* . *
  • About
  • Advertise
  • Privacy & Policy
  • Contact
Monday, September 8, 2025
Earth-News
  • Home
  • Business
  • Entertainment
    Monumental Sports & Entertainment Sets Corporate Direction at Nasdaq – PR Newswire

    Monumental Sports & Entertainment Reveals Bold New Corporate Vision at Nasdaq

    The Secret to What Made ‘CarJack’ Work on As the World Turns – yahoo.com

    The Surprising Secret Behind ‘CarJack’s’ Success on As the World Turns

    Victor Garber on his viral “And Just Like That” toilet scene: ‘I was delighted to be doing something ridiculous’ (exclusive) – yahoo.com

    Victor Garber on his viral “And Just Like That” toilet scene: ‘I was delighted to be doing something ridiculous’ (exclusive) – yahoo.com

    Pendulum Announce Homecoming 2026 Australian Tour – yahoo.com

    Pendulum Announces Thrilling Homecoming Tour Across Australia in 2026

    ITV Studios Launches New Entertainment Label – Global Bulletin – IMDb

    ITV Studios Unveils Exciting New Entertainment Label

    TS Entertainment bringing Malibu Jack’s to former Owensboro mall – Lane Report

    TS Entertainment Launches Malibu Jack’s at Former Owensboro Mall Location

  • General
  • Health
  • News

    Cracking the Code: Why China’s Economic Challenges Aren’t Shaking Markets, Unlike America’s” – Bloomberg

    Trump’s Narrow Window to Spread the Truth About Harris

    Trump’s Narrow Window to Spread the Truth About Harris

    Israel-Gaza war live updates: Hamas leader Ismail Haniyeh assassinated in Iran, group says

    Israel-Gaza war live updates: Hamas leader Ismail Haniyeh assassinated in Iran, group says

    PAP Boss to Niger Delta Youths, Stay Away from the Protest

    PAP Boss to Niger Delta Youths, Stay Away from the Protest

    Court Restricts Protests In Lagos To Freedom, Peace Park

    Court Restricts Protests In Lagos To Freedom, Peace Park

    Fans React to Jazz Jennings’ Inspiring Weight Loss Journey

    Fans React to Jazz Jennings’ Inspiring Weight Loss Journey

    Trending Tags

    • Trump Inauguration
    • United Stated
    • White House
    • Market Stories
    • Election Results
  • Science
  • Sports
  • Technology
    Industry partner provides Ferris State Plastics Engineering Technology students with state-of-the-art equipment to gain in-demand skills – Ferris State University

    Industry Partner Equips Ferris State Plastics Engineering Students with Cutting-Edge Technology to Boost In-Demand Skills

    Health Technology Ecosystem – Centers for Medicare & Medicaid Services | CMS (.gov)

    Discover the Future of Health Technology: Innovations Revolutionizing Patient Care

    Coherent Joins LLNL’s STARFIRE Diode Technology Working Group to Advance Inertial Fusion Energy – GlobeNewswire

    Coherent Partners with LLNL’s STARFIRE Team to Drive Breakthroughs in Inertial Fusion Energy

    Gene Associated With Deadly Heart Disease in Golden Retrievers Identified – Technology Networks

    Breakthrough Discovery Uncovers Gene Behind Deadly Heart Disease in Golden Retrievers

    Monkey Island LNG Picks ConocoPhillips’ Liquefaction Technology – Hart Energy

    Monkey Island LNG Selects ConocoPhillips’ Advanced Liquefaction Technology for Next-Gen Energy Solutions

    Credo Technology Group Holding Ltd. (CRDO) Surpasses Q1 Earnings and Revenue Estimates – Yahoo Finance

    Credo Technology Group Surpasses Q1 Earnings and Revenue Expectations

    Trending Tags

    • Nintendo Switch
    • CES 2017
    • Playstation 4 Pro
    • Mark Zuckerberg
No Result
View All Result
  • Home
  • Business
  • Entertainment
    Monumental Sports & Entertainment Sets Corporate Direction at Nasdaq – PR Newswire

    Monumental Sports & Entertainment Reveals Bold New Corporate Vision at Nasdaq

    The Secret to What Made ‘CarJack’ Work on As the World Turns – yahoo.com

    The Surprising Secret Behind ‘CarJack’s’ Success on As the World Turns

    Victor Garber on his viral “And Just Like That” toilet scene: ‘I was delighted to be doing something ridiculous’ (exclusive) – yahoo.com

    Victor Garber on his viral “And Just Like That” toilet scene: ‘I was delighted to be doing something ridiculous’ (exclusive) – yahoo.com

    Pendulum Announce Homecoming 2026 Australian Tour – yahoo.com

    Pendulum Announces Thrilling Homecoming Tour Across Australia in 2026

    ITV Studios Launches New Entertainment Label – Global Bulletin – IMDb

    ITV Studios Unveils Exciting New Entertainment Label

    TS Entertainment bringing Malibu Jack’s to former Owensboro mall – Lane Report

    TS Entertainment Launches Malibu Jack’s at Former Owensboro Mall Location

  • General
  • Health
  • News

    Cracking the Code: Why China’s Economic Challenges Aren’t Shaking Markets, Unlike America’s” – Bloomberg

    Trump’s Narrow Window to Spread the Truth About Harris

    Trump’s Narrow Window to Spread the Truth About Harris

    Israel-Gaza war live updates: Hamas leader Ismail Haniyeh assassinated in Iran, group says

    Israel-Gaza war live updates: Hamas leader Ismail Haniyeh assassinated in Iran, group says

    PAP Boss to Niger Delta Youths, Stay Away from the Protest

    PAP Boss to Niger Delta Youths, Stay Away from the Protest

    Court Restricts Protests In Lagos To Freedom, Peace Park

    Court Restricts Protests In Lagos To Freedom, Peace Park

    Fans React to Jazz Jennings’ Inspiring Weight Loss Journey

    Fans React to Jazz Jennings’ Inspiring Weight Loss Journey

    Trending Tags

    • Trump Inauguration
    • United Stated
    • White House
    • Market Stories
    • Election Results
  • Science
  • Sports
  • Technology
    Industry partner provides Ferris State Plastics Engineering Technology students with state-of-the-art equipment to gain in-demand skills – Ferris State University

    Industry Partner Equips Ferris State Plastics Engineering Students with Cutting-Edge Technology to Boost In-Demand Skills

    Health Technology Ecosystem – Centers for Medicare & Medicaid Services | CMS (.gov)

    Discover the Future of Health Technology: Innovations Revolutionizing Patient Care

    Coherent Joins LLNL’s STARFIRE Diode Technology Working Group to Advance Inertial Fusion Energy – GlobeNewswire

    Coherent Partners with LLNL’s STARFIRE Team to Drive Breakthroughs in Inertial Fusion Energy

    Gene Associated With Deadly Heart Disease in Golden Retrievers Identified – Technology Networks

    Breakthrough Discovery Uncovers Gene Behind Deadly Heart Disease in Golden Retrievers

    Monkey Island LNG Picks ConocoPhillips’ Liquefaction Technology – Hart Energy

    Monkey Island LNG Selects ConocoPhillips’ Advanced Liquefaction Technology for Next-Gen Energy Solutions

    Credo Technology Group Holding Ltd. (CRDO) Surpasses Q1 Earnings and Revenue Estimates – Yahoo Finance

    Credo Technology Group Surpasses Q1 Earnings and Revenue Expectations

    Trending Tags

    • Nintendo Switch
    • CES 2017
    • Playstation 4 Pro
    • Mark Zuckerberg
No Result
View All Result
Earth-News
No Result
View All Result
Home Science

Lemur’s lament: When one vulnerable species stalks another

April 20, 2024
in Science
Lemur’s lament: When one vulnerable species stalks another
Share on FacebookShare on Twitter

Lemur's lament: When one vulnerable species stalks another

Diademed sifaka. Credit: Onja Ramilijaona

What can be done when one threatened animal kills another? Scientists studying critically endangered lemurs in Madagascar confronted this difficult reality when they witnessed attacks on lemurs by another vulnerable species, a carnivore called a fosa.

This dynamic can be particularly complex when the predation occurs in an isolated or poor-quality habitat, according to research from Washington University in St. Louis and the University of Antananarivo in Madagascar.

In the new paper published in Ecology and Evolution, researchers describe how they were observing small groups of critically endangered diademed sifaka lemurs (Propithecus diadema) at Betampona Strict Nature Reserve when the predator struck.

“We were conducting our daily behavioral observations when we came across a very unusual sight—a predation attempt by a fosa, which is the biggest predator in Madagascar,” said WashU’s Giovanna Bonadonna, a postdoctoral research associate in biological anthropology in Arts & Sciences and the study’s co-first author.

“What we saw was very rare,” Bondadonna said. “There are other small carnivores in Madagascar, but they are not big enough to be able to prey upon an adult diademed sifaka because they are among the biggest lemurs. There are not so many predators that could actually get them.”

With slender bodies and long tails, fosas (or fossas, Crytoprocta ferox) have many cat-like features. They are great climbers and are sometimes compared to small cougars, though they are actually part of the weasel family.

The fosa is categorized as vulnerable by the International Union for Conservation of Nature and Natural Resources, and is at risk of extinction, as are almost all of its lemur prey. Fosas also eat other small animals such as birds and rodents.

But they’re rarely caught in the act. Fosas are stealthy hunters. Researchers have mostly determined what fosas eat by examining bones and other evidence left behind in scat.

“We noticed that a female diademed sifaka that we were following after the first attack didn’t run away very far,” said Onja Ramilijaona, a Ph.D. candidate at the University of Antananarivo and the other co-first author of the paper. “Instead she stayed still and remained vigilant, looking at the fosa.”

Ramilijaona also documented the later discovery of the remains of another diademed sifaka, presumed to have been killed by a fosa because of the condition of the remains and because of the way that branches had been broken in the area. Signs indicated a struggle in the trees.

Lemur's lament: When one vulnerable species stalks another

Diademed sifaka, a critically endangered lemur in Madagascar. Credit: Onja Ramilijaona

The researchers also described other instances over a period of 19 months of observation when fosas appeared to stalk lemurs but were unsuccessful in bringing one down as food.

The impact of predation—combined with low reproductive rates and potentially high inbreeding of the lemur population of Betampona—could affect the survival of this species at this site, researchers said.

Created in 1927, Betampona was Madagascar’s first protected reserve and comprises about 22 square kilometers (about 5,400 acres) of rainforest on the east coast, surrounded by agricultural land. While the land itself is protected, this forest’s relatively small size and isolation mean that it can be difficult for plants and animals to continue to breed and survive at Betampona.

“Although Betampona is one of the best-protected reserves in Madagascar, its isolation from other viable forests with lemur populations has created a predicament in which the critically endangered lemurs cannot engage in typical dispersal patterns, leading to genetic and demographic isolation,” said Lisa Kelley, executive director of the Saint Louis Zoo Wildcare Institute. “The need to study these populations for a possible genetic management study became clear several years back, once there were indications that there were few infant births and even fewer infant survivals.”

The Saint Louis Zoo and the Missouri Botanical Garden have conducted work at Betampona since the 1980s with the Madagascar Flora and Fauna Group, an international nonprofit, non-governmental organization that enables institutions to collaborate for the united purpose of conserving Madagascar’s biodiversity. Washington University, the Saint Louis Zoo and the Missouri Botanical Garden are also partners in the Living Earth Collaborative.

“These most recent observations of fosa attacks are especially troubling, as the observation of predation attacks, especially by the elusive fosa, are very rare,” Kelley said.

“It leads to questions of why the fosa are so bold to predate on lemurs in front of humans, and whether the fosa leave Betampona to hunt elsewhere and then return, or whether they are targeting the lemurs within the reserve,” she said. “It is an incredible scenario in which you have a vulnerable species potentially over-predating on several critically endangered species.”

Senior authors of the study include Krista Milich and Emily Wroblewski, both assistant professors in the Department of Anthropology in Arts & Sciences at Washington University.

“This population of diademed sifakas is already in bad shape,” Bonadonna said. “There is a huge predation pressure that was underestimated until we did this behavioral study. We were able to highlight inbreeding and other factors that may be behind the fact that this population cannot thrive at Betampona.

“It’s not that the fosa is the bad guy,” Bonadonna said. “It’s also in need of conservation. This study really highlights how complicated it can be. Human activities lead to changes in dynamics within ecosystems, having cascading effects beyond even what people realize. Despite the effort to conserve one species, it’s really the ecosystem and the balance of that ecosystem that is at stake once the habitat is compromised.”

More information:
G. Bonadonna et al, Response of diademed sifaka (Propithecus diadema) to fosa (Cryptoprocta ferox) predation in the Betampona Strict Nature Reserve, Madagascar, Ecology and Evolution (2024). DOI: 10.1002/ece3.11248

Citation:
Lemur’s lament: When one vulnerable species stalks another (2024, April 20)
retrieved 20 April 2024
from https://phys.org/news/2024-04-lemur-lament-vulnerable-species-stalks.html

This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no
part may be reproduced without the written permission. The content is provided for information purposes only.

>>> Read full article>>>
Copyright for syndicated content belongs to the linked Source : Phys.org – https://phys.org/news/2024-04-lemur-lament-vulnerable-species-stalks.html

Tags: lamentlemursscience
Previous Post

Study uncovers neural mechanisms underlying foraging behavior in freely moving animals

Next Post

‘Forgotten city:’ the identification of Dura-Europos’ neglected sister site in Syria

Poland vs Finland: UEFA World Cup Qualifiers stats & head-to-head – BBC

Poland vs Finland: Key Stats and Head-to-Head Showdown in UEFA World Cup Qualifiers

September 8, 2025
Putin Ally Issues Dire Warning About Russian Economy – Newsweek

Putin Ally Issues Stark Warning About Russia’s Economic Future

September 8, 2025
Monumental Sports & Entertainment Sets Corporate Direction at Nasdaq – PR Newswire

Monumental Sports & Entertainment Reveals Bold New Corporate Vision at Nasdaq

September 8, 2025
Trump’s new law will limit payments to hospitals that treat low-income patients – Stateline

Trump’s New Law Targets Major Cuts to Payments for Hospitals Serving Low-Income Patients

September 8, 2025
WATCH: Trump says ‘we’re not going to war’ with Chicago after threatening city on social media – PBS

Trump Reassures: ‘We’re Not Going to War’ with Chicago Despite Earlier Social Media Threats

September 8, 2025
Six Acclaimed Artists Interpret Ecology and the Landscape for ‘Ground/work 2025’ – thisiscolossal.com

Six Acclaimed Artists Interpret Ecology and the Landscape for ‘Ground/work 2025’ – thisiscolossal.com

September 7, 2025
This Stanford computer science professor went to written exams 2 years ago because of AI. He says his students insisted on it – Fortune

Stanford Professor Returns to Written Exams After Students Demand It Amid AI Rise

September 7, 2025
Tiny thumbnails may be key for rodents’ global takeover – Science News

How Tiny Thumbnails Helped Rodents Conquer the Globe

September 7, 2025
$9 Million Stock & Warrant Deal: American Trust Leads Furniture Maker Nova LifeStyle’s Strategic Offering – Stock Titan

American Trust Fuels Nova LifeStyle’s Growth with $9 Million Stock and Warrant Investment

September 7, 2025
Industry partner provides Ferris State Plastics Engineering Technology students with state-of-the-art equipment to gain in-demand skills – Ferris State University

Industry Partner Equips Ferris State Plastics Engineering Students with Cutting-Edge Technology to Boost In-Demand Skills

September 7, 2025

Categories

Archives

September 2025
MTWTFSS
1234567
891011121314
15161718192021
22232425262728
2930 
« Aug    
Earth-News.info

The Earth News is an independent English-language daily published Website from all around the World News

Browse by Category

  • Business (20,132)
  • Ecology (812)
  • Economy (830)
  • Entertainment (21,708)
  • General (16,915)
  • Health (9,872)
  • Lifestyle (843)
  • News (22,149)
  • People (832)
  • Politics (837)
  • Science (16,040)
  • Sports (21,329)
  • Technology (15,810)
  • World (812)

Recent News

Poland vs Finland: UEFA World Cup Qualifiers stats & head-to-head – BBC

Poland vs Finland: Key Stats and Head-to-Head Showdown in UEFA World Cup Qualifiers

September 8, 2025
Putin Ally Issues Dire Warning About Russian Economy – Newsweek

Putin Ally Issues Stark Warning About Russia’s Economic Future

September 8, 2025
  • About
  • Advertise
  • Privacy & Policy
  • Contact

© 2023 earth-news.info

No Result
View All Result

© 2023 earth-news.info

No Result
View All Result

© 2023 earth-news.info

Go to mobile version