Finding a lost species in the ‘Lost World’: predicted habitat occupancy by an endemic butterfly in a Neotropical sky‐island archipelago

2021 ◽  
Author(s):  
Rafael M. Rabelo ◽  
Isabela Freitas Oliveira ◽  
William E. Magnusson
Keyword(s):  
Habitat Occupancy ◽  
Sky Island

Effectiveness of Protected Areas in Conserving the Highly Hunted Mammal Species as Bushmeat in Southern Benin

2018 ◽  
Vol 11 (1) ◽  
pp. 14-24
Author(s):  
Chabi A.M.S. Djagoun ◽  
Etotépé A. Sogbohossou ◽  
Barthélémy Kassa ◽  
Christian B. Ahouandjinou ◽  
Hugues A. Akpona ◽  
...  
Keyword(s):  
Protected Areas ◽  
Habitat Degradation ◽  
Habitat Type ◽  
Cell System ◽  
Anthropogenic Factors ◽  
Mammal Species ◽  
Occupancy Model ◽  
Habitat Occupancy ◽  
Anthropogenic Habitat ◽  
Lama Forest

Background: The habitat degradation together with fragmentation and illegal hunting represent a major threat for biodiversity conservation in Lama protected areas. Method: We used a combination of questionnaire survey with local communities for ranking the hunted mammal species as bushmeat and track surveys in gridded-cell system of 500x500 m2 (n=268) to assess at what extend the management design, the anthropogenic factors and habitat type affect the occupancy model of those mammal species. Results: Twenty mammal species have been predominantly reported by the local inhabitants to consume bushmeat species and 5 of them have been identified as the most preferable as hunted game mammals. The selection of the preferred habitat among the swampy forest, the dense forest, the tree plantations and cropland for the prioritized game species varies between species but looks similar when grouping in different orders. Some bushmeat species were found to select the more secure habitat (natural forest); suggesting the zoning system in the Lama forest can passively protect those species. However, some species such as T. swinderianus although highly hunted showed preference to anthropogenic habitat, avoiding the well secured core zone in Lama Forest. Conclusion: Our findings highlighted the importance of the zoning system with different management objectives in the habitat occupancy model of the highly hunted wildlife species.

scholarly journals Wildlife Use of Drainage Structures Under 2 Sections of Federal Highway 2 in the Sky Island Region of Northeastern Sonora, Mexico

2021 ◽  
Vol 14 ◽  
pp. 117862212098872
Author(s):  
Mirna Manteca-Rodríguez ◽  
Ricardo E Félix-Burruel ◽  
Cecilia Aguilar-Morales ◽  
Juan Carlos Bravo ◽  
Myles Traphagen ◽  
...  
Keyword(s):  
Quality Index ◽  
Black Bear ◽  
Island Region ◽  
Wildlife Use ◽  
Field Assessment ◽  
Federal Highway ◽  
Wildlife Migration ◽  
Trail Cameras ◽  
Sky Island ◽  
Wildlife Mortality

Roads and highways are 1 of the most significant obstacles affecting wildlife movement by fragmenting habitat, altering wildlife migration and use of habitat, while also being a danger to wildlife and humans caused by wildlife-vehicle interactions. To mitigate wildlife mortality on highway sections and to minimize death and injury to motorists as well, road ecologists have proposed structures adapted for the safe passage of wildlife across roads. In this study, photographic sampling was conducted using trail cameras to quantify wildlife activity and use of existing culverts, bridges, and drainages within 2 separate sections of Mexico Federal Highway 2 where previous field assessment had observed high levels of activity. These sections are important areas for the conservation of wildlife, and they are known to be biological corridors for rare species of concern such as jaguar, black bear, and ocelot. The trail cameras were operated for 1 year to document the annual cycle of wildlife movement through the area. With the photographs obtained, a database was created containing the information from each wildlife-culvert interaction. Prior to sampling, an inventory of existing culverts was conducted that measured height, width, volume, and surrounding habitat to assign a hypothesized use quality index. After testing for significant differences in use index among culverts, we recognized that all culverts were equally important for moving wildlife, and that there were no significant differences in the use of culverts by the quality index.

scholarly journals Regional variation in habitat-occupancy thresholds: a warning for conservation planning

2008 ◽  
Vol 45 (2) ◽  
pp. 549-557 ◽  
Author(s):  
Jonathan R. Rhodes ◽  
John G. Callaghan ◽  
Clive A. McAlpine ◽  
Carol de Jong ◽  
Michiala E. Bowen ◽  
...  
Keyword(s):  
Conservation Planning ◽  
Regional Variation ◽  
Habitat Occupancy

Environmental and Human Influences on Trumpeter Swan Habitat Occupancy in Alaska

The Condor ◽  
2009 ◽  
Vol 111 (2) ◽  
pp. 266-275 ◽  
Author(s):  
Joshua H. Schmidt ◽  
Mark S. Lindberg ◽  
Devin S. Johnson ◽  
Joel A. Schmutz
Keyword(s):  
Habitat Occupancy ◽  
Trumpeter Swan

scholarly journals Hard times for catadromous fish: the case of the European eel (Anguilla anguilla, L. 1758)

2021 ◽  
Vol 12 (2) ◽  
Author(s):  
Cinzia Podda ◽  
Andrea Sabatini ◽  
Francesco Palmas ◽  
Antonio Pusceddu
Keyword(s):  
Life Cycle ◽  
Anguilla Anguilla ◽  
Cultural Value ◽  
European Eel ◽  
Migration Patterns ◽  
Habitat Occupancy ◽  
Hard Times ◽  
Ancient Times ◽  
And Migration ◽  
Anthropogenic Threats

Catadromous fish species are very important organisms for their ecological, economical, and cultural value. For its complex life species catadromous fish result in worldwide decline since the beginning of the 20th century. Among the most iconic catadromous species, the European eel Anguilla anguilla L. 1758 has aroused considerable interest since very ancient times. Because, to date, many aspects of their life cycle remain relatively unknown, to implement our knowledge about the main natural and anthropogenic threats to its survivorship and identify possible solutions to preserve it, in this narrative review, we present the state of the knowledge about the life cycle, habitat occupancy, recruitment, and migration patterns of the European eel and about the major threats most likely have contributed to the decline of eels’ populations.

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