Reptiles

Living planet report 2022

Wildlife populations monitored across the globe have declined by a massive 69 per cent between 1970 and 2018, according to this WWF's Living Planet Report (LPR) 2022. Monitored wildlife populations - mammals, birds, amphibians, reptiles and fish - have seen a devastating 69% drop on average since 1970, according to …

Central bearded dragons change sex when the heat is on, study shows

Whether the Australian central bearded dragon grows up to be a male or a female depends not only on its genetics but also on the temperature of the nest in which it is incubated. What’s more, the females with male sex genes grow up to display many male behaviours – …

Rare wildlife discovered in biggest nature survey along Britain's coast

The biggest survey to date of nature along Britain’s coastline has uncovered a host of “wildlife firsts”. More than 3,400 species were recorded at 25 National Trust locations along the coastline of England, Wales and Northern Ireland in the charity’s largest ever wildlife survey. A handful have either been seen …

China Exclusive: Chinese scientists record new species in Tibet

The discovery of a new Himalayan forest frog clade in Tibet has been confirmed. It will join 12 other Chinese amphibian families. After five years of field research, scientists from Kunming Institute of Zoology under the Chinese Academy of Sciences confirmed the discovery of the rare frog that can breed …

Extremely Rare Fishing Snakes Discovered

Deep in the remote tropical forests of the northern Andes, scientists have discovered three new species of extremely rare snake. The discovery comes mere weeks after a separate team announced the discovery of a closely related snake in southwestern Ecuador. Taken together, the four newfound reptiles double the number of …

A star attraction: The illegal trade in Indian Star Tortoises

We report on illegal international trade in Indian Star Tortoises (Geochelone elegans), with a particular focus on India and Thailand.Within India, this species has received protection as a Schedule IV list species of the Wildlife (Protection) Act 1972 for over 40 years. This study documents the illegal trade of 55,000 …

Climate Change and Lizards: Reproduction Strategy May Need to Change, Researchers Say

In an attempt to adjust to increasing climate temperatures, common lizards may start breeding more frequently but also start dying off at a younger age. To better understand retilian response to climate change, an international team of researchers closely examined how a warmer climate of just two-degrees celsius would affect …

Live fast, die young: Experimental evidence of population extinction risk due to climate change

Evidence has accumulated in recent decades on the drastic impact of climate change on biodiversity. Warming temperatures have induced changes in species physiology, phenology, and have decreased body size. Such modifications can impact population dynamics and could lead to changes in life cycle and demography. More specifically, conceptual frameworks predict …

Description of a new Galapagos Giant Tortoise species (Chelonoidis; Testudines: Testudinidae) from Cerro Fatal on Santa Cruz Island

The taxonomy of giant Galapagos tortoises (Chelonoidis spp.) is currently based primarily on morphological characters and island of origin. Over the last decade, compelling genetic evidence has accumulated for multiple independent evolutionary lineages, spurring the need for taxonomic revision. On the island of Santa Cruz there is currently a single …

Marine life 'halves in 45 years': Overfishing, climate change and pollution blamed for 'potentially catastrophic' decline

THE number of fish, turtles and other wildlife in the world’s oceans has halved in decades, conservationists warn. Overfishing, pollution and changing climate are blamed for the ‘potentially catastrophic’ decline in marine life. From the temperate UK waters to tropical coral reefs, the planet’s seas are emptying fast, the World …

Infectious Diseases: Wildlife Disease Reporting System Launched

Scientists studying diseases threatening amphibian, reptile and fish populations now can report findings on a new online portal. This new wildlife disease reporting system is called the Global Ranavirus Reporting System (GRRS) and was developed by researchers from the University of Tennessee Institute of Agriculture (UTIA). Researchers from Purdue University …

Geographic risk assessment reveals spatial variation in invasion potential of exotic reptiles in an invasive species hotspot

Invasive species are among the primary threats to biodiversity and risk assessment is one problem-solving approach that can prioritize and guide efforts to reduce the negative consequences of invasion. We used a nichemodeling framework to conduct a geographic risk assessment of exotic reptiles in the state of Florida, USA, a …

Climate Change: Lizard Embryos Die When Subjected To Lethal Temperatures

Researchers have made a disturbing discovery about the impact of climate change on North American lizards. Due to high temperatures of 110 degrees Fahrenheit, within minutes, lizard embryos die due to immobility and their inability to seek proper shade. When their surrounding soil becomes too hot, their dwelling simply becomes …

Bees naturally vaccinate their babies: study

When it comes to vaccinating their babies, bees don't have a choice - they naturally immunise their offspring against specific diseases found in their environments, scientists say. Researchers from Arizona State University, University of Helsinki, University of Jyvaskyla and Norwegian University of Life Sciences studied a bee blood protein called …

Climate Change: Male Dragon Lizards Turn into Females with Higher Temperatures

Climate change may be turning male lizards into females. Scientists have examined Australia's bearded dragon lizards and have found that temperature plays a key role in switching a lizard's sex rapidly from one to another. "We had previously been able to demonstrate in the lab that when exposed to extreme …

Lizard sex change: Bearded dragons susceptible to climate-induced sex reversal

Wild Australian bearded dragons are susceptible to climate-induced sex change when in the egg, a study has found. Domesticated lizards have been proven to be prone to climate-induced sex reversal before but the report, published in Nature, documents the swap happening in the wild for the first time, which is …

Sex reversal triggers the rapid transition from genetic to temperature-dependent sex

Sex determination in animals is amazingly plastic. Vertebrates display contrasting strategies ranging from complete genetic control of sex (genotypic sex determination) to environmentally determined sex (for example, temperature-dependent sex determination). Phylogenetic analyses suggest frequent evolutionary transitions between genotypic and temperature-dependent sex determination in environmentally sensitive lineages, including reptiles. These transitions …

Persistence and dispersal in a Southern Hemisphere glaciated landscape: the phylogeography of the spotted snow skink (Niveoscincus ocellatus) in Tasmania

The aim of this research was to identify the effects of Pleistocene climate change on the distribution of fauna in Tasmania, and contrast this with biotic responses in other temperate regions in the Northern and Southern Hemisphere that experienced glacial activity during this epoch. This was achieved by examining the …

The Earth stands on the brink of its sixth mass extinction and the fault is ours

Life on Earth is in trouble. That much we know. But how bad have things become – and how fast are events moving? How soon, indeed, before the Earth’s biological treasures are trashed, in what will be the sixth great mass extinction event? This is what Gerardo Caballos of the …

Accelerated modern human–induced species losses: Entering the sixth mass extinction

The oft-repeated claim that Earth’s biota is entering a sixth “mass extinction” depends on clearly demonstrating that current extinction rates are far above the “background” rates prevailing in the five previous mass extinctions. Earlier estimates of extinction rates have been criticized for using assumptions that might overestimate the severity of …

New species discovered in Mekong during 2014 studies

HCM CITY (VNS) — A bat with nightmarish fangs (Hypsugo dolichodon), the world's second longest insect (Phryganistria heusii yentuensis) and a colour-changing thorny frog (Graciaxal lumarius) were among the 70 new species found in Viet Nam in 2014, according to a report from the World Wide Fund for Nature (WWF). …

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