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Citizen scientists help expose presence of invasive Asian bamboo longhorn beetle in Europe


Credit: Stephen Rolls
A worryingly high number of Asian bamboo longhorn beetles (
Chlorophorus annularis) turn out to have been emerging across Europe for about a century already, finds an international research team, headed by researchers from the Center of Natural History, University of Hamburg, Germany. Curiously, the recent records of the invasive, non-native to the Old Continent species are mostly sourced from citizen scientists and online platforms, which proves the power of involving the public in species monitoring. The study is published in the open-access, peer-reviewed scientific journal
In our globalised world, which has already become victim to climate change and biodiversity loss, non-native species present a further threat to our ecosystems. Thus, the rising accounts of newly recorded alien species are of serious concern to both scientists and (inter)national institutions. However, surveying non-native species remains limited to a small fraction of spec ....

Matthias Seidel , University Of Hamburg , Natural History , Old Continent , Southeast Asia , Ecology Environment , Pollution Remediation , Population Biology , Zoology Veterinary Science , மத்தியாஸ் சீடல் , பல்கலைக்கழகம் ஆஃப் ஹாம்பர்க் , இயற்கை வரலாறு , பழையது கண்டம் , தென்கிழக்கு ஆசியா , சூழலியல் சூழல் , பொல்யூஶந் பரிகாரம் , பாப்யுலேஶந் உயிரியல் , ஸுவாலஜீ கால்நடை அறிவியல் ,

Warming climate slows tropical birds' population growth rates


Credit: Monte Neate-Clegg
The mountain forests of Tanzania are more than 9,300 miles away from Salt Lake City, Utah. But, as in eastern Africa, the wild places of Utah depend on a diversity of birds to spread seeds, eat pests and clean up carrion. Birds keep ecosystems healthy. So if birds in Tanzania are in trouble in a warming climate, as found in a recent study by University of Utah researchers, people in Utah as well as in the African tropics should pay attention.
In a new study published in
Global Change Biology, doctoral student Monte Neate-Clegg and colleagues tracked the demographics of 21 bird species over 30 years of observations from a mountain forest in Tanzania. For at least six of the species, their population declined over 30 years could be most attributable to rising temperatures an effect of a warming world. Smaller birds, as well as those that live at the lower part of their elevation range, were at higher risk for slowed population growth. ....

Salt Lake City , United States , Usambara Mountains , University Of Utah , William Newmark , Monte Neate Clegg , Victor Mkongewa , Natural History Museum Of Utah , Global Change Biology , Natural History Museum , West Usambara Mountains , Ecology Environment , Population Biology , Climate Change , உப்பு ஏரி நகரம் , ஒன்றுபட்டது மாநிலங்களில் , பல்கலைக்கழகம் ஆஃப் உட்டா , வில்லியம் புதிய குறி , மான்டே சுத்தமாக கிளெக் , இயற்கை வரலாறு அருங்காட்சியகம் ஆஃப் உட்டா , உலகளாவிய மாற்றம் உயிரியல் , இயற்கை வரலாறு அருங்காட்சியகம் , சூழலியல் சூழல் , பாப்யுலேஶந் உயிரியல் , காலநிலை மாற்றம் ,

Two species and a single name: 'Double identity' revealed in a venomous banana spider


Credit: N. Hazzi
Spiders from the genus Phoneutria - also known as banana spiders - are considered aggressive and among the most venomous spiders in the world, with venom that has a neurotoxic action. These large nocturnal spiders usually inhabit environments disturbed by humans and are often found in banana plantations in the Neotropical region.
One of these spiders,
P. boliviensis, is a medically important species widely distributed in Central and South America, whose behaviour, habitat, venom composition, toxicity and bites on humans have already been paid considerable attention in previous research work. Nevertheless, after examining a large pool of museum specimens, biologists from The George Washington University (N. Hazzi and G. Hormiga) began to wonder if samples named ....

United Kingdom , United States , Costa Rica , Comisaria Del Vichada , Nicolasa Hazzi , Gustavo Hormiga , George Washington Universityn Hazzi , South America , George Washington University , Central America , Population Biology , Zoology Veterinary Science , ஒன்றுபட்டது கிஂக்டம் , ஒன்றுபட்டது மாநிலங்களில் , கோஸ்டா ரிக்கா , குஸ்டாவோ ஹார்மிகா , தெற்கு அமெரிக்கா , ஜார்ஜ் வாஷிங்டன் பல்கலைக்கழகம் , மைய அமெரிக்கா , பாப்யுலேஶந் உயிரியல் , ஸுவாலஜீ கால்நடை அறிவியல் ,