Ecological drivers of helminth infection patterns in the Virunga Massif mountain gorilla population

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60077344%3A_____%2F22%3A00568902" target="_blank" >RIV/60077344:_____/22:00568902 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68081766:_____/22:00552791 RIV/60460709:41210/22:92539 RIV/00216224:14310/22:00128100 RIV/00216208:11310/22:10448789 RIV/62157124:16170/22:43879907

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S2213224422000074?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S2213224422000074?via%3Dihub</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.ijppaw.2022.01.007" target="_blank" >10.1016/j.ijppaw.2022.01.007</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Ecological drivers of helminth infection patterns in the Virunga Massif mountain gorilla population

Popis výsledku v původním jazyce

The Virunga Massif mountain gorilla population has been periodically monitored since the early 1970s, with gradually increasing effort. The population declined drastically in the 1970s, but the numbers stabilized in the 1980s. Since then, the population has been steadily increasing within their limited habitat fragment that is surrounded by a dense human population. We examined fecal samples collected during the Virunga 2015-2016 surveys in monitored and unmonitored gorilla groups and quantified strongylid and tapeworm infections using egg counts per gram to determine environmental and host factors that shape these helminth infections. We showed that higher strongylid infections were present in gorilla groups with smaller size of the 500-m buffered minimum-convex polygon (MCP) of detected nest sites per gorilla group, but in higher gorilla densities and inhabiting vegetation types occurring at higher elevations with higher precipitation and lower temperatures. On the contrary, the impact of monitoring (habituation) was minor, detected in tapeworms and only when in the interaction with environmental variables and MCP area. Our results suggest that the Virunga mountain gorilla population may be partially regulated by strongylid nematodes at higher gorilla densities. New health challenges are probably emerging among mountain gorillas because of the success of conservation efforts, as manifested by significant increases in gorilla numbers in recent decades, but few possibilities for the population expansion due to limited amounts of habitat.

Název v anglickém jazyce

Ecological drivers of helminth infection patterns in the Virunga Massif mountain gorilla population

Popis výsledku anglicky

The Virunga Massif mountain gorilla population has been periodically monitored since the early 1970s, with gradually increasing effort. The population declined drastically in the 1970s, but the numbers stabilized in the 1980s. Since then, the population has been steadily increasing within their limited habitat fragment that is surrounded by a dense human population. We examined fecal samples collected during the Virunga 2015-2016 surveys in monitored and unmonitored gorilla groups and quantified strongylid and tapeworm infections using egg counts per gram to determine environmental and host factors that shape these helminth infections. We showed that higher strongylid infections were present in gorilla groups with smaller size of the 500-m buffered minimum-convex polygon (MCP) of detected nest sites per gorilla group, but in higher gorilla densities and inhabiting vegetation types occurring at higher elevations with higher precipitation and lower temperatures. On the contrary, the impact of monitoring (habituation) was minor, detected in tapeworms and only when in the interaction with environmental variables and MCP area. Our results suggest that the Virunga mountain gorilla population may be partially regulated by strongylid nematodes at higher gorilla densities. New health challenges are probably emerging among mountain gorillas because of the success of conservation efforts, as manifested by significant increases in gorilla numbers in recent decades, but few possibilities for the population expansion due to limited amounts of habitat.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10618 - Ecology

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2022

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

International Journal for Parasitology: Parasites and Wildlife

ISSN

2213-2244

e-ISSN

2213-2244

Svazek periodika

17

Číslo periodika v rámci svazku

JAN

Stát vydavatele periodika

AU - Austrálie

Počet stran výsledku

11

Strana od-do

174-184

Kód UT WoS článku

000748397900002

EID výsledku v databázi Scopus

2-s2.0-85123620067