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PeerJ ◽  
2022 ◽  
Vol 10 ◽  
pp. e12587
Author(s):  
Brenda Muñoz Vazquez ◽  
Sonia Gallina Tessaro ◽  
Livia León-Paniagua

The Central American brocket deer is a vulnerable species. Geographically isolated populations have been affected by poaching and habitat fragmentation, leading to local extinctions. It is therefore important to understand this species’ habitat characteristics, particularly of resting sites, which play a crucial role in survival and fitness. We describe the characteristics and distribution patterns of Central American brocket deer resting sites at the microhabitat and landscape scales in San Bartolo Tutotepec, Hidalgo, México. We conducted eight bimonthly field surveys between November 2017 and March 2019, consisting of 32 transects of 500 m length to search for fecal pellets, footprints, scrapes, and browsed plants. At each resting site we identified, we measured canopy closure, horizontal thermal cover, protection from predators for fawns and adults, escape routes, slope from the ground, presence of scrapes, cumulative importance value of the edible plant species, and distance from the resting site to the nearest water resource to characterize the site at the microhabitat scale. At the landscape scale, we identified the type of biotope, elevation, aspect, and slope. We compared all of these parameters from resting sites with a paired randomly selected site to serve as a control. We performed a multiple logistic regression to identify the parameters associated with the resting sites and a point pattern analysis to describe their distribution. We characterized 43 resting sites and their corresponding control plots. At the microhabitat scale, resting sites were associated with higher vertical thermal cover, more concealment cover, more escape routes, more edible plant species, higher slope from the ground, and closer distance to water resources. At the landscape scale, resting sites were associated with beech forest, oak forest, secondary forest, and ravine biotopes and negatively associated with pine forest, houses, and roads. Resting sites had an aggregated spatial pattern from 0 to 900 m, but their distribution was completely random at larger scales. Our study revealed that Central American brocket deer selected places with specific characteristics to rest, at both microhabitat and landscape scales. We therefore suggest that existing habitat be increased by reforesting with native species—particularly Mexican beech forest and oak forest—to improve the deer’s conservation status in the study area.


Geoderma ◽  
2022 ◽  
Vol 405 ◽  
pp. 115401
Author(s):  
Zhaobin Mu ◽  
Dolores Asensio ◽  
Joan Llusià ◽  
Iolanda Filella ◽  
Romà Ogaya ◽  
...  

2021 ◽  
Vol 20 (2) ◽  
pp. 139-150
Author(s):  
Angel Ivan Contreras-Calvario ◽  
Abigail Mora Reyes ◽  
Rene Avalos Vela ◽  
Jorge L. Castillo Juárez ◽  
M. Delia Basanta

The central mountain region of Veracruz is one of the richest areas of herpetofauna in Mexico. The steep topographic gradient of this region is associated with climatic gradients that enable the occurrence of highly diverse herpetofauna communities. We tested differences among habitats to herpetofauna in an urban area, pine forest, oak forest, and riparian forest of municipality Camerino Z. Mendoza, Veracruz, Mexico. We conducted two-day monthly surveys between 2015 and 2017 in 69 sites from fragments of an urban area, riparian forest, Quercus forest, and Quercus-Pinus forest and tested for differences in herpetofauna species among these fragments. We found a total of 11 amphibian and 33 reptile species, and a high composition dissimilarity and species replacement among the sites. Our results amplified significantly the species-records within Camerino Z. Mendoza, and showed a great variation of amphibian and reptile composition among sites, highlighting the current role of these forests as a reservoir for herpetofauna and their importance for future conservation strategies in the region.


2021 ◽  
Vol 3 (10) ◽  
pp. 46-53
Author(s):  
Alexander Yatsyna ◽  

As a result of the research, the species composition of lichens and closely related fungi of the oak forest of the reserve «Vydritsa» (Republic of Belarus, Gomel Region) has been revealed. An annotated list, including 113 species has been compiled, 106 of these species are lichens, 6 – non-lichenised saprobic and 1 – lichenicolous fungi. Species Calicium adspersum, Cetrelia olivetorum, Chaenotheca chlorella, Cladonia caespiticia, Lobaria pulmonaria and Parmotrema stuppeum are included in the Red Data Book of Belarus and are listed for the first time for the Svetlogorsk district and the reserve «Vydritsa». The indicator lichens of old-growth oak forests include 20 species; 28 species were recorded in all 12 surveyed localities.


Geoderma ◽  
2021 ◽  
Vol 403 ◽  
pp. 115385
Author(s):  
Katherine A. Heckman ◽  
Christopher W. Swanston ◽  
Margaret S. Torn ◽  
Paul J. Hanson ◽  
Lucas E. Nave ◽  
...  

2021 ◽  
Vol 40 (4) ◽  
pp. 392-400
Author(s):  
Diana Yuzyk ◽  
Angela Chaplyhina

Abstract The diet spectrum of the great tit (Parus major L., 1758) was studied in transformed forests of northeastern Ukraine. Four forest ecosystems were surveyed: four model sites in oak woodlands and in a pine–oak forest with different stages of recreational digression. Forty-seven taxa of invertebrates (n = 325) were detected in the ration of great tit chicks. Insecta (72.4%): Lepidoptera (seven families, 35.9%), Hymenoptera (two families, 21.0%), Diptera (seven families, 2.7%) and Coleoptera (four families, 1.8%) were among them. In terms of the qualitative composition of invertebrates (20 species, 42.6%) and the proportion of seized food objects (159 objects), phytophages prevailed. The food composition of great tit chicks was the most similar in territories MS1 and MS4. It contained six common taxa for these territories (Stugren–Radulescu Index = 0.7, Jaccard = 0.2, Sorensen = 0.3).


2021 ◽  
Vol 42 (17) ◽  
Author(s):  
Enrique Hernández-Rodríguez ◽  
Eduardo Mendoza ◽  
Nicole J. Fenton ◽  
Paola Peña-Retes
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