonadal Tissue to Validate Size at Reproductive Maturity in Kemp’s Ridley Sea Turtles Found Stranded in Texas, USA

open access: yesDiversity, 2019
The Kemp’s ridley, Lepidochelys kempii, is the most endangered sea turtle in the world. Anthropogenic mortality of Kemp’s ridleys has been well documented in the Gulf of Mexico (GOM), USA.
Kathryn Stephenson Craven   +5 more
doaj   +1 more source

Predicting the Potential Distribution of Endangered Changnienia amoena S. S. Chien in China Based on Ensemble Modeling

open access: yes
Climate change has significant impacts on the distribution of orchids. The endemic and endan-gered orchids are more susceptible to climate change than widely distributed orchids. To date, lit-tle is known concerning the response of endangered Changnienia amoena, endemic to China, to different climate scenarios.
Ting Liu, Hanwei Cai, Guangfu Zhang
openaire   +1 more source

Species conservation profiles of a random sample of world spiders III: Oecobiidae to Salticidae

open access: yesBiodiversity Data Journal, 2018
Sini Seppälä   +10 more
doaj   +3 more sources

Sansevieria bangalalana sp. nov. (Asparagales, Asparagaceae), close to extinction in the wild, and five other narrowly endemic and threatened species of Sansevieria from Tanzania previously unknown to science

open access: yesEuropean Journal of Taxonomy
Six new species of Sansevieria are described from several regions of Tanzania, a country believed to harbour the highest diversity of Sansevieria species globally. Among these, Sansevieria bangalalana sp. nov. and S. chlorantha sp. nov.
Michael Burkart   +6 more
doaj   +1 more source

The influence of rivers on seabird foraging ecology

open access: yesBiological Reviews, EarlyView.
ABSTRACT Rivers act as vital arteries to the world's oceans, delivering fresh water and nutrients that sustain marine ecosystems. Globally, river flow increasingly is being altered by climate change and anthropogenic pressures; yet the significance of rivers to predatory marine species, such as seabirds, and the extent to which river‐related changes ...
Julia B. Morais   +2 more
wiley   +1 more source

Species conservation profiles of a random sample of world spiders II: Gnaphosidae to Nemesiidae

open access: yesBiodiversity Data Journal, 2018
Sini Seppälä   +10 more
doaj   +3 more sources

Extent, characteristics and policy applications of Key Biodiversity Areas

open access: yesBiological Reviews, EarlyView.
ABSTRACT A global standard for the identification of Key Biodiversity Areas (KBAs) was published 10 years ago to provide a unified set of criteria for identifying ‘sites of significance for the global persistence of biodiversity’. We review the initiative's origins, the KBA identification process, characteristics of the current network, threats, policy
Stuart H. M. Butchart   +57 more
wiley   +1 more source

Relationships among tissues, biofluids, and otolith selenium concentrations in wild female burbot (Lota lota)

open access: yesIntegrated Environmental Assessment and Management, EarlyView., 2023
Abstract In the Lake Koocanusa‐Kootenai River system (Montana, USA and British Columbia, Canada), selenium (Se) contamination has become an international concern and is suspected to contribute to the observed burbot (Lota lota) population collapse. Due to our limited ability to sample burbot in Lake Koocanusa for monitoring studies, we used a reference
Stephanie D. Graves   +6 more
wiley   +1 more source

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