137 



Groups . Birds were more abundant in Combined/Early Secondary Forest than in Late 

 Secondary Forest without Gardens or Late Secondary Forest with Gardens. Among the mammalian 

 groups, rodents were most abundant and had a higher density in Late Secondary Forest without 

 Gardens (13.5 individuals/km^) than in Late Secondary Forest with Gardens or Combined/Early 

 Secondary Forest. Birds had a higher population density in Combined/Early Secondary Forest (26.3 

 individuals/km^) than in Late Secondary Forest without Gardens or Late Secondary Forest with 

 Gardens. 



Game versus nongame taxa . Game mammals and birds were different from each other in that 

 game mammals were most abundant in Late Secondary Forest with Gardens (8.4 individuals/km^), 

 while game birds were most abundant in Combined/Early Secondary Forest (21.8 individuals/km-; 

 Table 4-2). Nongame birds and mammals were similar in that their respective population densities 

 were comparable in Late Secondary Forest without Gardens and Late Secondary Forest with Gardens. 



Discussion 

 Number of Taxa and Sightings 



A total of 16 taxa and 150 individuals of mammals and 7 taxa and 90 individuals of birds were 

 sighted during 121 censuses at Ejido X-Hazil y Anexos (total distance censuses = 240.460 km; total 

 time censused = 244.27 h; Appendices H and J). These sightings did not include all of the taxa in the 

 study area, however. About 25 taxa of non volant manmials, including game and nongame species, 

 were killed by hunters (see Appendix F) or sighted during censuses, while another 4 taxa were sighted 

 incidental to other activities during the study. Thus, excluding small rodents, there were about 29 taxa 

 of nonvolant mammals at the study area. 



Compared with the number of nonvolant mammals sighted at other Neotropical sites, the 

 number of taxa sighted at Ejido X-Hazil y Anexos was low. For example, Glanz (1990) reported 39 

 species for Barro Colorado Island, Panama. In Costa Rica, Wilson (1983) reported 43 species for La 



