Geographic Song Discrimination in Relation to Dispersal Distances in Song Sparrows

2002 ◽  
Vol 159 (3) ◽  
pp. 221
Author(s):  
Searcy ◽  
Nowicki ◽  
Hughes ◽  
Peters
2002 ◽  
Vol 159 (3) ◽  
pp. 221-230 ◽  
Author(s):  
William A. Searcy ◽  
Stephen Nowicki ◽  
Melissa Hughes ◽  
Susan Peters

1980 ◽  
Vol 28 (2) ◽  
pp. 393-404 ◽  
Author(s):  
Susan S. Peters ◽  
William A. Searcy ◽  
Peter Marler

Ethology ◽  
2003 ◽  
Vol 109 (1) ◽  
pp. 23-35 ◽  
Author(s):  
William A. Searcy ◽  
Stephen Nowicki ◽  
Susan Peters

2003 ◽  
Vol 57 (2) ◽  
pp. 119-129 ◽  
Author(s):  
Brendan J. Reeves ◽  
Michael D. Beecher ◽  
Eliot A. Brenowitz

2013 ◽  
Vol 1 (1) ◽  
pp. 3
Author(s):  
Hanny Tioho

In order to elucidate the patterns of dispersal in scleractinian coral Pocillopora damicornis near the northern limit of its latitudinal range, a total of 50 colonies (15-25 cm in diameter) of this coral were collected from Ooshima Island, Japan, and transplanted within one hour to the area of Satsuki, where they were not present before. Three concentric areas were established such as; the parental area (PA), intermediate area (IA) and outer area (OA). A total of 831 new corals were found in 1997 while 54.3% of these occurred in PA, 30.5% in IA and 15.1% in OA. In 1998, 52.3% of recruits settled in PA, 30.5% in IA and 17.2% in OA. A significant difference in the density of recruits was found among three areas, but recruit density was not significantly different between years and there was no interaction between area and year. There was no significant difference in the number of recruits among different directions, indicating no tendency for larvae to be concentrated in one particular direction. The present study suggests that the planulae of P. damicornis have limited dispersal distances at high-latitudes© Untuk menjelaskan pola penyebaran karang scleractinia Pocillopora damicornis yang berada di batas Utara penyebarannya, total 50 koloni (15-25 cm) dari karang ini dikumpulkan dari Pulau Ooshima, Jepang, dan di transplantasikan dalam waktu satu jam ke daerah Satsuki yang tidak ditemukan jenis ini. Tiga daerah ditetapkan yaitu, Daerah Induk (PA), Daerah Tengah (IA), dan Daerah Luar (OA). Sebanyak 831 karang baru ditemukan pada tahun 1997, sementara 54,3% ditemukan di PA, 30,5% di IA dan 15,1% di OA. Pada tahun 1998, 52,3% ditemukan di PA, 30,5% di IA, dan 17,2% di OA. Ditemukan perbedaan yang signifikan untuk kepadatan antara ketiga daerah tersebut, tetapi tidak ada perbedaan yang signifikan antar tahun dan tidak ada interaksi antara daerah dan tahun. Tidak ada perbedaan yang signifikan dalam jumlah pada arah yang berbeda sehingga hal ini menunjukkan tidak ada kecenderungan bagi larva untuk terkonsentrasi pada satu arah tertentu. Penelitian ini menunjukkan bahwa planula P.


Evolution ◽  
2015 ◽  
Vol 69 (11) ◽  
pp. 2846-2861 ◽  
Author(s):  
Jane M. Reid ◽  
Peter Arcese ◽  
Greta Bocedi ◽  
A. Bradley Duthie ◽  
Matthew E. Wolak ◽  
...  

Zoo Biology ◽  
2018 ◽  
Vol 37 (3) ◽  
pp. 206-209 ◽  
Author(s):  
Lori Smith ◽  
Sara Hallager ◽  
Erin Kendrick ◽  
Katharine Hope ◽  
Raymond M. Danner

2002 ◽  
Vol 151 (2-3) ◽  
pp. 279-292 ◽  
Author(s):  
Emmanuel Paradis ◽  
Stephen R. Baillie ◽  
William J. Sutherland

Oryx ◽  
2002 ◽  
Vol 36 (3) ◽  
pp. 266-271 ◽  
Author(s):  
Juan Carlos Serio-Silva ◽  
Victor Rico-Gray

We studied changes in germination rates and dispersal distance of seeds of Ficus perforata and F. lundelli dispersed by howler monkeys (Alouatta palliata mexicana), in a small (40 ha) ‘disturbed’ and a larger (>600 ha) ‘preserved’ tropical rainforest in southern Veracruz, Mexico. The interaction between A. p. mexicana and Ficus (Urostigma) spp. is beneficial for the interacting species and has important implications for their conservation. Howler monkeys gain from the ingestion of an important food source, germination rates of Ficus seeds are improved by passage through the monkeys' digestive tract, and the seeds are more likely to be deposited in a site suitable for germination and development. Seed dispersal distances are relatively larger in the preserved site, with both the size of the forest area and the spatial pattern of Ficus affecting the dispersal process. In a large forest fragment with ‘regularly’ distributed Ficus individuals the howler monkeys move away from the seed source, increasing the probability that the seeds are desposited on a tree other than Ficus, which is important for the germination and future development of a hemiepiphytic species. In a small forest fragment with trees distributed in clumps howlers repeatedly use the same individual trees, and faeces containing seeds may be dropped on unsuitable trees more often. These are key issues when addressing conservation policies for fragmented forests.


2021 ◽  
Vol 177 ◽  
pp. 241-251
Author(s):  
Louis Bliard ◽  
Anna Qvarnström ◽  
David Wheatcroft

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