IBOV 171,006.10 ▼ 2.68% IPC MEX 69,182.39 ▼ 0.76% MERVAL 2,848,945 — — USD/BRL5.34▼ 0.11% USD/MXN18.71▲ 0.38% USD/CLP987.40▲ 0.29% USD/COP3,164▲ 0.46% USD/PEN3.45▲ 0.09% USD/ARS1,542▼ 0.02% USD/UYU40.21▲ 3.60% USD/PYG5,818▲ 3.40% USD/BOB11.92▲ 3.40% USD/DOP60.97▲ 1.45% USD/CRC451.45▲ 2.55% USD/GTQ7.64▲ 3.31% USD/HNL26.87▲ 0.25% USD/NIO36.62▼ 0.02% USD/VES886.67▼ 0.13% USD/PAB1.00— 0.00% USD/BZD2.00— 0.00% USD/JMD157.89▲ 2.49% USD/TTD6.75▲ 2.73% EUR/BRL5.96▲ 0.07% BRENT 109.58 ▼ 5.38% WTI 100.12 ▼ 1.61% IRON ORE 161.91 — — COPPER 6.65 ▲ 2.24% GOLD 4,073 ▲ 0.85% SILVER 54.49 ▲ 0.70% SOY 1,250 ▲ 0.70% CORN 450.25 ▼ 1.04% WHEAT 614.75 ▼ 0.20% COFFEE 294.35 ▼ 2.19% SUGAR 19.26 ▲ 0.84% ORANGE JUICE 143.20 ▲ 5.45% COTTON 77.90 ▼ 1.47% COCOA 5,581 ▲ 1.66% BEEF 230.73 ▲ 0.33% CATTLE 346.40 ▼ 1.00% LITHIUM 62.43 ▲ 1.89% PETR4 53.31 ▼ 1.06% VALE3 62.88 ▼ 2.33% ITUB4 41.42 ▼ 0.67% BBDC4 15.69 ▼ 1.63% ABEV3 15.40 ▲ 0.20% BBAS3 17.59 ▲ 0.69% B3SA3 15.27 ▲ 1.33% WEGE3 45.78 ▲ 2.81% PRIO3 69.21 ▼ 2.71% SUZB3 47.14 ▼ 0.55% RENT3 31.14 ▼ 1.67% AZZA3 16.72 ▲ 1.15% CSAN3 2.69 ▼ 2.89% RAIZ4 0.34 — 0.00% PCAR3 2.22 ▼ 3.48% GMAT3 3.74 ▲ 2.19% PSSA3 47.75 ▼ 0.89% CVCB3 0.98 — 0.00% POSI3 3.56 ▼ 0.84% SLCE3 16.97 ▼ 2.75% NATU3 5.68 ▼ 3.89% BRKM5 3.80 ▲ 19.50% RANI3 7.34 ▼ 0.54% CSNA3 4.76 ▼ 4.99% IBOV 171,006.10 ▼ 2.68% IPC MEX 69,182.39 ▼ 0.76% MERVAL 2,848,945 — — USD/BRL 5.34 ▼ 1.32% USD/MXN 18.69 ▲ 0.62% USD/CLP 983.47 ▼ 0.57% USD/COP 3,149 ▲ 3.06% USD/PEN 3.45 ▲ 0.17% USD/ARS 1,537 ▼ 0.28% USD/UYU 40.21 ▲ 3.57% USD/PYG 5,803 ▲ 3.78% USD/BOB 11.97 ▲ 4.93% USD/DOP 60.54 ▲ 1.83% USD/CRC 451.24 ▲ 2.13% USD/GTQ 7.64 ▲ 3.23% USD/HNL 26.87 ▲ 3.37% USD/NIO 36.62 ▲ 2.81% USD/VES 885.08 ▼ 0.13% USD/PAB 1.00 — 0.00% USD/BZD 2.00 — 0.00% USD/JMD 157.69 ▲ 2.63% USD/TTD 6.71 ▲ 2.07% EUR/BRL 5.95 ▲ 7.53% BRENT 109.58 ▼ 5.38% WTI 100.12 ▼ 1.61% IRON ORE 161.91 — — COPPER 6.65 ▲ 2.24% GOLD 4,073 ▲ 0.85% SILVER 54.49 ▲ 0.70% SOY 1,250 ▲ 0.70% CORN 450.25 ▼ 1.04% WHEAT 614.75 ▼ 0.20% COFFEE 294.35 ▼ 2.19% SUGAR 19.26 ▲ 0.84% ORANGE JUICE 143.20 ▲ 5.45% COTTON 77.90 ▼ 1.47% COCOA 5,581 ▲ 1.66% BEEF 230.73 ▲ 0.33% CATTLE 346.40 ▼ 1.00% LITHIUM 62.43 ▲ 1.89% PETR4 53.31 ▼ 1.06% VALE3 62.88 ▼ 2.33% ITUB4 41.42 ▼ 0.67% BBDC4 15.69 ▼ 1.63% ABEV3 15.40 ▲ 0.20% BBAS3 17.59 ▲ 0.69% B3SA3 15.27 ▲ 1.33% WEGE3 45.78 ▲ 2.81% PRIO3 69.21 ▼ 2.71% SUZB3 47.14 ▼ 0.55% RENT3 31.14 ▼ 1.67% AZZA3 16.72 ▲ 1.15% CSAN3 2.69 ▼ 2.89% RAIZ4 0.34 — 0.00% PCAR3 2.22 ▼ 3.48% GMAT3 3.74 ▲ 2.19% PSSA3 47.75 ▼ 0.89% CVCB3 0.98 — 0.00% POSI3 3.56 ▼ 0.84% SLCE3 16.97 ▼ 2.75% NATU3 5.68 ▼ 3.89% BRKM5 3.80 ▲ 19.50% RANI3 7.34 ▼ 0.54% CSNA3 4.76 ▼ 4.99%
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Thursday, October 29, 2026

Africa Eastern Africa

Ecosystem Shifts in Kenya: A Tale of Ants, Lions, and Zebras

By · February 1, 2024 · 2 min read

Big-headed ants, introduced to Kenya’s Ol Pejeta Conservancy, have significantly altered local wildlife through a chain reaction.

University of Wyoming research shows these Mauritius-origin ants displace native acacia ants. These acacia ants guard whistling-thorn trees from elephant overgrazing.

With acacia ants gone, unopposed elephants overgraze acacia trees. This diminishes tree cover. Such a reduction affects local lions.

They use trees for hunting zebra camouflage. With fewer trees, lions struggle to hunt zebras. Consequently, they target African buffalo, a tougher prey.

This situation exemplifies ecosystem complexities and the vast effects of invasive species. Despite their size, big-headed ants alter landscape and predator-prey dynamics.

Interestingly, lion numbers stay steady, indicating their adaptability.

Ecosystem Shifts in Kenya: A Tale of Ants, Lions, and Zebras.
Ecosystem Shifts in Kenya: A Tale of Ants, Lions, and Zebras.
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Yet, this stirs concerns about invasive species’ long-term ecosystem impacts, especially on predator-prey balances.

Kenya’s savannah events remind us of ecosystems’ fragile equilibrium and the risks of introducing foreign species.

They underscore the importance of ongoing research. Understanding these dynamics is crucial.

It helps devise invasive species management and biodiversity preservation strategies.

The big-headed ants in Kenya show how slight environmental changes can have major effects. This emphasizes the necessity of protecting our ecosystems.

Other examples

The introduction of European rabbits in Australia led to rapid overgrazing and vegetation loss, causing soil erosion and endangering native species.

Efforts to manage their population include releasing the myxoma virus.

Initially seen as beneficial, zebra mussels from Russia have caused algal blooms, harmed native species, and damaged North American waterway infrastructure.

Cane toads were introduced in Australia to control pests but became invasive themselves, spreading widely and disrupting ecosystems by poisoning native predators.

Examples like Kenya’s big-headed ants illustrate the significant effects of invasive species, emphasizing the need for environmental care and biodiversity preservation.

This article was produced by The Rio Times’ automated newsroom system. How we use AI · Report an error · Editorial responsibility: Matthias Camenzind, Editor-in-Chief

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