Integrating Entropy Weight and MaxEnt Models for Ecotourism Suitability Assessment in Northeast China Tiger and Leopard National Park

Land, Год журнала: 2024, Номер 13(8), С. 1269 - 1269

Опубликована: Авг. 12, 2024

The development of ecotourism in protected areas faces the challenge balancing conservation and ecotourism. Ecotourism suitability assessments are essential tools for managing tourism these areas. However, current often overlook biological factors, leading to adverse effects on wildlife. This study uses Northeast China Tiger Leopard National Park as a case establish comprehensive assessment system that integrates with tiger leopard habitat suitability, thereby linking wildlife conservation. primary research methods include analysis based entropy weight method using MaxEnt model. Based zoning results map was produced. indicates very high account 45.62% total area, covering approximately 6152.563 km2, primarily located edges village clusters. These can be prioritized developing infrastructure. balance conservation, contributing significantly coordinated economic, social, environmental objectives.

Язык: Английский

Topcats and underdogs: intraguild interactions among three apex carnivores across Asia's forestscapes

Biological reviews/Biological reviews of the Cambridge Philosophical Society, Год журнала: 2023, Номер 98(6), С. 2114 - 2135

Опубликована: Июль 14, 2023

ABSTRACT Intraguild interactions among carnivores have long held the fascination of ecologists. Ranging from competition to facilitation and coexistence, these their complex interplay influence everything species persistence ecosystem functioning. Yet, patterns pathways such are far understood in tropical forest systems, particularly across countries Global South. Here, we examined determinants consequences competitive between dholes Cuon alpinus two large felids (leopards Panthera pardus tigers tigris ) with which they most commonly co‐occur Asia. Using a combination traditional novel data sources ( N = 118), integrate information spatial, temporal, dietary niche dimensions. These three faced catastrophic declines extent co‐occurrence over past century; source populations now confined Protected Areas. Analysis dyadic pairs showed clear social hierarchy. Tigers were dominant dholes, although pack strength helped ameliorate some effects; leopards subordinate dholes. Population‐level spatio‐temporal assessed at 25 locations Asia did not show pattern overlap or avoidance pairs. Diet‐profile assessments indicated that wild ungulate biomass consumption by was highest, while consumed more primate livestock prey as compared co‐predators. In terms offtake (ratio available), together harvested 0.4–30.2% available prey, highest recorded location where reach very high densities. When re‐examined context availability offtake, low spatial temporal carnivore pairs, segregation. Based on observations, make predictions for 40 Areas India temporally synchronous estimates predator densities available. We expect will lead higher competition, extreme cases, complete exclusion one species. availability, intraguild coexistence conspecific carnivores, spill‐over forest‐edge habitats subsequent prey‐switching livestock. stress dhole–leopard–tiger range is facilitated through an intricate yet fragile balance competition. Data gaps limitations notwithstanding, our study shows how insights fundamental ecology can be immense utility applied aspects like conservation management human–carnivore interactions. Our findings also highlight potential avenues future research broaden current understanding systems beyond.

Язык: Английский

The effect of a harmful algal bloom (Karenia selliformis) on the benthic invertebrate community and the sea otter (Enhydra lutris) diet in eastern Hokkaido

PLoS ONE, Год журнала: 2024, Номер 19(11), С. e0303126 - e0303126

Опубликована: Ноя. 21, 2024

In recent decades, the locally extinct sea otter ( Enhydra lutris ) has been recolonizing coast of eastern Hokkaido. Their diet includes benthic invertebrates such as bivalves, urchins, snails, and chitons. fall 2021, a harmful algal bloom (HAB) Karenia selliformis occurred across Hokkaido’s northern coasts, leading to massive mortality urchins. This dinoflagellate produces neurotoxin (gymnodimine) implicated in shellfish poisoning. To determine effect HAB on marine community, we conducted surveys using SCUBA visually monitored prey items otters affected area from 2020 2023. Following HAB, observed an 82% decrease urchin density (number m 2 ), their complete absence otters. Conversely, bivalve increased six-fold, accompanied by nearly two-fold rise percentage otters’ diet. Minimal changes were chitons with no significant alteration Despite these changes, impact dietary preferences was temporary, urchins began recovering one year later. Sea augmented bivalves compensate for reduced availability during apparent effects number or health. Our results highlight adaptability adjust according availability.

Язык: Английский